| [GMCnet] Journey from Minneapolis [message #297125] |
Fri, 11 March 2016 08:37  |
Tony
Messages: 59
Registered: January 2016
Karma: 0
|
Member |
|
|
...on the road. Things are going ok, but I am monitoring an exhaust leak.
Just for added adventure, the coach decided to alert my senses to the very real need to stop. The brakes are a bit soft, checked the fluid and it's leaking from the base of the master cylinder at the mount to the booster. Will monitor it closely, as I can not bleed the system single handedly.
Ken Burton, sorry I had to push onward but will look forward to meeting you and Laurie in Dothan.
--Tony
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] Journey from Minneapolis [message #297145 is a reply to message #297125] |
Fri, 11 March 2016 14:18  |
The Dr
Messages: 75
Registered: July 2014
Location: Toledo, OR
Karma: 0
|
Member |
|
|
Tony,
Watch that exhaust leak. I think I came close to burning mine up during my initial trip. Exhaust leak burned away a good chunk of the wood floor under dinette area. Wish I had known during the trip. On the other had, probably best I didn't. The fumes probably didn't help the clear thinking.
Have a safe trip.
Mike
Mike Sauer
Toledo, OR
1975 26' Avion
1-ton front end, SullyBilt AirBag System, 3.21 tranny
|
|
|
|
| Re: [GMCnet] Journey from Minneapolis [message #297146 is a reply to message #297125] |
Fri, 11 March 2016 14:43 |
cbryan
Messages: 451
Registered: May 2012
Location: Ennis, Texas
Karma: 3
|
Senior Member |
|
|
I do believe you need a master cylinder. Pretty easy to find. Keep it topped up if you don't replace it on the road. You might be able to bleed the new master cylinder on the bench, put it on, and get decent brakes without bleeding the whole system. But I'm not the expert on this, though gravity bleeding over a couple of hours did help me once. Open the bleeder, put hose on it into a jar, wait. Good luck. I would probably try to drive, but would check that master cylinder level religiously as I drove. Buy a quart of fluid.
Best,
Carey
Carey from Ennis, Texas
78 Royale, 500 Cadillac, Rance Baxter EFI.
|
|
|
|
| Re: [GMCnet] Journey from Minneapolis [message #297174 is a reply to message #297125] |
Sat, 12 March 2016 05:42 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
You can get a replacement master cylinder at AutoZone. Be careful if you do as the 1978 is different from earlier GMC models Specifically look at the size of the holes where the lines screw into the master cylinder. On an 1978 they are reversed as compared to earlier models. Be sure to bench bleed it before installing it.
I have also seen where those master cylinders look like they are leaking at the back and all that is wrong is the cover gasket leaking. The master cylinder is not level so the fluid from the reservoir leaks out the back.
You can get a cover gasket at AutoZone or NAPA. Look for the HELP brand. It should be hanging on the HELP section peg board. It will take 5 minutes and no tools to replace it.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
