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 head bolt question
#681333
12/31/05 08:55 PM
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Joined: Feb 2003
Posts: 107
OP
Wheeler
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In the middle of tearing down my 22r for a rebuild and noticed that several of the head bolts have a significant buildup of carbon on them over the entire length, including the threads. This made these certain bolts alot harder to remove also. Where and how do you think this buildup is occuring?
Pretty much everything (pistons/head/valves) is covered in carbon/burnt oil buildup, but I found it odd to also be on a couple of the head bolts and not the rest. I can get some pics if that would help.
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 Re: head bolt question
[Re: poolville02]
#681334
12/31/05 09:11 PM
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Joined: Aug 2002
Posts: 2,101
Body Damage is Cool
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the buildup is from oil coking up in the holes -- from the factory the bolts are dipped in oil to keep from galling the threads.
the hardest bolts to remove are usually the 2 that are between the exhaust ports. i snapped one off on the last engine i did, craftsman bolt-outs work wonders!
'79 sport 4x4 longbed <img src="/forums/images/graemlins/smile.gif" alt="" />
20/22R hybrid with EB's OS valves, 268c cam, offy intake, weber 32/36, thorley header, 5 speed swap, 34" LTBs, downey 3" springs, marlin hysteer, 4.88s and locked
'91 4x4 shortbed
22R-E, W56, the dd!
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Re: head bolt question
[Re: poolville02]
#681335
12/31/05 09:51 PM
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Joined: Feb 2003
Posts: 107
OP
Wheeler
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that makes sense, so theres nothing to worry about there? allright, so after the rebuild, when im ready to put the head back on with new head bolts, I should oil them prior to installing correct?
85 Toyota Pickup 4x4 22r 4in lift 32in BFGs
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Re: head bolt question
[Re: poolville02]
#681336
12/31/05 10:48 PM
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Joined: Aug 2002
Posts: 2,101
Body Damage is Cool
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i'd chase the threads first -- one of your old head bolts with a notch cut in the threads makes a great chaser tap. at the very least, oil your new bolts. engnbldr's come with a nice copper based anti-sieze lube with them, i used that on my 22R-E. other than that, i like a good moly based assembly lube, especially the kind made by ARP <img src="/forums/images/graemlins/kewl.gif" alt="" />
'79 sport 4x4 longbed <img src="/forums/images/graemlins/smile.gif" alt="" />
20/22R hybrid with EB's OS valves, 268c cam, offy intake, weber 32/36, thorley header, 5 speed swap, 34" LTBs, downey 3" springs, marlin hysteer, 4.88s and locked
'91 4x4 shortbed
22R-E, W56, the dd!
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