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Author Topic: Easy way to remove tach drive seal??  (Read 1848 times)

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Offline Magpie

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Easy way to remove tach drive seal??
« on: January 29, 2010, 08:02:23 PM »
This is for an early sandcast 750 engine. The valve cover is much thinner than later ones especially around the tach drive hole. I've already knocked a sliver of metal away trying to get the seal out. I wonder if it needs to be replaced at all since I haven't seen others leak there however.............I do have a new seal and I've come this far. Any easy ways to remove a 40 year old seal?
Thanks,
Cliff.
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Offline Duke McDukiedook

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Re: Easy way to remove tach drive seal??
« Reply #1 on: January 29, 2010, 08:05:08 PM »
Dental pick worked for me.
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Offline GammaFlat

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Re: Easy way to remove tach drive seal??
« Reply #2 on: January 29, 2010, 08:11:56 PM »
I used a small wood screw.  Go directly into the seal and maybe do 2 - one at 12 o'clock and one at 6 o'clock.  Use pliers to pull the wood screw.  Be real careful about not scarring the aluminum with the screw.

Good luck
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Offline Johnie

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Re: Easy way to remove tach drive seal??
« Reply #3 on: January 29, 2010, 08:13:53 PM »
I drilled a real small hole to get the screw started. Then it pulled out. I like the idea of the mechanics pick.
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Offline 1080

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Re: Easy way to remove tach drive seal??
« Reply #4 on: January 29, 2010, 08:15:20 PM »
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Offline 754

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Re: Easy way to remove tach drive seal??
« Reply #5 on: January 29, 2010, 08:50:27 PM »
Cliff, maybe I can mail one...
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Offline nokrome

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Re: Easy way to remove tach drive seal??
« Reply #6 on: January 29, 2010, 10:05:23 PM »
you guys are funny ;)
   i used a big wood screw and screwed it into the hole that was already there
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Offline nokrome

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Re: Easy way to remove tach drive seal??
« Reply #7 on: January 29, 2010, 10:07:16 PM »
of course i had the cover off the engine  ;D
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Offline Magpie

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Re: Easy way to remove tach drive seal??
« Reply #8 on: January 29, 2010, 11:36:32 PM »
I finally used a pick, thank you dukiedook, and added more courage and out it came. The new one went home with the aid of a 10mm socket gently pushing it down the hole, aided with some PB Blaster.
Thanks for your quick response guys!
Cliff.
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Offline Duke McDukiedook

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Re: Easy way to remove tach drive seal??
« Reply #9 on: January 30, 2010, 03:09:11 AM »
No problem, I have found those picks to be quite useful on all my vehicles.
Definitely a good find for a couple of bucks.
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"Well, Mr. Carpetbagger. We got somethin' in this territory called the Missouri boat ride."   Josey Wales

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Offline Johnie

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Re: Easy way to remove tach drive seal??
« Reply #10 on: January 30, 2010, 05:18:08 AM »
Quote from: Magpie on January 29, 2010, 11:36:32 PM
I finally used a pick, thank you dukiedook, and added more courage and out it came. The new one went home with the aid of a 10mm socket gently pushing it down the hole, aided with some PB Blaster.
Thanks for your quick response guys!
Cliff.

Here is what I use for pushing the new one back in. It is an old tach cable end. I guess you can make a tool out of anything you don't toss out.  ;D
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1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

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Offline Magpie

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Re: Easy way to remove tach drive seal??
« Reply #11 on: January 30, 2010, 09:14:18 AM »
Good idea Johnie! The 10mm socket I have fits the hole quite nicely, the only thing I could think of at the time. I also used several sockets to help replace the seals in the covers. Slowly, slowly....................
Cliff.
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