Eliminate A/C compressor from serpentine 3.9? - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old December 28th, 2010, 09:45 AM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Eliminate A/C compressor from serpentine 3.9?

This happens to be a 3.9 from a 95 Disco, but I believe this is the same as a 97 D90 which has the serpentine belt.

I have no need for the A/C compressor and the workshop manual shows a belt routing diagram with and without A/C by changing the orientation of the idler pulley mount. The pictures are not exactly to scale and show the idler pulley bigger on the non A/C picture, but I am not sure if this is just poor artistry or it's actually bigger. It also makes no mention of a shorter belt size.

I'll find out sooner than later when I try it, but has anyone done this?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old December 28th, 2010, 10:13 AM
revor's Avatar
revor
Status: Offline
Keith Kreutzer
Old beat up 110
D-90 Source Vendor
 
Join Date: Sep 2003
Location: Longmont, Colorado
Posts: 998
Never tried it but it would be good information to know, but it seems another idler would be required to keep things going the right direction.

Another note, doesn't the 95 Disco have a distributor? Meaning 14CUX. The 97 does not, which is GEMS.
__________________
Keith

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



Big, Red and ... aaa Red..
Reply With Quote
  #3  
Old December 28th, 2010, 10:15 AM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Yeah it's 14CUX but the engine is going into a '94 D90. I'll scan the manual page to show you what I am seeing with regards to the idler pulley.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old December 28th, 2010, 10:40 AM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Here is the page from the manual. It looks like the top picture right now, and I want to convert to the bottom style
Attached Files
File Type: pdf 3.9serpbelt.pdf (651.9 KB, 82 views)
Reply With Quote
  #5  
Old December 28th, 2010, 11:30 AM
woldd90's Avatar
woldd90
Status: Offline
Scott
1997 D90 ST #1444
Site Team
 
Join Date: Aug 2005
Location: Georgia
Posts: 5,329
Is this for the white 90?
__________________
Scott

Reply With Quote
  #6  
Old December 28th, 2010, 11:31 AM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
yes.
Reply With Quote
  #7  
Old December 28th, 2010, 12:31 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
Remove the a/c compressor and in stall a D2/early P38 tensioner(grooved pulley)assembly in the place of the old smooth pulley assembly. Install it clocked 180 of the old assembly and get the belt for it(napa #25-070733). I did this years ago on a few different rovers at the shop for people that didn't need the a/c anymore(buggys,ruggys,and modded rigs). It works for both GEMS and 14CUX set-ups as long as it is a serp drive set-up. Good luck.
Reply With Quote
  #8  
Old December 28th, 2010, 12:36 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Mmh, yes I see it would need a grooved tensioner pulley... Sounds like more effort than I want to put into it to be honest - I can just leave the compressor in place
Reply With Quote
  #9  
Old December 28th, 2010, 12:42 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
Sure you can. It's all bolt on stuff,shit it's only one bolt you have to undo. One belt and one pulley. the mount is the same on both assemblys and there is even a hole built into the mounting surface of the old brackets(no drilling).

------ Follow up post added December 28th, 2010 01:47 PM ------

Not to hijack the thread but are you Jonathan's brother? I think Kaz and I met you years ago @ MAR. We were the only dummys roll'n on 35-37in boggers in the early 90's.
Reply With Quote
  #10  
Old December 28th, 2010, 12:47 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
No, it means buying more parts I don't have which takes time and money I'll check Will for one, but I'm not going to do it if it takes much time or money. Call me lazy, but it's fine as-is too.

------ Follow up post added December 28th, 2010 12:48 PM ------

If by Jonathan you mean Jonathan Galpin from Lutz (North Tampa) Florida then yes.
Reply With Quote
  #11  
Old December 28th, 2010, 01:08 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
It shouldn't be much $$$ especially if you are using used parts. I would use a new belt(haha). 20min tops to install. That's funny...small world. I figured there could only be so many south Africans in Virginia.
Reply With Quote
  #12  
Old December 28th, 2010, 01:11 PM
nikojo's Avatar
nikojo
Status: Offline
John
D90 SW -- 2.8PS
Member
 
Join Date: Jun 2008
Location: Fly over Country
Posts: 587
Quote:
Originally Posted by cgalpin View Post
Mmh, yes I see it would need a grooved tensioner pulley... Sounds like more effort than I want to put into it to be honest - I can just leave the compressor in place
Why not use it for onboard air?
Reply With Quote
  #13  
Old December 28th, 2010, 01:18 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
I actually have this same setup in my D90 and that's the plan for it (have not done so, but the compressor has been happily there for years). However, for this particular "project" I am just interested in getting this D90 running so I can sell it, so I will not be putting anything like OBA on it. It's stock anyway. I could leave the A/C as a bonus in case the next owner wants to add A/C.
Reply With Quote
  #14  
Old December 29th, 2010, 02:15 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
In the name of research I decided to give this a try. RoverGuy is nucking futs, and had the part at my door at 11:40 am today. So during lunch I pulled the compressor and the existing tensioner and installed the replacement with the grooved pulley. It certainly looks like this will work fine with a shorter belt. Will need to make a trip to a parts store one of these days unless jefhuf is going to run by one (hint hint Jeff). Pictures show the old tensioner removed revealing another threaded hole and alignment hole on the bottom, which the pulley assembly mounts to in the 180 clocked orientation. Second picture if of replacement tensioner installed.
Attached Thumbnails
Click image for larger version

Name:	IMG_0044.jpg
Views:	96
Size:	272.0 KB
ID:	34336   Click image for larger version

Name:	IMG_0045.jpg
Views:	101
Size:	247.6 KB
ID:	34337  

Reply With Quote
  #15  
Old December 29th, 2010, 04:04 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Quote:
Originally Posted by Roverchef View Post
get the belt for it(napa #25-070733)
How sure are you of this part number? On napaonline.com the picture appears to be a very short belt, and it's a bit pricey.

http://www.napaonline.com/Search/Det...733_0258819870

This site has one for $17 (less than half the price), cross referencing to this napa part number

http://www.vbeltsupply.com/ecommerce/733k7.html

charles

------ Follow up post added December 29th, 2010 04:57 PM ------

I went out and took some measurements at 74.05" vs 88.67" that looks to be the right length for the slack I have. I'm going to try the cheaper belt and worse case I can make it a spare if it appears to be poor quality.
Reply With Quote
  #16  
Old December 29th, 2010, 05:20 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
I'm staring at it on a rig right now. the part # is 25-070733 from Crapa! That pic is not the real belt...duh! Go down to the store and get the one that I gave ya the part # for....I only spent about three hours going through belts to find the exact one years ago. I'm try'n to save you time/headaches.
Reply With Quote
  #17  
Old December 29th, 2010, 05:25 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Thanks Jake. The specs from vbeltsupply.com matched so I ordered from there. I'll report back once I fit it.
Reply With Quote
  #18  
Old January 3rd, 2011, 07:10 PM
GYM's Avatar
GYM
Status: Offline
Gary
97 SW
Member
 
Join Date: Jul 2006
Location: West Coast
Posts: 1,062
Quote:
Originally Posted by Roverchef View Post
Remove the a/c compressor and in stall a D2/early P38 tensioner(grooved pulley)assembly in the place of the old smooth pulley assembly. Install it clocked 180 of the old assembly and get the belt for it(napa #25-070733). I did this years ago on a few different rovers at the shop for people that didn't need the a/c anymore(buggys,ruggys,and modded rigs). It works for both GEMS and 14CUX set-ups as long as it is a serp drive set-up. Good luck.

Do you have a part number for the grooved pulley by chance?
Reply With Quote
  #19  
Old January 5th, 2011, 06:36 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
The 733k7 belts look good and fit nicely. It's on the 2/3 mark on the tensioner. 2 of them cost less than one Napa one shipped.

I don't have a part number but Will Tillery can hook you up. I got a like new looking assembly (arm and pulley) for $45 shipped. But yes you only need the grooved pulley (which is slightly larger than the smooth one too).

Thanks for the help RoverChef
Attached Thumbnails
Click image for larger version

Name:	IMG_0065.jpg
Views:	91
Size:	266.6 KB
ID:	34548   Click image for larger version

Name:	IMG_0066.jpg
Views:	82
Size:	139.6 KB
ID:	34549  

Reply With Quote
  #20  
Old April 22nd, 2017, 03:35 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 11,625
Registry
Gary, did you happen to record the grooved pulley part number? Thinking about doing this same mod on my red 90 if I don't install the york compressor I've had on the shelf for years.
__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
compressor

Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
95 D90- A/C WIRING DIAGRAM (Davia) --> norros Defender Technical Discussions 30 July 7th, 2010 03:38 PM
3.5 to 3.9 install kellymoe Defender Technical Discussions 3 February 6th, 2006 01:24 PM
3.9 to 4.6 1995 D-90 boxerhips Defender Technical Discussions 5 January 25th, 2006 07:20 PM
A/C wiring in 95 jcasteel Defender Technical Discussions 1 August 14th, 2005 06:53 PM
Pulling out the A/C m.michaels Defender Technical Discussions 5 June 7th, 2004 12:01 PM


All times are GMT -5. The time now is 08:05 AM.


Copyright