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brake fluid reservoir appearance
- Thread starter nevets
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Keoke
Great Pumpkin
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Re: brake fluid reservoir appearance -up-date
/ubbthreads/images/graemlins/shocked.gif Yeah Kragan people are a bit HIGH it was about $5.72 at PepBoys and I thought that was a bit high but Help stuff is pricy. But a DIY oil change on the Healey is now $40.00 all top oil is no longer being sold at case price.---Keoke
/ubbthreads/images/graemlins/shocked.gif Yeah Kragan people are a bit HIGH it was about $5.72 at PepBoys and I thought that was a bit high but Help stuff is pricy. But a DIY oil change on the Healey is now $40.00 all top oil is no longer being sold at case price.---Keoke
AUSMHLY
Yoda
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Re: brake fluid reservoir appearance -up-date
Hi GregW, Dave Russel and Keoke.
Are you guys using the HELP # 42072 diaphram gasket?
Is it working out OK?
Wanted to get an update on this topic. I would like solve this same problem of the brake fluid reservoir paint issue. As always, thanks guys. Roger
Hi GregW, Dave Russel and Keoke.
Are you guys using the HELP # 42072 diaphram gasket?
Is it working out OK?
Wanted to get an update on this topic. I would like solve this same problem of the brake fluid reservoir paint issue. As always, thanks guys. Roger
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Re: brake fluid reservoir appearance -up-date
Hi Roger,
Yes, 42072 is the number that I am using. It fits into the lid a bit tightly at first, but once it is in & the cap screwed on it forms very well. Didn't need to trim any off the outside diameter. Since it takes up some space, don't expect to get more than a couple of threads engaged. which is ok. I wouldn't be without it at twice the price!
Hard to imagine that a part made for 1987 to 1994 GM would fit, but it does.
D
Hi Roger,
Yes, 42072 is the number that I am using. It fits into the lid a bit tightly at first, but once it is in & the cap screwed on it forms very well. Didn't need to trim any off the outside diameter. Since it takes up some space, don't expect to get more than a couple of threads engaged. which is ok. I wouldn't be without it at twice the price!
Hard to imagine that a part made for 1987 to 1994 GM would fit, but it does.
D
AUSMHLY
Yoda
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Re: brake fluid reservoir appearance -up-date
Hi Dave,
I appreciate your feedback. It seems one of the concerns is wheather or not a breathing hole is nessassary in the reservoir. Does this 42072 make a complete air tight seal? Is that a concern for the performance and safety of the break system? Being it used to have a small hole for the fluid to escape?
I'm assuming that there still needs to be a little air between the top of the fluid and the rubber seal. The reservoir still has the same amount of fluid as before? Or a little less because the seal takes up some space?
How many miles have you driven now, with this rubber seal?
Price is not a concern. As they say on the used car lot, I'm buried in this car.
Thanks Super Dave, for your time and expertise, Roger
Hi Dave,
I appreciate your feedback. It seems one of the concerns is wheather or not a breathing hole is nessassary in the reservoir. Does this 42072 make a complete air tight seal? Is that a concern for the performance and safety of the break system? Being it used to have a small hole for the fluid to escape?
I'm assuming that there still needs to be a little air between the top of the fluid and the rubber seal. The reservoir still has the same amount of fluid as before? Or a little less because the seal takes up some space?
How many miles have you driven now, with this rubber seal?
Price is not a concern. As they say on the used car lot, I'm buried in this car.
Thanks Super Dave, for your time and expertise, Roger
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Re: brake fluid reservoir appearance -up-date
Hi Roger,
The diaphram gasket is made to completely seal the fluid from outside air. As the fluid level raises or lowers, the diaphram flexes to follow the fluid level. The hole in the cap was originally to allow the fluid pressure in the can to equalize as needed. It is still needed to allow the diaphram to freely move (equalize pressure) with fluid level changes.
It doesn't really matter if there is space between the fluid & the diaphram. I never fill the can completely to the top anyway. Less chance of fluid slopping out when the lid is removed. I think I have about 1/4" space between the two.
I really have no idea how far the car has gone since I added this part. Far enough in varying altitudes & temperatures to be sure that it works well under all conditions. It will seal the cap from leaking & will keep moisture from contacting the fluid as the can breathes.
D
I believe that Greg originally posted this idea. I forgot to mention, the 42072 gasket has a tiny slit in the center, not sure why. I sealed this slit with a tiny dab of JB Weld. This way, the cap is totally sealed.
D
Hi Roger,
The diaphram gasket is made to completely seal the fluid from outside air. As the fluid level raises or lowers, the diaphram flexes to follow the fluid level. The hole in the cap was originally to allow the fluid pressure in the can to equalize as needed. It is still needed to allow the diaphram to freely move (equalize pressure) with fluid level changes.
It doesn't really matter if there is space between the fluid & the diaphram. I never fill the can completely to the top anyway. Less chance of fluid slopping out when the lid is removed. I think I have about 1/4" space between the two.
I really have no idea how far the car has gone since I added this part. Far enough in varying altitudes & temperatures to be sure that it works well under all conditions. It will seal the cap from leaking & will keep moisture from contacting the fluid as the can breathes.
D
I believe that Greg originally posted this idea. I forgot to mention, the 42072 gasket has a tiny slit in the center, not sure why. I sealed this slit with a tiny dab of JB Weld. This way, the cap is totally sealed.
D
txtr3
Member
Offline
Re: brake fluid reservoir appearance -up-date
Dave, as always great information. Sounds like a great solution.
It looks like my TR3A uses the same reservoir can as the Healeys, so I'm going to try the diaphragm part. I have brake fluid on the top of the can after just about every drive.
I bought the new can from Moss, and it has a black rubber-paint-looking finish that looked like it would hold up, but actually just wipes right off with brake fluid. I don't know, maybe it was just a temporary coating I was supposed to remove before using? Anyway, it looks better than the rusted thing that was on there, but I need something (like this diaphragm idea) to keep the new one from getting really ugly. The attached picture was taken when it was fairly new; all the black finish is gone from the top of the can now.
-Jiri
Dave, as always great information. Sounds like a great solution.
It looks like my TR3A uses the same reservoir can as the Healeys, so I'm going to try the diaphragm part. I have brake fluid on the top of the can after just about every drive.
I bought the new can from Moss, and it has a black rubber-paint-looking finish that looked like it would hold up, but actually just wipes right off with brake fluid. I don't know, maybe it was just a temporary coating I was supposed to remove before using? Anyway, it looks better than the rusted thing that was on there, but I need something (like this diaphragm idea) to keep the new one from getting really ugly. The attached picture was taken when it was fairly new; all the black finish is gone from the top of the can now.
-Jiri
