valve guide head interface clearance, How much plus Options

[Joe Ricard]

So the Machinist says that the new intake valve is .039 larger than the hole it is supposed to go into. What is the size +.000 to put the guide in. 2.0L head. And I guess I have the wrong Exhaust. Need 15mm guide vice 13mm

Gosh this is fun (IMG:style_emoticons/default/rolleyes.gif)

[ArtechnikA]

Art, I have no idea what you said.
In simple terms how much do I need to take off the outside diameter of the valve guide to achieve the correct fit with respect to the bore in the head.

originally, you said

" the new intake valve is .039 larger than the hole it is supposed to go into. "

which i took to mean the valve stem is too big to fit the installed guide. (valve is larger than its hole - i donno how else to interpret that ...)

i think you're now asking for the size difference of the OD of the UNinstalled guide to the ID of the guide hole in the head to achieve the proper shrink/press fit.

i have no idea, and i doubt the Spec Book or Haynes would be reliable on this matter, since techniques and valve guide materials have changed so much in the intervening 30 years.

hopefully someone with a track record of successful valve guide replacement wil be able to chime in; this is an area of head work i've never even attempted.

who's Art ?