mr T

hey guys my injectors 4,5,6 have small leaks ...there's some residual fuel accumulation around the injector outlets...the crush washers need replacing....where do u get them?...autozone, napa, etc dont have them they have the dust boots....i want the washers

ps its not a sudden new leak...no cause for alarm juts somethign ive been puttig off for a couple years

sleepr tsi

I'd look for a Cummins dist/service center by you......Actually, you live close to me, there's one in Rochester and Buffalo. I get the impression that the one in B-lo if the "hub". Here's the number: (716) 631-3211

mr T

thanks bud...where in buffalo is it? do u know?

sleepr tsi

No idea, never been there. The on e in Rochester is by Beers of the World, though

erniew

The part number that you need is Cummins 3903880 as I recall

schoust

Have fun getting them out if they are leaking like that. I had one that was leaking yesterday and it was in there so tight It took a long time to get it out,of course I did not have the right tool for the job.

mr T

yeah its gonna be interestign gettign them out when i do this next month...ive read up on all kinds of tricks..apparently u can use a lug not..fits right on the injectore and then wiggle it out...after that apencil magnet shoudl do the trick to get the washer out...i hope there isnt any crud in there cause i dotn wanna wipe it "into" the combustion chambers...im more concerned about gettign the truck re-started all by myself...thanks for the part number bud!

ratsun

mr T
The lug nut washer trick works like a charm, the washers are copper and usually stick to the injector but make sure they come out or you need to go in after it. I used a bore cleaner to clean out the holes and then followed up with a few shots of brake clean. You want the bores clean so the new washers seal. Put a dab of grease on the new washer to keep it stuck in place when installing the new injectors.