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Tow Braking System

Yahoo Message Number: 68750
I have a 2005 Inspire, and would like to install the M & G brake system. Does my 2005 Inspire have a special air hose for this unit. I know I can not just tie into an existing air hose on the motorhome. How can I use this system ??

Stan Inspire 2005, 51406

Re: Tow Braking System

Reply #1 –
Yahoo Message Number: 68771

Hi Stan:

Instructions come with the M&G kit. Connection depends on the brake system design, as ours use air (as opposed to air over hydraulic or hydraulic) it is a direct connection to your system. Actually to one of the rear brakes, this is the main attraction of the design, the application of the towed brakes is directly proportional to how hard you are applying the brakes on your coach so it must be tied directly to it. More pedal = higher air pressure = more action at the towed master cylinder. It was a very simple plumbing job, as best I can recall the coach brakes use 1/2" NPT threads, you install a "T" fitting which supplies the attachment for the 1/4" flexible high pressure line that comes with the kit. An air tool connector (mine came from Sears) supplies the air for the connection to the car which goes directly to the M&G cylinder. M&G may supply the connector now, I don't know.
Anyway, M&G does supply instructions. I did mine some years ago and found the instruction minimal, I suspect they are better now. It isn't complicated, any competent mechanic should be able to understand them. Issues, if any, are usually with the towed's master cylinder location. There needs to be enough space to install the M&G device between the firewall and master cylinder. Installing the system in our 2005 JGC would have required cutting part of the fender support away. I would have required that a reinforcement be welded back in and finished and painted. This was too much expense so I went with the Roadmaster air brake system. Instead of an M&G type cannister installed behind the master cylinder there is a cylinder that attaches to the towed's brake pedal and a floor bracket. The principle is still the same, I even use the air brake connection originally installed for the M&G on the coach. And the Roadmaster cylinder weighs about 2 lbs which beats the heck out of the big heavy box systems.
Either one are my preference for towed brakes because of ease of use, light weight, proportional braking application and no electrical involvement other than lights.

Bob (rthandren@...)
'05 Inspire 51178

Re: Tow Braking System

Reply #2 –
Yahoo Message Number: 68791
Bob,

Good to hear from you. I appreciate your comment that will help me in my decision. One of the other Inspire owners had to use an SMI system that is also similar to the M&G

Stan Inspire 2005 51406

Tow Braking System

Reply #3 –
Yahoo Message Number: 68773
The system needs to tie into the spring brake side of your brake canister which carries alot if liability. Call me for more info.

Regards,
Dave

Dave Rousey Jr./ Owner
Former CC Technician
Styleworks RV Repair &
Restoration

33070 Roberts Ct.
Coburg, OR 97408
(541) 543-7983

http://styleworksrvrepair.com dave@...

Dave Rousey Jr./ Owner
Former CC Technician
Styleworks RV Repair &
Restoration

33070 Roberts Ct.
Coburg, OR 97408
(541) 543-7983

http://styleworksrvrepair.com dave@...

Re: Tow Braking System

Reply #4 –
Yahoo Message Number: 68774
Dave,

You are confusion me. The spring brake side is the parking brake. Has full system pressure for release or compressing the spring. No pressure releases the spring and applies the brakes by spring force. So this brake system would not tie into it but the service side of the brake system which is what applies the service brakes on all four wheels. Please enlighten my lack of understanding one the "lot of liability".

Leonard Kerns
97' Magna 5418