What have you done to your 100 Series this week? (110 Viewers)

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highkick05 said:
OK, so seperate post. The 100 series that did not come with AC condenser fans, apparently they were made so the radiator fan picked up the slack of the condenser not having a fan, and cooled down the condenser fins and AC sufficiently when idle (is this true that it works).
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seems like it works well in most locations, but guys who live where it’s super hot rave about the improved cooling they get after adding the condenser fan.
Did you figure out if your fan clutch is good?
And, yeah, the compromised fan shroud might be pushing a marginally adequate system over the brink. That could definitely affect how much air gets pulled past the condenser.

You could always put your vehicle on a boat and come visit the States—nobody’s worried about AC performance here right now. We’re all trying to figure out how to get hot air on our feet....
 
mdcoa said:
seems like it works well in most locations, but guys who live where it’s super hot rave about the improved cooling they get after adding the condenser fan.
Did you figure out if your fan clutch is good?
And, yeah, the compromised fan shroud might be pushing a marginally adequate system over the brink. That could definitely affect how much air gets pulled past the condenser.

You could always put your vehicle on a boat and come visit the States—nobody’s worried about AC performance here right now. We’re all trying to figure out how to get hot air on our feet....
Click to expand...
yeah mate, was 42 on the day. celcius
 
Got some toyo at3’s installed 285/75. I wanted 295’s but they are on back order for who knows how long. then went home and did some rear springs and a quick re index.
DA7C8534-4A9A-4D31-8D83-DD7A27C37F7B.jpeg
BBEB21E8-ED72-4ED1-9B16-0176C944BC53.jpeg
 
mdcoa said:
seems like it works well in most locations, but guys who live where it’s super hot rave about the improved cooling they get after adding the condenser fan.
Did you figure out if your fan clutch is good?
And, yeah, the compromised fan shroud might be pushing a marginally adequate system over the brink. That could definitely affect how much air gets pulled past the condenser.

You could always put your vehicle on a boat and come visit the States—nobody’s worried about AC performance here right now. We’re all trying to figure out how to get hot air on our feet....
Click to expand...
So answering your question from a PC -not a mobile phone. No fan clutch bcos there is no condenser fan on this vehicle. The shroud I will fix.
On a 42 degree celcius day I think you could definitely develop the thinking of yeah that is going to push the system. But it definitely felt like @ idle , cooling was going no where. Glad someone chimed in and mentioned that there must be no air going over the condenser, that sounded spot on what is happening. i.e. when the car is going foward at speed of course air is getting pushed over the condenser. I just need to find if I can get the electrics to trip a condenser fan on. I have this pic here that shows my A/C Pressure switch sensor - 2 wires, then there is an above connector that has nothing connected to it. Guess I'll post that here as well to see if anyone knows what it is:
133080294_3927265187318940_2877532201565230475_n.jpg
 
highkick05 said:
So answering your question from a PC -not a mobile phone. No fan clutch bcos there is no condenser fan on this vehicle. The shroud I will fix.
On a 42 degree celcius day I think you could definitely develop the thinking of yeah that is going to push the system. But it definitely felt like @ idle , cooling was going no where. Glad someone chimed in and mentioned that there must be no air going over the condenser, that sounded spot on what is happening. i.e. when the car is going foward at speed of course air is getting pushed over the condenser. I just need to find if I can get the electrics to trip a condenser fan on. I have this pic here that shows my A/C Pressure switch sensor - 2 wires, then there is an above connector that has nothing connected to it. Guess I'll post that here as well to see if anyone knows what it is:
View attachment 2533670
Click to expand...
Sorry for phrasing it poorly—the fan clutch I was asking about is the engine fan, not the condenser fan, which I believe is just switched—no clutch. If your engine fan clutch is failing/failed and not making the fan turn with the crank when engine warms up, and (as is the case) you have no dedicated condenser fan, yeah, your AC at idle would be really sucking.
Can your fan be spun by hand with minimal resistance when the engine is hot (and not running😂)? If so, that is probably part/all of your problem...
 
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mdcoa said:
Sorry for phrasing it poorly—the fan clutch I was asking about is the engine fan, not the condenser fan, which I believe is just switched—no clutch. If your engine fan clutch is failing/failed and not making the fan turn with the crank when engine warms up, and (as is the case) you have no dedicated condenser fan, yeah, your AC at idle would be really sucking.
Can your fan be spun by hand with minimal resistance when the engine is hot (and not running😂)? If so, that is probably part/all of your problem...
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Ahhhh lol. Went down the wrong path with that lol. Might tape up the fan shroud/radiator cover on engine side today, I'll give it a test when warm. Cheers.
 
@mdcoa So warmed the engine up to about nearly half way on the temp gauge and turned it off. Turned the fan by hand and offers good amount of resistance while turning freely. Tried wiggle and no movement up and down. So everything appears to be ok there. However, noticed that the fan will start as soon as I turn the key (start car) and doesn't stop until I turn it off again. Is this normal for the 100 series? Other cars I've looked at before the fan will only kick on when the engine temperature reaches certain level , and more than likely turn off when its cool enough again. Doesn't appear to be regulated by temp sensor at all. Supposed to be a Thermal-coupled fan clutch - don't get why it would be on as soon as the key turns from cold.

Merry Christmas anyway everyone !
 
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highkick05 said:
@mdcoa So warmed the engine up to about nearly half way on the temp gauge and turned it off. Turned the fan by hand and offers good amount of resistance while turning freely. Tried wiggle and no movement up and down. So everything appears to be ok there. However, noticed that the fan will start as soon as I turn the key (start car) and doesn't stop until I turn it off again. Is this normal for the 100 series? Other cars I've looked at before the fan will only kick on when the engine temperature reaches certain level , and more than likely turn off when its cool enough again. Doesn't appear to be regulated by temp sensor at all. Supposed to be a Thermal-coupled fan clutch - don't get why it would be on as soon as the key turns from cold.

Merry Christmas anyway everyone !
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With a viscous fan clutch, the fan will always turn. When cooler, the fan essentially windmills. As the fluid heat up, it “engages” the clutch and the fan will spin at engine RPM. When hot, it should turn with a lot of resistance.

Some vehicles have an electronic component to the clutch (my F-350 does). It will engage the clutch based on coolant Temp, oil temp or the a/c being on.
 
Bisho said:
With a viscous fan clutch, the fan will always turn. When cooler, the fan essentially windmills. As the fluid heat up, it “engages” the clutch and the fan will spin at engine RPM. When hot, it should turn with a lot of resistance.

Some vehicles have an electronic component to the clutch (my F-350 does). It will engage the clutch based on coolant Temp, oil temp or the a/c being on.
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Fan clutch definitely appears to be normal, felt that way - turned with a little resistance not heaps.

I'll need to replace the fan shroud on this thing first, 2 top cracks arent to bad, but the bottom bit is just hanging off would be pushing up against the radiator hose once the fan is on and would be leaking air straight to the ground and not funneling it through the radiator. Might be a pretty big deal. If that doesn't help air past the radiator and into the condenser then I think the condenser fan mod would be the only solution. !
 
JAWolf said:
Started to tear down a 1fz-fe to learn about the motor and hopefully rebuild it (current one in car is running fine still, so I can take my time). Picked up fluids to do oil change on diffs, transmission and transfer case (and engine oil change too), as boxing Day sales are on.

View attachment 2535375
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Quite interesting peeking into the top of my engine. I can see why it lasts so long now. Quite simple design. Would love to know the average lifetime of the inline 6 engines. The VL commodore 1987/88 motor was a straight 6 and there is plenty of them cars still on the road.
 
highkick05 said:
Quite interesting peeking into the top of my engine. I can see why it lasts so long now. Quite simple design. Would love to know the average lifetime of the inline 6 engines. The VL commodore 1987/88 motor was a straight 6 and there is plenty of them cars still on the road.
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Between the RB series(in VL commodore and GQ Patrol and Skylines) the 1FZ and the 1/2JZ they all seem over engineered for what they output from factory. Guessing most 1FZs, if they die, it is out of neglect (or head gasket issues, which is why the block I have was being sold... I picked it up for cheap to get confident with pulling it apart). The block and head I have are from an 80s series.
 
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