1985 toyota 22r overheat

I have a 1985 toyota 22r pickup that just recently started to overheat.
My first attempt was to change the thermostat, that didn't fix it so I
took the radiator out and had it boiled out and the guy at the shop
said that it was real bad, that didn't fix it, so I put a new water
pump on it, that didn't fix it so I took it to a shop and they said
that the fan clutch was bad, so I put a new one on, but that didn't fix
it either, I question if the timinig has something to do with it. It
does not use a drop of water, and there is no sign of water in the oil,
or water in the exhaust like if it was burning any water. So I do not
think that I have a blown head gasket. But I am out of ideas hopefully
somebody can help me.

Thanks,
Adam Akers


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On Wed, 13 Jul 2005 07:53:19 -0500, akersa
<akersa.1s40r8@no-mx.forums.yourdomain.com.au> wrote:
[color=blue]
>
>I have a 1985 toyota 22r pickup that just recently started to overheat.
>My first attempt was to change the thermostat, that didn't fix it so I
>took the radiator out and had it boiled out and the guy at the shop
>said that it was real bad, that didn't fix it, so I put a new water
>pump on it, that didn't fix it so I took it to a shop and they said
>that the fan clutch was bad, so I put a new one on, but that didn't fix
>it either, I question if the timinig has something to do with it. It
>does not use a drop of water, and there is no sign of water in the oil,
>or water in the exhaust like if it was burning any water. So I do not
>think that I have a blown head gasket. But I am out of ideas hopefully
>somebody can help me.
>[/color]

Here's a long shot: a friend had a similar problem with something
about that year, tried everything, and turned out one of the coolant
hoses had started to come apart on the inside and was blocking flow.
An affordable fix if that's it and probably due anyway for new hoses
if you haven't changed them already.

I changed hoses when I put the radiator back in.


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I assume you changed the themostat with hoses and radiator? on an old
mustang I have, the sending unit did this with the oil pressure. with an
newer tbird, I had trouble with AIR in the coolant, causing circulation
problems. and are you sure you got the same one back in it? I know some
people took thermostats out, in old days, thinking overcome overheating, but
it didn't i t makes it worse in HOT climates. that and the thermostat
seemingly causes the water to circulate to less remote areas in the engine
thus building up steam if it is not there?

Timing is easily checked, you know if you have a tool, but yeah too advanced
to retarded can cause excessive heat, but both usually have other more
important symptoms like knocking, or low power respectively. last think I
have read in other forums is (not in toyota's particularly) plugged
catalytic, but you should again have other symptoms (mpg way off normal) no
power, or jet like sound.



akersa enlightened us with:[color=blue]
> I changed hoses when I put the radiator back in.
>
>
> --
> akersa
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I did change the thermostat actually twice, because I thought that maybe
I got a bad one. As far as the timing goes I have checked it with a
light, and it is on the money, but I wonder if somehow the vaccum
advance is messed up or something like that. It does not ping, and it
has plenty of power. Any more Ideas?

Adam


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Check to make sure it's really overheating. It isn't making the usuals
signs like water usage, pinging or power loss. Check the gauge and sending
unit.

Tappett
"akersa" <akersa.1s40r8@no-mx.forums.yourdomain.com.au> wrote in message
news:akersa.1s40r8@no-mx.forums.yourdomain.com.au...[color=blue]
>
> I have a 1985 toyota 22r pickup that just recently started to overheat.
> My first attempt was to change the thermostat, that didn't fix it so I
> took the radiator out and had it boiled out and the guy at the shop
> said that it was real bad, that didn't fix it, so I put a new water
> pump on it, that didn't fix it so I took it to a shop and they said
> that the fan clutch was bad, so I put a new one on, but that didn't fix
> it either, I question if the timinig has something to do with it. It
> does not use a drop of water, and there is no sign of water in the oil,
> or water in the exhaust like if it was burning any water. So I do not
> think that I have a blown head gasket. But I am out of ideas hopefully
> somebody can help me.
>
> Thanks,
> Adam Akers
>
>
> --
> akersa
> ------------------------------------------------------------------------
> akersa's Profile: [url]http://www.usenetcars.com/member.php?userid=3338[/url]
> View this thread: [url]http://www.usenetcars.com/showthread.php?t=571739[/url]
>[/color]

I am sure that it is overheating, when the gauge goes up I stop the
engine, and it is spraying water into the overflow tank, and I can tell
that it is hot.


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FWIW: Just recently went through the same thing (s) that you are going
through with a 93 22RE. Did all the same troubleshooting and "some" of the
same parts replacement. Finally did a recheck of the spark plugs and
discovered that # 4 (in my case) was showing that the cylinder either wasn't
firing or at least not firing properly. When all else failed to correct the
problem, I pulled the head and discovered that there was a burned (read
blown) spot at #4 gasket (again my case). Replaced the gasket (PITA) and
reassembled the engine. Problem solved!! Runs cool again. Hate to reflect
this but it was my fix! Compression check was good during the trouble
shooting on all 4 cyl, so must have been a compression leak after the engine
got hot!

Hope this is not your situation
Bill
BTW: If you have to pull the head,read my previous post(s) regarding the
timing chain (or contact me direct>
"akersa" <akersa.1s6ybe@no-mx.forums.yourdomain.com.au> wrote in message
news:akersa.1s6ybe@no-mx.forums.yourdomain.com.au...[color=blue]
>
> I am sure that it is overheating, when the gauge goes up I stop the
> engine, and it is spraying water into the overflow tank, and I can tell
> that it is hot.
>
>
> --
> akersa
> ------------------------------------------------------------------------
> akersa's Profile: [url]http://www.usenetcars.com/member.php?userid=3338[/url]
> View this thread: [url]http://www.usenetcars.com/showthread.php?t=571739[/url]
>[/color]

Check the timing to see if it's not advanced too much.
This would cause it to over heat.
Good Luck......

Is there any chance you could of put the thermostat in backwards ?

No the thermostat is in correct. I too did a compression check, and it
is good, and If I pull one spark plug wire off it makes a difference,
so all the cylinders are running.

Adam


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akersa wrote:[color=blue]
> I have a 1985 toyota 22r pickup that just recently started to
> overheat. My first attempt was to change the thermostat, that didn't
> fix it so I took the radiator out and had it boiled out and the guy
> at the shop said that it was real bad, that didn't fix it, so I put a
> new water pump on it, that didn't fix it so I took it to a shop and
> they said that the fan clutch was bad, so I put a new one on, but
> that didn't fix it either, I question if the timinig has something to
> do with it. It does not use a drop of water, and there is no sign of
> water in the oil, or water in the exhaust like if it was burning any
> water. So I do not think that I have a blown head gasket. But I am
> out of ideas hopefully somebody can help me.
>
> Thanks,
> Adam Akers[/color]

Reading through this thread I'd say you've gotten suggestions on all the
probables and stated you've checked them. If all that fails then I'd guess
you might have a blockage in radiator, since you said the rad. shop said
it's bad. If you can borrow an infra-red thermometer or use a cooling system
thermometer check temps along the cooling system path. If there's a blockage
you will see a noticable, abrupt differance in temp at that point. You will
see a gradual difference along the pathway on the radiator as the coolant is
cooling as it moves down through the radiator but, it should change
gradually.
HTH, davidj92

Check to be sure you don't have a blown head gasket.

I'll second what was said about the radiator being blocked again. I know someone who
put a new radiator(and cylinder head and waterpump and thermostat) in his Toyota 22R
pickup and within one week it was partially blocked (the engine would overheat in
traffic but not on the highway). His mechanic got him another new radiator and one week
later same thing happened. Then he had Pep Boys do some kind of vacumn flush on the
engine block and by that time he had to buy another car (he had to use it for work) and
was selling the Toyota, still overheating. I was going to take his second new radiator
to a radiator shop and have it rodded out to unblock it if that was necessary...but I
couldn't get hold of him and then bought a different Toyota truck.

If I'd bought that one I would have flushed the engine block myself just to see how much
crud/rust was in it. I asked a radiator shop owner if he'd ever seen an engine that
couldn't be flushed successfully and he said that was very rare, wasn't sure he'd ever
seen it happen.

What does the coolant look like, is it rusty colored?

The infrared thermometer sounds like a good way to check the radiator...I see them on
eBay for $25-$50.

Good luck,

John


"akersa" <akersa.1s40r8@no-mx.forums.yourdomain.com.au> wrote in message
news:akersa.1s40r8@no-mx.forums.yourdomain.com.au...[color=blue]
>
> I have a 1985 toyota 22r pickup that just recently started to overheat.
> My first attempt was to change the thermostat, that didn't fix it so I
> took the radiator out and had it boiled out and the guy at the shop
> said that it was real bad, that didn't fix it, so I put a new water
> pump on it, that didn't fix it so I took it to a shop and they said
> that the fan clutch was bad, so I put a new one on, but that didn't fix
> it either, I question if the timinig has something to do with it. It
> does not use a drop of water, and there is no sign of water in the oil,
> or water in the exhaust like if it was burning any water. So I do not
> think that I have a blown head gasket. But I am out of ideas hopefully
> somebody can help me.
>
> Thanks,
> Adam Akers
>
>
> --
> akersa
> ------------------------------------------------------------------------
> akersa's Profile: [url]http://www.usenetcars.com/member.php?userid=3338[/url]
> View this thread: [url]http://www.usenetcars.com/showthread.php?t=571739[/url]
>[/color]