Drive belts

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Revision as of 09:32, 24 February 2019 by Bosanek (talk | contribs) (Minor phrase correction)
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Introduction

  • This article deals with the engine drive belts and associated tensioners, their configurations and adjustment.


  • Petrol Jimnys have an auxiliary belt (fan belt) and a power steering belt.
    • There are a number of combinations and it is essential you get the correct belt.
  • Diesel Jimnys have one auxiliary belt which drives all auxiliary engine devices.

Warning Icon.pngYou should not purchase based on guidance below - you should identify the correct belt for your vehicle elsewhere.



Nomenclature

For shorter naming, these abbreviations and designations will be used in this article:

  • P.S. - Power Steering
  • A.C. - Air Conditioning
  • G13BB - petrol engine, used in very early petrol Jimnys gen3 and many cabrio / open top petrol Jimnys gen3;
  • M13A / M13AA / M13A VVT - family of petrol engines, used in most petrol Jimnys gen3 from 2001 to 2018;
    • All variants of this engine are effectively the same from the "drive belt choice" perspective;
  • K9K - Renault's diesel engine, used in all diesel Jimnys gen3;
    • This engine exists in two variants, but both are effectively the same from the "drive belt choice" perspective;
  • K15B - petrol engine, used in Jimnys gen4;


G13BB with P.S. but without A.C.

G13BB with PAS
  • PAS: Adjust mid point of belt between Pump and Crank (lower belt section) to 6 – 9 mm (0.24 – 0.35 in.) of flex by adjusting tensioner
  • Shop for V-Belts in BigJimny Shop



G13BB with P.S. and with A.C.

G13BB with PAS and Aircon



M13AA with P.S. but without A.C.

M13AA with PAS
  • Auxillary Belt - known part number for some models 95141-50F01
  • PAS:Adjust mid point of belt between Pump and Crank (lower belt section) to 6 – 9 mm (0.24 – 0.35 in.) of flex by adjusting tensioner
  • Shop for V-Belts in BigJimny Shop



M13AA with P.S. and with A.C.

M13AA with PAS and Aircon
  • Auxillary Belt - known part number for some models 95141-50F01
  • PAS+Aircon Belt - known part number for some models 17521-52E00
  • PAS: Adjust horizontal (bottom) of belt to 6 – 9 mm (0.24 – 0.35 in.) of flex by adjusting tensioner
  • Shop for V-Belts in BigJimny Shop



M13AA without P.S. but with A.C.

M13AA with PAS
  • Auxillary Belt - known part number for some models 95141-50F01
  • Aircon: Adjust horizontal (bottom) of belt to 6 – 9 mm (0.24 – 0.35 in.) of flex by adjusting tensioner
  • Shop for V-Belts in BigJimny Shop



K9K

  • Info needed ...


K15B

  • Info needed ...


Tensioners for Jimnys gen3

There basically two types of tensioners for petrol Jimnys gen3:

  • One with a small center;
    • These are more common on the G13B engines;
  • One with a large center;
    • There are more common on the M13A family of engines;

Warning Icon.pngYou should not purchase based on guidance below - you should identify the correct tensioner for your vehicle.



Small hole tensioner

Small hole tensioner
  • This is Suzuki part number 49160-82A00.
  • If the bearing has worn, then it can be replaced by pressing the old bearing out.
  • A suitable bearing is available in the BigJimny Shop HERE



Large hole tensioner

Small hole tensioner
  • This is Suzuki part number 49160-81A00.
  • This tensioner is commonly called a "smilely tensioner" because of the appearance.
  • If the bearing has worn then it can be replaced by pressing the old bearing out of the outer rim and pressing the smilely centre out.
  • A suitable bearing is available in the BigJimny Shop HERE



Replacements

  • First of all, the BigJimny shop has a high quality replacement bearing for sale (read above).
  • However, if you for some reason want to replace the entire tensioner assembly (generally a lot more expensive), you can either buy the original Suzuki P.N. 49160-81A00, or one of the aftermarket tensioners.


  • By the way, the bearing which Suzuki originally installs in this tensioner is NSK 6010DU2 (that's at least the case in M13A engined Jimnys made in 2013).
    • That bearing has rubber seals on both sides.
    • Specifications are: single-row, ball bearings, deep groove, 50 x 80 x 16 mm
  • NSK has allegedly superseded it with the bearing model 6010DDU.
    • However, since the specifications of those two bearings appear to be the same, it could very well be the same bearing, but just a changed naming nomenclature.


  • There is also a "premium" edition of this bearing.
  • The "VV" suffix means that is has special "contactless" double sided rubber seals (and made of some super tech rubber), which effectively allow far higher bearing RPMs and operating temperatures.
    • However, this premium bearing is about 3x more expensive than the "ordinary" one.
  • This premium bearing may be an "overkill" for this application (in other words, the standard bearing may be sufficient), but an expert should give an opinion.
    • However, if someone wants to indulge themselves with this premium bearing edition (instead of using chocolate or sex dolls for a change), then buy NSK 6010VV.


Tensioners for Jimnys gen4

Info needed ...


Torque Settings

Full details of the torque settings can be found in the reference data


Page last edited on 24/02/2019 by user Bosanek