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Old 10-30-2013, 03:49 AM   #1
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Default Annoying ticking sound!

Annoying ticking sound coming from your LS engine? Could be a broken exhaust bolt causing a leak at the cylinder head. In my experience it seems to be a common problem.


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Yup there is the problem, time to remove the manifold.


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At least the bolt broke at the head leaving something to grab onto and I don't need to drill it out.


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Got to use my cool stud extractor tool.


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There is the dirty raskell!


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The only reason I'm replacing the manifold instead of sending the old one to the machine shop to be resurfaced is this truck can't have any down time. Look it'* made in Canada ehh!


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New manifold gasket


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New manifold bolts, kind of annoying because they only come 5 in one bag and the manifold requires 6 bolts so either your going to reuse one bolt or have 4 leftover new bolts.


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New flange gasket left side only.


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New flange studs


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Note the manifold gasket is marked for proper instillation position.


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All better now! No more ticking!
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Old 10-30-2013, 05:46 AM   #2
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Are those aluminum heads?
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Old 10-30-2013, 05:50 AM   #3
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Quote:
Originally Posted by Mike1995 View Post
Are those aluminum heads?
Yeah they are Mike. All LS motors have aluminum heads except 99 and early 00 6.0 engines that came in a 2500 or 3500. A cast iron LS head is very rare.
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Old 10-30-2013, 05:53 AM   #4
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So I wonder if the cooling/heating characteristics of cast iron and aluminum have anything to do with the bolt heads popping off. Meaning, the head cools and contracts quicker than the iron manifolds.
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Old 10-30-2013, 06:03 AM   #5
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I'm sure it'* part of the problem. You would of thought the engenders would of added a domed washer to help with the manifold expansion. But like the old saying goes I didn't buy it, build it, or break it. I'm just here to fix it.
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