6.7 cummins rear main seal housing torque spec

With TWO people GENTLY lay the crank into the mains EVENLY and apply more lube on the journals. Liberal use of assembly lube of your choice is to be placed on bearing faces and smeared around to get it on the whole bearing.īlow out all the passages of the oil galleys in the crank and blow the crank journals clean. Inspect to make sure ALL jets are in place and all bearings are clean with a spray of air. Thrust bearing goes on #6 main journal seat. Repeat for all mains and ensure proper orientation. Then with a air hose blow the seats of the upper main bearings clean and the back of the upper main bearing then place down immediately to ensure no dust gets between the surfaces. Install 6 oil cooler jets with a punch gently tapped into place to hold them. Use ring installer and open ring enough to place into groove without scraping piston.Īlso prep the crank and ensure it is PERFECTLY clean ZERO debris on journals. scraper ring FOLLOW PRODUCT ORIENTATION there will be a marking or dot showing UP. oil ring (3 piece) lower flat ring then oil waffle ring then upper flat ring (stagger gap 120 deg)Ģ. The rings go in order of installation (bottom to top of piston)ġ. I didnt get pics of the assembly but its easy.Īssemble each piston fully one at a time with rod, wrist pins/c-clips, rings. Hammer it down in small incrementsĭrive the seal in until the tool bottoms out evenly along the rim.

Leave the install sleaves in them, if you have to remove them pull them out and to replace them just kinda fold them onto itself then put it inside the seal to install.ĭriving the seal in from the rear of the seal housing. The front main is a PITA but once you get it driven as far as the tool will let you it will hold.

the rear is easier and the open end goes towards front. Drive your seals in with the tools provided in the cummins kits. Hang in there as i am working on building this Article.įirstly, have all your parts cleaned and prepped, identified and ready to fully assemble.

6.7 cummins rear main seal housing torque spec