RUMCars Forum

General Category => Unusual Microcar Discussion => Topic started by: rellim51 on January 14, 2011, 04:09:53 pm

Title: Need Help with a Janus 250!
Post by: rellim51 on January 14, 2011, 04:09:53 pm

I am restoring a 1958 Zundapp Janus 250.  I am having trouble finding brake parts.  I need wheel cylinders and a master cylinder.  Can someone steer me in the right direction?

Title: Re: Need Help with a Janus 250!
Post by: Bob Purton on January 14, 2011, 05:33:38 pm

Have you tryed Jim Hacking? Isnt this the car that was designed by Hugh Janus?

Title: Re: Need Help with a Janus 250!
Post by: Basket case on January 14, 2011, 06:08:51 pm

Have you got the old ones?
Nigel at Contract Auto Engineering, somewhere in the middle of Englandshire can sleeve wheel/master/slave cylinders with stainless. Speak to him nicely and he'll machine you some new brake pistons. Mind you, I don't know what Janus pistons look like, so it may not be possible.
He did a great job on my Honda S800. Anybody want to buy a restored S800?
If you can't find Nigel's address, let me know and I'll dig out his invoice (which was very reasonable).

Title: Re: Need Help with a Janus 250!
Post by: richard on January 14, 2011, 06:18:48 pm

its bob that has the old ones  ;) all of them

Title: Re: Need Help with a Janus 250!
Post by: Jim Janecek on January 14, 2011, 07:00:33 pm

The wheel cylinders are the same as Heinkel. don't know if that means they are the same as Trojan.

Title: Re: Need Help with a Janus 250!
Post by: Big Al on January 15, 2011, 08:10:25 am

The wheel cylinders are the same design as the Heinkel/Trojan but I do not know if they are the same bore. These restore pretty well and I can do a set of original Heinkel ATE slave cylinders or you can buy new from HTC Ltd with the main block machined out of a small billet. If they are different bore then it is off to the engineers for a sleeve. You will need to be carefull with your pistons as these will not be available in this case I expect. Also the sourced Heinkel seal will not fit and you will need to talk to a seal supplier.
Mastercylinder I have but cannot recall the details as to what spec and if it matches anything else. Mine is spankers so I am in no rush to part with it, or my new slave cylinders, just in case a pick up Janus myself.

Big Al

Title: Re: Need Help with a Janus 250!
Post by: rellim51 on February 04, 2011, 04:31:26 pm

Thanks for the info.  I have solved the master cylinder problem, I adapted a small Wilwood master cylinder to the original bracket.  The wheel cylinders are the next problem.  I have all of the original wheel cylinders and they are in pretty good shape but I need one piston and all the seals.  I don't have the old seals soI don't really have a starting point there.  I assume a Heinkel is another car manufacturer? where do I go to find brake parts for one?