cylinder head replacement question.

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Nov 16, 2010 | 12:07 PM

hdvespa

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cylinder head replacement question.

In changing the heads, Do I need to also remove the cylinders and replace the base gaskets?

Nov 16, 2010 | 12:22 PM

Dr.Hess

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From: NW AR

It Depends. Do you want to? Why are you replacing the heads? Just a performance upgrade? If you're careful, you can just R&R the head without disturbing the base gasket, but there is still a risk that it will leak afterwards. "The right way" is to put new rings in and hone the cylinders if you take them off.

Nov 16, 2010 | 12:41 PM

hdvespa

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Dr Hess,
I have an issue with the rear cylinder, a rear mounting bolt boss area for the rocker broke, we tried jb welding it but still have an issue with oil leak between head and rocker. I wanted to just replace the rear head.

Nov 16, 2010 | 12:44 PM

Mike T

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Joined: Aug 2010

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From: Union,Ms

Quote:

Originally Posted by hdvespa

.Go back with Cometic gaskets.

Nov 16, 2010 | 05:05 PM

RidemyEVO

Stellar HDF Member

Joined: Apr 2009

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From: Northern Ontario

If your going to through the steps to removing the heads you might as well pull the cylinders and deglaze the cylinders ( at very least ) and replace the base and head gaskets.