Mystery plus ignorance: May 1979 with A/C bracket and lower radiator hose union?

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wimberosa

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This topic concerns the lower radiator union pipe (with heater split off) and the CORRECT hose that connects its lower end to the radiator itself (the radiator pipe side hose). Seems straightforward enough but something doesn't seem to match up with the parts catalog and I have a bracket that may be an A/C compressor bracket.

This has thrown me off such that I've now bought the incorrect radiator hose.....TWICE. My FJ40 was built in May of 1979. It does NOT have A/C and I don't suspect that it ever did. It DOES have the oil cooler and it perhaps has an A/C bracket setup.

The union pipe in this area and this situation USUALLY apparently looks like this.
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However MY PIPE looks like this.
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Here's a pic of that side of the engine bay with it mounted.
1731791699112.png

Now whenever I was ordering this radiator side hose (the missing hose area I've outlined in Red)....I was always answering the question in my head..."No this does not have A/C" and thus the correct hose is 61050. However, if you look at the area I've circled in yellow...it appears this may be an A/C compressor bracket. Now that I understand the union pipe difference (as of today), I'd say it definitely has the A/C style union pipe. If the correct answer is "this is an A/C setup without the compressor then the correct hose is probably 61070.

See following part numbers. Note: Perhaps there is some editing mistake here but normally when I see "Cooler" we're talking about the oil cooler... But here I think they are really talking about the A/C cooler.
1731791189646.png


Bottom line I have ordered 61050 multiple times now (accidentally) but really I have a setup that seems to warrant hose
61070.

Two final questions and what is mysterious to me.
1) If I need 61070 hose then who might have it? (its not SOR)
2) Is this a factory setup?
@OGBeno
I'm not sure if A/C was a dealer add-on and they were just putting in brackets for an A/C ready setup.
Do other 1979s have this configuration even if they are not A/C or did they do something odd on the day
mine was produced? Note: I have seen no other A/C parts....no condenser...no hoses....no mods to the cowl for entry into the cab....nothing suspiciously A/C other than this. There IS an electrical connection in this area for A/C.


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Only one I see for 2F that year with cooler with heat
Is #16577-61021
I could swap out and go to that straight T style pipe if absolutely needed. At this point I would like to understand this mystery better and if anyone else has a 1979 with the style pipe I have...and what appears to be an A/C compressor bracket.
 
just re-read the post
my guess is your engine was replaced with an engine from a 60 series, that would explain the 60 series bracket and pipe along with the 3 groove crank pulley
the rad should be wider than a non a/c rig
I have a 1980 with a/c and IIRC the lower hose is special as it is for the wider rad. many, many years ago CDAN had to special order it for me to get the correct one, I can look at mine but I think it has the shorter pipe.
the hose is special as it needs to match the wider rad and clear the a/c belt
the wire harness came with all the plugs, they just weren't used on all rigs
 
my guess is your engine was replaced with an engine from a 60 series, that would explain the 60 series bracket and pipe along with the 3 groove crank pulley
All things possible....but there is another example of this on another mud members FJ40 in the may 1979 timeframe. Nippon-denso A/C bracket. Same radiator union pipe as mine. That 40 has the factory a/c. I think there is just some parts missing in the catalog list for this setup. A/C was new in 1979 and potentially we're missing a page or documentation during the new A/C option introduction. The 3 groove crank would be necessary for this A/C setup ... so that fits I believe. Here's how mine would have been belted if it had the A/C compressor.

i'm wondering if this was shipped from the factory for A/C to be a dealer add/on or perhaps something happened in the lifetime
of this truck to have the A/C deleted (leaving the bracket). So I'm beginning to think what I have is stock oem in the may 1979 timeframe.
1731817150845.png
 
easy to check the 2F serial # on the block to see if it is a 1979 engine or a later version
does your rig have PS? no US spec rig that I know of came with a/c without ps stock
the stock a/c rad is wider than non a/c rigs, measure across from bolt flange to bolt flange
dealer installed a/c did not have a 3 groove crank pulley and would not have had a compressor mount motor mount, they used aftermarket stuff, not OEM
the battery mount is different in a/c rigs versus non for compressor clearance
 
Last edited:
@3_puppies I've confirmed in the past that the engine serial lines up with something produced in May of 1979. I didn't directly say this previously but I truly believe this is an original engine.

Interesting points on the radiator brace, battery and radiator length side to side. A couple of further confirmations. Take a look at the radiator brace part numbers. You'll notice here that there is an overlap of parts and they are using the "W/Cooler" term again. So I am in agreement that they must have changed the battery mount (which the brace connects to) and the brace itself to clear the A/C compressor.
1731861328338.png

The W/Cooler term is also being used to talk about the A/C cooling system instead of the oil cooler.

And here's some more smoking gun that says this may be an A/C ready 1979. That battery mount and brace looks like its specifically skewed away from where an A/C compressor would sit in the bracket. The bracket on the other side connects to the frame.
1731861600062.png

You mention the union pipe being from the FJ60 era. But its ACTUALLY different than the FJ60 union pipe. The bolt flange for the union pipe on this 40 is shorter and has a round hole where the FJ60 has a slotted clip flange and is slightly longer.

Now...the last smoking gun picture. Outside bolt flange of this radiator is 22 1/8" inches across side to side. @3_puppies can you measure your radiator from the same spot?


1731861940912.png
 
Things are making a lot more sense on this truck. I wasn't recognizing the parts but the A/C compressor adjustment bracket (underside of alternator bracket) is there also. So either this is a odd factory release or someone deleted the A/C. Deleting the A/C seems strange given where it lived during the early 90s to 2015. I have a few service records for this truck from Dallas Texas. It would seem pretty nutty to delete an A/C if you were in dallas.
1731875473271.png
 
so apparently my memory from 19 years ago is faulty
there is the long pipe as you show, and my bracket does have the idler wheel
your radiator is a non a/c rad
the hose needed is a zig zag shape, which is the special one CDAN found for me
does your rig have stock PS?

first pic is a non a/c rad
second is my 1980 a/c rad
third is comp
fourth is the pipe
last 2 are of the hose

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DSCF5940.JPG


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I just learned something new today.😊
 
This is indeed the exact hose I need. From lip of union pipe to lip of radiator inlet is 3.5". The offset from center to center is 2.25" The inside diameter of this hose is 1.5". Looking at your hose leads me to believe there is some adjustment toyota has made in the radiators to get the hose to be near the same.

I've spent the last afternoon looking through the 2019 dayco manual looking for a similar hose. The other hose manufacturers have done away with their PDFs and force you through webpage after webpage. Its such a simple curved / offset hose that there has to be a generic if I could spot it. Seems like it would be good to find a generic one because this is NLA. Anyone have any old PDFs from radiator hose manufacturers. Slogging thru web pages is no fun.
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Have you considered going into a parts store with a garment tape measure with the measurement off Paul’s hose? I’ve always been able to walk behind the counter and peruse the radiator hoses at Advance, Napa, Auto Zone when I need something odd ball. Also consider if it has the right bend/shape but is too long cutting one down.
 
is the hose NLA? the part # tag is still somewhat visible

I've also had luck finding a longer hose with the bends I've needed and cut off the sections not needed so I ended up with exactly what I needed for the aplication.
X2, our local auto parts houses will let me go behind the counter to see if I can find what I need
 
hmmm....the offset center to center of that is more like 3/4 inch instead of 2.25. That is the specified hose
and the one I thought was correct....but my radiator being a non a/c radiator may be screwing me up.

Certainly willing to order and try.
 

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