D24T.com  

Go Back   D24T.com > Technical Discussion Area > Diesel Engine and Drivetrain

Reply
 
Thread Tools Display Modes
  #1  
Old 08-07-2018, 11:04 AM
tofufi tofufi is offline
Member
 
Join Date: Feb 2016
Location: Bristol, UK
Vehicle: 740 turbodiesel
Posts: 37
Default Electric fan conversion

Hi folks,

I've fitted an electric fan to my D24T(IC)

It's a standard Volvo 940 (large) one, which fits on the radiator, and uses a 2 speed relay.

To trigger it, I bought a kit from eBay which puts a switch into the radiator hose.

I put this in the top hose - am I right in thinking this is the inlet to the engine from the radiator? The hose from the thermostat on the engine is unchanged.



I also temporarily put a light in the dashboard to tell me when the radiator fan is running.

The switch triggers at two temperatures, the first of which is meant to be 88-83, the second temperature being 92-87.

So far as I know, I'm running a standard thermostat.

So, when driving on the motorway at 70mph, the electric fan is always on, and at the second speed. Temperatures today were at least 25 deg C (77f) outside.

The temperature gauge is steady and shows straight upwards. So I don't think it's overheating - I've done 20k miles in the car in the time I've owned it and it's never showed signs of overheating.

Has anyone else experience of this, and suggestions for a better switch location or suitable triggering temperatures?

This is a handy list of different switches I can readily get: http://www.x-eng.co.uk/X-ThermData.asp

Cheers,
Jim.

Last edited by tofufi; 08-07-2018 at 11:08 AM.
Reply With Quote
  #2  
Old 08-07-2018, 11:39 AM
ngoma ngoma is offline
Senior Member
 
Join Date: Nov 2009
Posts: 677
Default

Quote:
Originally Posted by tofufi View Post
I put this in the top hose - am I right in thinking this is the inlet to the engine from the radiator?
The upper hose carries the hot coolant from the engine to the radiator.
__________________
1985 744 gle d24t
1985 745 gle d24t
Reply With Quote
  #3  
Old 08-07-2018, 11:58 AM
tofufi tofufi is offline
Member
 
Join Date: Feb 2016
Location: Bristol, UK
Vehicle: 740 turbodiesel
Posts: 37
Default

Quote:
Originally Posted by ngoma View Post
The upper hose carries the hot coolant from the engine to the radiator.
That'd be it then I'll try inserting it into the lower hose instead...

Thanks
Reply With Quote
  #4  
Old 08-07-2018, 01:47 PM
RedArrow RedArrow is offline
Senior Member
 
Join Date: Jan 2013
Location: NY
Vehicle: 740
Posts: 551
Default

Having the "generator" up there is so much smarter than what we got on our cars here in the usa.
Reply With Quote
  #5  
Old 08-07-2018, 11:32 PM
tofufi tofufi is offline
Member
 
Join Date: Feb 2016
Location: Bristol, UK
Vehicle: 740 turbodiesel
Posts: 37
Default

Where did they put the alternator/generator on the US cars?

Below the alternator is the power steering pump, and below that the A/C... not sure there's room anywhere else!
Reply With Quote
  #6  
Old 08-08-2018, 02:24 AM
RedArrow RedArrow is offline
Senior Member
 
Join Date: Jan 2013
Location: NY
Vehicle: 740
Posts: 551
Default Alternator is on the passenger side here in the US

And it is closer to the ground (&water)

http://vwdiesel.net/forum/index.php/topic,27359.0.html
Attached Images
File Type: jpg Screenshot_2018-08-08-05-21-40.jpg (9.0 KB, 9 views)
File Type: jpg Screenshot_2018-08-08-05-21-24.jpg (25.8 KB, 12 views)

Last edited by RedArrow; 08-08-2018 at 02:30 AM.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 09:38 PM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2018, vBulletin Solutions, Inc.