Removing Brake MC Reservoir - Alfa Romeo Bulletin Board & Forums

 
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post #1 of 4 (permalink) Old 02-23-2017, 06:44 AM Thread Starter
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Removing Brake MC Reservoir

Hi Group. New guy here, again.

I purchased a 74 Spider last summer that had been asleep since 1995. I have been going through the car (with the help of the BB) and have been replacing lines, fluids, filters, calipers, etc as needed to get the car into a safe running condition.

I was attempting to rebuild the brake MC. I have let it soak in WD-40 for 4 days and applied heat after to get the cylinder out with no luck. I have done this procedure three times and finally have decided to purchase a new MC.

The problem I am having is that I can't figure out how to get the reservoir off of the old reservoir off of the MC. The are no obvious nuts, bolts, or clips (like the clutch reservoir) that I can see. I tried to pull straight up on the reservoir but can feel resistance and do not want to damage the reservoir & seals since I am planning to reuse them.

Thanks.
Tony
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post #2 of 4 (permalink) Old 02-23-2017, 07:50 AM
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The reservoir pushes in to two rubber grommets. A good yank typically frees the reservoir. But, before you do that, take caution. The ports that come out of the bottom of the reservoir can break off. If it were me, I'd try a very sharp box cutter to try and carefully cut the grommet without cutting into the ports. Or, try to introduce some sort of lubricant between the grommet and the ports. I would try the lubricant route first.

Did you order new grommets for the new cylinder? Or, did it come with them?
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post #3 of 4 (permalink) Old 02-23-2017, 08:07 AM Thread Starter
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Brian,

Thanks for getting back to me and letting me know. My new MC has grommets already installed. I was really concerned about one (or both) of the ports getting broken off.

Coincidentally, I happened to read your "Rebuilding MC Tech Article" this morning before I put up my post. Great info there and your Round-Tail looks great. I plan to go back through your rebuild on our next cold weather day. With temps above 70 locally, it's a great time tho be in the garage.

Thanks again,
Tony
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post #4 of 4 (permalink) Old 03-01-2017, 06:57 AM
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When I was extracting the plastic reservoir from the brake master cylinder on my Series 3, I used one of those hard plastic trim pry tools that are typically used to pop door panels and dash board bezels off without damage. I placed the business end of the pry tool close to one of the two reservoir nipples and slowly but forcefully levered that one part way out of it's grommet, then moved to the other nipple and pried that one part way out. Eventually both were extricated with no damage to the reservoir nipples or MC grommets. It was helpful for me to search for and find some pictures of what the plastic reservoir nipples tips look like on the internet. That gave me a good idea of what I was working with, and the amount of stress I could apply without risking a tip snapping off. Best of luck.
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Last edited by Norseman50; 03-04-2017 at 09:38 AM.
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