13bt dual crank pulley question

[CRZR45]

I’m trying to get the AC kit installed and it looks like the pulley for the 13bt is wider bolt pattern on the crank than the 3b. So my question is does anyone have a pic of a 13bt with the dual pulley (3 belt groves instead of 2 belt groves) . A 3b11 might have same crank and thus the right pulley as well? Anyone been down this rabbit hole yet? Pic of pulley that has too small of a pattern up against my single pulley .

 

[jblueridge]

Looking at parts diagrams and searching, it looks like the 13BT pulleys were used on FJ6*’s.

 

[CRZR45]

Ohhh nice find! I’ll dive into that rabbit hole and check my fj60! THANKS!

 

[CRZR45]

FJ 60 is different or at least my 1985.

 

[jblueridge]

Check diagrams on Partsouq.

 

[CRZR45]

I did. shows one but NLA. guess I need someone with a 13bt with AC to take a pic of crank pulley setup.

 

[Eurasiaoverland]

There is confusion/misunderstanding here.

The 13B never had a 'dual' crank pulley. The very last 1995+ 3BIIs, 14Bs and all 15B-F/-FTs had dual belt pulleys, but these were much narrower belts and were never used on a Landcruiser.

The bare metal pulley you show in your pictures is not an original part and is the source of the problem. Not the 3BII hardware. How does it attach to the crankshaft harmonic balancer pulley?

The black single pulley on the 3BII which you are comparing to the non original bare metal pulley is not for the AC compressor, it is a power steering belt pulley.

The 13B setup you show has an aftermarket compressor which in addition to not being an original NippnDenso compressor, is also not the correct design for the engine. So it's very likely that the AC compressor pulley does not correctly line up with with where the crank-mounted AC compressor belt pulley is meant to go. You also don't have the original AC compressor bracket and tensioner bracket, and those parts are not easy to find (though easier for the old stlye of engine like a 13B than the newer 3BII/14B architecture).

Here are the correct pieces for a 3BII / 14B. Single belt harmonic balancer/crank pulley 13470-58060, the AC compressor belt pulley 88451-25020 and the power steerining pump belt pulley. The first two items are still available. If the vehicle had no AC, the spacer disc was installed to make up for the missing AC compressor belt pulley.

This is the part you want, assuming an original ND 10PA15 compressor and mounting bracket.

This is what they should look like in profile.

The only thing I am unsure about is whether the 3BII/14B crank pulley will fit the 13B crankshaft. You could either buy and test, or take off your 3BII pulley and try it on the 13B. But the AC and power steering pulleys are common to both the 13B and 3BII, there is no difference in bolt spacing on the factory parts.

If you are fitting an AC system cobbled together from unknown/home-made parts, you will need to be your own engineer and make things line up properly. My 3BII came with a similar setup which I threw stright in the junk and then set about the long journey of finding the correct parts.

 

[CRZR45]

Thanks! I ordered the pulley and see if it works. For clarification I have a 13bt and am installing a aftermarket ac kit that’s made for a 3b so the compressor bracket bolted up perfectly and this pulley should align as the AC compressor has 2 groves to choose from. The silver pulley came with the kit and the black pulley in the pic is my 13bt one for the PS. This should get me going as I can customize it if needed to work with my setup. Thanks Again!!! I appreciate the help!
Jason.

 

[Eurasiaoverland]

Thanks! I ordered the pulley and see if it works. For clarification I have a 13bt and am installing a aftermarket ac kit that’s made for a 3b so the compressor bracket bolted up perfectly and this pulley should align as the AC compressor has 2 groves to choose from. The silver pulley came with the kit and the black pulley in the pic is my 13bt one for the PS. This should get me going as I can customize it if needed to work with my setup. Thanks Again!!! I appreciate the help!
Jason.

The confusion was on my side then. But glad I could help. Hopefully the factory pulley position works with your compressor. Just be aware that the factory AC V belt is 13 mm wide compared to the 17 mm of the alternator and power steering pump V belts.

If the spacing does not work out, you could always open up the new AC pulley on a lathe and weld it onto the power steering belt pulley - that is how mine came.

 

[Eurasiaoverland]

Looking at parts diagrams and searching, it looks like the 13BT pulleys were used on FJ6*’s.

Definitely not. They were only ever used on the B, 2B, 3B/3BII and 13B-T engines.

 

[joekatana]

Thanks! I ordered the pulley and see if it works. For clarification I have a 13bt and am installing a aftermarket ac kit that’s made for a 3b so the compressor bracket bolted up perfectly and this pulley should align as the AC compressor has 2 groves to choose from. The silver pulley came with the kit and the black pulley in the pic is my 13bt one for the PS. This should get me going as I can customize it if needed to work with my setup. Thanks Again!!! I appreciate the help!
Jason.

It is a aftermarket ac kit designed to use on a 3B and it works and fits perfectly on the 3B’s . OP is trying to fit the 3B kit to a 13BT

 

[jblueridge]

 

[Eurasiaoverland]

View attachment 3902992

When it states 'BJ60, HJ60, FJ6*' it means (in this case) the 60 Series platform in that particular market. There need only be a single model (as in the N American 60s) which uses the part for it to show up. A single click will dispel the confusion.

 

[Eurasiaoverland]

It is a aftermarket ac kit designed to use on a 3B and it works and fits perfectly on the 3B’s . OP is trying to fit the 3B kit to a 13BT

But the 3Bs and 13Bs use the same power steering pump crank pulley, so how can the bolt spacing be different? Was there a different pulley for very early 3Bs which had no power steering?

EDIT: did a bit of searching and I'm guessing this is for 40 Series 3Bs and very early 60 Series (pre-82 or maybe pre-84) 3Bs, as after that they defintiely used the power steering pulley shown by the OP.

Looks like 81/10 was the cuto-off for a dual crank pulley on the early 3Bs.

 

[joekatana]

But the 3Bs and 13Bs use the same power steering pump crank pulley, so how can the bolt spacing be different? Was there a different pulley for very early 3Bs which had no power steering?

EDIT: did a bit of searching and I'm guessing this is for 40 Series 3Bs and very early 60 Series (pre-82 or maybe pre-84) 3Bs, as after that they defintiely used the power steering pulley shown by the OP.

View attachment 3903028
Looks like 81/10 was the cuto-off for a dual crank pulley on the early 3Bs.

Unfortunately you are wrong as I personally installed 2 of these kits myself on 70 series that came with a 3B . The later 3BII models with rotational ip share more parts with the 13BT so a pulley from a 3BII found in the 1990 or newer 7x models in Europe is what is probably needed here .

 

[Eurasiaoverland]

Unfortunately you are wrong as I personally installed 2 of these kits myself on 70 series that came with a 3B . The later 3BII models with rotational ip share more parts with the 13BT so a pulley from a 3BII found in the 1990 or newer 7x models in Europe is what is probably needed here .

I disagree, and so does the Toyota parts catalogue. 13477-60030 is the 1982-on power steering pulley for the crank, it was used on 3Bs, and 13B-Ts, and also the 3BII until they stopped BJ production in 1989. I have Beno's old piece from his 1985 (I think) old 3B and it fits each of my 3BII/14B/15B crank pulleys. And as the OP shows, it does not fit the bare metal piece he has.

EDIT: I'm starting to suspect that the OPs bolt on power steering pulley might be from something else, and it looks different to 13477-60030 on his third picture in that is appears to be wider than the crank pulley, while on mine it is narrower. That said, I don't know if the earlier B engines (pre 1988) had smaller diameter crank harmonic balancer puleys to the later engines like the 3BII and 14B.

BTW There are no 1990 (talking construction date) or newer BJs with any B engine.

 

[Eurasiaoverland]

So here is the (outer side to outer side) bolt spacing of opposing holes in the AC pulley 88451-25020. It's 97 mm. This came on 1982+ BJs and other platforms.

 

[joekatana]

I disagree, and so does the Toyota parts catalogue. 13477-60030 is the 1982-on power steering pulley for the crank, it was used on 3Bs, and 13B-Ts, and also the 3BII until they stopped BJ production in 1989. I have Beno's old piece from his 1985 (I think) old 3B and it fits each of my 3BII/14B/15B crank pulleys. And as the OP shows, it does not fit the bare metal piece he has.

EDIT: I'm starting to suspect that the OPs bolt on power steering pulley might be from something else, and it looks different to 13477-60030 on his third picture in that is appears to be wider than the crank pulley, while on mine it is narrower. That said, I don't know if the earlier B engines (pre 1988) had smaller diameter crank harmonic balancer puleys to the later engines like the 3BII and 14B.

BTW There are no 1990 (talking construction date) or newer BJs with any B engine.

You can disagree all you want and look at all the diagrams you want . My supplier has sold dozen of these kits for Euro spec BJ7x models . I actually sold 4 of them in the past month and they will all bolt on perfect on BJ7x models with a 3B .

Hands on experience they call that I believe

 

[Eurasiaoverland]

You can disagree all you want and look at all the diagrams you want . My supplier has sold dozen of these kits for Euro spec BJ7x models . I actually sold 4 of them in the past month and they will all bolt on perfect on BJ7x models with a 3B .

Hands on experience they call that I believe

I'm of course not doubting your experience, I am just saying that a 3B in a BJ73 and a 13B-T will have the same bolt spacing. I have no vested interest in the outcome, I am only interested to see what's going on here and hope the OP can get his hardware running. The parts catalogue can be wrong very occasionally, but I don't think that is the case here as it would be wrong for many different models across different markets.

I think either the OP's engine is running non-standard hardware (perhaps fitted by a dealer), or the aftermarket piece is not drilled correctly. Hopefully he can post a measurement to solve it.

@CRZR45 is the engine in question really a 13B-T, or a BJ73 3B with a turbo as per your tagline?

 

[joekatana]

I'm of course not doubting your experience, I am just saying that a 3B in a BJ73 and a 13B-T will have the same bolt spacing. I have no vested interest in the outcome, I am only interested to see what's going on here and hope the OP can get his hardware running. The parts catalogue can be wrong very occasionally, but I don't think that is the case here as it would be wrong for many different models across different markets.

I think either the OP's engine is running non-standard hardware (perhaps fitted by a dealer), or the aftermarket piece is not drilled correctly. Hopefully he can post a measurement to solve it.

@CRZR45 is the engine in question really a 13B-T, or a BJ73 3B with a turbo as per your tagline?

Ok you seem to have a real interest here and trouble letting this go . I actually sold that 13BT to the previous owner of the op’s BJ73 . It came out of a JDM Bj74 that I briefly owned many years ago . As far as Euro spec go the 3BII (1990 and up) shares the crank with the 13BT and therefore also the flywheel and most likely the HB and front pullies . All the BJ7x Euro models from 1984-1989 run the smaller pulleys as delivered with this kit .