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Author Topic: Auto Box when Cold Hesitant shifting  (Read 3557 times)

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TheBoy

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Re: Auto Box when Cold Hesitant shifting
« Reply #15 on: 15 October 2007, 19:11:22 »
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Get a Tractor!
They get hotter faster ;)
IW
Shouldn't do.  

Mine does, much faster than the 2.0 Petrol that I had for a couple of months after the Diesel was drowned in the floods!
IW
What temps does your tractor:

Cruise at
Reach when booting
Reach in traffic
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Pitchfork

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Re: Auto Box when Cold Hesitant shifting
« Reply #16 on: 15 October 2007, 19:13:27 »
Quote
Quote
Quote
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Get a Tractor!
They get hotter faster ;)
IW
Shouldn't do.  

Mine does, much faster than the 2.0 Petrol that I had for a couple of months after the Diesel was drowned in the floods!
IW
What temps does your tractor:

Cruise at
Reach when booting
Reach in traffic

92.5
100
97.5

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TheBoy

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Re: Auto Box when Cold Hesitant shifting
« Reply #17 on: 15 October 2007, 19:18:03 »
Quote
Quote
Quote
Quote
Quote
Get a Tractor!
They get hotter faster ;)
IW
Shouldn't do.  

Mine does, much faster than the 2.0 Petrol that I had for a couple of months after the Diesel was drowned in the floods!
IW
What temps does your tractor:

Cruise at
Reach when booting
Reach in traffic

92.5
100
97.5

I think it has cooling issues.  100C on the gauge (109C in reality) is dangerously close to its 'safe' zone (The BMW unit is classed safe to 110C).
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Pitchfork

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Re: Auto Box when Cold Hesitant shifting
« Reply #18 on: 15 October 2007, 19:30:19 »
Quote
Quote
Quote
Quote
Quote
Quote
Get a Tractor!
They get hotter faster ;)
IW
Shouldn't do.  

Mine does, much faster than the 2.0 Petrol that I had for a couple of months after the Diesel was drowned in the floods!
IW
What temps does your tractor:

Cruise at
Reach when booting
Reach in traffic

92.5
100
97.5

I think it has cooling issues.  100C on the gauge (109C in reality) is dangerously close to its 'safe' zone (The BMW unit is classed safe to 110C).
By comparison, what are your equivalent temperatures?
IW
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TheBoy

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Re: Auto Box when Cold Hesitant shifting
« Reply #19 on: 15 October 2007, 19:33:28 »
Quote
Quote
Quote
Quote
Quote
Quote
Quote
Get a Tractor!
They get hotter faster ;)
IW
Shouldn't do.  

Mine does, much faster than the 2.0 Petrol that I had for a couple of months after the Diesel was drowned in the floods!
IW
What temps does your tractor:

Cruise at
Reach when booting
Reach in traffic

92.5
100
97.5

I think it has cooling issues.  100C on the gauge (109C in reality) is dangerously close to its 'safe' zone (The BMW unit is classed safe to 110C).
By comparison, what are your equivalent temperatures?
IW
Can't quote cruising yet, as only changed stat yesterday, and not taken for a cruise (old stat 'cruised' at 90/100mph at 85 ish).

Booting: 97 is highest since changed stat (and I don't have my viscous on there at moment)
Traffic: 96 - leccy fans drag back to 94
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Kevin Wood

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Re: Auto Box when Cold Hesitant shifting
« Reply #20 on: 15 October 2007, 19:40:15 »
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(and I don't have my viscous on there at moment)

Is it worth bothering with the viscous fan? They've always seemed a bit wasteful to me.
If the electric fan keeps it under control in this climate I wouldn't bother putting it back. 99% of the time you'll be moving fast enough to get sufficient air flow through the rad anyway.

As long as the tractor has the usual setup of aux. fans that run with the air con on I reckon it's probably superfluous.

Kevin
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TheBoy

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Re: Auto Box when Cold Hesitant shifting
« Reply #21 on: 15 October 2007, 20:01:41 »
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(and I don't have my viscous on there at moment)

Is it worth bothering with the viscous fan? They've always seemed a bit wasteful to me.
If the electric fan keeps it under control in this climate I wouldn't bother putting it back. 99% of the time you'll be moving fast enough to get sufficient air flow through the rad anyway.

As long as the tractor has the usual setup of aux. fans that run with the air con on I reckon it's probably superfluous.

Kevin
I agree, though since putting a working stat back in it runs slightly warmer...
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Pitchfork

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Re: Auto Box when Cold Hesitant shifting
« Reply #22 on: 15 October 2007, 20:27:58 »
I'm beginning to wonder if my electric fans are kicking in at higher speeds at higher temperatures
I know that they run normally because I have previously taken the grill off to look at them turning
Experimentation required I think!
IW
PS I don't have air-con
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Re: Auto Box when Cold Hesitant shifting
« Reply #23 on: 15 October 2007, 21:04:52 »
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I'm beginning to wonder if my electric fans are kicking in at higher speeds at higher temperatures
I know that they run normally because I have previously taken the grill off to look at them turning
Experimentation required I think!
IW
PS I don't have air-con
Check they still work - I had a tractor here on Sunday which occasionally suffered overheating. Turns out that the fan switch had failed recently (I had seen them working a few months ago).
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Kevin Wood

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Re: Auto Box when Cold Hesitant shifting
« Reply #24 on: 15 October 2007, 23:32:42 »
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I agree, though since putting a working stat back in it runs slightly warmer...

That's probably just because the stat is now working properly though. Once the radiator has started to struggle to bring the temperature down the stat should be fully open so it's out of the picture. The only thing I wonder is if they put it there to shift heat soak from the turbo under the bonnet but, again, most of the time there'll be plenty of airflow.

Kevin
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Re: Auto Box when Cold Hesitant shifting
« Reply #25 on: 16 October 2007, 08:29:08 »
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I agree, though since putting a working stat back in it runs slightly warmer...

That's probably just because the stat is now working properly though. Once the radiator has started to struggle to bring the temperature down the stat should be fully open so it's out of the picture. The only thing I wonder is if they put it there to shift heat soak from the turbo under the bonnet but, again, most of the time there'll be plenty of airflow.

Kevin
They do generate a lot of heat - its a 80C stat, and the operating temp seems to suggest it should run in the 92 - 95C range
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Re: Auto Box when Cold Hesitant shifting
« Reply #26 on: 16 October 2007, 08:30:14 »
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I'm beginning to wonder if my electric fans are kicking in at higher speeds at higher temperatures
I know that they run normally because I have previously taken the grill off to look at them turning
Experimentation required I think!
IW
PS I don't have air-con
Check they still work - I had a tractor here on Sunday which occasionally suffered overheating. Turns out that the fan switch had failed recently (I had seen them working a few months ago).
Am I right in thinking that there are 2 switches?
If so, which one is the low speed & which the high speed?
IW
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Re: Auto Box when Cold Hesitant shifting
« Reply #27 on: 16 October 2007, 09:17:28 »
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I'm beginning to wonder if my electric fans are kicking in at higher speeds at higher temperatures
I know that they run normally because I have previously taken the grill off to look at them turning
Experimentation required I think!
IW
PS I don't have air-con
Check they still work - I had a tractor here on Sunday which occasionally suffered overheating. Turns out that the fan switch had failed recently (I had seen them working a few months ago).
Am I right in thinking that there are 2 switches?
If so, which one is the low speed & which the high speed?
IW
Depends on if you have A/C. If you do, short out the top one, just under top coolant hose, with a paperclip, should bring on low speed fans.
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Re: Auto Box when Cold Hesitant shifting
« Reply #28 on: 16 October 2007, 09:41:29 »
I don't have A/C so are there 1 or 2 switches?
I assume that the fans are 2 speed - is this correct?
IW
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Re: Auto Box when Cold Hesitant shifting
« Reply #29 on: 16 October 2007, 17:41:25 »
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I don't have A/C so are there 1 or 2 switches?
I assume that the fans are 2 speed - is this correct?
IW
Of top of my head, not sure about non a/c cars.  Possibly a single switch with 3 connectors. There is a wiring diag in Haynes if you want to check
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