A/C Compressor: 60/62 Differences?

[Exiled]

My A/C has not worked since the diesel conversion. No problem from the time I picked it up around Xmas until very recently, but the Texas summer is here and I'm melting....

A/C was fully charged after the conversion, but the compressor was not engaging. I've been trying to figure out where the electrical issue is ocurring, without any luck. Then today I decided to jump the compressor so I could test it....bad idea! The compressor shrieks, my guess is that the magnetic clutch is buggered and that the 15+ yr. old compressor finally gave up the ghost.

So, I'll have to deal with the electrical short later, I need to replace the compressor. First, I did some research on the internet....

For most of you, replacing the compressor (new or used) is as easy as stating the year of your Cruiser, right? Well, no such luck for this exotic beast, I discovered the A/C compressor is part of the "local content" that adds so many quirks to a Venezuelan Land Cruiser.

So, I have no way of knowing what kind of A/C compressor I have, and no way of knowing what the US equivalent would be. Can someone enlighten me on the differences between the A/C compressor of the different years?

Also, I'm leaning towards buying new, are these things available remanufactured from Toyota or places like Napa would be OK? I don't have an open budget but if the consensus is that buying new is the best option, I'll probably go that way.

Suggestions/thoughts/ideas welcome, this is my DD and it's hotter than Hell's furnace in the Lone Star State!

 

[cruiser_guy]

There should be markings on the compressor somewhere. My compressor is from an FJ60 and it is equivalent to many different vehicles including an early '90's Acura which is what I ordered when I replaced it. Do not throw the old compressor away as you probably need the pulley from the front to get the right offset for belt installations.

The reason that your A/C is not coming on is that the A/C circuitry is looking for a coil signal to tell it that the engine is running and with a diesel as you know there is no coil! If this were a Japanese built 'Cruiser I could tell you EXACTLY what you need 'cause I needed the same thing when I installed the A/C from an FJ60 into my BJ60. If it is the same it will be the A/C amplifier, VERY hard to find. I may be able to locate one here from a wrecked '60 series since a few were diesel with A/C.

 

[Exiled]

There should be markings on the compressor somewhere. My compressor is from an FJ60 and it is equivalent to many different vehicles including an early '90's Acura which is what I ordered when I replaced it. Do not throw the old compressor away as you probably need the pulley from the front to get the right offset for belt installations.

The reason that your A/C is not coming on is that the A/C circuitry is looking for a coil signal to tell it that the engine is running and with a diesel as you know there is no coil! If this were a Japanese built 'Cruiser I could tell you EXACTLY what you need 'cause I needed the same thing when I installed the A/C from an FJ60 into my BJ60. If it is the same it will be the A/C amplifier, VERY hard to find. I may be able to locate one here from a wrecked '60 series since a few were diesel with A/C.

D'oh!!!!! Any chance you can get me a parts number? I can try to order it from Japan if I know what the part # is....I'm going to need Cruiser Dan's help with this one...

That explains why I tested all the connections and couldn't figure out why the compressor would kickstart.

I've had problems with the A/C amplifier before, when I was still running the 3F...

 

[zebrabeefj40]

Could a tach signal converter that runs off the alternator work in this situation? I think I saw in an Autometer catalogue where the alternator could be used to determine RPM with a converter device Autometer sells... or maybe I've been sniffing too many welding fumes. I'll have to see if I can find it again.

Nick

 

[cruiser_guy]

A/C amplifier part numbers are as follows: BJ60 88650-90A03 and for the HJ60 88650-90A04

I'm not sure what the differences are between the BJ and the HJ amplifiers and I would think both would work for you. Like I say though, they are either unavailable or discontinued.

If CDan cannot get one I probably can find a used one in Central America.

 

[Texican]

Why not use a generic Sanden like I use on the FJ40 conversion's I do? Skip the amplifier and go from the ac switch on the dash to a relay to control the compressor? THere is a slim chance it will bolt into the brackets you have now.......
Butch

 

[Mike S]

Henry

I replaced the original FJ60 AC compressor on my 60 with one from a 62. They are same size mounting, etc. The only difference that I could detect was that the AC compressor from th eFJ62 had a slightly different departure angle for the hose that attaches to the front - it points forward rather than towards the PS fender well. It hooked right up w/o problems.

I would buy new OEM - and new hoses as well.

PS, I you need a condensor, I have on in my garage that is like new. Just let me know.

M

 

[cruiser_guy]

Skip the amplifier and go from the ac switch on the dash to a relay to control the compressor?

Sounds like a good idea on the surface but the A/C amplifier serves a useful purpose by anaylizing the pressure switch etc. etc. to ensure that the evaporator doesn't freeze up and that the A/C doesn't run 100% of the time.

 

[Texican]

Sounds like a good idea on the surface but the A/C amplifier serves a useful purpose by anaylizing the pressure switch etc. etc. to ensure that the evaporator doesn't freeze up and that the A/C doesn't run 100% of the time.

Don't think that will be a problem here, maybe fall and spring, but not in the summer......
Butch

 

[Mike S]

Henry

With the 4BT, why not go GM? There must be a GM pump and bracket that will fit. Then you just need a custom hose - GM to Toyota. Easier than stressing over the barely adequate TLC part, since GM figured out AC a long time ago.

In every GM vehicle I have had, you could freeze a steak on the back in midsummer.

M

M

 

[cruiser_guy]

Henry

With the 4BT, why not go GM? There must be a GM pump and bracket that will fit. Then you just need a custom hose - GM to Toyota. Easier than stressing over the barely adequate TLC part, since GM figured out AC a long time ago.

In every GM vehicle I have had, you could freeze a steak on the back in midsummer.

M

M

I agree with running the pump and bracket that fit the motor but that still does not overcome the control of the whole mess. That's where the A/C amplifier comes in. Since the pump is either on or off it makes sense to use the Toyota stuff to control and the engine compatible pump that needs only one wire to work for all that since it works with the rest of the crap under the dash.

btw. I had condensation on the OUTSIDE of my windows in Tapachula, Mexico a few weeks ago it was so cold inside and that is all Toyota!!

 

[dieselcruiserhead]

Henry didn't read the whole thread but check either the archives of, or there is a file on the 4BT yahoogroups site (click my sig) and it has all the part numbers for running the OEM serpentine belt AC system. That is what I would do, use whatever the compressor is (compressor is a compressor) then all the rest of your OEM 60 series AC system. If it is used and you used to use R12 then recover it and the oil first, otherwise replace O rings, hook it up, and go. Not that hard a job, I installed AC into my canadian spec HJ60 for the new owner before he picked it up. He lived in Houston, still works great to this day. It was also little more complicated with the 24 volt and I had to use a 12V BJ60 "amplifier" (the circuit board) because there was no idle-up function (or need for it) with the diesel, exact same situation with yours. I was able to source the 12V BJ60 amplifier stateside from any toy dealer, I think it was $80. HTH's...

 

[dieselcruiserhead]

read the thread... or take Butch's advice and skip the amplifier but you lose the safety devices that prevent ice up etc... I prefered using the BJ60 amp. Differeence is HJ60 is 24V and BJ60 is 12V, hence why you want BJ60. Again I'd use the OEM cummins AC bracket numbers. Or, see if you can find a Gen 1 '89-'93 Dodge and pull the brackets, compressor etc all off that. Then go to Cummins to find the right part number for the Serp belt, they have a part number for a 4BT with the OEM AC bracket...

Also profitss has rigged a AC bracket with its own belt, you might want to call them about this.... But that is a second route IMO... But would work equally as well...

 

[Exiled]

OK, so some clarification. I have the original A/C compressor already installed with a custom bracket on the 4BT, everything's routed correctly. My two issues are:

1. A/C compressor won't engage
2. The compressor is fried

I can replace the compressor, that's not a big issue. CDan quoted me a good price for a new one, and I'll go that route.

The A/C amplifier issue is a tougher one. The part is no longer available from Toyota, so I need to get this used. Cruiser_guy, if you could source one for me, I'd be in your debt, I *really* need to get my Cruiser back to daily driver duties but I need the A/C.

If I can't source a used one, then I'll have to figure out how to bypass the amplifier completely as Butch suggested. This might be a challenge for an electrical moron like me, but I'll figure it out.

Next step is to buy the compressor. The second step is to source the A/C Amplifier....this one looks like a doozy.....


Henry
Sweating it out in Central TX

 

[dieselcruiserhead]

Henry I jumpered my FJ60 amplifier and that worked as well. Not as pretty and I believe some of the over-icing functions may have been bypassed. If you can't find the part, take texicans advice and bypass all together. Should be fine...

Just checked and the part number cruiser_guy posted is correct, use the BJ60 one. I belive there is also another part number for it possibly. This was 3-4 years ago but I was able to get the part stateside. Out of texas actually. YOu might try one of the canadian guys or try a toiyota dealer in Canada like ENS toyota, they might be able to source it. Or specter if CDan can't find it. It was very nice getting it to run as OEM designed using the BJ60 amplifier. But bypassing all together also worked just fine, no ice up for the 2 months I ran it that way easily. This was on the HJ60 that I installed 12V ac into with a diesel, just like your setup...

 

[Texican]

Hook it up wiithout the amplifier, simply run a wire from the amplifier plug, the one that gets hot with the push button switch to a 30a relay, then to the AC clutch.....if it ices, move the lever to draw in fresh air, I will assure ya' that the 100 degree plus air will thaw the ice.........although I would almost bet it never ices in Round Rock in the summer.....

Replace the drier and flush the system while you are there.......
Or bring it to Bonham and I'll do it..........I do several per week.
Butch

 

[Godwin]

Henry

I replaced the original FJ60 AC compressor on my 60 with one from a 62. They are same size mounting, etc. M

Not the ones I've just compared. The compressor on the '88 3FE is not working so I pulled the compressor from the '86 2F. Mounts are completely different, now way they will bolt-up interchange.