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Leaky brake cylinder
Posted: Thu Dec 26, 2024 4:41 pm
by PMNorris
All,
My brake cylinder (70T) appears to be leaking slightly from the 2 entry points at the top of the cylinder. Unlike the hoses, the 2 at the top don't appear to have threaded hoses. I might be wrong here of course, but there's not an obvious thread. Any ideas how to fix this? Is the brake cylinder serviceable, or do I need to buy a new one?
Many thanks
Paul
Re: Leaky brake cylinder
Posted: Thu Dec 26, 2024 4:48 pm
by jwhillracer
No, they are not threaded joints , just a push fit in the rubber connectors. The metal pipes have a swaged rib on them, check that they are pushed right in, you ought to feel a slight bump as they go fully in to place. If the leak still persists, then change the rubber connectors. There is very little pressure in the fluid at that point, only the head pressure from the reservoir just above.
JW
Re: Leaky brake cylinder
Posted: Thu Dec 26, 2024 5:46 pm
by PMNorris
jwhillracer wrote: ↑Thu Dec 26, 2024 4:48 pm
No, they are not threaded joints , just a push fit in the rubber connectors. The metal pipes have a swaged rib on them, check that they are pushed right in, you ought to feel a slight bump as they go fully in to place. If the leak still persists, then change the rubber connectors. There is very little pressure in the fluid at that point, only the head pressure from the reservoir just above.
JW
Many thanks, I'll give that a go.
Re: Leaky brake cylinder
Posted: Tue Dec 31, 2024 9:30 am
by PMNorris
I need parts 21 & 22. Its not clear if these are 999.702.076.50, 999.702.065.50. The grommet could be part 911.355.922.00, but this appears to be for a later car.
Anyone know for sure?
Many thanks
Paul
Re: Leaky brake cylinder
Posted: Tue Dec 31, 2024 2:53 pm
by T911UK
I suspect you need 2 of 999 702 180 40 £2.82 from your local OPC
Re: Leaky brake cylinder
Posted: Fri Jan 03, 2025 9:57 am
by PMNorris
Many thanks, I have now ordered the parts I need.