Protrusion, CR | Cummins Diesel Forum
2023年12月27日 · The piston protrusion specs I have and what you have posted are for 94 and later emissions controlled automotive apps, these engines have compression ratios ranging from 17.1:1 up to 17.5:1 My Cummins maintenance manual list industrial off road engines with compression ratios from 16.5:1 up to 18:1
Piston Protrusion Over Spec. What Head Gasket?
2023年2月13日 · I measured my piston protrusion over the wrist pin as the manual instructs and had a couple of pistons that are a bit out of spec coming in with a total protrusion of 0.022". The service manual says that min protrusion is 0.006" and max is 0.019" and if you are outside this range then you have a problem.
Piston protrusion specs,,,I'm so confused | Cummins Diesel Forum
2022年6月13日 · The pistons I'm using are already down a little on compression at 16.6 with .019 protrusion according to Mahle (the part number for the piston being used is highlighted yellow in the screenshot below). With having .029 piston protrusion I should be in the low 17's for compression ratio (about stock) and still have adequate piston to valve ...
Piston protrusion question | Cummins Diesel Forum
2017年2月1日 · piston protrusion will determine what head gasket you use. the information is in the factory service manual. It was several years ago i rebuilt mine so i do not remember if the manual gave any min or max values, just if it is above x amount of protrusion use the thick gasket, and below use the thin gasket.
Piston protrusion below specs | Cummins Diesel Forum
2020年4月12日 · With that protrusion and bowl size, you're probably looking at low 16s. As far as piston-to-valve clearance, you should at least take the required measurements and run them through Hamilton's calculator if you're not going to actually check piston-to-valve.
piston protrusion and valve face depth for hamilton cam
2014年9月20日 · hey, I am in the process of building my p pumped 24 valve and just have gotten my shortblock and cylinder head back from the machine shop and I was measuring piston protrusion and valve face depth to determine if the Hamilton 188/220 would have proper clearance and it looks like I may have some issues, the block and head were decked roughly …
BBi Injector protrusion? | Cummins Diesel Forum
2017年12月15日 · OK I think to explain that protrusion difference it is the best to draw you a picture instead of trying to explain it with words. So here is a comparison I just made for you :smile2: On the left you can see the OEM VCO nozzle and the right one would be the SAC Stage 2 nozzle. The green line marks the origin of the nozzle spray.
Head Gasket kit-which gasket is thicker? | Cummins Diesel Forum
2011年3月5日 · Thick is for .0030 and up piston protrusion but any thing from .0026 and up id go thick just to be on the safe side. Bus that's just personal opinion and preferance 2004.5 3500 4x4 NV5600, PDR Cam, ARP 425s, industrial injection 60 horse injectors, Raptor 100 fuel pump, DIY 2micron fuel filter system with big line upgrade, HE351 over S475,more ...
Piston protrusion | Cummins Diesel Forum
2019年5月29日 · I am rebuilding an 04 5.9l. The block had to be bored .040” over. So I purchased new pistons, pins, rings, bearings, and rod bushings. The rods and crank were reused and polished only. Upon assembling the short block I am getting .008” of difference between my lowest piston and highest, when measuring protrusion at tdc.
Injector protrusion | Cummins Diesel Forum
2012年11月21日 · So I'm doing a head gasket, had to get the head decked about .007. Measured my valve recession, had to grind a few. Without thinking i ordered a standard head gasket. Now the head is on and torqued and i remembered injector protrusion. Already found cummins doesn't sell thicker injector washers. Am i gonna be all right?