What happenrd to my brakes?

Oatmeal

Well travelled
Stuck my bike in storage for the winter (don't much like riding in snow and freezing temps) and brought it out today only to find out I had no rear brake!
Fluid was still clean and at the full mark so, I bled it with fresh DOT 4 synthetic and did the front as well and all is well, but how did this happen?
There was a crap load of air in the rear system and the front was a bit spongy as well!
Characteristic of ABS?
Anybody else experience this?
Hans
 

fog rider

Well travelled
Location
Alberta
Definitely not normal. You might want to check the torque on all the banjo bolts and look for leaks before riding.
 

Oatmeal

Well travelled
Okay,
Just looked up the recall info.
No, no corrosion just no pedal, was just pumping air.
After bleeding with fresh, quality DOT 4 fluid all seems good.
Just a mystery.
Hans
 

fog rider

Well travelled
Location
Alberta
Update to my original comment:

I took my GT out for the first ride of the year, and lo-and-behold, my rear brakes were mush. I couldn't even lock up the rear brakes on gravel.

I bled the brakes. The first 2 reservoir fills produced no air in the bleeder hose, but on the third reservoir fill, a bunch of air came out of the rear caliper. It took a couple of more reservoir fills before all the air was removed.

My theory:

The ABS module sits lower than the rear brake. Perhaps the ABS module wasn't fully bled at the factory? Air trapped in the ABS module might gravitate upwards into the rear brake system over time.

As a side note, here's an old mechanics trick. After you're done bleeding the system, fully compress the brake pedal/lever with a bungy cord and let it sit for a minimum of a few hours. Your brakes will feel rock solid.

thumbnail_20220602_105727.jpg
 
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Morgan60

Well travelled
Location
NW USA
Caliper recall?
First I've heard of it?
2019, rear caliper....no leaks and level was fine.
Hans
Yes you are under the recall. Take your bike to your dealer for new all calipers and new brake pads.

I have a 2019 Continental GT. My dealer did my bike and the said there is a special was to bleed the back brakes.
 

Oatmeal

Well travelled
Update to my original comment:

I took my GT out for the first ride of the year, and lo-and-behold, my rear brakes were mush. I couldn't even lock up the rear brakes on gravel.

I bled the brakes. The first 2 reservoir fills produced no air in the bleeder hose, but on the third reservoir fill, a bunch of air came out of the rear caliper. It took a couple of more reservoir fills before all the air was removed.

My theory:

The ABS module sits lower than the rear brake. Perhaps the ABS module wasn't fully bled at the factory? Air trapped in the ABS module might gravitate upwards into the rear brake system over time.

As a side note, here's an old mechanics trick. After you're done bleeding the system, fully compress the brake pedal/lever with a bungy cord and let it sit for a minimum of a few hours. Your brakes will feel rock solid.

View attachment 5355
I think you might be right.
I read somewhere else, can't remember where, where somebody was complaining about the poor quality of Indian fluids (oil, brake....).....might have been on YouTube?
Anyway, all's well now, flushed both front and rear with quality Valvoline DOT 4 synthetic.
My bike spent the winter in storage where it got down to below zero a few times, maybe had something to do with it?
Hans
 

Oatmeal

Well travelled
Yes you are under the recall. Take your bike to your dealer for new all calipers and new brake pads.

I have a 2019 Continental GT. My dealer did my bike and the said there is a special was to bleed the back brakes.
I think it'll be okay now besides, the nearest dealer is about 8hrs away since I retired and moved 😳
Hans
 

Morgan60

Well travelled
Location
NW USA
You no longer live in Cedar City?

If you don’t live around salt air like the coast or around the salt flats you should be fine. My brakes were just fine but my dealer insisted I have the done.
 
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