There's no majic to it.
Press the bad one out.
Chill the new ones in your freezer over nite and then hit them with some freeze spray just before you press them in so they shrink up in OD.
Just note that what you press them in with ( the needed tool ) that centers in the guide while it rest on top of the guide
It's critical that this driver does not contact too cloose to the ID of the valve guide hole especially if the guide is not iron because driving the guide in will pinch down the top of the guide somewhat.
With any guide replacement job, even if guide livers are use in the old guides at a minimum a touch up valve job will be needed especially if the whole guide has been replaced.
In such a case the guide may have moved .002"to .003" which you then times by 3.14 and you then your main valve seat could be off / shifted by .009"
Not a good thing!
|