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08-01-2019, 10:41 AM | #1 |
Senior Member
Join Date: May 2010
Location: N.W. Iowa
Posts: 306
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Removing cylinder head on 8BA
Should I spray the bolts a few days ahead of the removal with penetrating
oil? If it will ease the removal I will do this........ |
08-01-2019, 10:59 AM | #2 |
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Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,330
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Re: Removing cylinder head on 8BA
I would do it if I had the time. Also, I would use the liquid instead of spray; it's cheaper and easier to apply. As an alternative, you could try a heat source and candle wax. Lots of guys swear by it
The bolts in these are not the problem the head studs in earlier engines are, but anything to help. |
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08-01-2019, 11:30 AM | #3 |
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Join Date: May 2010
Location: Oshkosh, Wi
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Re: Removing cylinder head on 8BA
Penetrating oil is useless on head bolts. Doesn't really work on studs either. I've soaked starts for weeks and never found it do a things. When you get the stud out, the threads are dry as can be.
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08-01-2019, 02:32 PM | #4 |
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Join Date: May 2010
Location: Northern Illinois
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Re: Removing cylinder head on 8BA
Jim, did you do a compression test? What did it show? Good luck!
Ken
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08-01-2019, 08:04 PM | #5 |
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Join Date: Oct 2015
Location: Bonita, CA
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Re: Removing cylinder head on 8BA
Back the bolts off about 3 turns, leave the plugs in and crank the starter. Heads will pop loose. Forget penetrating oil, won't help.
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08-02-2019, 08:05 AM | #6 |
Senior Member
Join Date: May 2010
Location: N.W. Iowa
Posts: 306
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Re: Removing cylinder head on 8BA
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08-02-2019, 11:32 AM | #7 |
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Join Date: May 2010
Location: Coral Springs FL
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Re: Removing cylinder head on 8BA
If you do reuse the head bolts, be very sensitive to the "feel of the bolt" as you torque it down. If you feel "softness" in the bolt, the bolt is stretching. Carefully back it out. Had it happen once. Some folks say you shouldn't reuse head bolts but OEM bolts are not available.
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08-02-2019, 01:10 PM | #8 |
Senior Member
Join Date: May 2010
Location: N.W. Iowa
Posts: 306
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Re: Removing cylinder head on 8BA
I ordered new bolts from Van Pelt. They should be OK
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08-02-2019, 10:35 PM | #9 |
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Join Date: May 2010
Location: Chester Vt
Posts: 8,873
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Re: Removing cylinder head on 8BA
I always pull them alittle tight, first. Just to see theif they move. I re use them and torque them to 45..50 lba for 3 heat cycles on all heads. Never had a problem.
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08-02-2019, 10:43 PM | #10 |
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Join Date: Jan 2011
Posts: 342
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Re: Removing cylinder head on 8BA
A few years ago a friend told me when attempting to loosen a rusted/old/stuck bolt or nut to try to tighten it just enough to move it before attempting to loosen--I think that's what Ol' Ron means in his post. It works almost ever time. Heat with the blue wrench usually helps, but on head bolts probably not so much. Good luck.
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