The 5J does not use a D311.
Thanks Rome,
My mistake it's the U series that use the D311 engine. had my wire crossed.
I have corrected the title of the 5J5001 parts book, apologies for any inconvenience.
Hello , the part manual for the 5j will be ok for the engine and pony motor ,
,engine is D3400
6J parts book for the tractor - https://catpublications.com/en-US/Search/TokenSearch
ENGINE SERIVE MANUALS https://www.jensales.com/categories/caterpillar/d2.html
Thats I what I meant to type in, lol 3400