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Also, this is not the same motor that failed , it’s a parts motor that I’m seeing what is usable from

Top half of case . Is this hooped? Some definite pitting.

General majority seems to be c clip failed. Was running on a nice day, -5-7, got some parts ordered, give it another go, hope to learn from mistakes.

Ok, sounds good , I’ll pull it all apart , have someone look at the crank I guess, , and give it a shot again, good idea to put new bearings? Or is there a way to flush them or make sure nothing is left behind?

So, this was my first, I was just trying to trouble shoot with as much info as I could , it was mentioned above that the pitting is typical of lean conditions. If it’s “ bad assembly “ then fine , was it the clips that look installed wrong? It’s coming apart and will be attempting to right...

That’s what I’m thinking , ran better than it seemed it should, ( too good to be true) carb boots good fresh crank seals, I think it just leaned right out

Maybe the 240 main instead of the factory 280 could cause this , wish I had noticed that

Took carb back apart and it has 240 main in it and spec says 280 , looks like I missed that. Someone along the way must’ve got her leaned out I guess .

Also some scoring in the mag side cylinder exhaust side

Bought the sled as fixer. The mag side piston was cooked, same damage except the piston was a lot worse , I think cause buddy kept running it on one cylinder (pto side ) took the whole motor down , sent out for cleaning , new crank seals gaskets pistons , carb rebuilt and set to factory. Was...

Motor was failed, mag side piston was melted. Entire motor was taken down to the crank, sent in for cleaning , new bearing o rings , crank seals, new gaskets new pistons carb rebuilt , set to factory specs, ring look fine but like I said , it looks like the c clips broke on each piston, on one...

Early 80’s citation. 377 motor , looks like wrist pin clips are broken.

rings look fine but the c clips holding the wrist pins look broken. The kind that don’t use snap ring pliers . Could that material make its way up to the top?

Fresh motor rebuilt from crank up, maybe 50 km . Used pre mix for breaking in, ran amazing till it died . Lean? Debris? I’ll be pulling it apart next week but not sure what to watch for in the repair .

Lean? Debris in fresh motor rebuild?

Old thread but info is always good to share. Prairie recreation in Prince Albert is awesome to deal with. Rec supply as we'll in Saskatoon . Royal out in Ontario is very good. But, just had a dealing with ORPS in Ontario and what a nightmare ! Ordered pipe in January , never showed, tried to...

X2 on the sthil saw .

My MBRP works great .No issues

Get some wetfire packs, very cheap and very good, along with a key chain flint and the saw from you pack, pretty easy to make fire on the hill.

That full lotus metals single looks very good. Tailgate off , looks easy to use , simple. No ramps to fuss with . No bowed out or pitted up tail gate.