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SD22 info (service manual info included)

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Here will be a localized place to keep SD22/SD25 information.




The engine had some very advanced technology considering the time it was produced 


100mm stroke 3 main bearing crankshaft,

83mm bore 

deck height of 268mm

semi-floating pistons (.0001" interference fit on piston(not a typo), .001-.0018 clearance on the connecting rod to wrist pin)

massive 26mm wrist pins

piston squirters at bottom of bores

integral oil cooler on the side of the block.




Here are some images taken from my 1981 720 pickup diesel service manual

If you have any requested info, let me know and I will try to get pictures out of my service manual.


Basic fluid capacities 


Recommended fuel and lubricants

service data and specs




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