3B Balancer Question

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Sep 1, 2007
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Location
Palmer, Alaska
Anybody know if a 2H harmonic balancer will fit on a 3B?
 
A 2b should fit don't know about a 2H
 
Does a 2H have an actual harmonic balancer? 3B only have plain pulleys.

EDIT: From what I can see in the EPC, no, I don't think it'll work. It looks like 2H's have a true harmonic balancer, and its held on with a nut onto the threaded crankshaft. 3Bs have a plain pulley (no damper) and they're held on with a bolt instead of a nut.
 
Thanks for the reply Amaurer, actually 3Bs do have a balancer it's just very small. The parts pics I have seen don't represent it very well, it does just look like a pulley, but it does bolt on with a single large bolt and it appears to be the same size. I am wondering if a 2H balancer will work because they have the extra pulleys for power steering and A/C. I found a source for the 2H balancers in OZ. Just comparing pics they look like they are the same size but I need to do more research. Sorry about misspelling "balancer" in the tag line, it was very late.
 
3B must have the extra pullies available also since the 7*s came with power steering and AC also I think JDM bj60s also had the same options and my 83 BJ42 has power steering not sure if it is a single belt pulley.
 
Thanks for the reply Amaurer, actually 3Bs do have a balancer it's just very small. The parts pics I have seen don't represent it very well, it does just look like a pulley, but it does bolt on with a single large bolt and it appears to be the same size. I am wondering if a 2H balancer will work because they have the extra pulleys for power steering and A/C. I found a source for the 2H balancers in OZ. Just comparing pics they look like they are the same size but I need to do more research. Sorry about misspelling "balancer" in the tag line, it was very late.

Actually, no, 3B do not have a balancer, of any size. We've hashed this out before on this board, but there is no damper in the 3B pulley, its just a plain pulley.

Its pretty obvious if you have a 3B pulley in your hand, but I know you're a bit of a skeptic (which is fine), so here is a bit of evidence from Mr. Toyota himself:

For a 3B:

Code:
13471 [B]PULLEY, CRANKSHAFT [/B]
13470-56100 B, 3B..BJ4* 1 $876.70 
13470-56101 B, 3B..BJ4* 1  
13470-56140 B, 3B..BJ40, 42, 45..(V, PIC)..(GEN, ARL); W/COOLER 1  
13470-56170 B, 3B..BJ4* 1
ToyoDIY.com

For a 2H:

Code:
13407 [B]DAMPER SUB-ASSY, CRANKSHAFT [/B]
13407-68010 2H..HJ47 1 $579.90 
13407-68011 2H..HJ47 1 $409.81
ToyoDIY.com

Specifically, notice the different nomenclature for the parts.

Previous discussion about the "balancing" of 3Bs:
https://forum.ih8mud.com/diesel-tech-24-volts-systems/260118-3b-noise-undiagnosed.html
 
Last edited:
Well, I have removed the balancer, and it is a balancer, there is a rubber ring in it, that preety much means it's a balancer. Now I do know it is not the original part, but it is not the newer style with 6 bolt holes, it only has the two for removing it. So whatever it came off of it had the same crank end as a 3B. I don't know what to say about the nomenclature, there are several numbers listed, it is possible that one of them is a balancer, or maybe a 2B used a balancer and that's what I have. If I get a chance when I get home I will take a picture of it, maybe that will convince you that I know what I am looking out. Anyway, I may have sourced a 13B balancer/pulley in OZ so hopefully I can get what I need. Thanks for the info.
 
Well, I have removed the balancer, and it is a balancer, there is a rubber ring in it, that preety much means it's a balancer. Now I do know it is not the original part, but it is not the newer style with 6 bolt holes, it only has the two for removing it. So whatever it came off of it had the same crank end as a 3B. I don't know what to say about the nomenclature, there are several numbers listed, it is possible that one of them is a balancer, or maybe a 2B used a balancer and that's what I have. If I get a chance when I get home I will take a picture of it, maybe that will convince you that I know what I am looking out. Anyway, I may have sourced a 13B balancer/pulley in OZ so hopefully I can get what I need. Thanks for the info.

3B's do have a small rubber ring, so you're probably looking at the original pulley.

... but that rubber ring does not serve as a balancer. You'll notice its extremely stiff, it doesn't really "give" at all. And as you said yourself, the rim mass extremely small. Stiff rubber + small rim mass = essentially zero damping.

But think whatever you want, I don't want to argue with you.
 
All right, why would it have a rubber ring in it if it wasn't there to act as a damper? I really am not trying to argue but that really doesn't make any sense. It is a small engine so I would'nt expect it to have a big balancer but I have never seen a diesel engine, even a small one, not have something for a balancer. Even the smallest 2 cylinder Yanmars that I have seen have a tiny balancer. Even if it isn't called a balancer I think the rubber ring must act in some way to dampen the engine harmonics.
 
The balancer/pulley with two bolts is the older one, used to maybe '81/82. The 6 bolt one is used later and accepts the accessory pulleys.
 
Thanks cruiser_guy, I just received an email from a parts exporter in Japan that can sell me a new balancer for under $150! That sounds preety good. Interstingly they also sent me a picture with specifications for the balancers, they are two possiblities. One is 164 mm diameter the other is 182 mm, I think I need the smaller one but maybe somone can measure theirs and post it here. By the way, both have rubber rings going all the way through the and are clearly balancers but were both labeled as pulleys by the parts guy helping me. I tried attaching the PDF but I am not sure it worked.
 

Attachments

Some part numbers:

HB1216 is a Toyota 13470-56171
HB1217 is a Toyota 13470-56181

These may be after market, I will find out.
 
Hello everyone.

My name is Luis , I'm from Panama city, Panama

This discussion was severals years ago, and was endeen with no conclusion, but it is the only one with the information I'm looking for.

I'm restoring a 1980 BJ40, and with the overhaul of the B engine I will install an air conditioner and power steering pump. The crakchasft pulley I need is the Toyota 13470-56171.....there is suppose an after market from Dayco (Precision Parts) Part Number # HB1260, that match the dimmentions of the original (50mm nose, 34.6mm crank bore, 164mm diameter)

I have been looking and searching for all over the world with no luck.

Is there any place where I can find a used OEM or an aftermarket replacement from another brand ??

Thanks in advance for the support !!

Luis
 
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