EVO All Evo Model Discussion

Primary seals replacement

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Old Jan 28, 2022 | 07:34 PM
  #21  
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Put a wrench on the two front primary bolts, see if they can use some tightening, for now.
 
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Old Jan 29, 2022 | 08:07 AM
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Originally Posted by Schex
Put a wrench on the two front primary bolts, see if they can use some tightening, for now.
If they did come loose inspect the raised lip for the O-rings on the case for cracking.. I have seen it...
 
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Old Jan 30, 2022 | 06:34 PM
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Originally Posted by Ghetto blaster
Some of the older Evo's require a gear puller to remove the clutch hub.
The tapered mainshaft models require a special puller, 1989 and earlier.
 

Last edited by Dan89FLSTC; Jan 30, 2022 at 06:44 PM.
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Old Jan 30, 2022 | 06:42 PM
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Originally Posted by Dan89FLSTC
Only tapered mainshaft models require a special puller, 1989 and earlier.
Not so, At one point it was recommended to use red loctite on the splines to adhere the basket to shaft, which made it difficult to pull the basket... Therefore requiring a three finger puller.. The biggest issue was that there was too much clearance between the clutch hub and shaft requiring the red loctite.. if not used the splines on the inner hub we're breaking...
 
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Old Feb 2, 2022 | 02:45 PM
  #25  
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Whelp, after all that, looks like I'm an idiot. When I first got the bike, i had a local shop change the stator. this was when I was young and (more) foolish and was afraid of going into a primary. When he did the job he told me the inner primary was covered and I would need seals. So I cleaned the hell out of it (three cans of brake cleaners worth) and rode it. No leaks for months. Now that they are back, I automatically assumed it was the same leak. So I took a closer leak and now see the rear cylinder base gasket is weeping, and the oil was running (not really running, more like crawling) down the primary side and that's what is causing the drips.

So just to be 100% sure, I'm going to degrease the hell out of it and this time watch the suspect area to see if it is simply the base gasket.

If it is, my project just went from a PITA repair, to a fun, "let's add some new jugs and pistons" job...
 
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Old Feb 2, 2022 | 03:00 PM
  #26  
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Originally Posted by Mchad
Whelp, after all that, looks like I'm an idiot. When I first got the bike, i had a local shop change the stator. this was when I was young and (more) foolish and was afraid of going into a primary. When he did the job he told me the inner primary was covered and I would need seals. So I cleaned the hell out of it (three cans of brake cleaners worth) and rode it. No leaks for months. Now that they are back, I automatically assumed it was the same leak. So I took a closer leak and now see the rear cylinder base gasket is weeping, and the oil was running (not really running, more like crawling) down the primary side and that's what is causing the drips.

So just to be 100% sure, I'm going to degrease the hell out of it and this time watch the suspect area to see if it is simply the base gasket.

If it is, my project just went from a PITA repair, to a fun, "let's add some new jugs and pistons" job...
Should always be the first thing to do instead of speculating...
 
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Old Feb 2, 2022 | 03:12 PM
  #27  
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Originally Posted by 98hotrodfatboy
Should always be the first thing to do instead of speculating...
Might have been easier just to call me an idiot...
 
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Old Feb 2, 2022 | 05:20 PM
  #28  
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Just noticed "Still slow as dog ***** compared to below" LOL, maybe you can narrow the gap some now.

 
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Old Feb 2, 2022 | 05:54 PM
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Originally Posted by Mchad
Might have been easier just to call me an idiot...
No... Not meant that way.. .

 

Last edited by 98hotrodfatboy; Feb 2, 2022 at 06:16 PM.
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Old Feb 2, 2022 | 07:17 PM
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Originally Posted by 98hotrodfatboy
No... Not meant that way.. .
I know, I was kidding. That why I liked the post.
It’s how I feel about myself!
 
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