350i radiator fan sensor

[nikca]

Help please!

My fan doesn't work on my 1987 350i, and it's the fan sensor that's at fault. My local facotors can't match it, and it isn't a range rover sensor tough it's a range rover radiator!

Please help!

Nik

[jmorgan]

Have you shorted the otter switch to see if the fan comes on? If it does leave it shorted until a new one arrives?

[19560]

Some of them were from the 2.8 Capri but better to block off the hole in the radiator, weld a nut into the swan neck and fit one from the Griff as TVR did with my car. It reads the temperature nearer the head is a more solid fixing and is more accesible.

[nikca]

Thanks for that jmorgan, but that doesn't help me find a replacement part!!!!

2.8i capris never used this type of sensor. It is a large clip in type, the body about the size of a 2p piece and the sensor part about the size of 1p piece, each section about 8mm deep.

Still help HELP!

Nik

[jmorgan]

Only trying to keep you going, sorry if I was teaching granny to suck eggs etc.
Try here
http://ourworld.compuserve.com/homepages/shpub/wedgecat1.html
Or the oily pages, there are many links to various places.
www.oilypages.com//links.asp?page=roverv8specialist&

[shpub]

Help please!

My fan doesn't work on my 1987 350i, and it's the fan sensor that's at fault. My local factors can't match it, and it isn't a range rover sensor tough it's a range rover radiator!

Please help!

Nik

It's not a rangie rad as it is a special. Similar to the rangie but different. The sensor is also used on the S series so get one from a TVR dealer/specialist. Not that expensive.

[Brm Brm]

Or, try something completely different. Got fed up with the crap fan and extremely amateur otter switch arrangement that is totally inaccessible. So have had my new ally radiator made with no otter switch and instead have bought an adjustable temp sensor/switch that fits into the top hose. Will give me adjustable fan switch-on temp and no more leaky otter switches. Will be assembling it this weekend complete with twin fans so will hopefully be the best cooled SEAC around.

Cost for the temp sensor was about £50 from Merlin Motorsport at Castle Coombe. If you dont want to take the rad out and seal the otter switch hole just leave it in and forget about it!

Now all I need is to get the bloody cast of my broken leg and I can drive her again!!

[gf350]

Brm Brm said: Or, try something completely different. Got fed up with the crap fan and extremely amateur otter switch arrangement that is totally inaccessible. So have had my new ally radiator made with no otter switch and instead have bought an adjustable temp sensor/switch that fits into the top hose. Will give me adjustable fan switch-on temp and no more leaky otter switches. Will be assembling it this weekend complete with twin fans so will hopefully be the best cooled SEAC around.

Cost for the temp sensor was about £50 from Merlin Motorsport at Castle Coombe. If you dont want to take the rad out and seal the otter switch hole just leave it in and forget about it!

Now all I need is to get the bloody cast of my broken leg and I can drive her again!!

Brm Brm,
Is it a kenlowe one? If so how do you wire it up? I've lost the instructions on mine.
Theres 3 pins on it and I'm guessing that the power connects to one of the outer pins and the other outer one goes off to the +ve fan then the -ve fan is earthed on the chassis. Is this right? and if so whats the middle one for?
Gareth.

[david beer]

It will be similar to the ones i use. It has a common and one tab that is normally open and one that is normally closed. The normally open is the one you need.

[shpub]

Test it with continuity on a multimeter. Twiddle the knob until it switches on or off and that will give you the connections.

[dickymint]

Take a look at Kenlowe site...www.kenlowe.com/fans/consumers/fans05.html# if its the same as yours give them a ring. They are extremely helpfull and know all about wedge cooling problems. If you can splash out the cash buy yourself twin 13" fan kit. Awesome cooling and all the relays switches, and a decent thermostat that fits into top hose etc.
Will have a look at my wiring later and get back to you.

[danny hoffman]

My '85 350i uses one from a Maestro

[briantvr350]

Hi guys,

I spent ages looking around (and pestering Land Rover dealers) for the fan switch for my '86 S2 350i

Look no further than your local MG/Rover dealer... Show him the switch and he'll produce a new one for you. These apprear to have been fitted to most Rover cars with electric fans for some time.... i.e metro's etc.

The rubber seal is also a Rover part and should be changed at the same time.... If you're struggling I should be able to get some current partnumbers.. (I now know a tame parts man)

Regards,

Brian (and a Red 350)