I've got a 355, th350 208 case and 2.5 rockwells, one single pinion brake on rear axle, every time I stop fast the motor stalls out, its like driving a manual and not pushing in the clutch, if I burp the gas it will stay running and then is fine again once at idle, I'm running I believe 2800-3000 stall, is it posible my convertor is not right for my axles since I'm locking up the driveline directly,
Sounds like a carb issue...jetting or something
This weekend I'm gonna re time the motor and I throw a vaccume gauge on it and adjust as needed, I've had the motor in 3 diff trucks and always ran great, but this is an all new setup this year
You say it stalls when you stop quickly? Being this is a new setup, does the front of the truck dive when brake is applied? if so , maybe the float bowls on the carb are giving you problems. Just a thought.
Floats should be ok, its the same carb I've been running, just diff trans tcase and axles
I would think carb also
Quote from: Homewrecker John on August 29, 2014, 03:27:56 AM
Sounds like a carb issue...jetting or something
X100000
And timing
From helping others with the same issue, they had dirty carbs, and the secondary squirters were clogged. Not pumping fuel.
Do you run a fuel filter?
Yeah has fuel filter, I'm gonna be draining the tank also, it has torco in it now that is old, I've read that torco breaks down way faster then premium gas, so I'm planning on draining it and running it in the mower !! Then full tune up, adjust timing, and new fuel and see what happens
Put it in park, crawl up under the hood, and pull the throttle a few times. Running or not, you could still see if the secondary side is working or not.
Could be an easier fix than you think just a little bit of dirt can block any passage. And if you really need help, pull the carb off and send it to me. I'll get it workin for ya.
THE BEST WAY TO CLEAN A CARB, for me:
I dissisemble the carb 100%, every screw, every bracket. Soak it in a can of carb dip for 24hrs. Pull it out piece by piece. And spray compressed air through EVERY port/passage. then I rinse the pieces in solvent (just to clean the carb dip off, and dry them out) then air dry one last time.
Reassemble, but don't install. Dump gas down the horns, and pull the throttle arms wide open a few times. See if you have fuel coming out all the appropriate ports. If so, then install, set the bleeds/jets, let er rip!
Ps. Don't use pipe cleaners or any wire or hard objects to clean the bleeds. I don't like to use anything hard to clean any of the ports.
But reason being, some port openings on hollys are brass, and if you stuff something hard into it, it can actually ruin it. Like if you made a burr or somthing to hinder the fuel flow. The openings are very tiny, only a few thousands of an inch, so you can imagine what dirt can plug.
Pss. If ya need some more help, shoot me a message and I can try and help you out.
I'll try n stop by this weekend n get er right