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-   -   Secondary valve shaft seal removal? (http://zr1.net/forum/showthread.php?t=33718)

Subfixer 01-03-2022 05:38 PM

Secondary valve shaft seal removal?
 
Looking for advice as to how to remove the secondary valve shaft seals from the heads.
I can't figure out how to get behind them to drive/pry them out.
Thanks.

spork2367 01-04-2022 09:02 AM

Re: Secondary valve shaft seal removal?
 
I used a a heavy pick tool.

Subfixer 01-05-2022 06:35 PM

Re: Secondary valve shaft seal removal?
 
I tried using a scribe to get between the head and the seal. Broke 2 of them. Really trying to not damage the aluminum in the bore.
I need a sharper/harder tool.....

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Paul Workman 01-06-2022 04:02 PM

Re: Secondary valve shaft seal removal?
 
I fashioned a make-shift puller. With an 8-point socket just big enough to span the bearing, a bolt through a fender washer and socket and the bearing with a nut threaded on the end (back of the bearing), and another nut on top of the fender washer. I screwed down the nut against the washer. The bolt pulled the bearings out - easy peasy!

Then I pressed in a Dorman freeze plug with a little JB Weld to seal the hole. If I still have the little rig, I'll snap a pic and post it. - Pretty simple tho - a #6 machine screw about 2-1/2" long, a socket, a fender washer, & a couple of nuts.

Subfixer 01-06-2022 04:23 PM

Re: Secondary valve shaft seal removal?
 
Getting the Shaft and bearing out was the easy part.
Getting the seal behind the bearing out is where I'm at. (Unless I misunderstood your explanation)

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Jagdpanzer 01-06-2022 07:31 PM

Re: Secondary valve shaft seal removal?
 
They will pry out with a flat blade screwdriver. Forget about trying to save the lip seal though.


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1991 Corvette ZR-1 01-07-2022 09:29 PM

Re: Secondary valve shaft seal removal?
 
Did you remove all the bearings? Curious if you have any pictures of the process. I am looking to do this in a few months.


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