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Buell Forum » Old School Buell » Archive through July 24, 2010 » Crankshaft out put seal leaking « Previous Next »

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Preybird1
Posted on Tuesday, July 13, 2010 - 10:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Well it has only been 3k miles since i had the stearlership replace the seal!! God dam it they did it wrong and now it is leaking.

The stock one went 11k miles before it went.

This just started 3 days ago while out riding in some hot weather.

It only leaks at high rpm and anything over 100 mph and the oil starts to flow.


Well i have 2 other leaks i need fixed. Now i am going to have to stop riding this bike until i can get this major leak fixed.
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Reepicheep
Posted on Tuesday, July 13, 2010 - 12:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Right on schedule. It'll get worse fast. They seated it too deeply. (DAMHIK)...
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Fahren
Posted on Tuesday, July 13, 2010 - 04:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

You would think they would be able to use their fancy "special HD/Buell tools" to get these things right. Sheesh!
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Kalali
Posted on Tuesday, July 13, 2010 - 05:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

So is it leaking out of the transmission vent hose routed under the seat?
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Buellistic
Posted on Tuesday, July 13, 2010 - 08:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Preybird1:

Sounds like you need to learn to be your own MECHANIC !!!

Did my one and only seal replacement with out any SPECIAL FACTORY TOOLS, so it can be done ...

Help INFO if you want it, just PM me ...
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Preybird1
Posted on Tuesday, July 13, 2010 - 10:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It is leaking but, I chopped the hose shorter to where it just passes the frame to the rear above the the rear fender\hugger. It started as a small "burp" of oil and it showed up on the fender.....Like 5-6 drops splattered on it. I cleaned up the bike and parked it for the night. The next day i took the bike to work and back at 80 mph no oil. That same day after work i went to the army navy store for some returns and some stuff. On the way back there is this long 2 lane exit ramp that splits off and is like a roller coaster and you can see all the highway and there is no chance of being pulled over here. So i smacked 4th gear and ripped it up to 6900 rpm.......bang 5th gear...Oh and there are walls on both sides so it sounds so awesome. I took it all the way up to 140 mph, There was nobody on this ramp but me and i had this bike built to run the high rpms.
When i got home there was more oil than the day before.

So i took it to work and back.
Well on the way home going through the construction zone the a-hole construction worker turned on the water truck on the road and made instant mud and it dirtied up my nice ride...Well there was a little oil that looked like residual oil but it was fresh.
So i completely cleaned the bike again and plan on riding it to work again in the morning.

So in the morning riding to work who do i run into at the stop light???

My little brother on his XB12 fully decked out in CF and a full race kit ECM,Exhaust you know. Well now this is going to be a race to work. When i get to work the bike has even more oil on it so now i need to stop riding it.

I know the fluid level is correct and with the leak i have at the starter now there should be no way fluid should be coming up the tube. So when it was running i plugged the tube and reved the motor nothing until about 6k and then i could feel slight pressure.
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Littlebuggles
Posted on Wednesday, July 14, 2010 - 04:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Dude
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Reepicheep
Posted on Wednesday, July 14, 2010 - 08:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yup. That's what they do when that crank seal goes. They probably seated it too deeply, and the bearings from the crank cut the rubber. DAMHIK.

My green tinker toy is now shorter. That fixed it.
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Jim2
Posted on Wednesday, July 14, 2010 - 06:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Whoa, did you say "with the leak i have at the starter now"?

You might want to pop your derby cover and check your oil level, ASAP.

Don't AMHIK
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Preybird1
Posted on Wednesday, July 14, 2010 - 11:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

clarification: The starter leak has been going on for years and it is finally to the point that it is leaking enough that the tranny oil level should be low! Not overfilled. I changed the tranny fluid a month ago. And i only put in just under 1Qt as the FSM states .95 QT of tranny oil.

This bike will not be ridden until it is fixed which will be about a week or so. I need to fix the starter gasket,the clutch cable seal on the primary cover, the stator wire plug, And the crank seal of course. They are all leaking and have been a long time before this problem started. But i am going to get them all fixed in one shot.

The stator plug leak i asked them to fix and the "tech" who worked on my bike said he forgot.

the clutch seal on the primary cover was there fault to. They had to open it up 2 times and now the fluid is going up the clutch cable and spits tiny bits of oil on my shifter arm. I was still amazed that they didn't screw up the shifter seal also!
The starter just started leaking really bad this spring.
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Kalali
Posted on Thursday, July 15, 2010 - 10:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I think the Buell designers were really smart - they intentionally designed the crank seal and the starter gasket that way so they start leaking at the same time to ensure your tranny always has the correct amount of lubrication....And for those of you who use the same type of oil in both holes, all you need to do is just keep adding oil in the tank. The additional benefit is you always have fresh oil in the system. Problem solved.
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Littlebuggles
Posted on Thursday, July 15, 2010 - 01:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I like your thinking, you know if he just installed a longer breather hose he could route it into his oil tank and keep a continuous flow, no need to even add fluid once the primary is full it will just run a constant loop.

...except for that starter leak...
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Kalali
Posted on Thursday, July 15, 2010 - 02:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Perfect...As for the starter leak, I recommend a "Buell Certified" sanitary napkin. I'm sure someone could come up with the correct part number...
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Buellistic
Posted on Thursday, July 15, 2010 - 06:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

BUELLers:

"WELL", how about a PVC Valve in the TRANSMISSION BREATHER hose and a oil/air separator ???

Run the breather hose vertical as high as possible with a BREATHER on the end ...

Put the PVC Valve in so the engine can suck the excess oil out of the transmission, "BUT" not blow it back into the transmission ...

The "K" MODELS(predessor of the SPORTSTER)
had such a valve in the left engine case and was very important because they had "DRY CLUTCH's" ...

DO NOT RECOMMEND UNLESS YOU RUN ENGINE OIL IN YOUR TRANSMISSION AS "i" DO !!!
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V74
Posted on Saturday, July 17, 2010 - 10:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

AFTER i had replaced the leaking crank shaft seal on my 99 M2 i had an idea that i posted on here and got several responses to,
if running same oil in engine as the primary/gearbox and with the seal leaking from the engine to the primary what about putting a free flowing in line oil filter on the end of the breather hose on the top of the gearbox,then from the filter run a hose to the top of the oil tank ???
this way you have a self feeding/scavenging oil system from engine to the oil tank via the primary/gearbox and because the hose is from the top of the gearbox it shouldn't contain to many contaminants which should then be picked up by the in line filter and you have less oil to cause drag on the crank in the crankcase and with increased oil capacity of the primary/gearbox better cooling of the oil,
comments/abuse welcome by people with more knowledge than me(not hard lol)
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