B18b1 valve adjustment specs

43. Clip your exhaust feelers to a cooling fin and insert the exhaust feelers (the 30's) into the exhaust valve assembly. Note: The exhaust valve assembly is at the 'front' the cylinder head near the exhaust headers. 44. Make sure all four feelers are in place at the same time.

Honda CB350 / CL350 / SL350 engine valve (rocker arm) & cam chain adjustment; ... What is the valve adjustment / tappet clearance specs for the Honda CB350 / CL350 / SL350? Brenden December 17, 2018 03:00; Follow. The standard valve clearance is: Intake: .05 mm (0.002" inch) ...Basically works like this; start with #1 cylinder, bar the engine over until the intake valve rocker moves. Keep turning engine until the intake valve rocker just closes the intake valve, "end of intake". Now adjust #1 exhaust valve rocker. Bar engine over until exhaust valve rocker just begins to react (move), "beginning of exhaust", adjust ...30 posts · Joined 2010. #4 · Jan 26, 2011 (Edited) sweet, thanks mustang, i will do exactly what you posted, it was the 3rd time that i've tried this valve adjustment, guess i was unlucky all 3 times, to be 180 deg out. 2005 KAWASAKI BRUTE FORCE 650 SRA CAMO ITP C-SERIES TYPE 5 WHEELS ITP 27X10X12 MUDLITES. Like.The IAC valve changes the amount of air bypassing the throttlebody in response to a current signal from the ECM (Engine Control Module) in order to maintain proper idle speed. It is located if you are looking directly at your engine B18c1, dead center top of your valve cover and slight behind below the cover or for the B18B1 is located in the ...ok, so i finally got around to determining the exact specs of our stock camshafts. i accomplished this with the use of an 18 inch moroso degree wheel, a digital micrometer with depth function (clamped to head tightly, spaced with hard cardboard to get the right angle (perfectly parallel to valve)), a strip of exhaust hanger for a pointer bolted to the t-belt cover bolt near the motor mount, my ...

4816 posts · Joined 2006. #5 · Mar 29, 2021. If your tuner isn't checking base timing and adjusting if necessary, take your car and run. That's a standard first step before any tuning begins. 770whp/500wtq @31psi E85. Click Me: Check Out My Build Thread - From Stock to 770WHP. Like. Manik511 Discussion starter.The B18B1 is a 1.8-liter engine that was used in the 1996-2000 Honda Civic Si. The B20B is a 2.0-liter engine that was used in the 1997-2001 Honda CR-V. Both engines are inline 4-cylinder engines, but the B20B has an extra 20% displacement over the B18B1. This difference in displacement gives the B20B more torque than the B18B1, which results ...I burnt 4 of my exhaust valve well past 300,000 mile on OE 4 cylinder set-up, and have taken to setting exhaust side of turbo head almost to MAX clearance, as we seeing torch cut ex valves on some of our turbo engines. Adjustment require removal of cams, how do you do that, we remove chain cover, chains, tensioners, cams, and then buckets.Enfield 650 Valve Adjustment. This blog explains how to adjust the valves on a Royal Enfield 650 Interceptor. This was the first valve adjustment my motorcycle has had, and it occurred at the 500-mile mark. The first valve adjustment is an important one, as decreases in the valve gap will typically be more severe as the engine is breaking in.The valve clearance specification is different for intake and exhaust valve. Valve clearance adjustment must be checked and adjusted, 1) at the time of periodic inspection, 2) when the valve mechanism is serviced, and 3) when the camshaft is disturbed by removing it for servicing. Valve clearance (when cold): IN.: 0.08-0.13 mm (0.003-0.005 in)

The 1981 Chevrolet C-10 truck was part of a line of C- and K-series trucks produced by the carmaker for decades. The truck came in a number of variations with different engine opti...Valve adjustment specs. cobrajet428. 1,675 2. cobrajet428. 1,675 2. Post Jun 28, 2009 #1 2009-06-28T21:55+00:00. I've read some posts on valve adjustments here and compared to most ofthe specs mentioned here mine seem high. I run a Crane roller with 620/595 lift and it calls for .028 int and .030 exh hot. My engine builder …Mar 1, 2019 · If you hone it, you would still be using 81.00mm pistons and piston rings (assuming the short block hasn't already been bored-out by the previous owner). However, if the measurements are off, you would need to bore it to 81.25mm or 81.50mm, depending on the discrepancy. Lets assume the measurements are within Honda specs. Too loose=excessive noise Too tight =burned valve or distorted. ENGINE COLD:For .004 loosend locknut and screw adjuster with finger untill there is no up and down play. Then back the adjuster out 1/2 flat (1/8 turn). When you tightne locknut, make sure you have a wrench on the adjuster so it doesn't screw in.DNJ Master Engine Rebuild Kit. Includes: Piston Set, Piston Ring Set, Main Bearings Set, Rod Bearings Set, Full Gasket Set, Thrust Washer, Timing Belt, Oil Pump. Engine Details: w/ Oil Pump & Timing Belt Or Timing Kit If Applicable, Master Kit. Brief Fitment Information: [1996-2001] / Acura / Integra / Liters: 1.8 / L4 / Valves: 16 / B18B1.

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Hell your gonna need a valve job and new valve stem seals anyways. A $250 mod usually turns into $500 very quickly and easily. Youll buy new valves, valve stem seals, have the valve job done and will prob wanna look into new guides since your already replacing everything else. See how that $250 just went into 500 very quickly.S54 - valve adjustments. "Since the S54 engine has the mechanical method of valve actuation, which replaced the hydraulic lifters used on the S52 engine, it requires periodic inspection and clearance adjustments every 15,000 miles, depending how the engine is run". My S54 engine has always had more valve noise than my S52 engine.Shown above is one cam cover, sequence is the same for intake and exhaust cam cover. #1-10 20ft-lbs (240in-lbs) #11-14 7.2ft-lbs (86in-lbs) (94+ B18C specs) #1-10 16ft-lbs (192in-lbs) #11-14 8ft-lbs (96in-lbs) (B16A specs) **not sure what the specs are for non-VTEC motors, sorry**. Seat each camshaft by pushing it towards the dizzy side of ...The AERA Technical Committee offers the following information concerning a revised valve lash for 2011-2016 Isuzu 5.2L, 4HK1 diesel engines. This information should be referenced anytime engine maintenance or engine building is occurring. Earlier engines (2005-2010) used significantly less lash than current engines.hey my engine builder told me about a valve adjustment method he's used to get more power. what he does is instead of adjusting both intake valves to .008 and the exhaust valves to .010, he'll adjust one intake valve to .004 and the other to .012. and of coarse the exhaust valves to .006 and .014. basically +/- .004.

Intake Valves, adjustment 10 W2004459 With engine cold (140 F or less), adjust valve clearance to 0.2 mm (0.008 in.). Hold adjusting screw in place and torque-tighten lock nut to 38 ± 3 Nm (28 ± 2 ft-lb). Note: Mark each valve rocker lever as you adjust it to know which valves have already been adjusted. 38 ± 3 Nm (28 ± 2 ft-lb) 11To adjust the valves, simply loosen the retaining nut that holds the adjusting screw secure and turn the screw until the feeler gauge fits snugly, as shown in Figure 5 . All 356 engines should be adjusted to the valve clearance specifications listed in the table in the 356 Technical Specifications Section .07Versa6MT. 691 posts · Joined 2013. #2 · Oct 22, 2013. It probably needs a valve adjustment, but these (like many Nissan motors) use shim and bucket lifters, to bring the clearance back to spec you need to order the proper thickness shim. I've explored doing it since my 1.8 has 325 000KM on it, has sounded like a TDI at idle for a long time.Follow me on Instagram: https://www.instagram.com/nic3guyeddie/In this video I briefly discuss how to do a valve adjustment on any B series vtec engine. A 10...Valve Clearance. Intake: 0.21－0.25 mm (0.009－0.009 in) Exhaust: 0.25－0.29 mm (0.010－0.011 in) Edit: Updated link to Si (k24z7) and added specs. 2013 Civic Si Coupe (Rallye Red) Vit Tuned, HFP Suspension, Viper Remote Start. Progress 24mm rear sway bar, Energy greasable bushings, Moog greasable endlinks, SPC adjustable rear camber arms.Jun 14, 2018 · VLOG 27: While swaping my valve cover I decided to do a valve adjustment. Gotta make sure the Crosser is in tip top shape!Check out Part 1: Removing & Re-ins... k24 valve adjustment specs. Jump to Latest Follow 4K views 3 replies 2 participants last post by nickwankle Sep 17, 2006. N. nickwankle Discussion starter 1352 posts · Joined 2003 Add to quote; Only show this user #1 · Sep 17, 2006. could someone point in the right direction of valve specs for a k24a1 please (prob called the valve clearance)? ...Step 5: Applied a bit of engine oil onto the bolts and hand screw all 8 center bolts and washers. Next, hand screw the remaining 12 bolts in the order shown in step 5. In this order, gradually tightened bolts 5, 6, 7, and 8 1/4 to 1/2 turn at a time to push the camshaft holder down evenly.Hook up your bump starter. One end of it clips to the positive battery post and the other is connected to the bottom opening in the cold start injector connection, female side. You are now ready to adjust the valves. It usually takes me about 3 minutes from the time I shut the truck off to get to the valves.

Please someone tell me the correct valve specs on adjusting them. Save Share. Like. Sort by Oldest first ... It's hit and miss my outlander went 4500 miles before I had to adjust them but at around 2000 miles my commander needed them adjusted . Save Share. Like. ms4x4outlaws Discussion starter

The valve guide may also be worn, but these are only servicable in some of our L-Head engines. Step 3: Measure the thickness of the valve head, known as the valve head margin, using a caliper (part number 19199). Replace the valve if the margin measures less than 0.016 inches (0.4 mm). Step 4: Examine the surfaces of the valve face and seat.Advertisement The flame of gas range burners should be steady and slightly rounded, with a light-blue tip. The flame should be quiet and should respond to adjustments made at the c... B18A / B18B - Camshafts. The B-series Honda DOHC engines are the most popular and well known of the Honda engines. The B18A, B18B and B20B platform is non VTEC camshaft design. First introduced in Japan back in 1986 in the Honda Accord, the B18A made it's USDM debut in 1990 as the B18A1 found in the Acura Integra RS/LS/GS and remained until ... Method 1- These people say set to TDC and a little past (engines with compression release) and then adjust both valves to specs. Method 2- These people say turn engine until 1 valve is completely compressed and the adjust the other valve to spec. Then turn engine and repeat procedure on the opposite valve. (as an aside, many people say set both ...Supertech B18A1 B18B1 77lb Dual Valvesprings Retainers Kit Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer ...In this video I show you how to adjust your valve clearance or valve lash on your 2006 to 2014 Honda Civic with an R series 1.8L engine. This procedure is ve...Make sure your valve springs are set to the correct installed height of (1.320-1.325 in. or 33.53-33.66 mm) and check that the lost motion devices (for VTEC B series engines) are all present and in good shape. …

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With the nut loose, make sure the nut spins freely from the screw. Set the valve adjustment with a feeler gauge between the adjuster screw and the top of the valve stem. Use a .006" (with aluminum pushrods, .000 if Chromoly) gauge and screw in the screw until the rocker no longer moves. The feeler gauge should move freely between the screw and ...Valve adjustment specs. cobrajet428. 1,675 2. cobrajet428. 1,675 2. Post Jun 28, 2009 #1 2009-06-28T21:55+00:00. I've read some posts on valve adjustments here and compared to most ofthe specs mentioned here mine seem high. I run a Crane roller with 620/595 lift and it calls for .028 int and .030 exh hot. My engine builder …Hi everyone, I have a 1995 Acura Integra LS 4 door which has a B18B1 ODB1 engine. I'm attempting to replace my PCV Valve which according to the diagram below is #8. Which in the engine bay for my engine type looks like: However, when I pulled it apart, it looked nothing like the L-shaped PCV pipe that it was supposed to be.These specs are for a B20B with a B18B1 (ls) intake so in theory it should cover most B-Series stuff. It also applies to some D-Series stuff (throttle body, etc). # ... (~8) m6x1.0 acorn nuts (amount varies by valve cover!) # Distributor: (3) M8x1.25x28 flange bolts (30mm works too)Hydraulic relief valves limit the maximum system pressure to protect system components. The valves also limit the maximum output force of the hydraulic system. Although they have a...B18B1 engine: Intake-0.003-0.005 in. (0.08-0.12mm), Exhaust-0.006-0.008 in. (0.16-0.20mm) For example the first number on intake is the tightest it should be .08 …Check the valve clearance for cylinder 1. The spec for the B18A is .003 inches on the intake, .006 on the exhaust. On my engine that has probably never had a valve …Inlet and EGR mixer duct sensor EGR cooler assembly EGR control valve Valve cover Breather assembly EGES-265-2 Read all safety instructions in the "Safety Information" section of this manual before doing any procedures. ... Page 155 Valve and brake lash adjustments with piston 6 at TDC compression Figure 206 Valve lash adjustment …Boxers are super easy to check valves. The R1200R had shims, but the R18 has tappets; so the R18 might need adjustment more often, but it'll be way easier to perform them. I have every expectation that the R18 will be easy to do valve maintenance. I was hoping to hear personal info from those who have done it. ….

Its 121 ft-lbs. of torque made the 1.8L powerplant stand out. In 1994-2001, the B18A1 was updated to the B18B1 that was used in Acura Integra RS/LS/GS models. B18B1 engines became popular among Honda enthusiasts as “LS swaps”. As well as producing 142 horsepower and 127 lb.-ft of torque, the 1.8L also became the donor for the popular LS ...%PDF-1.7 4 0 obj /BitsPerComponent 8 /ColorSpace /DeviceRGB /Filter /DCTDecode /Height 3295 /Length 1255155 /Subtype /Image /Type /XObject /Width 2545 >> stream ...what tools will i need to adjust the valve clearance on my 92 gs? specifically, is it necessary to have a special valve adjustment tool, or can i use a... Menu. Home. Forums. New posts ... Yeah i used those specs but those were for a 92 integra and i did some research and found that the 91 were a little bit more looser INTAKE: 0.006" - …The B18A, B18B and B20B platform is non VTEC camshaft design. First introduced in Japan back in 1986 in the Honda Accord, the B18A made it's USDM debut in 1990 as the B18A1 found in the Acura Integra RS/LS/GS and remained until 1994 when Honda/Acura released the B18B1 for the 94-95 Acura Integra RS/LS. The Acura badge is only used in North America.Valve Adjustment Specs. Jump to Latest Follow 22K views 16 replies 5 participants last post by PodSix Jan 19, 2010. N. NRM Discussion starter 118 posts · Joined 2007 Add to quote; Only show this user #1 · Jan 18, 2010. MY GOSH. I'm at my folk's house for the week and stuck on 56K!!! ...on valve adjustment, dont overthink it. valve adjustment on these lumps is easy. just loosen the locknut up and go for it from scratch. your numbers are close but unnecessarilly fussy. i use click 'n' listen when i do 0.002 and 0.004 valve adjustments. its primitive, and works fine.It says to adjust to .012 but I adjusted mine to .010 which is a touch tighter and I know a lot of other guys do the same, it tends to run a little smoother and quieter. But you can adjust to what you prefer, but no looser than .012 and I wouldn't go any tighter than .010. Sent from AutoGuide.com Free App. 2001 GMC CC/SB LB7.Supertech B18A1 B18B1 77lb Dual Valvesprings Retainers Kit Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer ... B18b1 valve adjustment specs, Learning the proper valve adjustment procedure for V-type engine applications ensures a smooth-running, powerful, and reliable vehicle. Skip to navigation Skip to content. Speak with a real person (775) 746-4887 (8:00 AM - 6:00 PM Pacific Time) ... 0.003″ of change to the base valve lash specification. Crazy experimentation can destroy an engine!, The Honda B18C engine build went together with a compression ratio set at 11.2:1 and is installed in a 1990 Honda CRX, which is now capable of 8-second 1/4-mile times! "We're going to put this engine/car in the PSCA Pro Class locally, and then we'll try to get into some IFO (Import Face-Off) races in Vegas and Arizona as well," Cahalan ..., Main Specifications Table for the Honda B18B1 Engine Specs: Specification Honda B18B1 Engine; Cylinder Head Material: Aluminum Alloy: Valve Configuration: DOHC 16-Valve: Valve Size (Intake/Exhaust) 34 mm / 30 mm: Camshaft Type: DOHC: Displacement: 1.8 L (1834 cc) Bore x Stroke: 81 mm x 89 mm: Rod Length: 137.01 mm: Compression …, RSXDC5 said: .08 Intake and .010 Exhaust. Remember to only set valve lash on the cylinders that have do not have any pressure being exerted on the valvesprings through the lobes on the camshafts. You will have to turn your engine over accordingly via the crank pulley to achieve this. Let me know if you have any other questions., Step 4: Set the Valve Clearance. Start with the intake valve. Insert the correct feeler gauge between the valve stem and the adjusting screw. Gently tighten the adjusting screw until you feel slight resistance against the feeler gauge. Then, loosen the adjusting screw until the feeler gauge can move freely with a slight drag., Some notes from the factory manual while adjusting the valves: 1. Valves should be adjusted cold; at a cylinder head temperature of less than 100 degrees F (38 degrees C) 2. Adjustment is the same for intake and exhaust valves. 3. After adjusting, retorque the crankshaft pulley bolt to 130 lb-ft. The specs are: Intake: 0.15-0.19mm …, B-SERIES ENGINE SPECIFICATIONS Engine Vehicle Year C/R Displacement HP/Torque Bore (mm) Head CC's Stroke Con Rod Ratio Con Rod Length (mm) B16A DOHC VTEC (JDM) EF8, 9/ DA6, 8/ EG2, 6, 9/EK4 88-91 10.2:1* 1595 160hp/112lb-ft 81 42.7 77.0 1.74 134.00 B16A DOHC VTEC (JDM) EF8, 9/ DA6, 8/ EG2, 6, 9/EK4 92+ 10.4:1* 1595 170hp/116lb-ft 81 42.7 77.0 1 ..., Then you need to adjust your cam gears so that the little lines on each one line up with each other. Put your belt back on, and your done. If your ignition timing is off, which wouldn't have a dramatic effect on anything, just line up the marks on your distributor. There really isn't a need for a timing light on these engines, unless you have ..., A valve adjustment requires an accuracy of .001 inch! The head has to be torqued to the block. The engine has to be cold from sitting overnight. ... Special Tools. The B18A requires a 12mm jam nut adjustment tool (look up the specs for your particular engine). The specs call for a feeler gauge tool that has the following: .003, .004, .006, .007 ..., Compression ratio 9.2, power 132 hp at 6000 rpm, torque 164 Nm at 5000 rpm. Installed on Acura Integra. For Japan, the B18A1 engine developed 142 hp at 6500 rpm, a torque of 178 Nm at 6100 rpm. The JDM version is found on the Honda Integra. B18B1 – improved B18A1, where they replaced the air filter, changed the angle of the fuel injectors and ..., Re: Valve adjustments on a CB400f. I hate the X's & O's method in the manual - this is my preferred valve adjustment method. First take out the sparkplugs so the engine will be safe to rotate using the 23mm nut under the points cover (-do not use this nut to rotate the engine with the plugs in as it is actually only as strong as the 10mm (M6 ..., The valve train is an intricate assembly of rocker arms, valve springs, retainers, and hydraulic lash adjusters, all synchronized by camshafts for precise valve operation. Optimal Power-to-Weight Ratio. The engine’s redline is set at a formidable 8100 rpm, surpassing the 7500 rpm of the B18B1., Download the valve adjustment sheet here 5 cylinder sheet 4 cylinder sheet . The specs for the adjustment are on the core support for your model. All the NON turbo 4cyl and 5cyl diesels use (.10mm or .004 inches) intake and (.30mm or .012 inches) exhaust. The turbo models use (.10mm or .004 inches) intake and (.35mm or .014 inches) exhaust., The B18B block is good, but it lacks certain high RPM stability characteristics that the C blocks have. The ITR crank is better than both the GSR and LS crank because it is fully counterweighted (less engine killing vibration) and is made of stronger steel. Whatever you do, get the Helms manual. Nothing else will do., Apr 5, 2018 · Honda B18C (B18B) engine reliability, problems and repair. In 1990, a new B18A engine was added to B-series of Honda engines; this engine first appeared in 1990 on Acura Integra. B18 cylinder block is made of aluminum, its deck height is 211.84 mm, and bore diameter is 81 mm. Inside this unit, an 89 mm stroke crankshaft and 137 mm long rods ... , 1. Valves should be adjusted cold; at a cylinder head temperature of less than 100 degrees F (38 degrees C) 2. Adjustment is the same for intake and exhaust valves. 3. After adjusting, retorque the crankshaft pulley bolt to 130 lb-ft. The specs are: Intake: 0.15-0.19mm (0.006-0.007in), Now turn the motor over 360 degrees (making sure you align the notches). Check exhaust valves 1&2 for cylinders 1&2 and intake 1&2 for cylinders 1&3. Cams should be in this position (again left side of the motor) Check your findings to the corresponding charts for intake and exhaust., An engine's camshafts must be set at their proper positions relative to the crankshaft in order to maximize horsepower. Pro Series Cam Gears for Honda's B16/ B17/ B18/ B20 and H23A engines enable serious tuners to optimize horsepower and torque by being able to adjust camshaft timing +/- 10 degrees, in one-degree increments, allowing them to tailor the power curve appropriately., Correct. Measure, record; pull and "read" shims, record; and then determine what you need. I'll make it a little easier yet: Exhaust #3 is fine at 0.20mm. ALL of the others, with the exception of exhaust #4, will need the next-size smaller shim from what's in there. Exhaust #4 will need to go THREE sizes down., With the end clearance either adjusted or was found to be OK, and all nuts at 25 foot-pounds, you are now ready to adjust the valve clearance. Except for the first few thousand miles, re-torquing is not necessary very often, certainly not at each 5000 mile valve adjustment check after the valves settle-in. If you are re-torquing the entire head ..., Rotate, clockwise (by hand) until the rocker arm just starts to move the exhaust valve open. Set the intake valve. Hold the pushrod between your fingers and spin it while tightening the adjustment nut on the rocker arm. Once you can't move the pushrod anymore, turn the nut an additional 1/2 to full turn., Integra b18b1 valve lash adjustment.. Ticking noise? Get it diagnosed it could be as simple as this. Reliable Car Care LLC · October 22, 2019 · ..., Use the 10mm socket for the two bolts. Remove the ignition coil cover, this is on top of the engine's valve cover. There are four bolts, the outer two secure the cover as well as the thing that all of the ignition coil connectors come out of. The middle two bolts hold on the cover as well as two of the ignition coils., A. atomicquad Discussion starter. 70 posts · Joined 2004. #1 · May 14, 2015. Hey everyone, My father in law and I were putting my rebuilt B18B1 back together, after my Integra broke a timing belt and bent a valve. After getting it back from the machine shop, we put it together, and noticed that it had an oil leak from the crankshaft seal., Learn how to perform valve lash adjustment for B18B engine with standard and specialty tools. See the valve clearance specs for intake and exhaust valves and the steps to follow for each cylinder., Rotate - Rotate the engine clockwise (as seen from above the engine) by turning the blade. Keep turning until the intake valve spring is fully compressed (valve open). This is the first stroke of the 4-stroke sequence. Set - Insert a blunt object into the plug hole against the piston., We had to adjust the valves on the intake side of the B18c1, we took the spark plugs out and looked everything over to make sure it's running good. This is a..., Ferrea Acura Integra GS (1990 - 2000) 1.8L (B18A1-B1) Intake, .5mm Oversize Competition Plus Engine ValvesFerrea Intake Valve 31.5mm +.5mm B18A1 B18B1 B20B Integra LSFerrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. ... ENGINE SPECIFICATIONS: B18A1 B18B1 B20B: STEM DIAMETER: 6.57: VALVE ..., tearing down a b18b1 engine, engine was rebuilt by someone els and caused al kinds of problems . bent a valve and now I get to fix it, Torque. I have seen many poly-lock nuts broken by over tightening the set screw. All you need to do is snug them up or no more than 15 lb/ft if you have the correct rocker studs. If you are using stock rocker studs, you may not be able to get the set screw to hold the lash setting., SKU HEVN-1004-01 $18.23 Call Supertech Integra LS B18A1 B18B1 28.5mm +0.5mm Exhaust Valve We manufacture our racing valves using only the highest quality materials available. We have spent countless hours studying these different materials as well as you ... These valves are black nitride coated, which is a hardening treatment that has been ..., 5.9L Cummins 6BT (12 valve) 5.9L Cummins 6BT Valve Lash Specs: 0.010" intake valve clearance, 0.020" exhaust valve clearance. Valve Lash Adjustment Intervals: Check and adjust valve lash every 24,000 miles or 24 months. Cummins Engine Barring Tool: OTC 7471A. Valve lash refers to the clearance, generally hundredths or thousandths of an …, We had to adjust the valves on the intake side of the B18c1, we took the spark plugs out and looked everything over to make sure it's running good. This is a...