Hey you backyard mechanics, step inside. - ZR-1 Net Registry Forums

GrayZ · 09-01-2009

I have an old RV, "the Ramanator" it is a 1979 dodge motor home, 360 ci. dodge.
we fixed her all up on the inside, with Rams stuff, and use it 10 or 12 times a year to tailgate at football games. It now officially hates me.
starts and runs great until warm, then sputters and dies.
New fuel pump and filter.
New carb
new coil
new dist
we think it's a fuel issue, but have thrown parts at that area.
it cranks won't fire up, let it sit for 15 minutes, fires right up.

anyone dealt with this type of problem, please chime in.

GOLDCYLON · 09-01-2009

Vapor lock?

gbrtng · 09-04-2009

Quote:

Originally Posted by GOLDCYLON

Vapor lock?

yup.

Dynomite · 09-04-2009

Quote:

Originally Posted by gbrtng

yup. =D>

My ole dodge truck did the same thing...I had to cover fuel lines along the frame rail as they were getting too hot from exhaust

jeasen · 09-09-2009

I had a Dodge truck that did the same thing. I replaced the module in the distributor and the problem was fixed.
Jeasen

4DSZR1 · 09-01-2009

I maybe wrong, but I suspect electrical. Thinking about it, the only variable in your problem is heat. You've replaced things, how about the connections to those things, something has an ok connection when cold, but when it heats up an expands, causing a disconnect?

In carb engine a quick way to check if you have fuel problem is trickle a little gas out of a cup into the carb as someone cranks.... you'll know right away if gas or spark. a safer, but less fun way to check would be to pull a plug when hot and crank away :-)

Just thoughts..

Good Luck

ShawnZR-1 · 09-11-2009

Did you replace the distributor before or after the symptoms presented? What kind of timing advance does it have, vacuum?

Could be a fuel delivery issue too, can you put an inline pressure gauge before the carb and monitor the pressure?

GrayZ · 09-11-2009

we have narrowed the problem down to a fuel issue.

we just replaced the rubber fuel line from the fuel pump
it was old and flabby like me.
so far so good, the gas gauge also does not work so we are goin
to drop the tank, get it cleaned up and put a new sending unit on it.
wish me luck, 2 weeks until the first tailgating, i shore hope she's running by then.

09-01-2009	#1
GrayZ Join Date: Mar 2006 Location: Innsbrook, Missouri Posts: 1,727	Hey you backyard mechanics, step inside. I have an old RV, "the Ramanator" it is a 1979 dodge motor home, 360 ci. dodge. we fixed her all up on the inside, with Rams stuff, and use it 10 or 12 times a year to tailgate at football games. It now officially hates me. starts and runs great until warm, then sputters and dies. New fuel pump and filter. New carb new coil new dist we think it's a fuel issue, but have thrown parts at that area. it cranks won't fire up, let it sit for 15 minutes, fires right up. anyone dealt with this type of problem, please chime in.

09-01-2009	#2
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Hey you backyard mechanics, step inside. Vapor lock? __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

09-09-2009	#5
jeasen Join Date: Jul 2009 Location: Bonner Springs, Kansas Posts: 34	Re: Hey you backyard mechanics, step inside. I had a Dodge truck that did the same thing. I replaced the module in the distributor and the problem was fixed. Jeasen __________________ 1994 ZR1 Red on Red #111

09-01-2009	#6
4DSZR1 Join Date: Dec 2005 Posts: 692	Re: Hey you backyard mechanics, step inside. I maybe wrong, but I suspect electrical. Thinking about it, the only variable in your problem is heat. You've replaced things, how about the connections to those things, something has an ok connection when cold, but when it heats up an expands, causing a disconnect? In carb engine a quick way to check if you have fuel problem is trickle a little gas out of a cup into the carb as someone cranks.... you'll know right away if gas or spark. a safer, but less fun way to check would be to pull a plug when hot and crank away :-) Just thoughts.. Good Luck

09-11-2009	#7
ShawnZR-1 Join Date: Jul 2005 Location: Atlanta, GA Posts: 81	Re: Hey you backyard mechanics, step inside. Did you replace the distributor before or after the symptoms presented? What kind of timing advance does it have, vacuum? Could be a fuel delivery issue too, can you put an inline pressure gauge before the carb and monitor the pressure? __________________ 1991 Chevrolet Corvette ZR-1