valve prob.

Old 03-13-2008, 09:44 PM
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bbc28racing
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Default valve prob.

i have a prob. with frozen lifters.i'm not sure if these froze but the last two sets have.i went to practice tonight and it blowed out the oil stick,which happened last year and i kept racing so it burt a hole in the piston last year,and the rocker ams arm a little loose[same problem as last post]everything is new in motor.it also kills plugs.i think somthing is wrong in the heads,anyone have a idea.thanks
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Old 03-14-2008, 12:58 AM
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cepx111
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Man do you have problems..
I would say that the reason your oil dipstick came out is excessive blow by, which is rings, pistons and or cylinder wall issues.
You stated that last year you burnt a piston, did you have the blocked bored and new pistons put back in? And how would your dipstick coming out of the block cause you to burn a hole in a piston? Are you spraying the piss out of this motor with nitrous? Burnt pistons are indication something is bad wrong in the combustion chamber, I.E> severe detonation or a sudden lean condition.
Also I dont think neither of your problems are with your heads.
I assume your running a hydralic cam, how much did you preload the lifter? And what kinda rpms are you reving the engine too? What about your valve spring pressure? How much compression are you running, what type of fuel are you using? Lets star over and get back to the bascis here. There allot of unaswered questions here that we need to know before anybody can effectivly help you with these probelms.
Goodluck, Charles
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Old 03-14-2008, 08:22 AM
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bjuice
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Forum: Engine Tech Posted: Thu Mar 06, 2008 12:38 pm Subject: bad cam
Not to sound like a a-hole by no means..
but my suggestion it take the bulltet out and have someone look at it that knows what they are doing..

no offense toward you by no means
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Old 03-14-2008, 09:00 AM
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Tod74
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Originally Posted by bjuice
Forum: Engine Tech Posted: Thu Mar 06, 2008 12:38 pm Subject: bad cam
Not to sound like a a-hole by no means..
but my suggestion it take the bulltet out and have someone look at it that knows what they are doing..

no offense toward you by no means
I agree...and I can tell you he isn't trying to cut you down with that statement. He is a good dude who is always willing to help...But if you're having that much trouble there is no shame in getting some help. That's how ya learn.

P.S. I once destroyed an anvil with a rubber hammer, so I know what it's like to have problems.
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Old 03-14-2008, 03:18 PM
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bbc28racing
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ok,my pcv valve had broke so that was why i blowed out the dipstick.and my rocker arms backed off,so that was the popping the locknuts were bad.so the valves wasn't opening and it was detonating.thanks for all the help
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Old 03-15-2008, 03:21 PM
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Tod74
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what kind of racing are you doing and what kind of car is this in?
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Old 03-15-2008, 03:30 PM
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bbc28racing
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circle track and it's a 80 monte carlo
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Old 03-16-2008, 11:02 AM
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Tod74
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Originally Posted by bbc28racing
circle track and it's a 80 monte carlo
Are you running like a "bomber" or" street stock"
type class? dirt? I drag race but have family that run the circle track dirt stock cars. I could never put up with someone ramming into me...lol I do enough damage by myself.
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Old 03-16-2008, 09:07 PM
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bbc28racing
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yeah it gets a little bumpy,and i run outlaw
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