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993 inlet valve guide sizing

JACKNOB

By JACKNOB
in 993, 993 TT Series

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JACKNOB Member

JACKNOB

Posted
Posted

Hello gents,

 

Can someone decipher the following two sentences from the 993 Shop Manual:

 

993 shop manual:

 

"4. Bore inner valve guide dia. to a dimension of "g" = 8.00 to 8.015 mm using a broach or precision boring equipment. In an emergency, the valve guides may also be machined with a special reamer."

 

Please read the two lines carefully. I asked this question on another p-car forum and the guys were totally confused in their reply posts. I do this work for a living for about 45+ years. I need one of these 993 (8mm) guide broach systems now.

 

I will go into detail of why this broach system is superior for guide bore sizing if I get some reply posts of interest.

 

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