1170 Fuel Injectors

DG 3 · Jul 22, 2020

I am in the process of trying to replace the injectors. I was able to get 3 of them out by prying on the fuel line tube several times back and forth until they freed up enough to pry up on them. The other three are so tight I can barely move them back and forth and even broke the fuel tube off of one. Is there a puller for those? Any other ideas? Thanks in advance for any help!! I really appreciate the help all of you have given me so far!!

Dieseltech · Jul 23, 2020

You might need to pull the head and drive them out from the bottom end. There are two seals on pencil injectors, the top one holds compression IF there are NO nicks/burrs where it seals at both head and under the injector banjo inlet. The lower seal is a carbon dam to keep carbon from sticking injector into the head bore, it DOES NOT hold compression, but WILL leak if the top compression seal leaks. When injectors are out, if there are ANY nicks under banjo area, or bent that injector is history, can't be cleaned/reset and used again. A 3/8 drill bit can be used to clean the head bore after injectors are out.

dwag · Jul 24, 2020

Take the guts out of stuck injectors, grind down piece of 5/16" redi rod, drive in and weld to inj. Use pipe/spacer & nut to pull inj. PIA but would help to remove water & ex manifold. 50/50 mix acetone and ATF excellent loosening agent.

DG 3 · Jul 25, 2020

Thanks!! I will try that. I really don't want to pull the heads

1170 Fuel Injectors

DG 3

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Dieseltech

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dwag

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DG 3

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