Volvo RWD Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 10/2017

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

AC Delco to Continental Drive Belt Conversion

Folks,

I want to replace my AC Delco alternator belts with new Continental belts. My brick has a custom aluminium crank pulley and so non-stock belts. I need an info source to convert AC specs to Continental spec... Any suggestions?

Current belts are AC Delco 15350 GM 88934298 (13/32" x 35 5/8").

Thanks.








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    AC Delco to Continental Drive Belt Conversion

    Straight conversion of 13/32" x 35-5/8" gives 10.3188 x 895.25 mm.

    If you check the Continental on-line catalog, belts in that length range are available in 10, 11.3, 11.5 and 11.9 mm widths. I think you'll find that 10 and 11.9 (both DIN standard widths) are the most commonly stocked. You would normally go with a 10 mm belt, but now would be a good time to determine if a wider belt would be a better fit, especially as the A/C compressor normally uses a 13 mm belt. Measure the width of your current belt (ideally with calipers) -let's assume it's close to 10 mm. Now check the pulley where your current belt rides highest (closest to the outer edge of the pulley). If it's riding even with or just slightly below the outside edge then 10 mm is the best match. If it's riding noticeably low then a wider belt would likely be a better fitment. Measure the width inside the outer edge of that pulley to see if it's closer to 11.9 mm (or one of the in between widths if locally available).

    As for length, any size that fits within the adjuster range (and doesn't cause the A/C compressor to hit something) would do. For the above widths, Continental appears to make belts in 885, 903, 925, 940 and 950 mm lengths. Although 903 mm is the closest fit to your belt, you may have to go longer or shorter depending on what's available. I'm not sure which are the most commonly stocked DIN sizes, but a 10x940 mm Continental belt is sold by FCP Groton for 240 alternators. For later 240's, the A/C belt length on stock pulleys is 940 mm (x 13) and it's a fairly snug fit, so that 10x940 mm alternator belt may work with your pulleys if there's lots of extra adjuster travel.
    --
    Dave -940's, prev 740/240/140/120 You'd think I'd have learned by now








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    AC Delco to Continental Drive Belt Conversion

    Where you go to buy them should be able to convert from either the numbers or the dimensions.
    --
    George Downs, Bartlesville, Heart of the USA!







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.