Author Topic: Fan the flame  (Read 719 times)

0 Members and 1 Guest are viewing this topic.

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Fan the flame
« on: February 18, 2018, 01:02:41 PM »
Hello good people
I have embarked on the journey to find out why my fan relay is not working.
I found that the pink trigger wire had no power when I bought the car
Someone had connected it to the coil positive.
I have traced the wire back in the boot to the 2 relays near the battery.
Found a melted 30amp fuse and a relay with a 20amp fuse in it.
Has anyone got a photo of the correct relays in a qv164 for my reference.
Cheers
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #1 on: February 19, 2018, 09:03:51 PM »
Today trace the offending wire to the
Boot where I found a bird nets of wires
Left over from the Qv electrity shock
Some one was very happy with the side cutters lol

So I put all the wires into a plastic bag and tapped
It up so water and dust canít get in .
The relay next to the battery with a 20A fuse
Powers my rad fan and runs to the pink wire .

I not shore what other things it powers ?
So just at the moment I have removed the (old shocks) relay
And replaced it with just a 25A fuse and it all seems to work
Time will tell
Cheers
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

CitroŽnbender

  • Hero Member
  • *****
  • Posts: 990
  • Gen. 3:19
Re: Fan the flame
« Reply #2 on: February 19, 2018, 09:42:04 PM »
Do you know the fan motor wattage? If it's a single fan only, I'd expect it to be a good 250-300W.

So with 10% safety in your fusing and rounding up, you'd be at 25A for a 250W fan or 30A for a 300W unit. 

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #3 on: February 19, 2018, 10:23:46 PM »
Wow thanks mate I did not know that I will
Have to check. I know its a Daves Craig 18Ē

Cheers
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

CitroŽnbender

  • Hero Member
  • *****
  • Posts: 990
  • Gen. 3:19
Re: Fan the flame
« Reply #4 on: February 19, 2018, 10:34:24 PM »
I can only find a listing for the Thermatics up to 16 inch, and that one sucks 19A at the motor (so you'd still use a 25A fuse).

Have experienced a lot of grief from rewiring, it seems many sparkies don't go back to first principles or care about overall neatness. 

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #5 on: February 20, 2018, 08:11:59 AM »
ďHave experienced a lot of grief from rewiring ď
Yes I have had me fair share. That I always spend a bit more time
Making shore it all neat and tidy and well taped
I have found so most of the time with in electronic problems
It a + wire that has rubbed though and touching earth.

Thanks for the help mate cheers Shane
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #6 on: February 25, 2018, 09:09:37 AM »
Good morning
I have a question: I have tracked the Brown wire of
The radiator temp switch (myín is 76c)back
To the switch on the receiver dryer so
If I have no gas in the A/C system would the
Switch ground out ?
Have a nice day
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

CitroŽnbender

  • Hero Member
  • *****
  • Posts: 990
  • Gen. 3:19
Re: Fan the flame
« Reply #7 on: February 25, 2018, 10:32:31 AM »
Many AC systems of this era had simple influence on the radiator fan.

If you turned the AC on, it would activate the low fan speed if the fan wasnít already running.
If the gas pressure got too high, it would turn the fan(s) to high speed.

There is unlikely to be anything really weird about the 164 fans and climate control, sometimes there will be included in the circuit an odd function or wiring configuration but when you examine carefully, you realise itís been included to aid diagnosis of faults.

Have you seen the AlfaBB thread about the American 164 cooling fan schematics?

http://www.alfabb.com/bb/forums/164-168-1991-1995/197272-simplified-troubleshooting-alfa-romeo-164-cooling-fan-system.html#/topics/197272
« Last Edit: February 25, 2018, 11:18:36 AM by CitroŽnbender »

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #8 on: February 25, 2018, 04:25:22 PM »
Thank you for your answer it is very straight forward
I have found this alfabb to hard to understand because
Of all the differing opinions and configurations of wiring
Eg: two speed switchís,Left hand drive,24v etc
I like the K.i.s.s principal lol
Keep.it.simple.stupid
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #9 on: February 25, 2018, 08:54:02 PM »
So I just go and help up some customers
When I said the K.i.s.s I think that one or few
People is a great help
Thanks
Shane
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car

ARQ164 Shane

  • Hero Member
  • *****
  • Posts: 509
  • carpe diem
  • AROCA Member #: 1117
Re: Fan the flame
« Reply #10 on: March 14, 2018, 09:43:24 PM »
hi guys,
I have finally work out how to make my photos small.

so hears a few of pic of the coolant relay power wire that runs to the battery in the boot .
Hi Neighbour,
1973 L beetle "Tilly" sold
87 QV 75 ALFA 2.5lt sold
92 auto 164 3lt RIP
91 white 164 Q
89 164 Q part car