1990 FLHTC rear master cylinder
Road Master
Joined: Sep 2006
Posts: 1,121
Likes: 6
From: Huntersville, NC
RE: 1990 FLHTC rear master cylinder
ORIGINAL: daven9113
Team Flash,
Rear brake master cyclinder is located on the right side bottom frame rail, between motor and tranny. Can't miss it.
dave
Team Flash,
Rear brake master cyclinder is located on the right side bottom frame rail, between motor and tranny. Can't miss it.
dave
Stage I
Joined: Jul 2013
Posts: 1
Likes: 0
From: Waukesha, WI
I have a 1990 FLHTC with a rear brake problem. When the bike is hot, and only then, I'm feeling a brake drag and what feels like a hard brake pedal. Initially I thought it might be the caliper hanging up by a cocked piston or something of that order, but that wouldn't seem to jibe with the "only when it's hot" part. My thinking is now the master cylinder at the foot pedal in that it catches engine heat and possibly something's going on there. This is all original equipment, and other than rear pads, no maintenance has ever been needed. I'm not one to just start changing parts till I get it right, so I'm wondering if anyone here has had a similar situation or has heard of one.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,198
Likes: 3,087
From: NW AR
Make sure the pedal is adjusted correctly. If it isn't, it can interfere with the fluid return.
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Joined: May 2010
Posts: 55
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My 94 was doing the same and it turned out to be the caliper and old parts on the rest of the system. The piston was cocking as you mentioned plus my lines were in very bad shape.
I had my guy replace it all but the resevoir and now I'm happier. New lines, caliper, even switch.
I am a preventive maintenance kind of guy plus I'm keeping the bike. I love my carb on my 1994 FLHTCU. EVO all the way :-)
I had my guy replace it all but the resevoir and now I'm happier. New lines, caliper, even switch.
I am a preventive maintenance kind of guy plus I'm keeping the bike. I love my carb on my 1994 FLHTCU. EVO all the way :-)
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Road Master
Joined: Jun 2009
Posts: 1,062
Likes: 18
From: Beautiful SW Missouri Ozark Mountain Country
Rebuild the caliper, master cylinder, flush the reservoir and install a new brake line. Fixed. I'm saying the brake line lining is swelling up and keeping the brake fluid from returning to the reservoir. Happens when the brake lines get old. I put a braided line on mine. Should last the rest of my life. All parts available from your local HD parts counter or Dennis Kirk.
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d-streetglidr
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Aug 8, 2013 06:22 AM
