Rough Running 454 Mag?????help
#1
CFD5 is down at lake cumberland with his apache and is having a hard time with one of his motors. The symptom is it will start and run fine for a second then run rough like it is out of fuel.
He has done:
new fuel pump
switch carb from other motor
switch ignition from other motor
inspected for water in fuel
Any other ideas?
Thanks!
He has done:
new fuel pump
switch carb from other motor
switch ignition from other motor
inspected for water in fuel
Any other ideas?
Thanks!
#2
Registered
Joined: Feb 2002
Posts: 1,296
Likes: 1
From: LaPorte IN.
Has he checked the timing? When was the last time he changed plugs? If it is indeed running out of fuel it could be an obstruction in his tank pick-up. Good luck.
Craig
Craig
#3
Originally Posted by WETTE VETTE
Has he checked the timing? When was the last time he changed plugs? If it is indeed running out of fuel it could be an obstruction in his tank pick-up. Good luck.
Craig
Craig
Thanks! Him and Hadley are down there wrenching on it now. They changed the plugs and have run fuel out of the "out" side of the fuel pump to make sure of psi.
They/we are stumped!
Oh yeah...the houseboat generator pooped out also!
#8
STILL SOUNDS LIKE MAYBE COIL BAD CAP WILL ALWAYS BE BAD NOT GET WORSE AS U RUN
JOE HP TECH
AMERICAN PERFORMANCE MARINE
FOUNTIAN,CIGARETTE,SONIC, ACTIVE THUNDER
[email protected]
JOE HP TECH
AMERICAN PERFORMANCE MARINE
FOUNTIAN,CIGARETTE,SONIC, ACTIVE THUNDER
[email protected]
#9
Sounds like you've covered all the bases on the fuel issue. Did you clean the screen at the intake of the carbs? Those carbs sometimes get clogged right there. Also you could switch coils to test them and switch ignition modules. Do one at a time so you can narrow it down. My guess would be the ignition module.



