74 250 runs rough in gear

It runs fine in park and nutral but once you put it in gear it runs rough like it wants to stall

 

It may seem to run fine in park, that is because there is no load on the engine. Not sure what your question is? Once a load is put on the engine and it runs rough, there could be alot of things causing it to do that. Carb. adjustment, timing. vaccuum leak, grounded spark plugs/wires, choke stuck, etc...............

 

it has all new plugs wires cap and rotor but i put a carb off of a 300 on it and it ran a little better someone said it might be the tourc converter could that be the case

 

It could be the torque converter but I realy don`t think so . Did you put new points in it ?

 

no I didn't try that but i will thanks

 

and the condencer or how ever the heck you spell it

 

yeah i'de change those together just like on my bike

 

coil going bad ?

 

that happened to me cuz my valve seals were going bad and my plugs fouled sometimes

 

i'll have to check all that I apreciate all the ideas thanks

 

had a coil do that to me would run fine in park could even rev it up as soon as a load was put on it dead had just put a new B&M torqe converter in it thought it was bad

 

Try pinching off all the vacuum lines one at a time, till you find one that does not change the way it runs. Also, check the vacuum advance can on the dist. Put a piece of vac. hose on it and pull a vacuum, with the cap off, and see if it moves the advance in the distributer. If not, the diaphram is bad. This will make your car run at a retarted timing set once it is underway. Let us know,

Earl

 

This probably isnt the problem but this happend to me a week ago, just from vibrations i guess one of the nuts on my engine mount bolts fell of, and the engine would shake like hell when ever i put into gear, and almost die.

 

i'm gonna have to try all that hopefuly i figure it out but it wont be till the snow is gone thanks for the advice