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  •  » vintage air issue with v belt system

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    6/05/2018 4:21 PM  #1

    Alessandro
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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    vintage air issue with v belt system

    Hi all , 
    i am still in touch with vintage air to solve some problem with the sure fit ac kit for my fastback 66.
    There are some free interpretation of v belt dimensions and relative grooves.
    From the beginning i had problems to find a right belt ( lenght ) 
    But the worst thing is how large .
    Vintage air suggest 17/32  v belt 
    Sanden compressor  suggest v belt  type  A   THAT MEANS  12 mm or  0,47 inch  
    the rest of car pulley are  3/8    .
    I can understand some differences between inches an metrics but i cant accept  that vintage air still push me to use 17/32 belt  and that will run properly in a 3/8 groove . 
    I am not talking about phisics of quantum ....this is only common sense. 
    3/8 v belt in a 3/8 groove ( with little difference +/-- )
    I believe this big  size  will be negative  for all services except compressor .
    On the other side if i use a 3/8 belt for services will be too little to move the compressor.
    I was told from beginning that differences in pulleys will be a pain in future ... i was not wrong .
    Now this thing is not defently close because cant find a right belt to use.
    The unattended solution is a 500 usd pulley kits with all the same belt size ... if i knew it before ...

    If this is the only problem i could be happy ... but not this time .
    The overheating problem is something that was discuss many times so i dont want to go on with this .
    this is simply what's happening before and after ac kit . Before ac kit i never had temp issue , also in peak summer.
    Car temp rise simply by adding the ac radiator in front of water radiator also with ac off .
    Mostly of time when ac is on,   is on the red zone . On trafic jam i  find the sistem limit and cold air
    turn into mild cold , mean that is suffering .
    Now i am working with digital thermometer to know exactly which is water temp.
    I want to be fair about vintage air : is a good product , it works but  i found some issue that dont make me happy.
    There are gaps to fll here and there  
    imo Alessasndro

     

    6/05/2018 5:42 PM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,998

    Re: vintage air issue with v belt system

    I have CAA, the  Vintage systems are similar. I did not use the supplied 3 groove crank pulley, it was a rough cast iron mess. I ended up ordering a "V" belt set of pulleys from March which worked well for many miles.

    Last edited by Rudi (6/05/2018 5:51 PM)

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    6/05/2018 9:04 PM  #3

    Texas!
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    Registered: 6/27/2014
    Posts: 233

    Re: vintage air issue with v belt system

    As far as I know all of the grooves on 1966 SBF pulleys are 1/2". Where did you get pulleys with 3/8" grooves? I believe the smog pump on cars equipped with one were the only accessory that had 3/8" groove pulleys. I have a Sanden compressor, a 3G alternator, a stock '65 water pump pulley and a CVF crankshaft pulley and all of them have 1/2" grooves.
    Putting an A/C condenser in front of a radiator is going to block air flow to the radiator- there's no way around that. You have to compensate for it with a higher capacity radiator.

     

    6/06/2018 5:15 AM  #4

    Alessandro
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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: vintage air issue with v belt system

    Texas! wrote:

    As far as I know all of the grooves on 1966 SBF pulleys are 1/2". Where did you get pulleys with 3/8" grooves? I believe the smog pump on cars equipped with one were the only accessory that had 3/8" groove pulleys. I have a Sanden compressor, a 3G alternator, a stock '65 water pump pulley and a CVF crankshaft pulley and all of them have 1/2" grooves.
    Putting an A/C condenser in front of a radiator is going to block air flow to the radiator- there's no way around that. You have to compensate for it with a higher capacity radiator.

    Thanks !  The 3/8 size  are my trials and was good size for the groove i got . I can say i have done a mistake but 3/8 perfectly fit my grroves . 
    I will try to put 1/2 inch new belt everywhere and see what happen. ! 
    Thanks !

       •Thread Starter
     

    6/06/2018 5:18 AM  #5

    Alessandro
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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: vintage air issue with v belt system

    Rudi wrote:

    I have CAA, the  Vintage systems are similar. I did not use the supplied 3 groove crank pulley, it was a rough cast iron mess. I ended up ordering a "V" belt set of pulleys from March which worked well for many miles.

    Thanks rudi : yiour belt are all 1/2 inch  or seems to me the p.s. is little than ac ? 

       •Thread Starter
     

    6/06/2018 7:18 AM  #6

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,998

    Re: vintage air issue with v belt system

    Both belts are the same width, the camera's perspective makes the closer one appear wider.
     FYI the P/S pump is now gone, the system replaced with EPAS and the weird colored hoses are now black silicone

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    6/06/2018 10:54 AM  #7

    almcgee
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    From: Fairview, Texas
    Registered: 6/01/2013
    Posts: 783

    Re: vintage air issue with v belt system

    If you want to solve your overheating problem once and for all, order a 1970 radiator and a 5 bladed fan with schroud.  Look on this forum for how it's done.  Mustang Steve designed this modification and believe me it works perfectly.  I had overheating issues and after installing the modification, I can literally sit at an idle forever with no overheating.  It really works.

    Mustang Steve Bash in Gruene, Texas September29-30, 2023
     

    6/06/2018 1:02 PM  #8

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: vintage air issue with v belt system

    almcgee wrote:

    If you want to solve your overheating problem once and for all, order a 1970 radiator and a 5 bladed fan with schroud.  Look on this forum for how it's done.  Mustang Steve designed this modification and believe me it works perfectly.  I had overheating issues and after installing the modification, I can literally sit at an idle forever with no overheating.  It really works.

    thanks Al , i know about ms modification, but this involve to cut some sheet metal . i would like to leave as is if possible

       •Thread Starter
     

    6/06/2018 3:18 PM  #9

    almcgee
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    From: Fairview, Texas
    Registered: 6/01/2013
    Posts: 783

    Re: vintage air issue with v belt system

    The metal you cut is not noticable.  It is to open the radiator support wide enough for the new radiator.  I would challenge anyone to notice.  It is worth the one inch wide cut on each side to solve a cooling problem.  That is just my opinion and it truely will solve your problem.

    Mustang Steve Bash in Gruene, Texas September29-30, 2023
     

    6/06/2018 8:53 PM  #10

    Texas!
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    Registered: 6/27/2014
    Posts: 233

    Re: vintage air issue with v belt system

    Alessandro wrote:

    Texas! wrote:

    As far as I know all of the grooves on 1966 SBF pulleys are 1/2". Where did you get pulleys with 3/8" grooves? I believe the smog pump on cars equipped with one were the only accessory that had 3/8" groove pulleys. I have a Sanden compressor, a 3G alternator, a stock '65 water pump pulley and a CVF crankshaft pulley and all of them have 1/2" grooves.
    Putting an A/C condenser in front of a radiator is going to block air flow to the radiator- there's no way around that. You have to compensate for it with a higher capacity radiator.

    Thanks !  The 3/8 size  are my trials and was good size for the groove i got . I can say i have done a mistake but 3/8 perfectly fit my grroves . 
    I will try to put 1/2 inch new belt everywhere and see what happen. ! 
    Thanks !

    The bottom of the belt is NOT supposed to touch the bottom of the pulley groove. The belt gets it's "traction" on the pulley from the sides of the belt firmly gripping the sides of the pulley. A 3/8" belt will drop down to the bottom of the 1/2" pulley groove. This is absolutely, positively incorrect.
     

     

    6/06/2018 11:29 PM  #11

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: vintage air issue with v belt system

    almcgee wrote:

    The metal you cut is not noticable.  It is to open the radiator support wide enough for the new radiator.  I would challenge anyone to notice.  It is worth the one inch wide cut on each side to solve a cooling problem.  That is just my opinion and it truely will solve your problem.

    Thanks !  probably i need to change my point of view and go on like that !

       •Thread Starter
     

     

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