Packard Forum Index » Post-War (1946-54)

I checked Merritt’s and they list the 2 different tools, but the listings state they are for 327’s. Am I to assume 327’s and 359’s the same?

kevinpackard wrote:
We used a similar setup when we installed the valve guides in my dad's '38 Super 8 engine rebuild. Actually, we did it twice because like an idiot I installed the guides upside down....so I got to remove them all and redo them the correct way.

The screw press was very easy, though a bit time consuming.

-Kevin

JeromeSolberg wrote:
Instead of pounding out the two valve guides where the boss was chipped, I made a SCREW PRESS, out of 5/16" threaded rod, standard 5/16" nuts, and some spacers and washers, all purchased at a hardware store for $10. WORKED PERFECTLY.

I got the idea from this video made for pulling the valve guides on a flathead Hudson:

Flathead Hudson Valve Guide Pull

So much easier, less violent, and less dangerous (both to ones' person and to the block) than pounding them out. I used standard Grade 2 threaded rod, at one point it started to strip, I just moved things down to a different thread. However, Grade 5 and Grade 8 threaded rod is also available and one might instead use that. The guides were undamaged. It was a simple process and TOOK MUCH LESS TIME than pounding each guide out did. The block was out of the car but this same process should be possible with the guide in the car as well.

Subsequent to getting those two out, I used a Dremel to smooth and round where the bosses were chipped, which wasn't too hard. Hope that works. I intend to use the dry ice method and tap them in again as before, though it should be possible to use the screw press in reverse as well, I may do that if they don't go in easy.

JeromeSolberg wrote:
Hi Folks,

Well, I started working on replacing the Valve Guides. Gosh, one really has to pound on them hard to get them out! They started to chip and disentegrate while I was pounding them out.

I was using this tool:

https://www.cylinderheadsupply.com/kl1765.html


It started to deform this tool a little bit, the shoulder was mushrooming.

I tried pounding a new Valve Guide in (from Kanter) and it ended up chipping a little bit, I had to pound it out, too. Fortunately I had bought one extra each of the exhaust and intake valve guides.

But I think I will try the dry ice method for installing them.

I was thinking of buying another tool to have as a spare. Do you folks recommend the tool above, or perhaps this one:

GP-534-G .343" x .487" x .336"

https://goodson.com/collections/valve-guide-drivers/products/manual-valve-guide-drivers-sae

I really don't want to break another one installing it. I hope the dry ice method works!

Thanks and Cheers,

Jerome

JeromeSolberg wrote:
I had to hit it pretty hard, so much that the tool, which was made of hardened steel (I got them from two different vendors with the same result, in the notes) mushroomed.

The valves I removed were because of an issue with installation, so it makes sense that the screw press worked for that but maybe it would be more difficult for 70-year-old-guides.

I used a handheld sledge and put wood blocks around and swung it pretty hard. If i was doing #8 I might have to take the hood off, but if you are just doing #4 you would have enough room. Hold the valve driver with blocks so that you don't have to hold it with your other hand, so you can swing freely.

list of valve guide drivers and picture of handheld sledge and blocks