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EVO All Evo Model Discussion

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Old Sep 21, 2025 | 10:43 AM
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Halloween is coming, so here’s some scary stuff for you old guys. I bought a project Evo motor. Seller said engine overheated, but rebuildable case. Hoping for the best, but expecting the worse.

Tearing it down, there was debris all inside cam chest, but lifters, cam, heads and rocker boxes all good.

Once the rear head came off, I think I found the possible reason of the loss of compression. Haha




Definitely not stock piston.


Front cylinder and piston.


I wanted a project, and I got one. 😂😂
 
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Old Sep 21, 2025 | 11:47 AM
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Should be able to weld that up . . . ???
 
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Old Sep 21, 2025 | 11:51 AM
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Little JB weld you will be fine
 
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Old Sep 21, 2025 | 12:03 PM
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Some guys over engineer…no need to go to something like JB weld. Get you some Temu compression leak additives.
 
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Old Sep 21, 2025 | 01:50 PM
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Daven9113 is never going to talk to us again
 
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Old Sep 21, 2025 | 02:57 PM
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Originally Posted by Rains2much
Some guys over engineer…no need to go to something like JB weld. Get you some Temu compression leak additives.
Couldn't he epoxy a mason jar lid over it??
 
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Old Sep 21, 2025 | 04:23 PM
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A little overheated I’d say
 
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Old Sep 21, 2025 | 04:31 PM
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Originally Posted by Illinois_Minion
Couldn't he epoxy a mason jar lid over it??
Don`t be ridiculous, everyone knows the lid should be riveted on...
 
Last edited by Dan89FLSTC; Sep 21, 2025 at 04:44 PM.
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Old Sep 21, 2025 | 04:46 PM
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Might buff out with a little effort. Rounders may be along to tell you about his rebuild and to check the rods to make sure they fall away correctly.
 
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Old Sep 21, 2025 | 05:47 PM
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Originally Posted by daven9113
Halloween is coming, so here’s some scary stuff for you old guys. I bought a project Evo motor. Seller said engine overheated, but rebuildable case. Hoping for the best, but expecting the worse.

Tearing it down, there was debris all inside cam chest, but lifters, cam, heads and rocker boxes all good.

Once the rear head came off, I think I found the possible reason of the loss of compression. Haha


I wanted a project, and I got one. 😂😂
Big jump brother.
I may have a set of .010 over stock pistons lying around. I'll take a look when I get a chance.
Definitely use a top notch 3 hole crank pin going back together with the lower end.
Have fun.

Griz
 
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