Club 80-90 Forums

Hi. I'm a new member and pleased to have joined Club 80-90. I have an 88 1.7 diesel hi-top. I recently had the head replaced and she seems to be running hotter then she did before (about half way). The fan wasn't kicking in so I tested it, changed the senser, bled the system etc. Now the fan kicks in only when the needle is getting near the danger area. I want to put in a manual fan switch - mainly for peace of mind. How is it best to do this?

We have done this.
Run a fused live supply to the live side of the wiring to the fan. Break this wire,you have fitted, with a switch and you have manual control and because the original wiring is still in place it will work with sensor as before.

Hope that helps
Dave and Margaret

I failed to mention it's a 2 speed fan. Does this make any difference?

As far as I know ours is only single speed.

You could just connect up to one speed either the high speed or the lower speed I don`t think this would cause any damage to the motor. Other folks may come along and verify that.

Dave & Margaret

when you say half way.is halfway on the led.that is where its meant to be...mine sits slightly to the left of the led....

about half way

You should swap out your temperature sensors on the engine before inserting a manual switch and get the engine tested for compression and leakdown, otherwise you're likely to be attacking the symptons, not the cause.

All this was done when new head and gasket fitted. The needle sits just to the right of the led generally, on hills it'll creep up, on steep hills she seems to get really hot (past 3/4 on temp gauge) before fan kicks in. Should I be worried or is this about normal?

I would rather have what you have got ,with the gauge moving as the temp increases or decreases,mine moves about 1/3 up the gauge and stays there,makes me wonder if it's OK.
I would be well happy with that and would say that is quite normal.
Don

i would not be happy if that was happening with my van.

Should I be worried or is this about normal

togga wrote:All this was done when new head and gasket fitted. The needle sits just to the right of the led generally, on hills it'll creep up, on steep hills she seems to get really hot (past 3/4 on temp gauge) before fan kicks in. Should I be worried or is this about normal?

Having reread the post Suk.I agree with you,thats not right.
Don

Any suggestions as to what might be causing this? As I seem to be scratching my head now having gone through all I can think of.

dont know about the 1.7 but my 1.6td has two temp senders.how many have you replaced...

I've replaced 1 on the engine and 1 on the rad.

if you are going to fit a switch best to use a relay in the circuit as well

Or a buzz bar the switch from a frankenstein movie. Hey that would suit our brummy friend 'Oldiguana' well, he's building a hybrid T his end - bits of this and bits of that. Just ribbin' you our kid