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driveline boot clamp positions

H

Hoskens

Just got it firing!
Joined
Apr 16, 2022
Messages
2
Location
Lebanon, MO 65536
My mechanic recently did some transmission work on my 2007 California Special. After a 30 mile ride I noticed driveline oil leaking out of the driveline boot. The mechanic evidently did not get the boot pulled up and over the transmission housing before clamping. I took the motorcycle back and he slipped the boot back on and tightend the clamp but after a closer look at home I noticed that the clamp appeared to be upside down (tightening screw could only be accessed through "V" in frame and clamp not positioned far enough forward at top of boot). Does anyone have a picture of that area to show the positioning of the clamps on the boots?
 
There really isn't a right or wrong way to use a boot clamp. I position them where there is the most accesibility. That's what dictates their position in my workshop.

That being said, there should be ZERO oil inside of that boot! It is not there to keep oil in, but rather dirt and debris, out of the U-joint.
If it indeed has oil in it, you have a serious problem in your transmission output shaft seal that needs to be rectified ASAP.

IMG 7487

IMG 7485
 
Scott,
Thanks for the reply. I wasn't too concerned with the oil in the boot other than the leak (my old '75 R90/6 has oil inside of the boot), but now it looks like another trip back to the shop.

Thanks You!
 
Sorry for the bad news. If oil is getting into the inside of the boot, then the seal on the output shaft is leaking and if it goes out badly, then the oil from the gearbox can dump out of the gearbox and into that boot.

It won't hurt the boot, but it will hurt the gearbox as the oil will not be inside of the gearbox anymore!

The output shaft seal is #2 in the diagram below. The second image shows you the drive shaft u-joint at 12 that is protected by the boot. It's a dust, oil, dirt, and water protector, not to keep oil in there. There should be no oil. Grease in the u-joint, yes, oil no.

The bottom picture is the actual seal. There are a sealing lip(s) and a garter spring for tension. If it is leaking, it will only get worse and worse until total failure, which can be very bad for your gearbox health. Get it fixed please. You will be glad you did.

Good Luck!

Screen Shot 2022 04 16 at 124743 PM

Screen Shot 2022 04 16 at 124219 PM

Screen Shot 2022 04 16 at 124822 PM
 
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Carefully inspect the speedometer drive ring the seal rides on. At one time Guzzi used very rough ones and I would polish them up before I would use them. Roughness on that ring can eat the seal. It doesn't show in the gearbox illustration as it is part of the speedometer system.
 
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