Climate Control and Whale Noises - Page 3

stocktake · 22nd April 2008, 20:07

Changing from the three speed to the two speed requires the splicing together of the slow and medium feeds so both operate the slower speed on the two speed fan. Put simply, your slow, medium and fast requirements become medium, medium and fast. There is a how to somewhere on here.

Good luck

Dave...

Christopher · 22nd April 2008, 20:08

Thanks Dave - am looking for that right now!

ATB

stocktake · 22nd April 2008, 20:11

Quote:

Originally Posted by Christopher

OK - quick check. Lost only a tiny bit of coolant - although system is still warm so will double check tomorrow AM - phew! (I think!).

Checked fan is deffo not running with engine on or off and with aircon on or off - from memory fan always came on with aircon on (and engine on) before.

I can see resistor at 2 o'clock as I stare past Sliverbeard's whiskers ... (are these resistors present with the 2 speed variety? I think not) So pretty sure have the 3 speed thingy installed ...

If you CAN see the silver resitor you have a TWO speed fan and it is more than likely the resistor has failed. I believe if you bypass the resistor the fan will work on max speed. This would then prove the resistor has failed.

You need a gold one from Jules as they are more robust.

YOU HAVE A TWO SPEED FAN CHRISTOPHER

Phil · 22nd April 2008, 20:11

The 1.8 has a 2 speed fan anyway doesn't it?

SMC Trading · 22nd April 2008, 20:15

Yep,

My understanding is the standard 1.8 Mk1 has a 2 speed 3 wire fan motor which is quite different to the 4 wire 3 speed units in all other Mk1 models (the 1.8 turbo has a different one to all the others too)

stocktake · 22nd April 2008, 20:17

Prob correct that Phil, very early ones had no resistor (not a clue how they worked) but the latter type def two speed with the silver feeble resistor. Good shout Phil. (now i know why your green)

Edit: one thing for certain that resistor is prime suspect

Christopher · 22nd April 2008, 20:18

Thanks Guys - so I have a 2 speed fan!

(Is it any different from the "new" fans though?)

I'll see if there are any fuses to check too - you never know ...

edit: also, might invest in a resistor from Jules anyway .... you never know (twice)

JohnDotCom · 22nd April 2008, 20:31

You have a PM Christopher.

Christopher · 22nd April 2008, 20:47

Quote:

Originally Posted by JohnDotCom

You have a PM Christopher.

Thanks John

Christopher · 22nd April 2008, 21:55

Reading the resistor mod thread - it seems to me that the resistor is for the lower of the two speeds, so if the resistor has gone the fan should cycle in and out of high speed - which in my case it isn't ... so although the resistor *may* be gone it points at something else - the fan itself, or something further up the chain.

Does that make sense?

22nd April 2008, 20:07	#21
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,593 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Changing from the three speed to the two speed requires the splicing together of the slow and medium feeds so both operate the slower speed on the two speed fan. Put simply, your slow, medium and fast requirements become medium, medium and fast. There is a how to somewhere on here. Good luck Dave... __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

22nd April 2008, 20:08	#22
Christopher Owners Club Director Rover 75 V6 Copperleaf Red, MG ZTT 190+ Lagoon & Early MGF Join Date: Oct 2006 Location: Rugby Posts: 9,287 Thanks: 105 Thanked 343 Times in 81 Posts	Thanks Dave - am looking for that right now! ATB __________________ Christopher in banana veritas

22nd April 2008, 20:11	#24
Phil This is my second home Rover 75 CDT Connoisseur SE Join Date: Nov 2006 Location: Wales Posts: 12,227 Thanks: 469 Thanked 523 Times in 241 Posts	The 1.8 has a 2 speed fan anyway doesn't it? __________________

22nd April 2008, 20:17	#26
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,593 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Prob correct that Phil, very early ones had no resistor (not a clue how they worked) but the latter type def two speed with the silver feeble resistor. Good shout Phil. (now i know why your green) Edit: one thing for certain that resistor is prime suspect __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

22nd April 2008, 20:18	#27
Christopher Owners Club Director Rover 75 V6 Copperleaf Red, MG ZTT 190+ Lagoon & Early MGF Join Date: Oct 2006 Location: Rugby Posts: 9,287 Thanks: 105 Thanked 343 Times in 81 Posts	Thanks Guys - so I have a 2 speed fan! (Is it any different from the "new" fans though?) I'll see if there are any fuses to check too - you never know ... edit: also, might invest in a resistor from Jules anyway .... you never know (twice) __________________ Christopher in banana veritas

22nd April 2008, 20:15	#25
SMC Trading I really should get out more....... Rover 75 Join Date: Nov 2006 Location: Nr Harlow Posts: 2,872 Thanks: 1 Thanked 6 Times in 5 Posts	Yep, My understanding is the standard 1.8 Mk1 has a 2 speed 3 wire fan motor which is quite different to the 4 wire 3 speed units in all other Mk1 models (the 1.8 turbo has a different one to all the others too)

22nd April 2008, 20:31	#28
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	You have a PM Christopher.

22nd April 2008, 21:55	#30
Christopher Owners Club Director Rover 75 V6 Copperleaf Red, MG ZTT 190+ Lagoon & Early MGF Join Date: Oct 2006 Location: Rugby Posts: 9,287 Thanks: 105 Thanked 343 Times in 81 Posts	Reading the resistor mod thread - it seems to me that the resistor is for the lower of the two speeds, so if the resistor has gone the fan should cycle in and out of high speed - which in my case it isn't ... so although the resistor may be gone it points at something else - the fan itself, or something further up the chain. Does that make sense? __________________ Christopher in banana veritas