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Oil Leak on 83 GS1100E

  • Thread starter Thread starter koolaid_kid
  • Start date Start date
K

koolaid_kid

Guest
I just picked up (it was delivered) an 83 GS1100E with 24k miles.
Bike is very clean, very stock.
I put about 8 miles on it (it is 35 degrees here in Indy) and noticed it was leaving drops on the floor.
I looked for the leak; it appears to be from the front of the engine, below the head, between the two middle cylinders (2 & 3?).
Any clues as to where to look first? The oil is very clean, indicating fresh and straight from the inside somewhere.
I have a Clymer's coming in the mail, but it is not here yet.
I am very bike-literate, but this is my first GS1100E.
Thanks, kk
 
oil leak

oil leak

The cam chain tensioner at the back of the barrel (flows down through the barrels) or a leaky head bolt inside the engine.Easy to fix.
 
First, congrats on the bike. I love those 1100's.

If I was to guess, and that's what I'm doing, I would say a leaky cylinder base gasket. Those things get old and brittle and ... well, you know the rest of the story.
 
srivett2 said:
Tachometer drive too

Steve
Click to expand...

That was my thought. Check and see if where the tach cable enters the engine isn't the culprit. Start cheap with replacing those O-rings before you tear into the engine.

Brad tt
 
Re: Oil Leak on 83 GS1100E

On the front of the engine, below the head, between the 2 and 3 cylinders there is a bolt. You will need to lay down and look up at the area between the 2,3 cylinders below the cam chain casting/bulge. You will see the 10 mm bolt head. It screws up. If it is not tight, its a guaranteed leak in the spot you describe. (had that problem, been there, done that :-) )

Earl

koolaid_kid said:
I just picked up (it was delivered) an 83 GS1100E with 24k miles.
Bike is very clean, very stock.
I put about 8 miles on it (it is 35 degrees here in Indy) and noticed it was leaving drops on the floor.
I looked for the leak; it appears to be from the front of the engine, below the head, between the two middle cylinders (2 & 3?).
Any clues as to where to look first? The oil is very clean, indicating fresh and straight from the inside somewhere.
I have a Clymer's coming in the mail, but it is not here yet.
I am very bike-literate, but this is my first GS1100E.
Thanks, kk
Click to expand...
 
On my bike there was oil film running around the head gasket area after a good hard run, cleaned it off & ran the bike at idle & above , no oil film.
Then I noticed a drip of oil on the cam chain tensioner!
The oil was being sucked through the gap in the barrels at speed & placed straight on to the head joint.
Picked up an o ring from the hardware 3 months ago for the lock bolt ,no pobs.
 
On my bike there was oil film running around the head gasket area after a good hard run, cleaned it off & ran the bike at idle & above , no oil film.
Then I noticed a drip of oil on the cam chain tensioner!
The oil was being sucked through the gap in the barrels at speed & placed straight on to the head joint.
Picked up an o ring from the hardware 3 months ago for the lock bolt ,no probs.
 
Thanks for all the quick responses. They are greatly appreciated.
earlfor, I noticed that bolt, it is exactly where the oil leak is. I will try that first, as it would be a quick fix. I could not figure out why it is upside down or what it does.
To others, I checked the tach drive, the leak is below that, but thanks for directing me to look there as well.
I was disappointed to see the leak, as my Kaw is also down with a similar leak. But hey these are old bikes, I mean bikes with character, so these things happen. :)
kk
 
Mystery partially solved. Tightened the upside down bolt per earlfor's suggestion. Washed the oil off, went for a short ride. Now oil is pouring out (well, a fairly steady drip) from the front of the valve cover. It appears that the gasket is leaking where the two inside bolts are located. :cry: :cry: :cry:
Tightening them did not stop the leak, so it looks like the tank is coming off. Caveat empor. :x
Is there an on-line parts house that this forum recommends?
kk
 
For a reusable silicone valve cover gasket, try this place:

http://www.realgaskets.com/

Just be aware that the torque values for these gaskets are in INCH-POUNDS. The correct torque will be less than a full turn past finger tight. Many of us on the forum use these gaskets. Since I have the same bike as you I can assure you that this gasket will work.

Joe
 
Thanks, Joe. Placed the order just now.
Know what you mean about the torque. I broke off a few in my day before they trained me to be gentle.
kk
 
KK,

The torque required for these gaskets wouldn't break a plastic screw. Most people who have installed these worry if there is enough torque to keep the screws from coming loose.

Joe
 
As you can see by the number of suggestions, there are plenty of potential leaky spots.
 
I had quite a few valve cover bolts back out a full turn after getting the realgasket. It can be tricky to get the bolts to stay in but it is so worth it when you don't have to clean off the old gasket.

ps. The upside down bolts are for the head gasket. Mine drips from there when I'm beating on the bike but hasn't gotten bad enough to pull the head.

Steve
 
Finally, for once, someone has the same problem as I do. 8O 8O :x :x :wink: :wink:
My 83 1100E developed a leak in the same area, back in November while riding in Florida traffic.
I will have to give the upside down bolt a snug to see if that helps.
Suzi is outside right now getting some sun after being in the shed all winter.
15 more days till spring 8) 8) 8)
 
I found that on my 81 the valve cover gasket in that area (the little bump at the cam chain tunnel) would degrade more in that specific spot faster than the rest of the gasket. I could pull off the gasket from all around the valve cover by hand except for that spot. I had to scrape it like mad. Maybe it heats up and cools faster than the rest of the head? I don't know, all I can say to both you guys is that I never had much luck just tightening down that bolt. I'm afraid it's new VC gasket time.
 
I too have ordered a gasket from Real Gaskets. It sounds like a few of you have had some problems with the screws backing off due to the low torque values. How did you cure the problem...locktite?

Kind regards...Craig
 
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