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re: OB mechanics, did I lose an injector? Update Dead #7 cylinder
Posted on 10/6/22 at 9:03 pm to bigbuckdj
Posted on 10/6/22 at 9:03 pm to bigbuckdj
The compression on all the other cylinders were fine. I need to see if they checked the lifter, could the valve be stuck open causing no compression on the cylinder? And it just be a lifter issue? I may be completely wrong.
3
Posted on 10/6/22 at 9:18 pm to GREENHEAD22
It could be that but I’d hope the mechanic would know if it was the lifter or not by the sound or by pulling the valve covers. What is the mechanic saying he thinks caused it? Was it low compression or no compression?
Posted on 10/6/22 at 9:41 pm to GREENHEAD22
quote:
could the valve be stuck open causing no compression on the cylinder
Not likely, if it had stuck open then the piston would have hit it on the next stroke and you'd have tremendous back pressure. I'm talking enough to blow the dipstick out and in the yard if your hood is up due to a hole in the piston.
Posted on 10/7/22 at 2:11 am to GREENHEAD22
Very likely a valve train issue. Lifter, rocker, valve spring, something related to that displacement on demand crap.
If the piston or rings were not sealing and you were losing compression that way, I bet the engine would sound like shaking a can of rocks.
If the piston or rings were not sealing and you were losing compression that way, I bet the engine would sound like shaking a can of rocks.
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