Late model 3B or an 11B? (1 Viewer)

[atuclb]

Hi guys. A new member from Australia here. I've just bought an '84 BJ42 LX and waiting for it to be transported to me.

Photos of the car show that it has had an engine swap at some time and it looks either to be a late model 3b or an 11b with an aftermarket turbo. The previous owner has only had it for a short time and was not too mechanically minded, he did not do the swap.

I will be getting the car in a week (it's on a train somewhere in WA right now) but was wondering if anyone could tell me what engine it is from this picture before it arrives? It's the only photo i currently have.

Thanks!

 

[jzilla]

Not a 3b, looks like a 1hz?

 

[atuclb]

Jzilla,

Thanks for your fast reply. That was my first thought when I initially saw the photo but then I realised that the intake and exhaust manifolds have the centre after two inlets / outlets therefore it is definitely a 4 cylinder, not a 6 which the 1hz is.

 

[jzilla]

And the 3b thermostat housing...hmm I am sure someone else will reply soon that knows more.

 

[lostmarbles]

Welcome atuclb.

Well this is claimed to be an 11B and they sure do look similar:


(Dowloaded from a Google image search)

Just a slight difference in the intake manifold (which I've noticed Toyota often vary between different models anyway).

Rob/RaddCruisers is interested in putting an 11B in a 4runner so if this BJ42 has one in it already with the H55 5-speed box it'll probably answer all his questions. (See the last few posts in this thread: https://forum.ih8mud.com/diesel-tech-24-volts-systems/512179-help-real-time-2.html#post7267604)

Unusual transplant ... but the power output of the 11B with the turbo will probably exceed what the original 3B produced.

Enjoy!

 

[atuclb]

Thanks for the welcome and your suggestions lostmarbles.

Since originally posting I have done some digging around and believe that the 11B does not have glowplugs due to being a direct injection. Is this correct? I'm sure that this engine has glow plugs.

I'll be sure to find out in by the end of next week...

 

[amaurer]

Its a 3B. Yes you can see the glowplugs and more clearly the lack of a glow screen on the manifold.

 

[lostmarbles]

.....
Since originally posting I have done some digging around and believe that the 11B does not have glowplugs due to being a direct injection. Is this correct? I'm sure that this engine has glow plugs..............

You're right. If it's got glowplugs then it shouldn't be an 11B.

Its a 3B. Yes you can see the glowplugs and more clearly the lack of a glow screen on the manifold.

It's too blurred for me to be sure of whether I'm seeing glowplugs there Drew.

Odd valve cover for a 3B though isn't it? And the valve cover is a perfect match for the 11B I posted as far as I can see.

 

[amaurer]

You're right. If it's got glowplugs then it shouldn't be an 11B.

Fixed a typo for ya.

It's too blurred for me to be sure of whether I'm seeing glowplugs there Drew.

Odd valve cover for a 3B though isn't it? And the valve cover is a perfect match for the 11B I posted as far as I can see.

Well I can see the vague outline of a bus-bar like structure near the valve cover... the fact that I can see the injectors fair far away on the other side of that heater hose hes got soaring through the middle there means it couldn't be a return line. Ergo, must be plugs.

Later 3Bs got that valve cover. Look in your EPC for a 1990 BJ60, GEN countries, for example. (Apparently all later-model B-type engines go a cover like that)

 

[lostmarbles]

Fixed a typo for ya.



Well I can see the vague outline of a bus-bar like structure near the valve cover... the fact that I can see the injectors fair far away on the other side of that heater hose hes got soaring through the middle there means it couldn't be a return line. Ergo, must be plugs.

Later 3Bs got that valve cover. Look in your EPC for a 1990 BJ60, GEN countries, for example. (Apparently all later-model B-type engines go a cover like that)

Thanks. So here's a pic of one of those late-model 3B engines (which I'm totally unfamiliar with):

 

[BreckenridgeCruiser]

Does the 3BII look like this? I thought it might, but I couldn't find a picture of one.

 

[atuclb]

Thanks for all of your help so far guys. I believe that alot of the MWB (BJ73/74's) came with later model 3B engines in Australia therefore there are a few around to replace original motors. I will hopefully be seeing this car in person by Friday this week so I can confirm then but it does look to definately be a 3B.

If anyone wants any more photos of it let me know, I'll be happy to oblige!

PS, is there any way to tell roughly what year an engine is made in?

THANKS.

 

[amaurer]

Does the 3BII look like this? I thought it might, but I couldn't find a picture of one.

3BII's may have this valve cover, but that feature alone doesn't make it a 3BII. Same thing with the rotary pump.

The signifying feature for a 3BIIs is, to my knowledge, are:
* Y-shaped exhaust manifold.
* No "side cover"
* Vacuum pump on left side, beneath rotary injection pump

EDIT: This is one of the only pictures I've seen of a 3BII, Snailtrail posted it here: https://forum.ih8mud.com/diesel-tech-24-volts-systems/407502-3b-ii-3b.html#post5810307

Looks like it does indeed have this style valve cover.

Also note that the vacuum pump is located under the injection pump, not on the alternator.

Crushers posted a pic of the manifold once but I can't find it.

EDIT #2: Found it. 3BII is the oddball on the bottom.