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1995 4runner RV6 - Norbie bought a fourby

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  • takai
    replied
    Originally posted by Mr Ree View Post
    Now thats a cool ending to that problem
    Boom tish

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  • Mr Ree
    replied
    Now thats a cool ending to that problem

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  • schnitzelburger
    replied
    nice work man, a satisfying win that one.

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  • Bob Vegana.
    replied
    Well done.

    Have a Milky Bar on me.

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  • Aaron
    replied
    Nice
    It’s good to work this stuff out so that when you do the engine swap and it ceases to work you know what to bypass or have the Haltech trigger.

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  • Norbie
    replied
    Originally posted by Aaron View Post
    Radiator or water plumbing. It’ll be another safeguard against dumping heat in front of the radiator.
    Well you get the prize*, it was exactly that. I found the various temperature sensors at the back of the engine and sure enough there was a connector with a snapped off wire and a loose wire nearby:



    As soon as I touched the end of that wire on the manifold the compressor fired up, so that's gotta be the thermo switch. Problem is, how do I repair the connector with almost no wire sticking out?



    Well my policy of never throwing away worthless old junk has paid dividends once again - the old engine harness from the Celica is hanging up on the shed wall, and I was sure I'd seen a similar connector on that. After a brief search I found it, and yep it's identical:



    So I soldered that onto the loose wire in the 4runner, plugged it back into the thermo switch, and went for a test drive. Success, everything works, the AC switches on and blows icy cold air out the vents just like it should. That's a solid win!

    Thanks to everyone for their suggestions.

    * the prize is knowing you were right

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  • Bob Vegana.
    replied
    Just patch in your own harness to cut the compressor in and switch the condenser fan on, lol.

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  • Norbie
    replied
    Ah, didn't think of that. Thanks!

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  • Aaron
    replied
    Radiator or water plumbing. It’ll be another safeguard against dumping heat in front of the radiator.

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  • Norbie
    replied
    So I spent some time studying this wiring diagram out of a US spec Haynes manual:



    Apart from the wiring colours being totally different I think this is what I have, or close to it.

    The diagram shows a relay in the lower left ("A/C cut relay") which I think is the relay I mentioned earlier, and it's connected to a thermo switch which pulls to ground at 108 degrees. My guess is the mystery wire which makes everything work connects to that thermo switch. So at some point the switch has become damaged, or the connector fell off, or the wires got chopped somewhere, so the switch never pulls to ground which means the relay is never triggered which means the AC never switches on. I can't be certain this is what's happening but it matches the available evidence.

    Anyway to test my theory I need to find that switch! Can anyone tell me what it looks like and where I'm likely to find it? I'm guessing somewhere on the hot side of the system going by the temp it switches at.

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  • takai
    replied
    Originally posted by Mr Ree View Post
    Is that exhaust made from Inconel?
    No, it was made of cheese and blessed by the Pope. that is why it is holey
    Originally posted by Norbie View Post

    Yes there is miles of room under there and I probably wouldn't put a turbo way up the back. Interestingly mine doesn't have the muffler in your picture, which probably explains why it's so loud!
    Oh random. That being said, mine only has the middle muffler, there is no muffler behind the diff on the Hilux due to the tray.

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  • Norbie
    replied
    Originally posted by takai View Post
    With the amount of room under these things, you could always go with a mid mount turbo. There is plenty of space where the big barrel muffler sits to mount a turbo, and it wouldnt be that long to run the pipes back through:
    Yes there is miles of room under there and I probably wouldn't put a turbo way up the back. Interestingly mine doesn't have the muffler in your picture, which probably explains why it's so loud!

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  • Mr Ree
    replied
    Is that exhaust made from Inconel?

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  • takai
    replied
    Originally posted by aerobrick View Post
    You gotta do a takai -- a few pages of over-investing in neatening up a hilux bucket, then BAM hit 'em with a turbo conversion when they're not looking.
    🤣
    Click image for larger version  Name:	escalated-quickly-anchorman-2.gif Views:	0 Size:	2.01 MB ID:	7304156

    Originally posted by Norbie View Post
    I have been thinking more about a cheap and cheerful rear mount turbo lately. Everyone says the 3VZ is a POS, but that didn't stop me slapping a shitty turbo on my 22R recently!
    With the amount of room under these things, you could always go with a mid mount turbo. There is plenty of space where the big barrel muffler sits to mount a turbo, and it wouldnt be that long to run the pipes back through:
    Last edited by takai; 15-10-21, 10:41 AM.

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  • Norbie
    replied
    I have been thinking more about a cheap and cheerful rear mount turbo lately. Everyone says the 3VZ is a POS, but that didn't stop me slapping a shitty turbo on my 22R recently!

    Leave a comment:

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