Anyone know how to adjust or turn down a 7.3L pump?

[k_williams1982]

I have a 1988 Ford F-250 Extended Cab 4X4 with a 6.9L and C6 automatic transmission. I put a 7.3L injector pump on it because I was told it would put a little extra pressure to my injectors, thus increasing my power and mpg (Junk yards will say anything to make a sale won't they?!?). I'm overfueling the engine now, and it blows out a lot of black smoke when I stand on the throttle or pull a grade. Is there a way to turn down the fuel rate on that 7.3L injector pump, or do I just need to go buy a 6.9L injector pump? This is my first diesel, but I am sure it won't be my last.

 

[tuke]

Don't know if it'll help but heres a link to zigg's article http://www.members.shaw.ca/k2pilot/Injection pump adjustment article.htm

 

[93turbo_animal]

I beleive if you look in the tech article you'll find a how to turn one up its all the same but turn the screw CC to turn it down

 

[93turbo_animal]

Oh and I forgot welcome

 

[TLBREWER]

Welcome! Put all that truck info in your signature so that we can better assist you in the future.

Tom

 

[Diesel JD]

Actually they told you the truth at the Junkyard. Bad thing is that the extra fuel usually becomes black smoke unless you have a turbo or some other way to force more air in teh intake. If its a lot of black smoke you probably need to turn it down1/4-1/2 flat maybe. Not too much or you won't like the result. Some smoke is normal on these motors, especially hard acceleration up a grade under load.

 

[Agnem]

I wouldn't bother turning it down. Keeping your foot out of the accelerator will do the same thing. YOU MUST install a pyrometer though, before you do too much uphill driving or towing. Making sure the pump is properly timed is key also.