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Old 05-24-2013, 09:10 AM   #13
Ol' Ron
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Join Date: May 2010
Location: Chester Vt
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Default Re: '49 8BA Valve stem seals

Bruce
The stem seals worked just fine, however installing the valve guide assembly was a bi**h. I found that knurling the guide for a tight fit (.0005/.001') worked just as well and did that to all my engines. some new guides are very loose.
As for the guide its self, Walt is right. Once installed they fit very tight and the leakage would be very small if any. besides the early two piece guide didn't have a seal. I just put a thin film of RTV on the guide before I install it.
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