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Little sealing problem help needed
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Stroller
Posted 2020-12-31 5:52 PM (#607296)
Subject: Little sealing problem help needed


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Hey there folks. I got a bit of problem, ok big problem. My '56 Imperial has this goofy little brake fluid pot sitting on a perch out to the side of the master cylinder. The little pot has a hole of 5/8" and it is 1/8" thick. It sits on a 1/8" pipe thread fitting. The nut that tightens it down is a little rectangle with threads in the middle. I can put a washer on the pipe threads to smash the gasket between. Problem is where on earth can I find such a screwy little rascal?

This little tank sits off to the side of the MC supplying fluid. I reckon it was put there because it is flat out impossible to take the MC top off without taking loose from fire wall. The nut at the top of the MC is about 1/2" from the bottom of the booster. It just sits out there at the end of tube.

I would appreciate any help in where to find something like this. All the grommets I have seen online none give dimensions.

By the way lets hope the New Year will be somehow better than this one. Happy New year everyone!!!
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56D500boy
Posted 2020-12-31 6:25 PM (#607298 - in reply to #607296)
Subject: RE: Little sealing problem help needed



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A photo would help us help you. It sounds like something aftermarket (or Imperial specific). This is the "normal" 56 Chrysler arrangement (according to the FSM):



Edited by 56D500boy 2020-12-31 6:33 PM




(56ChryslerPowerBrakeSystemArrangement.jpg)



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Attachments 56ChryslerPowerBrakeSystemArrangement.jpg (94KB - 230 downloads)
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Stroller
Posted 2021-01-01 10:32 AM (#607306 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Hey D I have no idea as I have never seen this thing on any other. But this is a C70 Crown Royal. The master cylinder cap has a fitting stamped into it to have the pipe go into. I have tried to take a picture of it but can't get it down to the size. Here is a link on the forum of picture of this thing I did awhile back. I hope it works.
http://www.forwardlook.net/forums/forums/thread-view.asp?tid=69960&...
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56D500boy
Posted 2021-01-01 11:49 AM (#607308 - in reply to #607306)
Subject: Re: Little sealing problem help needed



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So this (below). Where is the sealing issue? At this remote reservoir or at the cap under the booster can?

One of the first posts I made on the this forum was asking how to fill the OE MC reservoir so I understand why somebody "injineered" a remote reservoir with what looks like a modern Power Steering reservoir.



REFERENCE: http://www.forwardlook.net/forums/forums/thread-view.asp?tid=63686&...

Yours:



Edited by 56D500boy 2021-01-01 11:50 AM
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Stroller
Posted 2021-01-01 2:35 PM (#607311 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Man I can not get a pic to down size enough to show what the cap looks like. But even the darn cap looks different than even yours. It is flat with the raised portion for the tube to go into. My problem is that little darn res sitting on the fitting.
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Stroller
Posted 2021-01-01 3:15 PM (#607315 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Ok I got a pic of the MC down to 14kb but all it loads is a blank page.
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56D500boy
Posted 2021-01-01 4:38 PM (#607316 - in reply to #607315)
Subject: Re: Little sealing problem help needed



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Stroller - 2021-01-01 12:15 PM
Ok I got a pic of the MC down to 14kb but all it loads is a blank page.


Jerry: Check your PM here for an message from me. Send me the full sized photo and I will resize and post it on your behalf.

I want to help you figure this out.

We can deal with the photo uploading issue later.

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Stroller
Posted 2021-01-01 4:46 PM (#607317 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Thank you so very much mucho grandimoso apprecited !!
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Stroller
Posted 2021-01-01 4:54 PM (#607318 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Email on the way. It is not the down sized pic. You'll see what I mean about I don't believe this crazy thing is aftermarket.
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56D500boy
Posted 2021-01-01 6:27 PM (#607319 - in reply to #607317)
Subject: Re: Little sealing problem help needed



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Stroller - 2021-01-01 1:46 PM
Thank you so very much mucho grandimoso apprecited !!


Check your email Jerry. You need to send at least two more photos. Don't edit/resize them. I will do that.

Here is the first one you sent. Maybe someone will recognize what you have there and we can start to figure out a solution (I am guessing you need a new gasket under that cap).





(JerryFStrollersRemoteMCReservoir_1.jpg)



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Attachments JerryFStrollersRemoteMCReservoir_1.jpg (156KB - 219 downloads)
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56D500boy
Posted 2021-01-01 8:44 PM (#607320 - in reply to #607319)
Subject: Re: Little sealing problem help needed



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56D500boy - 2021-01-01 3:27 PM
Check your email Jerry. You need to send at least two more photos. Don't edit/resize them. I will do that.
Here is the first one you sent. Maybe someone will recognize what you have there and we can start to figure out a solution (I am guessing you need a new gasket under that cap).


While we wait for more info or somebody else to recognize Jerry's remote filler system, here is a crude attempt at a design for a remote filler system. I've probably got the elevation of the remote reservoir wrong because I am relying on a siphon effect which might not happen. I have the feeling that Jerry's remote reservoir is higher and that the contents of the MC are under slight pressure from the 3 or so inches of pressure head and that the leak is the flat MC cover gasket or the O-ring where the fill tube enters the flat MC cover.

Edited by 56D500boy 2021-01-01 8:51 PM




(AQuickAttemptAtDesigningARemoteMCReservoirForA56DodgePowerBrakeMC_small.jpg)



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Attachments AQuickAttemptAtDesigningARemoteMCReservoirForA56DodgePowerBrakeMC_small.jpg (131KB - 225 downloads)
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ronbo97
Posted 2021-01-01 9:58 PM (#607323 - in reply to #607320)
Subject: Re: Little sealing problem help needed


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I never understood why people have to invent such complex, problematic solutions when the easiest way to fill the m/c is to use a small funnel with a flexible hose attached to the bottom. I bought one at Pep Boys for under $10.

Ron

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1960fury
Posted 2021-01-02 9:40 AM (#607329 - in reply to #607323)
Subject: Re: Little sealing problem help needed



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ronbo97 - 2021-01-01 9:58 PM

I never understood why people have to invent such complex, problematic solutions when the easiest way to fill the m/c is to use a small funnel with a flexible hose attached to the bottom. I bought one at Pep Boys for under $10.

Ron



Yes, unbelievable. Just once every 12 to 24 month and it isn't much more difficult with a funnel and a hose. It is not that you are supposed to fill the MC up regularly, as there shouldn't be any leaks.
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Stroller
Posted 2021-01-02 12:20 PM (#607331 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Ok the MC is a tad juicy because of the fluid leaking down the line. The pipe in the pic is tilted up very slightly. When I got the car many years ago the OE seal was leather. The cap on the little bottle has no imprints other than the Chrysler pentastar. The tube goes straight into the cap with a flare on the on the end to keep it in. It will turn a 360 and fluid doesn't leak from there. The nut that holds the cap on is about 1/2" under the booster. What you don't see in the access is the tunnel of hoses I took the picture through because of the hyrdoboost. The hole in the bottom of the little tank is 5/8" diameter, thickness is 1/8" sits on the 1/8" pipe fitting which is 3/8" wide.

What I am honestly starting to wonder if this thing was some crazy idea someone had back in the 50's to deal with the topping off aspect. I'd expect something like from maybe Popular Mechanics or JC Whitney or something. The stamped writing on the top of the MC cap is just "use only approved Dot 3 brake fluid any other may cause damage or failure type stuff", with patent pending. I thought finding the fuel pump for the heater was a nightmare. Maybe I'll look for the stud mount motorcycle res or a clutch slave cylinder that will fit the bill.

56D thank you sir very much appreciated.
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56D500boy
Posted 2021-01-02 3:10 PM (#607335 - in reply to #607331)
Subject: Re: Little sealing problem help needed



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Okay. The Chrysler Pentastar symbol is the big clue that this set-up is aftermarket or a home handyman special. The Pentastar wasn't even used until 1962.

REFERENCE: https://www.freep.com/story/money/cars/chrysler/2014/11/21/fiat-chry...

On that basis, I think you have free reign to to fix/modify/replace your existing system with something newer and less leaky. It's not a 1956 Imperial OE thing.

I either that or disassemble what you have and find appropriate seals that are compatible with DOT 3 (Neoprene? Viton?)

This Wildwood remote reservoir might be the ticket (??)

https://www.ebay.ca/itm/Wilwood-260-11098-Remote-Master-Cylinder-Res...



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Stroller
Posted 2021-01-02 3:35 PM (#607337 - in reply to #607296)
Subject: Re: Little sealing problem help needed


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Yeppers I don't think it be factory either. I tried taking the cap from the old mc of my '60 fury, both single bowl and ya can't get the blasted thing on under the booster. Sits up too high. The space between on your Desoto sure would be nice. Me thinking might have to pull the booster and put on a different master. Heck maybe Ronco might have something lol. Had better fights than this.
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