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Porscheaddiction
Joined: 03 Nov 2002
Posts: 431
Location: Cornwall, Ont, Canada
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 Posted: Wed Jun 29, 2005 12:36 am Post subject: Valve Guide Removal |
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Bit of assistance required...Whats the best/proper way to get the valve guides out of the head?
Machine shop says they may have to be cut out?? (I cant see porsche doing something like that to be done)
Thanks Chris.
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1981 924 NA (Restoring mode)
1984 928S (Enjoying the driving season) |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Wed Jun 29, 2005 6:16 am Post subject: |
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The factory procedure is to use a cutter, then press out the rest.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Wed Jun 29, 2005 3:55 pm Post subject: |
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Yep, it's true. I'm having engine mods done on my 928, and having new valve guides put in. Same procedure for the 924, 931, 944, 951 and 928 heads. You don't want to just press them out...if the top of the guide gets flattened or compressed during the pressing out process, you won't be able to press it all the way through, and then you're really screwed. The part of the guide that isn't flush with the head surface has to be ground off, and then the rest of it is pressed out.
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erstwhile owner of just about every 924 variant ever made |
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924 FAQ (Technical)
