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Author Topic: 2.5 TD tractor questions  (Read 1962 times)

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markspark

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2.5 TD tractor questions
« on: 25 May 2010, 00:25:19 »

Hi guys i have just got a 2.5 TD auto and when im setting off it seems to rev more than what i would expect also it sounds like the fan is very loud when you get upto 30-40 mph it seems all normal is this normal
TIA
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tidla

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Re: 2.5 TD tractor questions
« Reply #1 on: 25 May 2010, 00:32:04 »

viscous fan on these??
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markspark

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Re: 2.5 TD tractor questions
« Reply #2 on: 25 May 2010, 00:42:12 »

Quote
viscous fan on these??
yes it is viscus fan are these loud normally
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tidla

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Re: 2.5 TD tractor questions
« Reply #3 on: 25 May 2010, 00:52:14 »

i have not got one of these but viscous fans in general doing there job by "locking up" when warm creating more noise.??
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markspark

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Re: 2.5 TD tractor questions
« Reply #4 on: 25 May 2010, 13:52:02 »

has anyone else had this problem is the fan working correctly as it don't sound right to me
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bigtow

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Re: 2.5 TD tractor questions
« Reply #5 on: 25 May 2010, 15:10:57 »

with the engine [size=24]OFF[/size] try turning the fan by hand to see if it has sized up or has been locked . viscus fans do make a lot of noise when working
« Last Edit: 25 May 2010, 15:11:16 by bigtow »
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2001 MV6 3.2 manual been converted from 2.6 auto

Pitchfork

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Re: 2.5 TD tractor questions
« Reply #6 on: 25 May 2010, 16:47:07 »

They also have a tendency to fail 'locked' so are always turning & making a noise akin to a jet engine
Although some advise their removal completely (LH thread BTW) getting a replacement will prove a problem as they are supposed to be stored vertically - do you think that this is likely to happen in parts stores or during transportation?
It's a lot quieter when not fitted or running but there is the risk overheating especially when under load for a time or idling in traffic
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hoofing it

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Re: 2.5 TD tractor questions
« Reply #7 on: 25 May 2010, 21:47:14 »

take it off it will be fine if you have air-con.
mind its a left hand tread and re-fit it when towing. :y
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markspark

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Re: 2.5 TD tractor questions
« Reply #8 on: 25 May 2010, 21:54:07 »

i have tried to move it and its very stiff to turn so this im taking to mean its faulty if i remove it what has it to do with the aircon i don't understand sorry
tia
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hoofing it

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Re: 2.5 TD tractor questions
« Reply #9 on: 25 May 2010, 21:59:59 »

the air-con fans blow air over both rads when stationary(if its working)the fans are a two stage they run slow all the time the ac is on and increase speed when engine temp hits +90c  :y
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Andy H

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Re: 2.5 TD tractor questions
« Reply #10 on: 25 May 2010, 22:02:37 »

My brother used to have a Rover 2.6 with a viscous fan that had seized.

The viscous hub is intended to slip significantly even when it is hot. If the hub seizes the fan spins at full engine rpm and can do 3 things:
- make lots of noise
- waste fuel
- break and fire fan blades outwards at high velocity (which is what happened to my brother) :o
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hoofing it

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Re: 2.5 TD tractor questions
« Reply #11 on: 25 May 2010, 22:04:17 »

Quote
My brother used to have a Rover 2.6 with a viscous fan that had seized.

The viscous hub is intended to slip significantly even when it is hot. If the hub seizes the fan spins at full engine rpm and can do 3 things:
- make lots of noise
- waste fuel
- break and fire fan blades outwards at high velocity (which is what happened to my brother) :o
as you said its a ROVER ;D ;D :y
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Andy H

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Re: 2.5 TD tractor questions
« Reply #12 on: 25 May 2010, 22:07:43 »

Quote
Quote
My brother used to have a Rover 2.6 with a viscous fan that had seized.

The viscous hub is intended to slip significantly even when it is hot. If the hub seizes the fan spins at full engine rpm and can do 3 things:
- make lots of noise
- waste fuel
- break and fire fan blades outwards at high velocity (which is what happened to my brother) :o
as you said its a ROVER ;D ;D :y
& BMW were so impressed they bought the company ;D ;D (maybe they needed some viscous fans....)
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hoofing it

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Re: 2.5 TD tractor questions
« Reply #13 on: 25 May 2010, 22:09:38 »

Quote
Quote
Quote
My brother used to have a Rover 2.6 with a viscous fan that had seized.

The viscous hub is intended to slip significantly even when it is hot. If the hub seizes the fan spins at full engine rpm and can do 3 things:
- make lots of noise
- waste fuel
- break and fire fan blades outwards at high velocity (which is what happened to my brother) :o
as you said its a ROVER ;D ;D :y
& BMW were so impressed they bought the company ;D ;D (maybe they needed some viscous fans....)
;D ;D ;D
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markspark

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Re: 2.5 TD tractor questions
« Reply #14 on: 25 May 2010, 22:10:25 »

Quote
the air-con fans blow air over both rads when stationary(if its working)the fans are a two stage they run slow all the time the ac is on and increase speed when engine temp hits +90c  :y
is there a way of testing the aircon fans does the aircon have to be on all the time for this to work ie the heater set at low temp (would that not do any harm)
« Last Edit: 25 May 2010, 22:11:15 by markspark »
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