freightliner,, with NTC 300 bigcam inframe issues

jeudi 24 décembre 2015

just performed inframe on truck, had all 3 heads reworked, freshed up bottom end, put liners in,,, joked with my helper bout hey theres a note in the liner box that says,, DONT USE OIL OIL GLUE OR GREASE WHEN INTALLING, TOO USE COOKING OIL, needless to say I had a lite grease that I normaly use in doing inframes, I litely greased the liners an installed the old shims that go under the liners then eased the liners into the block, I noticed they went in pretty easy with hardly any tapping with a wood block an rubber mallet. I basicly did the inframe with out any issues, an when I fill the radiator up with water I noticed I had water running outta the exhaust ports,,, I was frustrated as heck by this, needless to say I pulled the heads back off an found that the pistons were full of water, with heads off I filled the block back up with water an started seeing water creep up out from around the liners, so therefore water was comeing around liner an but head gasket somehow an into cylinder. I also noticed that the top of the liner will wiggle just a lil side to side an water leaks out, (few yrs ago a ole timer told me to out a lil glue around the top of the cummins liners when pressing them in an clean off the mess off the top so basicly that's what ive allways done till now. I didn't do these liners cause the paper work said not too, ( so now im wandering is this what the ole timer was talking about when he trust me an just put lil glue on it). the ole liners all had the thin shim under them, I kept the shim for each liner in its correct hole it came out off, ive allways just used ole shims onto the new liners, I know in my installation paper work it says .04 to .07 high for each liner. but the question is how does the top of the liner seal off the water if it don't have a upper seal, does the liner an shim when pressed into place seal off tight enuff to seal it off, when I looked at head gaskets the under sides looked as if they were pressed against the top of liners an looked as if left the indention from being compressed. also another question, when checking the liner height, what do you use as the top of liners measureing point, do you use the very top of the liner were the fireing ring is or do ya use the outside of the liner were it meet the block.


freightliner,, with NTC 300 bigcam inframe issues

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