Author Topic: New front brake caliper seals  (Read 1379 times)

Offline JJ

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New front brake caliper seals
« on: May 05, 2022, 10:11:37 AM »
Replaced both sides on my 24-year old Centauro GT yesterday...A messy job, but necessary as the right caliper was leaking brake fluid on my newly painted chin spoiler! :wink:





Life Member: MGNOC L-772, AMA, HOG,
Village of Oak Creek, Arizona
Current bike: 2025 Moto Morini Calibro 700
Previous Guzzi's owned:
* '78 850 Le Mans
* '02 V11 Le Mans
* '93 SP1000-III
* '83 850 Le Mans III
* '98 V10 Centauro GT

Offline Scout63

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Re: New front brake caliper seals
« Reply #1 on: May 05, 2022, 09:45:27 PM »
Nice going JJ. Of all the fluids to get on my skin, brake fluid bothers me the most.
Ben Zehnder - Orleans, MA USA

Offline dxhall

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Re: New front brake caliper seals
« Reply #2 on: May 05, 2022, 10:36:58 PM »
Where did you get the rebuild kits?

Offline Canuck750

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Re: New front brake caliper seals
« Reply #3 on: May 05, 2022, 10:58:00 PM »
Nice going JJ. Of all the fluids to get on my skin, brake fluid bothers me the most.

thats a fact! I have been struggling with my 2009 Ford Ranger brakes, repeated bleeding after replacing the front calipers and the master cylinder, even with a vacum pump the brake pedal isn't good, mechanic friend says its the ABS control module, Saturday's job and more bleeding....
48 Guzzi Airone, 57 Guzzi Cardellino, 65 Benelli 200 sprite, 66 Aermacchi Sprint, 68 Gilera 106 SS, 72 Eldorado, 72 Benelli 180, 74 Guzzi 750S, 73 Laverda SF1, 74  Benelli 650S, 75 Ducati 860GT, 75 Moto Morini 3-1/2, 78 Moto Morinii 500

Offline lucky phil

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Re: New front brake caliper seals
« Reply #4 on: May 06, 2022, 12:20:41 AM »
thats a fact! I have been struggling with my 2009 Ford Ranger brakes, repeated bleeding after replacing the front calipers and the master cylinder, even with a vacum pump the brake pedal isn't good, mechanic friend says its the ABS control module, Saturday's job and more bleeding....

You will need to manipulate the ABS module to bleed it then. That usually requires access to the BCM or in some cases you can pull covers off the ABS module and manually manipulate the valves. The other way is a deserted road and a few braking cycles that kick the abs in.
BTW the vacuum pump method is pretty rubbish these days. I bought one of these and use it for the cars and bikes. Works very well and it's cheap. Pressure bleeding is the way to go.

https://www.motiveproducts.com/products/powerfill-pro-1-gallon-tank

Ciao
« Last Edit: May 06, 2022, 12:24:42 AM by lucky phil »
If you're not living on the edge you're taking up to much room.

Offline JJ

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Re: New front brake caliper seals
« Reply #5 on: May 06, 2022, 07:57:07 AM »
Where did you get the rebuild kits?

I just GOOGLED Brembo front brake caliper seal kit and this came up...



Life Member: MGNOC L-772, AMA, HOG,
Village of Oak Creek, Arizona
Current bike: 2025 Moto Morini Calibro 700
Previous Guzzi's owned:
* '78 850 Le Mans
* '02 V11 Le Mans
* '93 SP1000-III
* '83 850 Le Mans III
* '98 V10 Centauro GT

Offline JJ

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  • Location: Village of Oak Creek, Arizona
Re: New front brake caliper seals
« Reply #6 on: May 06, 2022, 07:58:38 AM »
Nice going JJ. Of all the fluids to get on my skin, brake fluid bothers me the most.

Yes...and WORST when brake fluid gets on freshly painted surfaces...like my chin spolier...it already "discolored" the clear coat...but "Oh Well... :rolleyes: :shocked: :huh:
Life Member: MGNOC L-772, AMA, HOG,
Village of Oak Creek, Arizona
Current bike: 2025 Moto Morini Calibro 700
Previous Guzzi's owned:
* '78 850 Le Mans
* '02 V11 Le Mans
* '93 SP1000-III
* '83 850 Le Mans III
* '98 V10 Centauro GT

Offline Canuck750

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Re: New front brake caliper seals
« Reply #7 on: May 06, 2022, 11:11:34 PM »
You will need to manipulate the ABS module to bleed it then. That usually requires access to the BCM or in some cases you can pull covers off the ABS module and manually manipulate the valves. The other way is a deserted road and a few braking cycles that kick the abs in.
BTW the vacuum pump method is pretty rubbish these days. I bought one of these and use it for the cars and bikes. Works very well and it's cheap. Pressure bleeding is the way to go.

https://www.motiveproducts.com/products/powerfill-pro-1-gallon-tank

Ciao

I tried buying one of those pressure units but could only find a decent price on Amazon with the Ford reservoir cap but it was three weeks plus to get it and I need this done now so I used a Mytivac pump, with a bit of grease on the nipple to seal air being drawn into the hose it’s a just ok. Selling my Ford so just can’t justify the pressure bottle but taking the truck to a friends shop Monday to sort the ABS problem.
48 Guzzi Airone, 57 Guzzi Cardellino, 65 Benelli 200 sprite, 66 Aermacchi Sprint, 68 Gilera 106 SS, 72 Eldorado, 72 Benelli 180, 74 Guzzi 750S, 73 Laverda SF1, 74  Benelli 650S, 75 Ducati 860GT, 75 Moto Morini 3-1/2, 78 Moto Morinii 500

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