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Trackrash Trackrash is offline
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Join Date: May 2007
Location: Sebastopol, the land of wine and redwoods in The Republic of California.
Posts: 5,568
Well, FWIW, I ordered standard guides, since my guide bores were in spec. Luckily I ordered a couple extra.

Turned out that half the guides I received were over size by a couple of thou. Long story short, I had to machine several of them down to the correct fit. Some guys will machine every guide to a perfect fit.

If you have a lathe, it is really no big deal to machine them down.

BTW, the original Porsche manuals say to use tallow for the install lube. Sun makes a valve guide lube, which is tallow based. I cooked up some bacon and used the grease, which is basically tallow.

If you read the Carrera manual, it says to use talcum.
'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
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Old 02-22-2019, 02:57 PM
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