VALVE GUIDES

[broker-len]

I am working on a 32 PA plymouth the guides are bad and need to come out the motor is in the car----have a 1935 Motors manual that shows a tool ( see picture) for extracting another way would be to make shure tapet is not on lobe and tap down and break off --there is the bronze sleeve method ------does any one out there have experiance doing this job ? any advise ? bobnroman@yahoo.com

[Guest rsd9699]

By "bad" - are you trying to solve an oil problem?

No picture came through.

Ron

[dep5]

I am working on a 32 PA plymouth the guides are bad and need to come out the motor is in the car----have a 1935 Motors manual that shows a tool ( see picture) for extracting another way would be to make shure tapet is not on lobe and tap down and break off --there is the bronze sleeve method ------does any one out there have experiance doing this job ? any advise ? bobnroman@yahoo.com

Attached is a picture of a Miller Service Tool valve guide pulling/installing tool. A newer version employes a tap to generate threads in the guide. Some will say break the guides off and drive them out. Lot'sa ways to do it.

You can pull the guides out with 'all thread' rod and make up your own adapters, a short tail piece slightly smaller dia than the guide to keep the nut from bottoming out on the block and ong enough to drive the guide out+double nut at bottom to prevent rod from turning, use a ball bearingl thrust washer on top of your setup to reduce forces on the rodbut you must use either medium or high strength grades, the local hardware grade will not work.

I think a PB has 3/8" valve stems, check with Fastenal or McMaster Carr for 3/8" all thread or drill the guide to larger dia if you have enough stock. Fastenal will prob stock coarse thread 3/8" or 1/2" only so if you want 7/16" coarse or any dia in fine thread-you can order online McMaster-Carr

for your consideration

(std all thread is junk, general purpose low-strength steel, they have a minimum Rockwell hardness of B61 and minimum tensile strength of 53,000 psi,)

Medium-Strength Alloy Steel Threaded Studs and Rods—ASTM A193 Grade B7. Considered the standard for bolting pressure vessels, valves, and flanges, these studs and rods are made from chromium-molybdenum AISI 4140 alloy steel, maximum Rockwell hardness of C35, and minimum tensile strength of 125,000 psi.

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Edited October 2, 2011 by dep5
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