View Full Version : head knock???
Hansen528
05-15-2009, 03:55 AM
ok so i put my motor tgether and hav had it run 4 about 40min and its been running great. al of a sudden theres a knocking noise in the valve cover or head area. just was wondering if anyone else experience this. i was thinking either an oil squirter is plugged or the valves are hittn the piston.
dsm430
05-15-2009, 07:32 AM
ok so i put my motor tgether and hav had it run 4 about 40min and its been running great. al of a sudden theres a knocking noise in the valve cover or head area. just was wondering if anyone else experience this. i was thinking either an oil squirter is plugged or the valves are hittn the piston.
you mean a hydrolic lifter? and i hope not !!!! do you have oil pressure(did you when you first fired it up), if it was a rebuilt motor you should prime it before you fire it!
again buy mine!!!!!!!
good luck!
Hansen528
05-15-2009, 09:54 AM
how do i prime the system?
You could try driving it in a low gear at a higher rpm to force higher oil pressure through it. I've done that to a couple stubborn cars. But make sure it is indeed a lifter.
dsm430
05-15-2009, 10:04 AM
how do i prime the system?
is it a rebuild?
dont drive if you dont know your oil pressure!
is it a knock or a tick????? you could take valve cover off!
you prime a engine if it was rebuilt, to get oil to the crank(before you start it)
otherwise you may tare bearings up.
Hansen528
05-15-2009, 12:05 PM
yes it was a rebuild. its more of a tick. and i cant drive it tires and rims r on bakordr. it ran 4 40 min tho b4 it startd doin it. sounds and feels like its undr valve covr.
slickers111
07-14-2009, 12:02 AM
sounds and feels like its undr valve covr.
I think you may have your answer right there.
Could be a Valve hitting piston, Bad spring, bent valve....
Try running a thick oil. Some times that gets rid of the Tick.
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