My Willys 3A and 3B Community

TECH FAQ SECTIONS => Chassis, brakes and suspension. => Topic started by: PercyUK on November 30, 2018, 07:34:09 AM

Title: Assisted Brakes
Post by: PercyUK on November 30, 2018, 07:34:09 AM: Hi friends,
I have had a search and can't find anything on this so I thought I would lob it in and see what happens.

Has anyone tried to fit a remote vacuum assist for the brakes. I have seen them used in other vehicles such as the late 60's Lotus Elan and it would allow the original drums and master cylinder to remain but give you twice the effective pedal power to improve stopping.
They seem to come in various sizes, some quite small, so in theory it could be bolted against the frame somewhere and perhaps a shield fitted to protect it if you take it off road.

Thoughts ?

Percy
Title: Re: Assisted Brakes
Post by: mtnman37879 on November 30, 2018, 09:19:31 AM: If ya want better stopping add better brakes. You can get bolt on 11" brakes from a 70's Jeep or GEO Tracker disc brakes can be added with a kit from Brennan Medcalf https://www.facebook.com/pg/Brennans-Garage-147768505901277/posts/
Title: Re: Assisted Brakes
Post by: Rus Curtis on November 30, 2018, 03:38:06 PM: Percy,
I was initially stumped, but after thinking about it I remembered, Oh yeah; Search! Using "Willys Brake Boost" I found this:
https://cj3b.info/Tech/BrakeBooster.html

And (don't have any information on how well this works):
https://www.kaiserwillys.com/brake-booster-kit-with-vacuum-tank-fits-41-66-jeep-willys

Knowing that the early jeeps eventually had a boost accessory puts it in the "possibility" category for earlier models.
Title: Re: Assisted Brakes
Post by: PercyUK on December 03, 2018, 06:22:23 AM: Hi everyone, thanks for the replies.

Thanks Mtnman, I am aware of the 11ï¿½ option, I like it but I think sourcing the parts in the UK might be a bit difficult, not having so many Jeeps in the scrap yard etc. If I go for new, drums, cylinders, shoes and back plates I suspect that it may be a bit expensive.

Thanks Rus, that is exactly what I was thinking of. I can get a brand new item, manufactured for racing and kit car builders, for a few hundred quid. They come quite small so I think it could be hidden from view quite easily and the plumbing doesnï¿½t look too complicated. In fact the Kaiser site also has a ï¿½how to installï¿½ document for their own version which could be a good source of info.

I donï¿½t plan to do it yet as I am still just trying to get the vehicle back into one piece and have only this weekend finally got all the wheels to point in the correct direction, but I reckon I will definitely consider it in the next few years once I have a few miles on the clock.
I like the idea that it would look stock but have better braking performance.

Thanks again.

Percy
Title: Re: Assisted Brakes
Post by: Dutch_Jeeper on December 09, 2018, 05:35:08 PM: You can install a remote Brake Booster, Herm te overdrive guy has a complete set. However with shipping and import it's probably cheaper to source a remote brake booster from a Volvo Amazon. I am almost certain that is the same booster as the one Herm offers.