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blowing oil out vent tube

  • Thread starter Thread starter 65chevelle
  • Start date Start date
6

65chevelle

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I am talking to a guy about buying a 82 GS1100GL I have not seen it he says it runs great and is very fast but it blows oil out the vent tube of the engine, it has 13000 miles on it. Any ideal what might be wrong with it?
 
reddirtrider said:
Probably rings and at 13k? Run a compression check.
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That would be my guess. If it sat for any extended periods, and with only 13k mileage it probably did, it could have stuck rings. If it sat the cylinder walls could have rusted and damaged the rings and cylinders when they ran it again. I'd second doing a compression check.
 
It has pods? Doesn't it go to the air-box?
If it only has 13k buy it and ride the crap out of it. The rings will seat.
 
An Italian tune up will work wonders on a bike that has had less than 1,000 miles per year for a quarter of a century... Buy it, put good oil in it, ride it long and hard, then check the compression and blowby again. Can't hurt to put Marvel Mystery Oil into the cylinders and let it soak into the rings a day or three beforehand.
 
I bought this bike it is blowing oil out the vent behind the starter cover below the carbs very small tube. Just got it going to look close at it later. I am thinking it might be the final drive oil vent?
 
65chevelle said:
I bought this bike it is blowing oil out the vent behind the starter cover below the carbs very small tube. Just got it going to look close at it later. I am thinking it might be the final drive oil vent?
Click to expand...

I don't think there is a final drive oil vent, but if the crankcase breather tube is disconnected, that might be where it'll blow.
 
It is the secondary vent.Hoping it is over filled? Getting ready to change it and fill to spec.
 
65chevelle said:
I bought this bike it is blowing oil out the vent behind the starter cover below the carbs very small tube. Just got it going to look close at it later. I am thinking it might be the final drive oil vent?
Click to expand...
Your on the right track. Check the secondary oil level
 
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I changed the secondary oil, it helped but still blows out a little? Before it blew out alot. It runs:lol: real strong
 
This helped for a while,but here is the real problem it is getting oil from the engine into the secondary drive. Then when it is over full it blows it out the secondary vent tube it lost 2 quarts in about 30 miles so it is a bad leak. I am thinking maybe a seal somewere between the engine and secondary drive. Would it be behind the clutch? Anywere on the net that might show a exploded veiw of the engine?
 
I checked the compression it was 100/125/100/100 not sure what is normal but it sounds low and not even though out. If it needs rings were can you buy them and can you pull the cylinder jug off in the frame or is it best to remove the engine. It is hard to belive it needs rings because it starts easy and runs veryvery good lots of power and no smoke.
 
Don't worry about the compression numbers if it runs well, they will come up as you ride it a lot.

Find that leak!
 
The reason to worry about the compression is because the crankcase pressure caused by blown by around the rings might be causing the leak, i was hoping maybe someone else on here might of had the same problem or knows more than i do about motorcycles.
 
65chevelle said:
The reason to worry about the compression is because the crankcase pressure caused by blown by around the rings might be causing the leak, i was hoping maybe someone else on here might of had the same problem or knows more than i do about motorcycles.
Click to expand...

That's why it has a breather.
 
65chevelle said:
This helped for a while,but here is the real problem it is getting oil from the engine into the secondary drive. Then when it is over full it blows it out the secondary vent tube it lost 2 quarts in about 30 miles so it is a bad leak. I am thinking maybe a seal somewere between the engine and secondary drive. Would it be behind the clutch? Anywere on the net that might show a exploded veiw of the engine?
Click to expand...

Not sure about a engine pic (will check). It does sound like the seal the between the engine and 2ndary oil needs to be replaced.
 
It seems to have a lot of crankcase pressure and this makes me feel like this is what has caused a seal to fail. I am going to try to compare crank pressure from aother bike. And then if its ok I will try to find were and witch seal,so far no one seems sure if it has a seal. Still looking for a break down of the engine. Might try the local dealer.
 
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