Cleaning Injectors

[mrvette]

IMHO   dirty injectors will make it run rich, not lean....because they will not
adequately turn off the fuel...they are blocked open...
check the pressure drop after engine is turned off, or run pump with gauge on
the rail turn pump off, and check pressure drop...IF it drops like a rock, the
REGULATOR os probably got some dirt in it....
Run the pump,  and pinch the RETURN line from the rail to the tank....pinch it
untill the pressure rises at least 50% off the static reading....then unpinch
the return line quickly....use pliars...and note the leakdown again...it may be
ok now...fair chance of it.....
the reg couldn't close all the way, causing lo-pressure, hence less fuel...runs
lean....GENE

Robert Gallant wrote:
> 
> I've got some injectors that I think need cleaning (engine has started
> to run lean).
> 
> I'm going to put some cleaner in a bucket and reverse flush the
> injectors using a power supply and spare fuel pump.
> 
> What should I use as a cleaner (paint thinner, mineral spirits, toluene,
> MEK, acetone, a couple of bottles of the stuff you dump in the gas
> tank,....)?
> 
> I just signed up to the list again (I was dropped for some reason), so
> please reply back to me in case the registration hasn't taken effect
> yet.
> 
> Thanks
> --
> Rob
> MailTo:gallant at oasys.dt.navy.mil