Glowplug control?

[gearhead]

My 83 B2200 has really worn out suspension.So bad alot of it needs to be replaced,but replacement parts are nowhere to be be found.So I figured I will put the engine into something else.After a bit of searching it was discovered that vehicles with the 2.6L 4G54 mitsubishi engine share the same bell housing as our trucks.So I found a 88 Mitsubishi Mighty Max 4x4 5 speed in need of a heart transplant.Somehow the 2.6 has no compression in 1,2, or 4.Perfect candidate for a diesel swap.

The only question I have is how do I swap in the glowplug controls/wiring?Or would it be better to a run the glow plugs off a momentary push button switch?If so how do I do that?

[tempforce]

somewhere in the forum, there is a link to a universal glow plug timer

[DieselDavo]

The Perkins user manual I uploaded shows just a momentary key switch position for the glows so [glow=red,2,300]YES[/glow] just a push button would work.

[gearhead]

Another question: There seems to be hydraboost on the diesel and vacuum boost of the gasser.How to I convert from hydraboost to vacuum boost or vice versa,whichever is easiest.

[johno]

The Mazda (and Ford )2.2 diesels I'm familiar with have vacuum pumps and conventional gasser vacuum boosted brakes, not hydroboost. You should have no problem "converting".

[johno]

One more thing - if using a push button, remember that these are "6-second" glow plugs - they reach red-hot in about 3 seconds, then continue getting hotter until they burnout, unless the voltage is reduced before the 6-second limit. The old method of control was to have a limiting resistor in the circuit, which also slowed down the heating rate. The method used by Mazda was to send full power for a time determined by the engine temperature, then switch to low power. That's still the most convenient method, but you'll need a controller or a 3-position switch and the ability to count to 6.

[gearhead]

so what about a momentary switch and the ability to count to 5?6 is pushing it a bit 10+ gets real hard ...

[johno]

Hmmm, 'hadn't thought about that, but of course you're right. Counting to 6 while trying to hold a button with one hand might require removing at least one shoe. Just counting to 5 is a brilliant solution.
A more advanced method is to count to a lower number, such as 5, or even 4, but count slowly. In the most extreme case, you could count to 1, but very, very, slowly. I think that's essentially what the electronic controls do.

[gearhead]

lol...

Wow this swap is looking like its supposed to be.Motor mounts on both engine have roughly the same angle off the frames.the mounts themselves seem like they are the same width apart(just eyeballing here,I haven't even attempted to pull the diesel yet).That and both clutch disks are 8 7/8.Only snafu seems to be that the mazda uses a 15/16" 22 spline clutch and the mitsubishi uses a 1" 23 spline clutch.Oh well, I will just use the mitsubishi clutch,even though the clutch in the mazda is like brand new (less than 500 miles on it)...The only other possible catch might be the oil pan,but its easy to modify...

[gearhead]

A 2.2 perkins DOES NOT just Bolt into something with a 2.6. The bell housings looks similar until you actually start measuring them.That and the the diesel flywheel will not fit into the Mitsubishi transmission.I don;t want to put the perkins back into the beat up mazda,but at this point I dont know what to do.I might be able to make an adapter or something.I'll look into that tomorrow when its light.

[tempforce]

the only subsitute transmission we've found that will fit without extra adaptor plats, etc. is the first gen rx-7 five speed. the clutches are the same.

[gearhead]

except that that transmission is RWD...not 4wd.Besides, I already have a diesel bell housing and tail shaft bolted onto a rx7 center section.

[tempforce]

try to find a transfer case that mounts behind a normal transmission. i think they are called a orphan transfer case. lots of early 4x4's used them, and they had gear drive, instead of chain drives. i think the early cj-4 or 5's used them, they had about a 70-1 low range...

[gearhead]

divorced transfer case are the ones that are separate,married transfer cases are bolted to the transmission.

looked under both trucks and it looks like the tail shaft section of mazda transmission and the transfer case section of the mitsubishi appear to have the same bolt pattern.So Im gonna pull both transmissions and compare the two.worst comes to worst I could always use a divorced transfer case after the diesel transmission.

[tempforce]

thanks i couldn't remember the term, "divorced", i think that since they haven't been manufactured for a long time. we could call them a orphan as well.

like our trucks are red headed stepchilds and orphan's to the automotive world....