master cylinder leak
master cylinder leak
I put a rsd front master cylinder cap on my 09 train. I followed the instructions and a two days later I noticed it was leaking break fluid all over my bars and destroyed them. I bought a new gasket hoping it would stop and it still leaks. Anyone else have a problem like this? Or any thoughts how how to stop it from leaking and ruining my new apes?
I'd have to double check but I am using the recommended harley fluid which I believe is dot 5. The bars just need to be re powder coated is all because there are streaks of fluid running down them. I ordered another gasket and if it doesn't do the trick I'll put the stock cover back on. Ive been told it may be a slighty defected part also.
Stellar HDF Member
Joined: May 2010
Posts: 3,453
Likes: 249
Don't know about RSD but many people have this trouble with the Harley cylinder caps, me included, had a slight leak on both of mine Which caused a small area of paint to bubble, changed the covers and they've been ok ever since, suspect as Rodzilla6 says over tightening is the cause, don't know why Harleys don't copy the Metric bikes and fit round cylinders with screw down covers, never known them to leak.
Thanks for the input, I would bet I was over tighting it. I figured the tighter it was bolted down the less likely it would be to leak. I'll try just snug with the new gasket and if it fails back to the stock cap I guess.
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Novice
Joined: Jul 2014
Posts: 18
Likes: 0
From: Illinois
This is the only way I've ever gotten mine to stop leaking:
1. Make sure bike is 100% upright and handlebars are straight and remove cap.
2. Thoroughly wipe down the entire gasket. Needs to be 100% dry when you re-install it.
3. Wipe all edges of the reservoir, carefully
4. Replace the cap and do not over tighten.
Lots of people do not follow step 2 and it results in leaks.
1. Make sure bike is 100% upright and handlebars are straight and remove cap.
2. Thoroughly wipe down the entire gasket. Needs to be 100% dry when you re-install it.
3. Wipe all edges of the reservoir, carefully
4. Replace the cap and do not over tighten.
Lots of people do not follow step 2 and it results in leaks.
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This is the only way I've ever gotten mine to stop leaking:
1. Make sure bike is 100% upright and handlebars are straight and remove cap.
2. Thoroughly wipe down the entire gasket. Needs to be 100% dry when you re-install it.
3. Wipe all edges of the reservoir, carefully
4. Replace the cap and do not over tighten.
Lots of people do not follow step 2 and it results in leaks.
1. Make sure bike is 100% upright and handlebars are straight and remove cap.
2. Thoroughly wipe down the entire gasket. Needs to be 100% dry when you re-install it.
3. Wipe all edges of the reservoir, carefully
4. Replace the cap and do not over tighten.
Lots of people do not follow step 2 and it results in leaks.
I really appreciate the input. The new gasket should be here in a few days and I will definitely use your advice. I'd hate not to use the RSD cap I bought for it.
This is the only way I've ever gotten mine to stop leaking:
1. Make sure bike is 100% upright and handlebars are straight and remove cap.
2. Thoroughly wipe down the entire gasket. Needs to be 100% dry when you re-install it.
3. Wipe all edges of the reservoir, carefully
4. Replace the cap and do not over tighten.
Lots of people do not follow step 2 and it results in leaks.
1. Make sure bike is 100% upright and handlebars are straight and remove cap.
2. Thoroughly wipe down the entire gasket. Needs to be 100% dry when you re-install it.
3. Wipe all edges of the reservoir, carefully
4. Replace the cap and do not over tighten.
Lots of people do not follow step 2 and it results in leaks.
Sorry for delayed post but I followed your instructions step by step and no more leaks! Thanks for the help