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-   -   2084 oil in the air filter (https://www.onlycubcadets.net/forum/showthread.php?t=25890)

sandreassi 07-06-2013 03:51 PM
2084 oil in the air filter
 
I am posting on behalf of my brother. He has a 2084 that is blowing oil up into the air filter. He had the breather assembly replaced but he's still getting oil up into the air filter. His son says he uses quite a bit of oil when mowing at WOT. Is there any other cause for something like this?

Thanks for any help.

superG 07-06-2013 03:58 PM
What is the oil level? In my experience, if the oil is overful, it will puke back up into the intake.

sandreassi 07-06-2013 10:29 PM
Oil level is good. From what I understand it does it no matter what the level is though.

He was told that oil could b getting past the rings an the engine might be going. Does that sound reasonable?

J-Mech 07-06-2013 10:37 PM
It is possible. What weight of oil is he running? Is the air filter clean?

dale c. 07-07-2013 07:09 AM
a leaking rear crank seal will do that the flywheel blows it into the air cleaner

Mike McKown 07-07-2013 09:24 AM
The only two things I know that causes oil to get into the air cleaner is a dirty filter or a worn engine.

That's not to say there's not other causes.

Do a leak down check on the cylinders.

J-Mech 07-07-2013 12:41 PM
Quote:
Originally Posted by dale c. (Post 204255)
a leaking rear crank seal will do that the flywheel blows it into the air cleaner
It is my understanding that the oil is coming from the vent tube INSIDE of the air cleaner. Is that correct?

garybotkin 07-07-2013 04:00 PM
Mine is in the shop getting overhauled right now. Started as the same problem. Its blow by...

Plowboy1086 07-07-2013 04:17 PM
mine did the samething the rings wore out and I got through 2 qaurts of oil just messing around and hooking chains to my buddies gravely. it also covered the hole inside of my engine bay side panels and hood.

sandreassi 07-07-2013 05:04 PM
The last few posts make me think his engine is on its way out. Is this in need of a rebuild or something less?

Thanks for all if the help, as always.

Plowboy1086 07-07-2013 08:43 PM
I got mine board out but it was the junk briggs aluminum block so it did it again. Got a kohler in it now

sandreassi 07-07-2013 10:11 PM
What are some options he has for used engines that will work in this model?

Mike McKown 07-08-2013 10:28 AM
Quote:
Originally Posted by sandreassi (Post 204340)
The last few posts make me think his engine is on its way out. Is this in need of a rebuild or something less?

Thanks for all if the help, as always.
If either one of the head gaskets are blown and the path is through the pushrod area of the cylinder, the compression can pressurize the crankcase and push oil out.

It's easy enough to check. Just put air pressure in the spark plug hole with both valves closed and then listen.

J-Mech 07-08-2013 11:09 AM
Quote:
Originally Posted by Mike McKown (Post 204457)
If either one of the head gaskets are blown and the path is through the pushrod area of the cylinder, the compression can pressurize the crankcase and push oil out.

It's easy enough to check. Just put air pressure in the spark plug hole with both valves closed and then listen.
That's a really good idea. :beerchug:


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