M1009 Diesel to gas Wiring swap

[Nigsbro]

HI ALL I have a 1982 M1009 Diesel and want to put in a goodwrench SB350 in her has anyone done this? if so does the wiring for the diesel just unplug from the firwall and the gas wiring harness just plug in?

cheers <img src="emoticons/icon_smile_cool.gif" alt="Cool">

 

[steelsoldiers]

Hello Nigsbro,
I put a Cadillac 500 Big Block in a M1009 Blazer so I can help with your swap. It is not possible to just swap wiring harnesses unfortunately. The fuse block wiring on the inside is different too because there are provisions for the glow plug relay, different indicator lights, Gen 2 gauge, etc... The starter is also 24v and the batts are wired in series. I wired my batteries in parallel, disconnected the wiring harness from the diesel, pulled the diesel, put in the Caddy, taped up the Gen 2 harness, hooked the Gen 1 harness to the alternator, ran a keyed accessory wire from the fuse block to the choke and the HEI, and taped up the rest of the wiring. It worked great and just taping up the wiring allowed me to switch back to diesel after the Caddy blew up. If you are running a carb, the wiring will be easy. The old oil pressure warning wire plugged right into the gas sensor. All you need are electric choke wire, coil energizing or HEI wire, oil pressure, and alternator wiring. I used a mechanical temp gauge in place of the Gen 2 gauge. Any questions, let me know.<img src="emoticons/icon_smile_thumzup.gif" alt="Thumb Up"> Too bad you are across the pond or I would buy your 6.2L<img src="emoticons/icon_smile_smokin.gif" alt="Smokin'">

 

[Recovry4x4]

As a shortcut, you can also fabricate an extension from the pink wire going to the injection pump and feed it into the HEI distributer. This wire heats up when the key is on and shuts dowm when the key is off. Just what you need to control your distributor. Also to make your swap easy, see if you can find the throttle cable from any chevy of gmc pickup from the same era. Might be tougher over there and i'm sure a savvy fabricator could use the diesel cable.

 

[Nigsbro]

Hi there thanks for the reply's i have unplugged the harness out of the firewall and im going to hack at the gas harness so it can go back to diesel any time i have sourced all cables and ancillaries servo to remove the hydra boost system and i never knew how many parts were different between the m1009 and the blazer and no one over this side of the pond wants to help so any ideas would be great.
thanks.

 

[Nigsbro]

Just an update unplugged the diesel harness and the gas harness plug right in to the firewall and the first turn of the key she fired into life and everything works fine great at last some good luck <img src="emoticons/icon_smile_big.gif" alt="Big Smile">

 

[steelsoldiers]

Well ain't that something?? I never figured you would be able to just plug the gas harness in and go. Well, you learn something every day I guess. Congrats on getting it running, now let's see some pictures!<img src="emoticons/icon_smile_approve.gif" alt="Approve">