Mazda RF diesel? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 30 (permalink) Old 10-14-2009, 07:10 PM Thread Starter
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Smile Mazda RF diesel?

Hello all,

Just found out about this engine recently, and as the owner of an '89 Mazda B2200, I'm interested in possibly converting my truck over to this powerplant.

According to Wikipedia:

"RF
Naturally aspirated SOHC, 2 valves-per-cylinder, displacing 1998 cc with square internal dimensions of 86 mm bore and 86 mm stroke diesel RF engine was one of Mazda's more popular diesel engines. This powertrain is close related to the Mazda petrol FE engine sharing the same bell housing patterns and other block fixtures and dimensions.

Used also in the 1984-1986 Ford Tempo - Mercury Topaz, the 1984-1987 Ford Escort - Mercury Lynx and pre-2001 turbo diesel Suzuki Grand Vitara
Used in the Mazda Bongo and 1999 Mazda Demio
"

From that passage, it almost sounds like a "drop-in" fit, but is it really?

If you know anything about this engine, please enlighten me.

Thanks,



Elvis
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post #2 of 30 (permalink) Old 10-15-2009, 02:26 AM
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From looking at a diesel escort I noticed that the injection pump was driven off of the back end of the engine, and the intake manifold went past the back of the engine, so basically it would not work in a rear wheel drive application. That is not to say that they didnt make this engine for rear drive applications.

96 Chevy K3500 6.5 diesel with 230k miles
4" lift 4" exhaust and PMD heatsink

And a DT466 going into a 2.5 ton 6x6 army truck

Quote:
put it in 3rd. gear & nailed it & it took off like a missile for about 50 ft. & then the turbo exploded kinda like a missile!!!
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post #3 of 30 (permalink) Old 10-15-2009, 06:42 AM Thread Starter
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Smile

Richarr9,

Thanks for the info.
This may asking a bit much, as I don't know the extent of your automotive knowledge, but did it even look like the gas engine it's supposedly derrived from?

BTW, failed to mention this earlier (sorry people), but it appears they now make a 2.2L version and that would be the one I'd like to use.



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post #4 of 30 (permalink) Old 01-02-2010, 11:24 PM
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I have a bit of information on these motors that you are talking about. For starters, I am planning on swapping a mazda RF diesel into my 86 B2000, which is essentially the same as your 89 B2200. The B2000 came stock with the FE 2.0L gas engine. The B2200 came with the F2 2.2L. The older b series pickups (78-84) had an optional S2 (also came in some Rangers) that was 2.2L. Overseas, there is also a R2 2.2L diesel block, which, just like the FE/F2 engines, is a stroked version of the RF.
There are several hurdles when swapping the RF/R2 into a B series pickup. The first you mentioned is the intake and something will have to be fabbed up. Now there is a RWD intake that does bolt onto the head which would solve some issues. Another issue is the flywheel for the escort will not work with the clutch for the B series. The B series flywheel is 6 bolt, the diesel is 8 bolt. What you can do is take a flywheel from a kia sportage 95-2002 (which uses a mazda FE3 block, a twin cam FE engine) and use it on the RF crank. This will allow you to use the B series clutch/pp.
As if there were not enough issues, you would have to fab up a new exhaust manifold as well. Reason being is that the stock RF exhaust manni points down directly where the starter sits.
Now, for the good news. The transmission, motor mounts, and accessory brackets DO bolt on no problem. The rest of the issues that is involved with swapping to the diesel is just wiring the glow plugs, running fuel line, and any other goodies about going from gas to diesel.
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post #5 of 30 (permalink) Old 01-02-2010, 11:26 PM
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I forgot to send a link to my build, which includes pictures and other goodies that I am including in my build.
http://www.mazdatruckin.com/vBulleti...gh-here-d.html
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post #6 of 30 (permalink) Old 01-04-2010, 01:52 AM Thread Starter
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Smile

Emjay,

Thank you!
I was concerned about the tranny bolting up, so its nice to hear that no adapter is needed for that, or the motor mounts.
Do you know if the RF has the exposed front cam bearing, like where the distributor bolts onto our gas engines?
That's another concern of mine, as my F2 has been an oil leaker, due to that "feature", for the past 17 years.
I also remember the older diesel engine you mentioned.
It was made by Toyo Kogyo and we had one of those trucks at a diesel shop I used to work at....took Isuzu filters!

Anyway, I'll check out the link, and thanks again for your help.



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post #7 of 30 (permalink) Old 01-04-2010, 03:56 AM Thread Starter
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EmJay,

Should've checked out your link first.
I see now that the cam bearing is covered.

Thanks again, especially for the link.



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post #8 of 30 (permalink) Old 02-21-2010, 07:33 AM
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Well, an update. The engine is not in the vehicle running yet. Check on the above link to see how I'm overcomming some of the mentioned articles. Just a taste,
Exhaust Manifold
Before:

During alteration:

After:


[i]Intake Manifold[/1]
Before:

During:


After: (note still cleaning up and smoothing out surfaces)


And how it sits on the head:
Before:


After:
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post #9 of 30 (permalink) Old 02-21-2010, 01:46 PM Thread Starter
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...by the way, you have a wonderful looking piece of property, too.
Reminds me of out here!

As always, appreciate the updates.



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post #10 of 30 (permalink) Old 02-26-2010, 01:39 AM
 
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Hey all, I am new here but it sounds like you should have gotten a 2.2 S2 perkins instead. It would bolt right up to your 2200 tranny. Good luck!
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