EVO All Evo Model Discussion

Crap, now what?

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Old Apr 18, 2022 | 02:20 PM
  #21  
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If you're going to do the work yourself, this was a helpful video for me doing it for the first time. I lucked out and only had to do the front cylinder gaskets. I'm not a mechanic and this was the first time doing engine work like this...and it's still running. Word of advice doubling up on upper rocker gaskets is not recommended. lol I still have no idea how I missed that upon re-assembly. fortunate again it was an easy fix as I had experience now.

 
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Old Apr 18, 2022 | 02:34 PM
  #22  
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Originally Posted by 1340
the worst area was behind the pushrod tubes and just noticed there was one little spot of oil on the fin above the head gasket.
Could be you found it.

With the work you had done recently, they were twiddling with the pushrods. Wouldn't be a hard thing at all for them to have disturbed the seal and created a drip.
 
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Old Apr 18, 2022 | 04:32 PM
  #23  
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This is why I asked for more pics.. I've not seen a head gasket leak so much that it drips.. And yes an upper pushrod tube o-ring will leak down the fin to the rear of the head.
 
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Old Apr 18, 2022 | 06:02 PM
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Originally Posted by 98hotrodfatboy
This is why I asked for more pics.. I've not seen a head gasket leak so much that it drips.. And yes an upper pushrod tube o-ring will leak down the fin to the rear of the head.
Great minds think alike.
 
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Old Apr 18, 2022 | 11:32 PM
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Opp's wrong thread.
 
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Old Apr 19, 2022 | 06:23 AM
  #26  
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Right. Seeping is one thing and leaking is something else. I had some seepage occurring through the rear base gasket on my 93 FLSTC. I'm not going to go through the time and expense of replacing the gasket but I did get it to stop seeping. I don't really care for Evos but it is a pretty good looking and running bike. However, if someone should come along with a decent running Shovelhead (don't really care how it looks) I'd probably swap even up.
 
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Old Apr 19, 2022 | 01:39 PM
  #27  
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Compression test would help here.
 
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Old Apr 21, 2022 | 05:10 PM
  #28  
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Thanks for all of the help everyone!

Since I cleaned it all up, I’ve got about another 150 miles on and so far so good. Based on what I initially found, there should at least be some seepage or something visible at this point. Hoping it’s just a false alarm. Have a gasket kit ordered just in case.

I’ll commute it a couple times and maybe another long ride and if all goes well, gonna do a 3-hole fluid change and go!
 
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Old Jun 27, 2022 | 11:21 AM
  #29  
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Made it through the 4k mile trip and ran great. Just needed to get a fork seal replaced after a nasty dust storm but that was the only hiccup.

Going to tackle the gasket job soon. I have a pretty good handle on the process, but looking for a close-up photo or video about separating the piston at the wrist pin. I want to keep the rings compressed in the piston and worried I’ll be trying to balance the whole thing and figuring out how to get the pin out. I’m sure I’ll figure it out, but want to know what I’m getting into beforehand.

I see there’s a removal tool available - do I need one? Didn’t see any mention above. Otherwise I should just need an inch-lb torque wrench and the internal torx sockets in addition to the tools I already have. Also going to have a gasket scraper and permatex gasket remover on hand.
 
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Old Jun 29, 2022 | 03:19 PM
  #30  
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The Harley Techs figured out that you can leave the intake manifold in place and remove both cylinder heads and the manifold at the same time. You're probably going to replace both manifold seals when it goes back together...
Once all of the head bolts are out they're just sitting there.
It's easier to remove the manifold seals/clamps from the heads on the bench.
 
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