GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] Extremely Hard Brake Pedal Force Required to Stop 1978 Royale
[GMCnet] Extremely Hard Brake Pedal Force Required to Stop 1978 Royale [message #301796] Tue, 07 June 2016 15:24 Go to previous message
Afastchief is currently offline  Afastchief   United States
Messages: 9
Registered: October 2011
Location: King NC
Karma:
Junior Member
I would like to thank each person who took the time to help troubleshoot my
powerless brakes. I found the vacuum reservoir check valve defective and
replaced it and brakes were 50% better but still required a good deal of
force to "Wow" it up. After I got home from our six day trip from King, N.C
to Henrietta Texas(2,450 miles) the brakes had deteriorated considerably
more. I got under the hood "*again*" and this time I could here whistling.
I run my hand around the vacuum chamber and Wah-la....there it was. My hand
was sucked in toward the rubber plug in side of vacuum booster. I suppose
the dummy plug is there in case you want to pull vacuum from either side of
chamber depending upon the vehicle it is being installed in. I temporarily
duct taped the hole and Wah-la again, I have brakes. Again, thank each of
you that helped point me in the correct direction.

Alan Edmondson
King, N.C.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org



Alan Edmondson King, NC 78 Royale, engine bay insulation, dual cockpit fans, Victron 160A isolator, Yandina combiner, Victron BMV 700 battery monitor with Bluetooth, Progressive Dynamics 9200 converter
 
Read Message
Read Message
Read Message
Previous Topic: Route advice from Grand Canyon to Rincon Parkway (Ventura CA)
Next Topic: [GMCnet] tire load range
Goto Forum:
  


Current Time: Tue Nov 19 23:39:06 CST 2024

Total time taken to generate the page: 0.00718 seconds