Perkins 4.236?

[FJ40Jim]

Another shop has a Perkins diesel and torqflite trans they pulled from a customer's wrecked stepvan. They don't want it, I can have it for scrap value. The engine is a 236CID (3.9L) naturally aspirated 4cyl. Tranny is a conventional (non electronic) torqflite 3-speed auto. It is complete with engine wire harness, saginaw PS pump, delco electronic alternator, starter motor, etc.

The engine is only rated at around 77HP. A turbo raises power to 110HP, still not a lot. A torqflite is gonna suck up a lot of that power.

Do I wanna put this in a FJ40/45 Cruiser? Price is right, size is similar to 3B/4BT/4BD1. Not a lot of them in roadgoing vehicles in N. America.

Discuss amongst yourselves...

 

[doug720]

Tough little motors, but Perkins is very proud of their parts, so they charge accordingly, and according my buddy who has one, parts are getting difficult to find for some of the models.

Price is right, check the parts you need and see if if it pencils out.

Doug

 

[Dougal]

Rated power will be at 2,500rpm or so. That's why it reads low like a 4BT. No big problem to increase it.

 

[ToyRoverlander]

Also used in lots of forklift trucks. When I still worked at Hyster we chucked out a couple of brand new 4.236s. Such a shame.
The have a very flat torque curve. Max torque something like 250nm at 1600rpm and 240nm at 1000rpm or something like that.

They were also used in south african Series3 landrovers.

 

[FJ40Jim]

Good point Doug. Found an output chart showing 77HP max continuous power @ 2400, with power continuing to increase off the top of the RPM chart, 84HP @2800.
Peak torq shows ~185ft/lbs@1600RPM, staying above 175 from 1000 to 2400.

Turbo on a diesel engine tends to maintain the shape of the curve, just raising it in the areas where boost is available, so that is promising.

I don't have any pics of this lump, but I'm wondering what the back of the engine looks like with the TF adapter plate. If it looks like a domestic V8, then it may be possible to bolt on a domestic BH and manual gearbox. Buying the SAE #3 clutch housing and #3 BH to SM465 from Perkins would be prohibitvely expensive.

 

[Dougal]

The Cummins 4B engines with inline pumps are going to be pretty much equivalent for power and fuel consumption. The Isuzu 4BD1 and VE pump 4BT's have timing devices to advance injection timing with rpm so will give slightly different results.

All the turbo sizing for engines like this is directly transferable. I'd expect the rear housing to be an SAE pattern.

 

[2HH55F]

Perkins 236

In South Africa the early 75 series cruisers were fitted with an ADE 236, (Atlantic Diesel Engines) IMMSMC, which is a direct copy of the Perkins motor.
I had one and it was without doubt unstoppable, all around Botswana loaded to the max with trailer etc.
That motor is an OX, yes sounds like a tractor but whether sitting at 120kph or grinding through deep sand, was economical and that flat torque curve made it unstoppable in the bush

In an FJ with all the bits you describe you will have an unstoppable truck with a tractor engine , just cut a hole in the hood and run the exhaust straight up

 

[FJ40Jim]

So far nobody is telling me this is the worst idea ever. Since Toyota used this engine, it must have some redeeming qualities.
I'll tell them not to discard the engine yet. I'll hafta stop by and take a second look at how the BH is configured, get some pictures....

 

[Boxerdog55]

Better late than never I suppose, but I have a Ford NP435 on an SAE 3 bellhousing just removed from a n/a 4.236. Engine serial # says 1985 vintage. Just so happens I want an auto behind mine. You anywhere near Portland, Or? Wanna trade? Internals look perfect, all low speed operation on a Jacobsen F10 greens mower. The Perkins in mine is going in a B2600 with a lot of stuffing and cramming involved.

 

[FJ40Jim]

That other shop still has the perkins w/ torqflite & adapters. I'll contact them and see if a trade is possible.