Question/looking for help with the Inj. Pump Hydraulic Head.

[Mark Buller]

I have a bad Hyd. Head on my M35A2 with the LDT-465-1C Turbo eng. I have an old serviceable Hydra. Head from a multi-fuel 5 Ton eng. (The LDS-465-1A). Will it work on the duce turbo eng. / Inj. Pump ? I assume it feeds more fuel to the engine (due to the higher HP of the 5 Ton eng) but it should work or? Of, course the other way around....the duce Hydr.Head to a 5-ton eng.... probably not sufficient fuel supply qualtity/pressure). Thanks for anyone who can shed some light on this subject. Mark P.S. Hope someone knows something about this before I go to the work of "trying" it.

 

[SCSG-G4]

They will interchange, but you will probably have to turn the fuel supply 'down' a couple of flats. There are a number of threads on this subject, probably found in the deuce forum, or in a sub forum of that.

 

[cattlerepairman]

LDS465 (HD90101AR) and LDT465 (HD90100) hydraulic heads, the real difference.

After having my LDS hydraulic head crack, and since I have some spare bad LDT hydraulic heads laying around, i decided to pull both apart and compare. I've come to the conclusion that the only difference is in fact the plunger itself. I verified that the 90101AR plunger fits the bore in both...

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