1973 Cat D5 Injector pump removal

jjamna · Feb 21, 2022

Trying to remove an injector pump but no luck. Looks like all bolts are removed and it is binding on the shaft. Are there any tricks to removing one? And where can you buy reprinted service manuals on cats. Dealer said manual was no longer available.

dpendzic · Feb 21, 2022

Start looking on Ebay for a manual that covers your serial number--got all my Cat manuals off Ebay

jjamna · Feb 22, 2022

I have found some manuals. From $39 to $360 L.O.L.

jjamna · Feb 22, 2022

It act's like the shaft is bound up on it. Reason for pulling. Throttle only goes from idle to maybe 1/4 throttle. That is all.

dpendzic · Feb 22, 2022

yes--they are expensive--the manual for my 941 B was around $300--it has the 3304 engine which may be the same as yours? its a 4 cyl

AJ. · Feb 23, 2022

The pump has dowels in the mounting flange, make sure all the retaining bolts between the flange and accessory drive housing are removed, the pump drive is an offset tang and should come straight off it does not require timing as it only fits the one way, you have checked the fuel flow is good, the sediment bowl clean and the fuel filter clean, the gauge reading full pressure.
Good luck
AJ

jjamna · Feb 24, 2022

He got it off. Off to the shop for a rebuild.

jjamna · Feb 25, 2022

this is a 3306 (I think) it is a 6 cylinder

1973 Cat D5 Injector pump removal

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