 Head lapping |
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| revhi109 |
 Apr 10 2014, 11:51 AM
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#1
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Member  Group: Members Posts: 73 Joined: 20-April 12 From: Minnesota Member No.: 14,404 Region Association: None  |
So I finally got my heads back from getting resurfaced and a few other things. It is warm enough now to start attempting to install the heads. I know there are mixed feelings about using head gaskets or not, but I bought some anyway because that is why I'm in this situation to begin with. If I am going to install these head gaskets, do I still need to lap the cylinders to the heads?
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| Dave_Darling |
Apr 10 2014, 12:34 PM
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#2
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Nope. Lapping is to get the two surfaces to conform to each other. If you put a gasket in between, those two surfaces won't touch each other so the lapping is wasted.
--DD |
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| r_towle |
Apr 10 2014, 12:54 PM
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#3
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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While I would agree in principle with what DD just stated, without seeing your specific heads and cylinders, I would not suggest that you do not lap them.
Its a belt and suspenders thing... Given your previous experience, maybe the extra hour or two would be a good investment of your time. rich |
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| revhi109 |
Apr 10 2014, 01:34 PM
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#4
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Member Group: Members Posts: 73 Joined: 20-April 12 From: Minnesota Member No.: 14,404 Region Association: None |
Yeah I wasnt sure I the machine groves would need to be smoothed out a bit. I also have no idea the the tops of the cylinders are flat or not. Just a thought
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| r_towle |
Apr 10 2014, 02:58 PM
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#5
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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belt and suspenders....
Do it. rich |
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