master cylinder leak

Reply Subscribe

Thread Tools

Search this Thread

Nov 16, 2014 | 07:55 PM

#11

wideopen4life

Tourer

Joined: May 2009

Posts: 419

Likes: 0

These caps are prone to leak if over tightened. It does not take much pressure on the rubber seal to keep fluid inside.

Sep 11, 2015 | 12:30 AM

#12

Gunphreek

Stage II

Joined: Jan 2015

Posts: 2

Likes: 0

From: Tampa Bay

Quote:

Originally Posted by kerplunk38

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.

I have a '14 FLHXS. I have had both recalls performed. I have had mine in to my local dealer 3 times for leaking clutch and front master cylinders. I even called H-D up in Milwaukee. Seems to be particularly bad in warm/humid climates. My dealer says they have replaced the caps and gaskets the last 2 times. I just took the caps off because they were both leaking again. I cleaned the caps and gaskets with Dawn dish soap. They are literally squeaky clean. Hopefully this fixes it!

Sep 11, 2015 | 03:45 PM

#13

rideflhr

Road Captain

Joined: Sep 2005

Posts: 725

Likes: 33

From: East, TN

If you ever remove the caps and check fluid they will usually leak.Buy the expensive new cap and don't put as much fluid in and they are ok. They suck.

Sep 11, 2015 | 04:11 PM

#14

Hey Man

Seasoned HDF Member

Joined: Jun 2015

Posts: 10,276

Likes: 7,756

From: West Central FL

Sometimes aftermarket covers aren't made truly flat. That can cause leaks no matter how you tighten them. Lay the cover on a piece of glass. If it rocks or wobbles it isn't flat. It can be fixed though.