Belarus 420 Got an oil leak and seeing exaughst coming from cylinder: Belarus  -- Other Tractor Brands Discussion Forum and Review Belarus 420 Got an oil leak and seeing exaughst coming from cylinder: Belarus -- Other Tractor Brands Discussion Forum

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 03-12-2011, 21:57 Post: 177366
belarusman



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 Belarus 420 Got an oil leak and seeing exaughst coming from cylinder

For some reason i have developed a oil leak. looks like it could be coming from the top of the push rod tube. Also seeing what looks to be exaughst coming from the same area as the oil leak. Really notice it when engine is under load
I have got an older model 420, year 1982.
It runs great, this just happened. Anyone know what might be going on here and what might have to be done to fix it.
Thanks in advance for any help.






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 03-14-2011, 16:56 Post: 177381
Murf



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 Belarus 420 Got an oil leak and seeing exaughst coming from cylinder

Sounds like you have a lot of blow-by, compression that's leaking into the crankcase, usually because of a broken ring if it came on suddenly.

Where in Canada are you? There's a few good (and helpful) dealers around.


Best of luck.






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 03-14-2011, 18:58 Post: 177384
belarusman



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 Belarus 420 Got an oil leak and seeing exaughst coming from cylinder

Thanks for the reply.
Yes there are a couple dealers in the area.
I'm just west of edmonton, alberta.
The oil, could it be coming from the push rod. Kinda looks like it might be right @ the top of it. I never really had much to do with these engines, now as for the exaughst. not sure whats going on there. is there any way it could be coming from there as well. Any how i apprecciate your feed back. Maybe we can get together for a beer eh!






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 03-18-2011, 13:38 Post: 177434
vladimirec



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 Belarus 420 Got an oil leak and seeing exaughst coming from cylinder

take down the head ( only 6 screws). replace rubber seal on pushrod tube, in the same time you could take down cylinder and check piston rings. Pistons, rings, pushrod tubes, gaskets etc. are same on all belarus air cooled models: 400,420,250.






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