Wildguzzi.com
General Category => General Discussion => Topic started by: LeakyLogic on November 10, 2016, 08:10:26 PM
-
Just wanted to let others who may be curious know how I made out. I installed the timing cover oil seal on my Breva 1100 and it still leaked. There were two grooves in the crankshaft from the oil seal. The bike has 11k miles.
So I tore it apart again. This time I removed the timing cover too and used 1500 wet dry to smooth out any burrs. I cleaned the area, applied permatex sleeve retainer and gently tapped the sleeve on with a wood mallet. The sleeve part number was Sturdi Sleeve 99085.
In order to remove the installation flange on the sleeve, you must first use something to cut into the installation flange before installing. Then, after the sleeve is tapped into location flex the flange back and forth along the groove. Using needle nosed plyers, twist/roll the flange off like a sardine can. Be sure not to nick the sleeve. I used the 1500 grit again on the sleeve to be sure of a smooth surface. Cleaned and oiled it and the seal too.
After I got it back together, I took it out for a ride 24 hours later, because the permatex sleeve retainer needed time to fully cure. Everything is dry now. Time will tell how it holds up. The sleeve hardness should be better than the crankshaft.
I'll report back in due time for an update.
-
Nice fix, good luck with it. How did the seal scar the crank...?
Best,
Rob
-
There were two grooves in the crankshaft from the oil seal.
HUH?
-
I am the third owner, so I cannot say if it was a result of dirty oil or not. I got the bike in June and it leaked from there and from the oil pressure switch.
While doing some research before installation of the repair sleeve, I read something about how the dust lip is possibly more important than the sealing lip on the oil seal. I guess some contamination got inside and scored the crankshaft sealing surface from outside the altenator cover. Another possibility could be lack of lubrication on shaft and oil seal from the factory. The oil seal could harden without lubrication pretty fast. I sure hope the crank was heat hardened properly. A soft material hardness would certainly speed up wear.
The two grooves in the crankshaft were just barely felt with a fingernail. The 1500 grit did not remove them entirely. So I had to use the sleeve.
-
The two grooves on the crankshaft were caused by the two lips on the timing cover oil seal, where the oil seal sits and seals the timing cover.