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Head gasket job Questions

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  #71  
Old 04-21-2018, 03:27 PM
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Man, its clean in there!
 
  #72  
Old 04-21-2018, 03:51 PM
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Two of the center Headbolts were either not torqued, or had come loose, very loose. There is discoloration where the coolant was escaping, and you can see on the gasket how badly the oil had eroded it. I am glad I caught it.

What a shame that it got messed up.

I am going to measure all of the Ports on the head and Manifolds. I did a quick check of the exhaust manifolds, and the measurement I got was 15.1 with the Cylinder Head exhaust port at 17.1. That's plain stupid.
 
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Old 04-21-2018, 04:14 PM
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Yeah, the mis-matching is fairly bad on these. I thought about doing something about it but i decided to pass and save all that work for when the time comes to do a full engine rebuild.

There is a 4.6 on CL though for $350.. Hmmmmm
 
  #74  
Old 04-21-2018, 04:16 PM
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Originally Posted by CollieRover
Two of the center Headbolts were either not torqued, or had come loose, very loose. There is discoloration where the coolant was escaping, and you can see on the gasket how badly the oil had eroded it.
That can also be a sign that the heads are slightly warped. Deck the heads at a competent machine shop!
 
  #75  
Old 04-21-2018, 04:45 PM
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Originally Posted by No Doubt
That can also be a sign that the heads are slightly warped. Deck the heads at a competent machine shop!
that’s a very good point. I am taking them to a higher end shop. It’s really not much more expensive, and they know what they are about, professional and are going to dipnand paint my other parts as well.
 
  #76  
Old 04-21-2018, 04:49 PM
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Originally Posted by CollieRover


that’s a very good point. I am taking them to a higher end shop. It’s really not much more expensive, and they know what they are about, professional and are going to dipnand paint my other parts as well.
Most of the time it will just be the heads, but since you have the heads off of the block to have them decked, be sure to check the flatness of your block's surface under the heads, too.

Low chance, but you could get block warpage there, too.
 
  #77  
Old 04-21-2018, 04:54 PM
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Originally Posted by No Doubt
Most of the time it will just be the heads, but since you have the heads off of the block to have them decked, be sure to check the flatness of your block's surface under the heads, too.

Low chance, but you could get block warpage there, too.
They are from Turner, so i have a ton of confidence in the block, but if I can rent a tool I will do it.
 
  #78  
Old 04-21-2018, 04:58 PM
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Originally Posted by CollieRover


They are from Turner, so i have a ton of confidence in the block, but if I can rent a tool I will do it.
It's almost not worth doing. Low chance of block warpage.
 
  #79  
Old 04-22-2018, 10:48 AM
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The shop also used washers on the intake manifold bolts, which I don't believe are supposed to be there, the two Intake Manifold Gasket clamps are not the genuine bolts, and I am guessing that is why they loosened so dramatically.

Anyone else have washers on the intake manifold bolts? I mean, I thought that the thought process for flanged bolts was to avoid washers.
 
  #80  
Old 04-22-2018, 03:44 PM
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I believe all of the lower intake bolts to heads have washers.
 
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