inline 6cyl

[bda259]

I have recently become in the possession of a truck that need some work. Unfortunately the truck had someone replace this motor with a 73 inline 6 engine and has rigged some things. So far I have replaced the cam and lifters and rebuilt the carb and had the head valves, seals, and guide all replaced and the head shaved.
The problem that I am having is the truck will just not idle smoothly, there are no vaccuum leaks either manifold or at the intake. The timing is correct and just seems to lack power mostly on the low end. Thank for any help you can give

 

[Craig]

What kind of cam does it have and also what carb is on it?
Craig Hager
[email protected]

 

[bda259]

the carb on the truck is a rochester mono-jet # 17056002, the cam I put in, is a performance cam, I had hoped to get just a little more power from the motor. Is this even the correct carb?

Thanks

 

[Craig]

Try putting a vacuum gauge on it and see what kind of vacuum it has.If it has decent vacuum then check the cam and make sure that its in correctly.It sounds like the cam is off one tooth.The mono-jet carbs were not that great of a carb.You might look into getting something a little better.
Craig Hager
[email protected]

 

[bda259]

>Try putting a vacuum gauge on
>it and see what kind
>of vacuum it has.If it
>has decent vacuum then check
>the cam and make sure
>that its in correctly.It sounds
>like the cam is off
>one tooth.The mono-jet carbs were
>not that great of a
>carb.You might look into getting
>something a little better.
>Craig Hager
>[email protected]

 

[bda259]

the cam I am pretty sure is in correctly, it was just a matter of putting the dot between the others on the crank gear, If there is something I missed please let me know, could the electrical to the solinoid on the carb, if not hooked up have an effect? thank you for your help!!!!!

 

[tzlff]

i have truck '77 350, but i am just looking at the '74 rochester monojet carb i had rebuilt for 106.00--i had fits trying to trble shoot the fuel, emission controls,choke op,vacuum break,heat riser,ad nauseam--my wife's 72 nova has this type carb---take it from me---as i get ready to hook up this rebuilt carb, i made a vow: if it still stalls after checking everything is ok,---i'll take it to a carb speciallist-- yeah,i know $$$, but it is soooo agrivating!!! i'm a doit yerselfer (better work done,etc.)but these carbs take time & patience---hard to do even if it's wife's. mechanics nowadays get pissed off if vehicle doesn't have computer chips &^ therefore, sure diagnosis w/o all the trial & error. i haven't been too much help, but i 'll look up the # of your carb if u tell nme brand---have many good 'ole books at home .later