Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


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More valve guide questions
#403593 02/15/18 10:26 PM
Joined: Apr 2016
Posts: 108
Northwest Louisiana
TomLewis Offline OP
Shade Tree Mechanic
OP Offline
TomLewis
Shade Tree Mechanic
Joined: Apr 2016
Posts: 108
Northwest Louisiana
In anticipation of receiving my new valve guides from Bob Marx, I started to press out the old guides. I'm using a 10-ton press I built many years ago. A couple of guides came out clean, but a couple were very stubborn and when they did come out, the guides and bores in the head showed evidence of severe galling. I've never had this happen before. Is this something common in early '30's heads? I've stopped doing any more until I have some info.

Thanks. Tom
Filling Station - Chevrolet & GMC Reproduction Parts


Filling Station
Re: More valve guide questions
TomLewis #403596 02/16/18 12:01 AM
Joined: Jan 2002
Posts: 30,701
Likes: 141
West Allis,Wi.
Chev Nut Offline
ChatMaster - 25,000
Offline
Chev Nut
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701
Likes: 141
West Allis,Wi.
My suggestion would be to heat up the iron head near the guides. This will cause the iron casting to expand. The guides are probably rusted in.

Gene Schneider

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