???LT4 heads???
Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,276
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From: Ft. Worth Texas
St. Jude Donor '11
Seeping problem???LT4 heads???
Can someone tell me which bolt holes in the heads are wet holes?? I am having a seeping problem with the new motor. And also, can I just pull one head bolt at a time, add sealer and retorque or do I have to pull the heads???
thanks,
jeff
thanks,
jeff
Last edited by GS345; Feb 3, 2005 at 06:45 PM. Reason: more info
Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,276
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From: Ft. Worth Texas
St. Jude Donor '11
Originally Posted by bogus
what is seeping? oil or coolant?
If it's oil, you do have a problem, cause the oil shouldn't do that.
I would be more concerned that the heads or block are not square.
If it's oil, you do have a problem, cause the oil shouldn't do that.
I would be more concerned that the heads or block are not square.
???
jeff
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
hm. that's not good.
I would not be inclined to remove a bolt and retorque. Something about that just sounds scary.
I think all the lower bolts are exposed to the cooling journals.
Let's see what the engine builder types say. I would be curious, too.
I would not be inclined to remove a bolt and retorque. Something about that just sounds scary.
I think all the lower bolts are exposed to the cooling journals.
Let's see what the engine builder types say. I would be curious, too.
Safety Car
Joined: Feb 2002
Posts: 4,212
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From: Sun City West Az
Speaking for the LT1, all the head bolts are 'wet'. I can't imagine the General would make a big change in that area. If those are torque to yield bolts, I'd give it some thought about their reuse. This may not be the time to cheapen the job.
Last edited by ittlfly; Feb 3, 2005 at 07:28 PM.
Thread Starter
Drifting
Joined: Nov 2000
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From: Ft. Worth Texas
St. Jude Donor '11
Originally Posted by ittlfly
Speaking for the LT1, all the head bolts are 'wet'. I can't imagine the General would make a big change in that area. If those are torque to yield bolts, I'd give it some thought about their reuse. This may not be the time to cheapen the job.
jeff
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
They are not all wet, but most of them are. I just use the ARP sealer on all of them so they're consistent. At this point, you have nothing to lose, it sounds like. With the engine stone cold, remove them one at a time, in sequence, clean and seal and torque back per ARP's instructions. If you do end up pulling the heads, you can NEVER reuse head gaskets.
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Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,276
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From: Ft. Worth Texas
St. Jude Donor '11
Originally Posted by Corvette Kid NC
They are not all wet, but most of them are. I just use the ARP sealer on all of them so they're consistent. At this point, you have nothing to lose, it sounds like. With the engine stone cold, remove them one at a time, in sequence, clean and seal and torque back per ARP's instructions.
Thank you!!! that is what I was wanting(and needing) to hear
jeff
Le Mans Master
Joined: Feb 2002
Posts: 5,970
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From: San Marcos Texas
I say pull them one at a time and use a thread sealer on each of them. Also make sure to drain the coolant from the car before you start pulling bolts and use an air gun to blow the water off the threads of the bolts and holes. I prefer Napa formagasket sealer for sealing headbolts and anyother bolt. After you are done, let it sit for 24hrs before you fill it with coolant again.
Le Mans Master
Joined: Jan 2003
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From: Portland Oregon
Originally Posted by GS345
Also, can I reuse the head gaskets (fel-pro 1074) the motor only has 40 miles on it
jeff
jeff
I would not chance reusing the head gaskets. Especially if you are removing the head. But if you are not removing the heads and you are only removing one bolt at a time to retorque and to apply thread sealer I would try it. If the heads were torqued properly during assembly and if the only problem was because of the lack of thread sealant I would be inclined to try it. But if the leak was a direct result of an improperly torqued cylinde head, I would not reuse the gasket.
Thread Starter
Drifting
Joined: Nov 2000
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From: Ft. Worth Texas
St. Jude Donor '11
Originally Posted by tjwong
It sounds like whoever put your engine together didn't use any thread sealant on the head bolt threads during assembly.
Thread Starter
Drifting
Joined: Nov 2000
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From: Ft. Worth Texas
St. Jude Donor '11
late night update
Well....being so paronoid, I started the job tonight of taking it apart and decided to pull the heads back off just to be sure. I would hate to one bolt at a time it and STILL have a problem. So a few more hours of work and a few more gaskets and all will be better
jeff
jeff