Results 1 to 7 of 7

Thread: ac belt tensioner

  1. #1
    Registered User Rif's Avatar
    Member ID
    CZCC-17426
    Join Date
    Jul 2008
    Location
    Kingston NY
    Age
    50
    Posts
    79

    Default ac belt tensioner

    I'm looking for an ac belt tensioner for a dealer installed unit on a 72 240z. Does anyone have/or know where I can find one? If someone can post a picture of theirs that would help me a lot. Thanks.

  2. #2
    Registered User siteunseen's Avatar
    Member ID
    CZCC-24724
    Join Date
    Jul 2011
    Location
    Alabama
    Posts
    1,967

    Default

    Is your's mounted in front of the valve cover, compressor on passenger's side firewall by the fuel pump? usually a York brand. Here's a "kinda" picture. It's the very top pulley. I'm at work now so I can't get one of my other '72's which is mounted on the drivers side of the motor. I'll put you up those later today if someone hasn't already.

    here's something with Napa part numbers, http://www.classiczcars.com/forums/e...y-rebuild.html
    and google.com, https://www.google.com/search?q=240z...h=508#imgdii=_

    Here's those pictures but I forgot that I'd taken the belt and pulley of the other car so I've taken one of a 280's pulley. I boxed all my Z parts up this past weekend and put them in storage but I'm pretty sure the 280's close enough to the 240's set up. The last one is my 280 with no belt, silver. First 3 are the York set up, the pulley is under the top radiator hose where it connects to the thermostat housing.

    Well the pictures shifted, the drivers side compressor on the 280 has no belt, the rest are the one on the passenger's side fire wall.

    One last thing, the top mounted pulley is adjusted by 1 big nut looking thing. The lower mounted pulley is adjusted with a threaded rod going through the mount.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC00579.jpg 
Views:	22 
Size:	158.9 KB 
ID:	72617   Click image for larger version. 

Name:	DSC00580.jpg 
Views:	21 
Size:	91.5 KB 
ID:	72618   Click image for larger version. 

Name:	DSC00581.jpg 
Views:	24 
Size:	116.1 KB 
ID:	72619   Click image for larger version. 

Name:	DSC00504.jpg 
Views:	17 
Size:	98.0 KB 
ID:	72616  
    Last edited by siteunseen; 07-08-2014 at 08:31 AM.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

  3. #3
    Registered User Rif's Avatar
    Member ID
    CZCC-17426
    Join Date
    Jul 2008
    Location
    Kingston NY
    Age
    50
    Posts
    79

    Default

    Quote Originally Posted by siteunseen View Post
    Is your's mounted in front of the valve cover, compressor on passenger's side firewall by the fuel pump? usually a York brand. Here's a "kinda" picture. It's the very top pulley. I'm at work now so I can't get one of my other '72's which is mounted on the drivers side of the motor. I'll put you up those later today if someone hasn't already.

    here's something with Napa part numbers, http://www.classiczcars.com/forums/e...y-rebuild.html
    and google.com, https://www.google.com/search?q=240z...h=508#imgdii=_

    Here's those pictures but I forgot that I'd taken the belt and pulley of the other car so I've taken one of a 280's pulley. I boxed all my Z parts up this past weekend and put them in storage but I'm pretty sure the 280's close enough to the 240's set up. The last one is my 280 with no belt, silver. First 3 are the York set up, the pulley is under the top radiator hose where it connects to the thermostat housing.

    Well the pictures shifted, the drivers side compressor on the 280 has no belt, the rest are the one on the passenger's side fire wall.

    One last thing, the top mounted pulley is adjusted by 1 big nut looking thing. The lower mounted pulley is adjusted with a threaded rod going through the mount.
    Do you have a part # for the York brand by any chance? The compressor is located on the passengers side like the 1st picture. The bracket is there but the whole pulley set up is missing.

  4. #4
    Registered User siteunseen's Avatar
    Member ID
    CZCC-24724
    Join Date
    Jul 2011
    Location
    Alabama
    Posts
    1,967

    Default

    It has a info plate on the compressor I can get a picture of, the pulley I can get you the measurements later today. It's probably close to that Napa one in that link.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

  5. #5
    Registered User siteunseen's Avatar
    Member ID
    CZCC-24724
    Join Date
    Jul 2011
    Location
    Alabama
    Posts
    1,967

    Default

    I measured and converted to mm the size of the pulley, it's close to the Napa one so I think that would work. I would have to remove mine to get the bearing hole size and I'm sorry but I'm not doing that, that thing's in a tight spot. The fan and the top radiator hose would have to come off. Anyway here's what I have, width 13/16's= 20.6 mm, overall outside diameter 3 11/16=93.6625mm. Napa one is 19mm by 94mm.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC00586.jpg 
Views:	18 
Size:	172.2 KB 
ID:	72658  
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

  6. #6
    Registered User Rif's Avatar
    Member ID
    CZCC-17426
    Join Date
    Jul 2008
    Location
    Kingston NY
    Age
    50
    Posts
    79

    Default

    It looks like there is just a pulley in the 1st and 2nd pictures. No? So there is no tensioner on the 240 like on the 280 and its just a pulley bolted to a bracket?
    Quote Originally Posted by siteunseen View Post
    Is your's mounted in front of the valve cover, compressor on passenger's side firewall by the fuel pump? usually a York brand. Here's a "kinda" picture. It's the very top pulley. I'm at work now so I can't get one of my other '72's which is mounted on the drivers side of the motor. I'll put you up those later today if someone hasn't already.

    here's something with Napa part numbers, http://www.classiczcars.com/forums/e...y-rebuild.html
    and google.com, https://www.google.com/search?q=240z...h=508#imgdii=_

    Here's those pictures but I forgot that I'd taken the belt and pulley of the other car so I've taken one of a 280's pulley. I boxed all my Z parts up this past weekend and put them in storage but I'm pretty sure the 280's close enough to the 240's set up. The last one is my 280 with no belt, silver. First 3 are the York set up, the pulley is under the top radiator hose where it connects to the thermostat housing.

    Well the pictures shifted, the drivers side compressor on the 280 has no belt, the rest are the one on the passenger's side fire wall.

    One last thing, the top mounted pulley is adjusted by 1 big nut looking thing. The lower mounted pulley is adjusted with a threaded rod going through the mount.
    Last edited by Rif; 07-12-2014 at 08:15 PM.

  7. #7
    Registered User siteunseen's Avatar
    Member ID
    CZCC-24724
    Join Date
    Jul 2011
    Location
    Alabama
    Posts
    1,967

    Default

    Quote Originally Posted by Rif View Post
    It looks like there is just a pulley in the 1st and 2nd pictures. No? So there is no tensioner on the 240 like on the 280 and its just a pulley bolted to a bracket?
    That's exactly right. 240 adjustment is by turning the backside bolt, it's big; Crescent wrench, the 280 has the vertical bolt for adjusting tension, 12mm I think but it could be a 14mm.

    240 top mounted pulley
    Click image for larger version. 

Name:	240 pulley.jpg 
Views:	19 
Size:	139.8 KB 
ID:	72714

    280 lower drivers side
    Click image for larger version. 

Name:	280 pulley.jpg 
Views:	23 
Size:	83.8 KB 
ID:	72715
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Timing Chain Tensioner
    By dawg7 in forum Engine and Drivetrain (S30)
    Replies: 13
    Last Post: 11-21-2013, 05:06 PM
  2. Gasket for timing chain tensioner??????
    By awolfe in forum Help Me !!
    Replies: 4
    Last Post: 03-20-2012, 07:30 PM
  3. Timing chain tensioner
    By gryt57 in forum Engine and Drivetrain (S30)
    Replies: 1
    Last Post: 01-13-2011, 08:10 PM
  4. timing chain tensioner
    By cmiulius in forum Engine and Drivetrain (S30)
    Replies: 3
    Last Post: 11-19-2010, 07:36 AM
  5. Tensioner pulley screaming
    By Zedyone_kenobi in forum Engine and Drivetrain (S30)
    Replies: 7
    Last Post: 11-02-2009, 08:17 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •