Create an account Home  ·  ·  Forums  ·  ·  Articles  ·  ·  Downloads  ·  ·  Photo Gallery  
Login
Nickname

Password

Don't have an account yet? You can create one here.

Navigation
· Home
· Article Archive
· Article Submit
· Downloads
· FAQ
· Forums
· Members List
· Photo Gallery
· Private Messages
· Web Links
· Your Account

Search Articles



Forums

Wiper motor...which is the correct one?
Lead additive, one more question.
M31C mount with or without replica weapon
Backfire and Hesitation
Wanted: Steering column and shaft for M38-1952, or late CJ2A
2024 CT. MILITARY VEHICLE SHOW AND FLEA MARKET- JUNE 15,2024
Brake Line
How to link full size photos in posts
Clutch release bearing support cast tab for return spring
T90 case replacement required?

Willys M Jeeps Forums


willysmjeeps.com :: View topic - Brake Master Cylinder Mounted to Firewall
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Brake Master Cylinder Mounted to Firewall

 
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base
View previous topic :: View next topic  
Author Message
CapnDan
Member


Joined: Feb 24, 2009
Posts: 43
Location: Victoria,Texas

PostPosted: Mon Mar 20, 2023 1:19 pm    Post subject: Brake Master Cylinder Mounted to Firewall Reply with quote

I am looking at installing a dual reservoir master cylinder on my 1954 M38A1. I purchased a kit from rp 4wd about 5 years ago and have never installed it. Back about 10 years ago there was a discussion about dual reservoirs where member vuldub said he had upgraded to a master cylinder mounted to the firewall. Does anyone know how he was able to mount a master cylinder to firewall? Could anyone share how you did it, with a picture? Looking at my 54 M38A1 I don't see enough flat area above brake pedal to mount it. The kit calls for installing the supplied Wilwood cylinder mounted to the inside of the frame with a bracket that requires drilling holes in frame. Wilwood has both firewall and floor mounted pedals, but the firewall does not have enough flat area to mount a through the firewall pedal and master cylinder.

Ref prior subject thread: Dual reservoir master.
_________________
Danny L. Harris
aka Bubba
1954 M38A1
Back to top
View user's profile Send private message Send e-mail
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Mon Mar 20, 2023 2:31 pm    Post subject: Reply with quote

Here's a few links to folks that have been there, done that:

https://forums.g503.com/viewtopic.php?t=181801

http://earlycj5.com/xf_cj5/index.php?threads/144432/#post-1604134

https://www.jamcosuspension.com/product/universal-firewall-mount-power-brake-conversion-kit-pbbufw

As I recall there is quite a bit of room on the M38A1 firewall with the F134 engine for swinging pedals and a firewall mounted master cylinder.


_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
CapnDan
Member


Joined: Feb 24, 2009
Posts: 43
Location: Victoria,Texas

PostPosted: Mon Mar 20, 2023 6:25 pm    Post subject: Reply with quote



See picture above, brake pedal comes thru upward angled part of floor board almost directly in line with bend in firewall (recessed area to clear engine), therefore there is no flat area large enough for master cylinder support. You would need a bracket or plate to extend in toward engine past bend to mount to, and cylinder would be very close to engine just above exhaust manifold.
_________________
Danny L. Harris
aka Bubba
1954 M38A1
Back to top
View user's profile Send private message Send e-mail
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Tue Mar 21, 2023 1:02 am    Post subject: Reply with quote

There are several ways used to overcome the offset needed. Plates and modified offsetting brackets are often used. It has been done on many early jeeps. Most of them use a reinforcing plate across the firewall while relocating the wiring harness firewall hole and plate further to the driver's left. Offsetting bellcranks and brackets is not that difficult.


_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001 phpBB Group
Forums ©

 



PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.