Oil Leak
#1
02-25-2008, 01:01 PM
Join Date: Jan 2008
Location: Halifax, Nova Scotia Canada
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#3
02-25-2008, 02:15 PM
RE: Oil Leak
Looks like the seal on the end of the crankshaft - The plug you can see in the photo with the nut head on it is to set up the timing, There is another unit into which the plug is threaded, and I think there's a gasket between it and the engine & crank.......may not be too bad.......section 10 of the manual under crankcase separation, shows a gasket, no 7......may be leaking, although can't be sure from the pics...........can't seem to download it into this message, sorry, it's a pdf file..
#4
02-25-2008, 02:20 PM
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RE: Oil Leak
Hard to say where it's leaking...
...but you should do a proper cleanup so that all the oil/dirt is gone and the engine is dry...then go for a long ride and after that try to see where the oil comes from. Stop at some ocasions and see if there is some "new" oil leaking.
(the "old man" answered quicklier.....
.....hi shadow, i can only say that today cause i'm getting old tomorrow= 40) 
(Two posts while i was writing my answer...damn i am slow......) [
]
...but you should do a proper cleanup so that all the oil/dirt is gone and the engine is dry...then go for a long ride and after that try to see where the oil comes from. Stop at some ocasions and see if there is some "new" oil leaking. (the "old man" answered quicklier.....
.....hi shadow, i can only say that today cause i'm getting old tomorrow= 40) (Two posts while i was writing my answer...damn i am slow......) [
]
#5
02-25-2008, 04:19 PM
Super Moderator
RE: Oil Leak
I had a leak similar to that one when I bought my bike a couple years ago. Originally I thought it was coming from a gasket between the crankcase and the cover. Also thought it was from the grommet around the wiring harness for the pulse generator (on the starting clutch parts page). Turns out the bike had been down on the left side at one time in it's history. There was a small hairline crack that would open up after the engine warmed up. I ordered a new Left Crankcase cover for it. Before it arrived, I JB Welded it from the inside. It's never given me a problem since. I still have the new one. It's only $42 for the cover anyway.
As mentioned by others, you really need to clean it well to get the old oil and dirt off of it. Then ride for a while to look for the source. I would think it should be easy to find.
(Added)
Oh yea, if you do end up taking that left crankcase cover off, you don't have to drain the oil. Watch that grommet at the top, it's actually got 2 grommets that are triangular in shape and fit into a wedge slot in the crankcase.
As mentioned by others, you really need to clean it well to get the old oil and dirt off of it. Then ride for a while to look for the source. I would think it should be easy to find.
(Added)
Oh yea, if you do end up taking that left crankcase cover off, you don't have to drain the oil. Watch that grommet at the top, it's actually got 2 grommets that are triangular in shape and fit into a wedge slot in the crankcase.
#6
02-25-2008, 06:53 PM
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RE: Oil Leak
Yes, this bike had been dropped on the left side too, before I bought it. I will clean her up and recheck it. Thanks for the advice, I'll have a good look at the case for any cracks.
Was your hairline crack on the housing or in the engine side? Did you need to replace teh gasket afterwards if you did remove the housing?
Was your hairline crack on the housing or in the engine side? Did you need to replace teh gasket afterwards if you did remove the housing?
#7
02-25-2008, 09:35 PM
Super Moderator
RE: Oil Leak
The hairline crackwas in the corner where there is a molded relief where the bracket that mounts to it has some nuts. This is the spare that I bought when I was going to replace it. Ifi it ever does leak again, I'm prepared. I'm pointing to where the crack was. It was difficult to see on the outside, but I could feel the oil. It was easier to see on the inside. At first it just looked like a casting mark, but closer inspection, I could tell it was a crack.
The arrow is pointing to where it was cracked, right in the corner of the relief.
I ended up filling in the inside area with JB Weld. I let dry for a day and put it back on. I did replace the gasket. I'm kinda **** that way. I really hate doing things twice. Since I was fixing an oil leak, I wanted to be sure that,if it was leaking again, it wasn't because the gasket was bad.
The area circled is where I filled in with JB Weld. I made sure that I didn't get the filler so high it would get hit by the pulse generator disk. It spins in close proximity to the cover.
The arrow is pointing to where it was cracked, right in the corner of the relief.
I ended up filling in the inside area with JB Weld. I let dry for a day and put it back on. I did replace the gasket. I'm kinda **** that way. I really hate doing things twice. Since I was fixing an oil leak, I wanted to be sure that,if it was leaking again, it wasn't because the gasket was bad.
The area circled is where I filled in with JB Weld. I made sure that I didn't get the filler so high it would get hit by the pulse generator disk. It spins in close proximity to the cover.
#8
02-25-2008, 10:18 PM
#9
02-25-2008, 10:25 PM