Rad Fan.

An alchemy of sparks, copper wire and earth

Moderators: User administrators, Moderators

Locked
Yodavedude
Registered user
Posts: 0
Joined: 26 Aug 2011, 22:39
80-90 Mem No: 0

Rad Fan.

Post by Yodavedude »

So i have a new rad a new thermo switch,fuses are good thermostat replaced no air locking,hot to the top rad when up to temp. power to and clicking of the relay when i cross the terminals,fan works when hooked up to the battery BUT it still dont kick in when my 1600D 1982 t25 gets hot on that long climb up a long hill???
Amy ideas.ty

billy739
Trader
Posts: 2373
Joined: 20 Oct 2005, 10:00
80-90 Mem No: 1541
Location: gloucester

Re: Rad Fan.

Post by billy739 »

it is supprising just how hot it needs to be before it kicks in!

how high is the temp gauge and is it lossing water when its hot , or you think its hot?

Yodavedude
Registered user
Posts: 0
Joined: 26 Aug 2011, 22:39
80-90 Mem No: 0

Re: Rad Fan.

Post by Yodavedude »

Hi Billy 739. ok,see your point maybe its just me thimking 3/4 up the gage is looking hot to me.no its not loosing any water but my concern is more that, if i cross the terminals and or was to fit a chicken switch on it to do the same thing it will still not turn on the fan.should it not activate the fan if i jam a wire bridge in the spade conection? would just be re asureing to know it runs when needed.
Cheers Dave.

billy739
Trader
Posts: 2373
Joined: 20 Oct 2005, 10:00
80-90 Mem No: 1541
Location: gloucester

Re: Rad Fan.

Post by billy739 »

no probs . yes if you bridge the terminals the fan should work!

i know on later vans there is no relay and its a direct feed for 1600 diesels , 1.7 and td had relays for full speed as they used a larger fan.

BUT it is possible the early ones also had a relay , if it has this will be above and behind slightly the fusebox bolted to the A pillar - there is a relay onthe early ones here and i cant remember what it does!

also check the earting crowns in the same place , dont just look at them tho as it can be deceiving, you need to remove each one seperatly and refit making sure its a nice clean tight fit.

User avatar
jrt
Registered user
Posts: 3459
Joined: 01 Oct 2011, 15:53
80-90 Mem No: 10288
Location: East Cheshire

Re: Rad Fan.

Post by jrt »

The two relays on mine[1983] are the coolant level warning system and rad fan.
David
the future is unwritten

Yodavedude
Registered user
Posts: 0
Joined: 26 Aug 2011, 22:39
80-90 Mem No: 0

Re: Rad Fan.

Post by Yodavedude »

Hmm,ok.i'll have a good check on the earth situation tomorrow and see if that helps.took her for a good run today and the new rad has helped keep the temp at a better place 12oclock.yay.

Locked