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Item Posts    Sort Order

Alternator belt & power steering belt sizes

 
andy744
New User
Posts: 5
Joined: 08/12
Posted: 02/09/13 05:01 AM

Hi,
Please can anybody tell me the correct sizes of the alternator belt and power steering belt.
Where I live I need to order by size. Inches, or mm or both would be good.

1966 Ford Mustang 289ci automatic convertible.

Thank you,

Andy  
66 Mustang V289

Post Reply
waynep71222
Enthusiast
Posts: 455
Joined: 04/12
Posted: 02/09/13 10:13 AM

there is a problem....  mustangs were built with several V8 289 engines and several pulley and belt options...
these are GATES belt part numbers...

Fan & Alt.; W/A.C.; W/O A.P.; W/Single Belt High Capacity V-Belt (Standard) 7395  40 1/8 (1020) 3/8 (9.5/10)  

Fan & Alt.; W/A.C.; W/O A.P.; W/Dual Belts High Capacity V-Belt (Standard) 7395 2 Req 40 1/8 (1020) 3/8 (9.5/10)  

Fan & Alt.; W/A.C.; W/A.P.; W/Single Belt  High Capacity V-Belt (Standard) 7405  

Fan & Alt.; W/A.C.; W/A.P.; W/Dual Belts High Capacity V-Belt (Standard) 7405 2 Required  

Fan & Alt.; W/O A.C.; W/Single Belt High Capacity V-Belt (Standard) 7405 41 1/8 (1045) 3/8 (9.5/10)

Fan & Alt.; W/O A.C.; W/Dual Belts High Capacity V-Belt (Standard) 7405 2 Req 41 1/8 (1045) 3/8 (9.5/10)


Power Steering.; W/O A.C.; W/O A.P. High Capacity V-Belt (Standard) 9451  45 3/8 (1155) 1/2 (12.5/13)  

Fan &  Power Steering.; W/A.C. High Capacity V-Belt (Standard) 7495 50 1/8 (1275) 3/8 (9.5/10)

Fan & Power Steering.; W/O A.C.; W/A.P. High Capacity V-Belt (Standard) 7495 50 1/8 (1275) 3/8 (9.5/10)  

A.C. High Capacity V-Belt (Standard) 9540 54 3/8 (1380mm) 1/2 (12.5/13)  

Fan To A.P.; W/O A.C. High Capacity V-Belt (Standard) 7312  31 5/8 (805mm) 3/8 (9.5/10)


warning.... with your existing belts off...   place a chalk mark at one spot on the outside...  use a tape measure to work your way around the belt.. this will get you the closest...

you can also read some of the numbers that almost every belt has... post them.. i can translate them... if you post the measured length...

these gates numbers are probably slightly longer than what's on your car when measured.. as the gates belts stick up slightly above the rim of the pulley...   this is to increase strength and life span...


read this from gates about this series of belts..

Showing Our Belt Numbers
with Corresponding Nominal Outside Lengths,
Top Widths and Angles
IMPORTANT: Lengths shown (O.C. is Outside Circumference) are obtained by measuring around the outside
of the belt. These lengths will not agree exactly with the size significant belt numbering system which
is based on the effective length of the belt. Effective length ("engineered" length) cannot be measured
in the field because special tools are required.
Automotive Top Widths are the standard sizes defined by the automotive belt industry (SAE J636). Due
to manufacturing processes that create "Vertical Flats", the top width of XL and Truck/Bus series V-Belts
will not agree with the printed top width dimensions. Top width on this page and on the belt sleeve refers
to the pulley groove width and not the actual top width of these belts. A picture of a V-Belt with "Vertical
Flats" is shown below. Actual top width of like belt sizes will also vary slightly depending on the manufacturer
and belt style.
 

Post Reply
54packman
Enthusiast
Posts: 343
Joined: 11/09
Posted: 02/09/13 03:48 PM

well one other thing i find that works to, is use a piece of 3 wire extension cord, wrap it around the pulleys  with the tensioner at almost the shortest position, tape the two ends together,  then slacken off the tensioner, remove the cord, and go to the parts shop, where they can measure your cord, and give you the right size from that.  

Post Reply
andy744
New User
Posts: 5
Joined: 08/12
Posted: 02/09/13 10:32 PM

Hello Waynep71222,

Thank you. That was amazingly helpful.
And actually not such a daunting number of choices - it is quite easy to narrow it down to just one belt.

I'm a bit slow sometimes so, Please can you help me out with one of the abbreviations,  
I can work out W/O A.C. means (without aircon)   but  what does the A.P.  stand for in W/O A.P.

I thought it might be Auto Pilot but I don't have one of those yet!

Thank you

Andy  
66 Mustang V289

Post Reply
andy744
New User
Posts: 5
Joined: 08/12
Posted: 02/09/13 10:35 PM

Hi 54Packman,

Good idea I will do that as well.

Thank you,

Andy  
66 Mustang V289

Post Reply
waynep71222
Enthusiast
Posts: 455
Joined: 04/12
Posted: 02/10/13 12:09 AM

W/O A.C. means (without aircon)  

but  what does the A.P.  stand for in W/O A.P.

Air pump as in smog pump usually on california emission cars...

with/out air pump..  federal emission and export model cars..

this is a slightly later probably 390 motor.. just to let you know what i am talking about.
0900C1528027a00c  

Post Reply