Hydraulic Tank

[Wausau 911]

Still sorting the BJ7 out. My dual outlet tank leaks at the top cap and has been a continuing issue for some yrs. the seal seams in good order and the cap is fairly new, but I get leakage. No rust on tank lip. It is quite humid here, but I doubt this should be occurring. Anyone else have this issue?
thank you for all replies.

 

[British_Recovery]

There's a different seal available, that I'm currently using. Dorman HELP! Part # 42072 on line (Amazon) or Pep Boys auto stores, among others. I cut a small slit in the center section. This seal keeps the fluid in the reservoir, and I don't overfill it. Leave room for expansion. I was getting some fluid out onto the body work from expansion, so also made a loose-fitting cap out of a spray can lid, cut to go around the mounting bracket. Allow space for air to get in from below and drill a few holes on the side. Can't go anywhere with the hood closed.
Bob

 

[Brinkerhoff]

You must be overfilling it. I keep the levels only slightly higher than the inner (clutch) chamber. Mine has never leaked a drop in ten years.

 

[Duane_Rhynard]

Still sorting the BJ7 out. My dual outlet tank leaks at the top cap and has been a continuing issue for some yrs. the seal seams in good order and the cap is fairly new, but I get leakage. No rust on tank lip. It is quite humid here, but I doubt this should be occurring. Anyone else have this issue?
thank you for all replies.

Moss has a seal that theoretically solves this common issue. Part number 582-505, they have info on their website about it. I've purchased one but have not yet put it in service....

Their description:
"We also changed the cap gasket from a simple flat ring of rubber to a complete cover. (Fig 7). There are two reasons: First, we were aware of an annoying tendency for brake fluid to squirt up out through the vent in the cap. This is especially true of the Girling caps (and replacements) which have the two vent holes in line with each other. We off-set the vent hole on the inside with this in mind, but the "anti-splash" seal makes it impossible for fluid to escape. The second reason for using this type of seal is to limit the amount of atmospheric moisture that can get to the brake fluid. There is a tiny slit in the seal that will allow air pressure to equalize as needed, but the seal greatly reduces the exposure of brake fluid to moisture. This will effectively increase the life of conventional brake fluid, and help reduce the damage water can do. (For more information on this topic, see our website for the article on brake fluid). "

 

[Wausau 911]

Thx for the advice fellas, Dorman it is!
and no I don't overfill the tank, ever.

 

[Healeysince59]

That's a Chevy part but it's out of sight so no one will know. I've got them in all my LBCs. Be sure you make a small slit in it so the tank can breathe.

Marv J

 

[GregW]

Ironically, it was 9 years ago today we were talking about this part.https://www.britishcarforum.com/bcf...earance&p=71083&highlight=reservoir#post71083

 

[Randy Forbes]

Ironically, it was 9 years ago today we were talking about this part.https://www.britishcarforum.com/bcf...earance&p=71083&highlight=reservoir#post71083

Nice to see Dave Russel's signature; I wonder how he's doing (I know, I mean UP THERE...).

 

[GregW]

A man of Dave's character I can only imagine as doing well. I had saved the couple PM's of his I had, but unfortunately they were lost when the forum software was changed.