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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
Posts: 3,893
Originally Posted by Rasta Monsta View Post
There's a bolt-on Tial?
Yep, F46 is the model most used for 930's. Great product.

A few years back someone posted the results of rebuilding a stock WG. Ended up having a machine shop fabricate a new valve guide out of some appropriate material. That's an option, but after all the materials and shop labor you may be better off with a new Tial.

UPDATE: Did a little searching and came up with the following, through EBS Racing:


"If you want to stay with the factory WG Call Don at Engine builders supply. He can get you what you need as far as parts go, (I just did one about 340$ in parts) its not cheap but I replaced the valve, guide, seat and diaphragm. At some time in the past the valve snapped off at the head, and the owner drove it for a while like that. You should be able to get away with just replacing the diapragm, if everything else looks good. There's not much to them".
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.

Last edited by mark houghton; 09-28-2010 at 01:17 PM..
Old 09-28-2010, 12:45 PM
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