Low compression???
Thread Starter
Racer
Joined: Jun 2005
Posts: 363
Likes: 0
From: Jacksonville, Fl
Low compression???
I just finished puting the engine back together for THE SECOND time.
The first time there was a coolant leak, I changed out the intake manifold gaskets and used the tightening sequence in the Helms instead of the Haynes and no more coolant problems....great
But now The engine just sounds like crap!!! and when I press the gas peddle I have to push it further than normal to get it to move. Most of the sound is coming from the passenger side of the engine.
Im really at a loss of ideas, does anybody have any clue as to what this may be????
Would bad timing do this??? Or and improperly tightened head???
The first time there was a coolant leak, I changed out the intake manifold gaskets and used the tightening sequence in the Helms instead of the Haynes and no more coolant problems....great
But now The engine just sounds like crap!!! and when I press the gas peddle I have to push it further than normal to get it to move. Most of the sound is coming from the passenger side of the engine.
Im really at a loss of ideas, does anybody have any clue as to what this may be????
Would bad timing do this??? Or and improperly tightened head???
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Putting the engine back together.....
Are you referring to the entire engine or did you just replace the intake manifold gaskets? If it was just the intake I would bet money on a vacuum leak.
Are you referring to the entire engine or did you just replace the intake manifold gaskets? If it was just the intake I would bet money on a vacuum leak.
Thread Starter
Racer
Joined: Jun 2005
Posts: 363
Likes: 0
From: Jacksonville, Fl
Originally Posted by cuisinartvette
Putting the engine back together.....
Are you referring to the entire engine or did you just replace the intake manifold gaskets? If it was just the intake I would bet money on a vacuum leak.
Are you referring to the entire engine or did you just replace the intake manifold gaskets? If it was just the intake I would bet money on a vacuum leak.
WHat do you mean by vacuum leak the entire intake is not sealed?
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
He's referring to your valve train, intake and exhaust valve lash setting.
If you removed your heads-and reinstalled them-then you need to check and set the valve lash.
Best thing for you to do is go read 87 rag post, about 90-95 responses. His turned out to be a vacumn leak.
If you removed your heads-and reinstalled them-then you need to check and set the valve lash.
Best thing for you to do is go read 87 rag post, about 90-95 responses. His turned out to be a vacumn leak.
Last edited by rick lambert; Apr 17, 2006 at 12:52 PM.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
A vacuum leak could occur in the runner gasket area, or if the base intake gaskets shifted while being assembled. What kind of noise are you hearing from the pass. side?
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Thread Starter
Racer
Joined: Jun 2005
Posts: 363
Likes: 0
From: Jacksonville, Fl
Originally Posted by cuisinartvette
A vacuum leak could occur in the runner gasket area, or if the base intake gaskets shifted while being assembled. What kind of noise are you hearing from the pass. side?
Note: There was absolutely nothing wrong with the engine (mechanically) before I took it apart the first time. The reason I took it apart was to replace the gaskets due to some serious oil leaking. But there were no knocking or rocking, it sounded and ran good. Im starting to wish I left the oil leak.
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
When you put it back together the first time did you reset the valve lash? if no, you need to. You may be hearing a lifter-do to valve lash, and it will make the car run extremely crappy if not set right.
