D4 #7J fuel injector lifter yoke spec??

1941D4DOZERBOY
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3 years 7 months ago #226079 by 1941D4DOZERBOY

D4 #7J fuel injector lifter yoke spec?? was created by 1941D4DOZERBOY

can anyone tell me the spec/ measurement for the (4 1/4 bore engine) lifter yoke to pump housing measurement spec?? is it 1.741" or is it something else. for some reason this measurement is not making the engine run. I have another spec of 1.736" but the manual says that is for the 4 1/2 engine.. im so confused. this is a 1941 D4 7J dozer... thanks

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rax200
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3 years 7 months ago #226081 by rax200

Replied by rax200 on topic D4 #7J fuel injector lifter yoke spec??

Hi Dozerboy,
Here is the settings out of my service book

Regards

Regards

Daryl

1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug

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D4Jim
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3 years 7 months ago #226083 by D4Jim

Replied by D4Jim on topic D4 #7J fuel injector lifter yoke spec??

edb had some posts a while back on how variations from the 1.736" could affect injection timing and it showed that a few thousands made a big difference in the ignition timing, IE several degrees.
Make certain the measurement is from the machined surface free of all paint and crud.

ACMOC Member 25 years
D47U 1950 #10164
Cat 112 1949 #3U1457
Cat 40 Scraper #1W-5494

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1941D4DOZERBOY
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3 years 7 months ago #226245 by 1941D4DOZERBOY

Replied by 1941D4DOZERBOY on topic D4 #7J fuel injector lifter yoke spec??

thank you i will

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D4 #7J fuel injector lifter yoke spec??

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