D1503

[davisgravel]

I have an l2900 tractor with D1503 engine with hole in side of block, was wondering if it's possible to install a D1703-M-BG engine from a generator into this tractor? Any info would be appreciated

 

[North Idaho Wolfman]

I have an l2900 tractor with D1503 engine with hole in side of block, was wondering if it's possible to install a D1703-M-BG engine from a generator into this tractor? Any info would be appreciated

It might...
3 major factors to check:
Max RPM, most generator engines are only equipped to do a set RPM usually much lower than a tractor.
The oil pans tend to be different, so you will need to make sure your pan will fit the new engine.
You need to make sure the fuel cam has the ability to drive the tractors hydraulic pump.

 

[davisgravel]

thanks for the info, wondering if i could strip down to a short block and use my fuel pump, head, oil pan and so on, guess i'm asking if the block would be same outside as mine.

 

[GeoHorn]

You’ll likely want to inspect it first (if you’re thinking of buying it sight-unseen.)

The mounting-faces may differ where the tractor-engine mounts to the transmission versus how the gen-engine mounts a generator. The actual block-supports may also be different.

Additionally, there may be no provision for a gen-engine to support an alternator belt-drive as the generator may serve double-duty as the charging-circuit for the on-board battery.

 

[davisgravel]

Thanks for info, sounds like there's gonna be to much of a difference to make it worthwhile

 

[North Idaho Wolfman]

You’ll likely want to inspect it first (if you’re thinking of buying it sight-unseen.)

The mounting-faces may differ where the tractor-engine mounts to the transmission versus how the gen-engine mounts a generator. The actual block-supports may also be different.

Additionally, there may be no provision for a gen-engine to support an alternator belt-drive as the generator may serve double-duty as the charging-circuit for the on-board battery.

Actually they are the exact same block.
The alternator support can all be taken off of the old engine.

 

[North Idaho Wolfman]

thanks for the info, wondering if i could strip down to a short block and use my fuel pump, head, oil pan and so on, guess i'm asking if the block would be same outside as mine.

All you need is the oil pan (possibly the pick up tube) and possibly the fuel camshaft, and the governor assembly, the rest of the parts are the same between the engines.
I'm not sure about the head as the valves might be bigger on the d1703, so no changing the head.

Technically no they are not the same block the D1703 has a larger bore, but they do have the same mounts and bolt patterns.

 

[ASTER]

all you need is the oil pan (possibly the pick up tube) and possibly the fuel camshaft, and the governor assembly, the rest of the parts are the same between the engines.
I'm not sure about the head as the valves might be bigger on the d1703, so no changing the head.

Technically no they are not the same block the d1703 has a larger bore, but they do have the same mounts and bolt patterns.

i did the same thing i bought a l2500 with a hole in the side, swaped out to a d1503 the big prob was it was splined shaft, i cut the center of it out slid the key shaft in there, no big deal , but i should of just swaped the fuel cams....