Go Back   EcoModder Forum > EcoModding > Off-Topic Tech
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-26-2017, 02:42 PM   #1 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 9,412

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 27.07 mpg (US)
Thanks: 3,261
Thanked 3,585 Times in 2,678 Posts
Fan Clutch

Yesterday I took the fan clutch out of the Dodge Ram 2500 diesel and brought it to the parts store. The nut part that threads onto the engine was very difficult to spin when cold, so I figured the clutch was bad. Comparing it to a new one at the store, it was just as difficult to turn.

I put the fan clutch back in the truck, started it up from cold, and stuck a rolled up piece of cardboard into it. It shredded it, not slowing down in the slightest.

Not sure how to test one of those fan clutches with a built in thermostat. Seems mine isn't working correctly and causes the engine to take a long time to warm up. Then again, the new part didn't turn freely either.

There is very little info online, mostly people showing the valve that the thermostat is on getting stuck, or the clutch fluid leaking out. Neither of which are my problem.

__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-26-2017, 03:07 PM   #2 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,615

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 228
Thanked 3,138 Times in 2,457 Posts
Put a heat gun on it.
Plus you probably don't need it during winter anyways.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Old 11-26-2017, 03:25 PM   #3 (permalink)
Too many cars
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,420

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 (no IMA) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 64.13 mpg (US)
Thanks: 1,017
Thanked 689 Times in 407 Posts
Electric fan conversion!
__________________

  Reply With Quote
Old 11-26-2017, 09:38 PM   #4 (permalink)
Furry Furfag
 
Baltothewolf's Avatar
 
Join Date: Nov 2013
Location: Apple Valley
Posts: 2,084

Winsight - '00 Honda Insight
90 day: 56.69 mpg (US)

Miaderp - '95 Mazda Miata
90 day: 28.53 mpg (US)
Thanks: 67
Thanked 407 Times in 311 Posts
Quote:
Originally Posted by Gasoline Fumes View Post
Electric fan conversion!
This is by far the best recommendation.
__________________

  Reply With Quote
The Following User Says Thank You to Baltothewolf For This Useful Post:
Gasoline Fumes (11-26-2017)
Old 11-27-2017, 12:22 AM   #5 (permalink)
EcoModding Lurker
 
Join Date: Mar 2017
Location: Brisbane Australia
Posts: 49
Thanks: 5
Thanked 5 Times in 4 Posts
I recently replaced my clutch fan with electric only to discover my van doesn't need a fan.
It idled for about an hour on a 30deg C day, no fan, heater and AC off and the hottest it got to was 79deg C.
The electric fan is set to come on at 85 but still yet to happen.
  Reply With Quote
Old 11-27-2017, 01:43 AM   #6 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,761

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,548 Times in 2,215 Posts
People I've told/shown have a hard time believing my two Fords with fan deletes and year-around engine blankets don't run hot. And one also has a "grille block" and the water pump slowed down 40% IIRC.
__________________


  Reply With Quote
Old 11-27-2017, 01:47 AM   #7 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 9,412

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 27.07 mpg (US)
Thanks: 3,261
Thanked 3,585 Times in 2,678 Posts
I don't want to sink much money into the truck as it has a laundry list of problems and has a lot of miles on the chassis (probably around 350,000).

The fan is necessary because I occasionally pull heavy with the truck.

How are clutched fans supposed to work anyhow? It's not connected to the coolant, so how does the thermostat on the clutch "know" when to turn on?
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 11-27-2017, 03:54 AM   #8 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 10,135
Thanks: 0
Thanked 1,205 Times in 1,066 Posts
Quote:
Originally Posted by redpoint5 View Post
How are clutched fans supposed to work anyhow? It's not connected to the coolant, so how does the thermostat on the clutch "know" when to turn on?
The electromagnetic clutch may not be connected to the coolant lines, but the thermostatic control must do so.


Quote:
Originally Posted by Gasoline Fumes View Post
Electric fan conversion!
Electric fans not just are more efficient, and more recently becoming cheaper, but they also tend to require fewer maintenance in the long run.


Quote:
Originally Posted by Jez77 View Post
I recently replaced my clutch fan with electric only to discover my van doesn't need a fan.
It's still better to have a fan while not needing it than not having and actually needing one.
  Reply With Quote
Old 11-27-2017, 04:03 AM   #9 (permalink)
EcoModding Lurker
 
Join Date: Mar 2017
Location: Brisbane Australia
Posts: 49
Thanks: 5
Thanked 5 Times in 4 Posts
My clutch fan was triggered by air temp heating a bimetalic strip inside the clutch.
I think others use a viscous clutch and sense coolent temp from the waterpump shaft.
  Reply With Quote
Old 11-27-2017, 04:18 AM   #10 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 10,135
Thanks: 0
Thanked 1,205 Times in 1,066 Posts
Quote:
Originally Posted by Jez77 View Post
My clutch fan was triggered by air temp heating a bimetalic strip inside the clutch.
Interesting, but I wonder if that would really be as effective as using some engine temperature parameter such as coolant and/or oil temperatures to trigger the fan.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com