I think I might finally have it? I've tried everything to get my weeping master cylinder cover to stop leaking and shooting little droplets of DOT 4 back on my bikes paint when in the wind. I disassemble it, clean up the cover, lip and gasket with soap and water and alcohol, reassemble and ride for a few weeks and do it all over again. I have the third revision cover and gasket and the new torque specs of 6 inch pounds down from 12. I've used a crappy little beat up torque limiting screwdriver because its all I could find that went down to what I thought was 6 inch pounds. Last week I finally broke down and went to Seekonk Precision tools and bought a high quality, guaranteed certificate calibrated 0 - 40 inch pound torque limiting screwdriver and I also bought another new gasket. Before I went through the whole cleaning and new gasket ritual, I checked the torque with the new driver. I was shocked...6 inch pounds on the little screws and rubber gasket is a lot more than I would have ever suspected! The old torque driver must have been in inch oz not inch pound. I very carefully torqued to 6 inch pounds and it was much tighter and compressed that gasket much further than I had ever done. It obviously wasn't to the stops, but it surprised me at how much tighter 6 inch pounds is on those tiny screws and a rubber gasket. I rocked the bars back and forth and squeezed the brake lever etc. looks good. I guess the first ride will be the tell all....Those of you who think you can feel 6 inch pounds and your just snugging those screws up would be surprised...Its tighter than you may realize.

 

I have always just snugged down the cover with a good old fashion phillips head screwdriver and have never had a leak. Torque wrenches have their place but not on those tiny screws. I'm glad you got your cover to stop leaking though.

 

I had the same issue. I picked up the third revision gasket with a new cover as well and so far so good. The third revision does not protrude under the cover like the previous version so I was skeptical, but his revision seems to work well so far, time will tell. I was told if the gasket is ever over-torqued, you might as well toss it.

 

That's why I broke down and spent the money on a high quality torque screwdriver. If its designed to work properly at 6-8 inch pounds, that's what I want to try torqueing it to and know its right. I make it a point to look at other covers and I noticed that more than 1/2 had weeping around the edge of the gasket that some may just not notice. I'll tell ya though, in the wind those little unnoticed droplets of DOT 4 will do a number on that pretty tank and saddle bag top!

 

I think if the MOCO used four screws rather than two to attach the cover it could help solve the problem.

 

After ruining way too many covers, I now put a light coat of black RTV all the way around the cover and seal except for the weep holes.

No more problems.

lp

 

I think your right there. Or they could use the round screw on style like the Roland Sands after market unit?

 

Slotted stainless steel screws provide clean grip across the head and don't corrode. A drop of black varnish is easier to remove from the slot than from the cross of the Phillips head.

 

I went chrome cover for that reason. Were you able to buy just the gasket? MOCO only sells lid and gasket as a set now. I snug down gently with a Phillips just prior to seeing the gasket start to squish out then back off a tad.

 

Your right Dawg, they only sell as a kit from what I'm told. However, I asked Wilkins if I could buy just a gasket and Mike went out back and found one and sold it to me. The baggie it came in had the following number on it..42857-06B. I don't know if that was just a baggie they had laying around or if that is actually the gasket number?