Drum Brakes!

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Cruiser_Nerd said:
Don't give up yet Steve! Don't go to the dark side! :eek:
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I guess it was all those years of following Cruiserman through the scariest passages of the Arizona desert. It's his fault that I'm once again being lured toward the Dark Side. :o I'll do my best to resist, Obie Nerd.
 
Cruiser_Nerd said:
(And if you're thinking about it, the biggest advantage would be a dual circuit cylinder for safety).
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Actually, that was my primary incentive. You really think a thinner retaining washer will do the trick for the time being? And that won't affect the integrity of the system at all??


(You really wrapped your brake lines with foil insulation? Did that stop the 'voices' from coming?)
 
Question: Is the brake line coming off the M/C supposed to be copper or steel? :confused:

Mine is copper (a PO 'custom mod' perhaps?), and it's getting hot as hell compared to the steel brake line that continues from the T-junction box. Wonder if that's what's heating up and expanding my brake fluid.
 
All the brake lines were copper......believe it or not. :eek: They had a cloth fabric jacket over them.

Steve, I really do think it's the same problem, the MC piston isn't retracting all the way. If you're worried about using a thinner washer you can turn down the end of the piston instead. But I would try the thinner washer first just to be sure you've got the same issue. You can make one with a piece of sheet metal and tin snips, just to try it. :)
 
Cruiser_Nerd said:
But I would try the thinner washer first just to be sure you've got the same issue.
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How much thinner are we talking here? How much overall length did you have to take off, Jim?
 
I'd have to measure.....think I ended up with a washer about 1/16" thick? :doh:
 
While removing a master cylinder today I found a spacer between the cylinder and firewall, 'bout 1/8" thick, in the shape of the cylinder mounting surface, three mounting holes and all...only one I've seen, is it the parts breakdown? Don't think it would keep the brakes on, mabe just helps the cylinder clear the sheet metal?

Glad I don't have to worry about mine running, sounds like a pain!
 
Yep, mine had that too......maybe they had to use up bolts with too much shoulder. ;)

Nice avatar Phil, did you really stack those up like cordwood? :D
 
Cruiser_Nerd said:
Yep, mine had that too......maybe they had to use up bolts with too much shoulder. ;)

Nice avatar Phil, did you really stack those up like cordwood? :D
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More like books...the emblems are back inside. Was thinking about doing something to keep with the bib theme but they don't stack too well...
 
An owner of a '59 soft-top FJ25 in Nashville said this is what he replaced his stock wheel cylinders with. Said it was a direct bolt-in and his brakes have been perfect ever since. Could he be speaking the truth??
WheelCylinder.webp
 
Landcruisersteve said:
An owner of a '59 soft-top FJ25 in Nashville said this is what he replaced his stock wheel cylinders with. Said it was a direct bolt-in and his brakes have been perfect ever since. Could he be speaking the truth??
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Maybe, but I won't believe it until he comes here and posts a picture of his 25. :D

As long as the bore is the same and the holes line up. Pretty unlikely it will have the same metric thread on the inlet piping so your going to have to fab some brake line fittings or hoses, so find out what he did for that. Also keep in mind that the big hole, not the two bolts, is what keeps the whole thing from moving while braking, so make sure that fits the backing plate.
 
D'oh, just saw the second picture. You'll have to adapt the piston ends, the 25 is set up for a rod, not bearing direct on the shoes like those.
P5140019.webp
 
According to him, it's the single style wheel cylinder for an '83 FJ40 where he said he replaced the forked piston with the 25's rod style piston.

And, that should make the inlet pipe threading metric, no?
081C-02.gif
coolfj40_1864_9539.webp
 
Cruiser_Nerd said:
Maybe, but I won't believe it until he comes here and posts a picture of his 25. :D
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It was my mechanic buddy (who's been going crazy along with me with this brake problem) who saw this guy's 25 at an auto show in Nashville this weekend. Said it was an in-progress resoration project of an all stock '59 green soft-top. Any idea who he might be??
 
Landcruisersteve said:
Said it was an in-progress resoration project of an all stock '59 green soft-top. Any idea who he might be??
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Nope, can't think of anyone, hope he got his info, or pointed him this way. :)

Well if he swapped pistons, that answers the bore question, and the tapping for the fitting could be the same........the hole in the backing plate is round, I can measure one for you since I have a few around.
 
foxfab said:
Hmm, I hope this works. I wasn't looking forward to $80 rebuilds on each wheel cylinder...
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Me, too. I'll probably let you know by this weekend if it's a go or not. :rolleyes:

BTW Mike, I see you're signed up for Rig Of The Week in December. Are you doing it on your 25 or 45?
 
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