Q&A: 76 GMC RV 1976 GMC MOTORHOME SPECS 76 GMC MOTORHOME. Hi my name is Robert.... Most owners will run with 15W 50 oil, the pressure should be 50 psi oil pressure cold, 40 psi hot @ 55 mph, and 20 psi hot idle...

Jan 5, 2007 · I have a 76 GMC Motorhome, 455 Olds Gas V8, TH400 auto tranny, front wheel drive, ( Toronado drive train). In the interest of power/fuel economy I need to replace this 212 HP @ 3400, 344 f/# torque @ 2400. What diesel most closely will match, physical dimensions (to fit), power, and ability to adapt or bolt up to tranny?

I have a 76 GMC Motorhome, 455 Olds Gas V8, TH400 auto tranny, front wheel drive, ( Toronado drive train). In the interest of power/fuel economy I need to replace this 212 HP @ 3400, 344 f/# torque @ 2400. What diesel most closely will match, physical dimensions (to fit), power, and ability to adapt or bolt up to tranny? Bill 76 Palm Beach Orlando

Customer: I'm putting in an alt from a chevy s10 blazer in my 76 gmc motor home and have the es82 adaptor wire plug with resistor in it but won't charge Mechanic's Assistant: I understand that youre having trouble with the alternator not charging after installing it in your 76 GMC motorhome with an ES82 adapter wire plug and resistor, and the Chevy Mechanic will be …

I'm putting in an alt from a chevy s10 blazer in my 76 gmc motor home and have the es82 adaptor wire plug with resistor

Customer: 1981GMC works really great cruising down hwy until it has to slow down for stop sign or traffic light and quits we sit and wait for an hour or2 and it will start .we replace everything new, got no mechanic can tell what is happening Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

Oct 9, 2013 · I am interested in a 1973 GMC motorhome c/w a 455 Olds Toronado engine (front wheel drive). I want better mileage. If I convert to Electronic fuel injection from the standard 4 barrel carb will I get better mileage? Right now it gets about 6-7 mpg. Thanks Mike

Oct 1, 2009 · Coolant leak is a steady drip under the motorhome when running. 10/2/2009 2000 Itasca Horizon on Freighliner chasis with 3126 300hp cat. 10/2/2009 I have a 76 GMC motorhome with the 455 Olds engine. When it has been driven for …

Customer: I have a 1974 GMC Motorhome with 455 old and holly 600. The Motorhome weight about 11,000 pound. The Motorhome weight about 11,000 pound. What is the max weight that I can tow with the Motorhome.

Feb 12, 2018 · I have 1974 GMC Motorhome with olds toronado v8 7.4 l and 455 ci. I found an carb sold by OReilly auto part for $289 part no 4-400. The reason I choice this carb is because it is the only one that I c …