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440 issue

  
Mopar Muscle
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440 issue

 
tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/19/11
03:31 PM

I got a 1967 Plymouth Fury with a 440 in it taken out of a 77 Dodge truck. I just got it back from the shop yesterday with a different rear end gears, and cruised around in my neighborhood. i tried to do a quick burnout by simply coming to a stop and then just hitting the gas. when i did that, i took off down the street only about 50 feet and my car stalled so i had to just coast back to my driveway. now it can start and run, but it runs like crap (excessive vibration, i put it in gear and it bogs down and stalls). i think the carbs flooded but that shouldnt last long, does anybody know what this means, if so what can i do to fix it???
thanx
tim  

451Mopar 451Mopar
User | Posts: 220 | Joined: 07/10
Posted: 02/19/11
05:18 PM

Sounds like your running out of fuel?  Check the fuel lines, I had something like that happen, and the fuel line going to the pickup in the tank split and air was getting into the fuel line (along with a bit of gas.)  engine would idle, but not run under load.  
It could also be the ignition system.  Point gap(Dwell) or bad coil, or some other mechanical failure in the distributor.
Worst case, timing chain jumped?  Turn crank back/forth with a breaker bar and a 1-1/4" socket and see if the dist turns at the same time.  If it moves about 10-degrees or more you need a new timing chain.  

tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/19/11
05:41 PM

i took the distributor cap off and rotated the crank and i saw the rotor move along with it, does that mean the timing chain is bad?
Confused  

451Mopar 451Mopar
User | Posts: 220 | Joined: 07/10
Posted: 02/20/11
02:09 AM

no, if you rotate the crank and the rotor does not move for several degrees then the chain is loose.  

tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/20/11
12:00 PM

ok, then so the timing chain is fine, then it must be either the carb or the distributor so ill mess with them or replace the carb, thanks for your input  

marcohotrod340 marcohotrod340
Enthusiast | Posts: 461 | Joined: 09/08
Posted: 02/21/11
11:59 AM

maybe fouled spark plugs or bad plug wires. if a holley maybe blown powervalve. or fuel filter  

tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/21/11
12:50 PM

nah its a edelbrock 750, i checked the spark plugs, theyre all fine and all cylinders are firing, the carb is being torn apart so hopefully thats the cause...  

tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/21/11
05:21 PM

I just got the carburetor cleaned and put it back on and it still runs crappy, this is really pissing me off i dont know what else to check for Frown  

IQ52 IQ52
Guru | Posts: 858 | Joined: 06/10
Posted: 02/22/11
02:51 PM

What gear ratio did you have installed?  

marcohotrod340 marcohotrod340
Enthusiast | Posts: 461 | Joined: 09/08
Posted: 02/22/11
03:51 PM

stopping to do a burnout is usually not a problem. it will not mess up a carb, again fuel filter? vibration? give us more info.  

tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/22/11
09:48 PM

ok, the gears were 3.90 taken out and replaced with 3.55 and i took off the fuel filter and blew thru it to see if it was clogged but turned out to be fine, the carb was taken apart and cleaned and put back together and that wasnt it, im saying vibration because when i start it up it runs, but runs like *** and the motor vibrates while it struggles to run, so since it aint the fuel system,is the distributor 180 out?? it may have jumped 180 degrees when i took off down the road...  

Ron1973 Ron1973
Enthusiast | Posts: 379 | Joined: 09/10
Posted: 02/22/11
11:18 PM

If it flooded out on you, the plugs can still be fouled, clean looking or not.
All vacuum lines hooked back up right, after the cleaning?  
____________________
**
Ron1973

IQ52 IQ52
Guru | Posts: 858 | Joined: 06/10
Posted: 02/23/11
02:33 AM

Best quess? While attempting to do the burnout you wound the holy livin' whiz outta a stock truck 440 and floated the valves. Now you have bent valves. Do a compression test and see if'n you have low cylinders.  

kissimmeeBbody kissimmeeBbody
User | Posts: 210 | Joined: 08/08
Posted: 02/23/11
06:30 AM

or bent pushrods  

tbarnes440 tbarnes440
New User | Posts: 37 | Joined: 02/11
Posted: 02/23/11
09:02 AM

ok so replace all spark plugs? which is the best brand to go with?  

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