Pin holes in the head sealing surface..., Can I run as-is, or should they be welded up? |
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Pin holes in the head sealing surface..., Can I run as-is, or should they be welded up? |
jhadler |
May 15 2009, 11:21 AM
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#1
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Long term tinkerer... Group: Members Posts: 1,879 Joined: 7-April 03 From: Lyons, CO Member No.: 529 |
Hey all,
The motor is going back together, and upon close inspection of the heads, there are some small pinholes along the sealing surface of the head. I'd like to drop the head gasket and lap the cylinder to the head, but will these holes be a problem? Based on the measurements, the pinholes will be 0.016" outside of the ID of the jug, and as such, covered by the jug. But is that enough? Can I run this as-is? Lap the jugs to the heads, and run sans gasket? Should I run I gasket? Or should I have the holes welded up and re-flycut the heads? There's all of about 40 minutes run time on these heads right now. Thoughts? Experience? Thanks! -Josh2 |
yeahmag |
Jun 30 2009, 07:07 PM
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#2
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Advanced Member Group: Members Posts: 2,435 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California |
Gaskets on the barrel side are for adjusting CR. You need to do your math and figure out where you are at vs. your target CR.
Copper gaskets are run by some between the barrel and the head. I've never done it, so can't say... |
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