Ace 90 Fork Rebuild

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bobwhitman
Posts: 402
Joined: Sat Jul 27, 2013 4:49 pm
Location: Eugene, OR

Ace 90 Fork Rebuild

Post by bobwhitman »

OK, you old guy Ace experts: I'm working on a "Race90" build (using a few series 91 parts). Need to remove/replace part #908713 Inner tube oil seal. Shop manual blithley sez: "Place circular nut (the chrome piece) top side down on a wooden block & w/a thin punch & hammer " drive it out.

Not so easily done. I've removed pieces of said seal from a sacrificial circular nut (so I don't f**k up the good ones I need to use) after extended periods of whacking away, but the $#@%$*&? seal itself resists removal. Was to have been installed using a "suitably sized bushing driver" and Terry's site shows an ordinary appearing seal.

What am I missing here?

Bob
taber hodaka
Posts: 2240
Joined: Mon Jul 29, 2013 6:34 pm

Re: Ace 90 Fork Rebuild

Post by taber hodaka »

Bob it was so easy in the past when my hodaka shop was open. But I had to put new ones in my now rebuild and I had forgotten how. The first one I cut out with a dremal and I hate that. The second one I put on the block of wood or steel and used a beat on screwdriver just miss the steel lip and catch the seal, whack whack and it was out. ----------Clarence Call anytime 406-281 9326
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Dale
Posts: 1272
Joined: Fri Jul 19, 2013 7:23 am

Re: Ace 90 Fork Rebuild

Post by Dale »

Yes they can be a real challenge to remove! I have had success soaking in penetrating oil then heating it with a heat gun to the point of melting the rubber then using a large socket to knock it out. Use the largest socket that will pass through the nut.
I have also been to the point of breaking out the dremel. Once the rubber is out you can notch the remaining metal band (not cut through it). With several notches cut you can get a small screwdriver behind it and flex it out.
Dale
taber hodaka
Posts: 2240
Joined: Mon Jul 29, 2013 6:34 pm

Re: Ace 90 Fork Rebuild

Post by taber hodaka »

I will try it on about four and report back. ----------- Clarence
viclioce
Posts: 4847
Joined: Mon Apr 21, 2014 5:35 pm
Location: Santa Fe, NM
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Re: Ace 90 Fork Rebuild

Post by viclioce »

I couldn’t even get the fork nuts in 2 sets of 90 forks to loosen…. :ugeek: Victor

1978 175SL
1976 03 Wombat
1975 99 Road Toad (2)
1973 96 Dirt Squirt (2)
1973 “Wombat Combat”
1973 Combat Wombat
1972 94 Wombat (2)
1972 Super Squirt
1971 92B+ Ace
1970 92B Ace 100B (2)
1968 92 Ace 100
1966 Ace 90
; D Victor
givergas
Posts: 790
Joined: Sat Sep 16, 2017 11:41 am
Location: minnesota

Re: Ace 90 Fork Rebuild

Post by givergas »

heres how i pressed the seals in maybe use something along these lines to press it out. the piece of plastic pipe i used fit nice and snug and moved freely in the nut
Attachments
IMG_7017.JPG
bobwhitman
Posts: 402
Joined: Sat Jul 27, 2013 4:49 pm
Location: Eugene, OR

Re: Ace 90 Fork Rebuild

Post by bobwhitman »

Guess it’s not just me. Miserable little job! Thanks guys.
Bob
taber hodaka
Posts: 2240
Joined: Mon Jul 29, 2013 6:34 pm

Re: Ace 90 Fork Rebuild

Post by taber hodaka »

I just removed two ace 90 seals very rusted it took about 3 minutes for both to be removed, easy as pie no lube no heat. I used a 1 pound hammer, old screw driver on a 1 inch piece of steel, the seal is incased in rust. ------ Clarence
viclioce
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Joined: Mon Apr 21, 2014 5:35 pm
Location: Santa Fe, NM
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Re: Ace 90 Fork Rebuild

Post by viclioce »

That doesn’t look like an Ace 90 fork nut. That’s an Ace 100 after going to the later forks. :ugeek: Victor
Last edited by viclioce on Sun Aug 15, 2021 1:41 pm, edited 1 time in total.

1978 175SL
1976 03 Wombat
1975 99 Road Toad (2)
1973 96 Dirt Squirt (2)
1973 “Wombat Combat”
1973 Combat Wombat
1972 94 Wombat (2)
1972 Super Squirt
1971 92B+ Ace
1970 92B Ace 100B (2)
1968 92 Ace 100
1966 Ace 90
; D Victor
taber hodaka
Posts: 2240
Joined: Mon Jul 29, 2013 6:34 pm

Re: Ace 90 Fork Rebuild

Post by taber hodaka »

Kinda like a piston is a piston, is a piston is a piston. Inner tube circular nut, same seal, same effort, same process. Same forks I think, but did not check. ------- Clarence
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