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Ski-Doo Offers Gen4 Updates To Extend Belt Life

Snow Goer staff
2017 Ski-Doo Summit X 850 E-TEC

2017 Ski-Doo Summit X 850 E-TEC

In an attempt to get ahead of some drive belt issues experienced by some buyers of its 2017 snowmobiles in the new REV Gen4 chassis — and particularly on its mountain sleds — Ski-Doo today announced a few specific updates that will be done at Ski-Doo dealerships free-of-charge and a few other steps that it is suggesting consumers may want to take.

Below is the press release from Ski-Doo:  

2018 Ski-Doo Summit/Freeride Driveline Updates and 2017 Belt Durability Improvements

You might recall that for Model Year 2018, BRP announced changes to Ski-Doo REV Gen4 snowmobiles proven to increase drive belt durability – these are recapped here:

  • New gearing (Summit and Freeride)
  • New belt
  • Better cooling in CVT compartment  – New Clutch cover with improved flow
  • Revised PTO and MAG engine mounts
  • Revised CVT Calibration
  • Finned fixed pDrive sheave
  • Frame reinforcement (directs air flow for better cooling) on mountain sleds

 

Also, as promised, we are updating you on steps we’ve taken for Model Year 2017 REV Gen4 owners that experienced early belt failure, and those are outlined below.

While the vast majority of 2017 owners did not experience an issue related to drive belt life, there was a considerable amount of buzz surrounding belts and heat last season. We want owners to know that Ski-Doo is being proactive and transparent in addressing any real or potential issue well before your next riding season. Furthermore, as the OEM it’s our job to deliver on our product promises – and that’s why we’re reaching out to you today.

For Summit 2017 REV Gen4 owners who’ve experienced early belt failure, BRP will provide, the following updates:

  • Gear ratio change (21 top/53 bottom)
  • PTO Engine Mount Shims

Those updates will be available, at no cost for the customer, on both 154- and 165-inch platforms. Combined with the new belt (part number 417 300 531), they will significantly improve belt life and lower driveline temperatures.

Note that other MY18 improvements shown below are backwards compatible and can also be installed on MY17 snowmobiles at the owner’s discretion and expense. Contact your dealer for more information.

          

Order of effectiveness Description Covered by
1 Change Gear Ratio (21/53) BRP
2 Install improved drive belt 417300531 Owner
3 Remove engine cover and modify CVT cover  (see dealer for details) Owner
4 Install shims on PTO engine mounts BRP
5 Replace drive pulley fixed sheave Owner
6 Install engine compartment reinforcement plate Owner

 

Crossover and Trail sleds:

Even though most drive belt issues were related to mountain use, early drive belt failure can also sometimes occur on crossover and trail models in very specific riding conditions.

BRP has made the following options available on MY17 MXZ and Renegade models, listed here in order of effectiveness based on our testing. These are available at the owner’s discretion and expense:

 

Order of effectiveness Description Covered by
1 Install improved drive belt 417300531 Owner
2 Remove engine cover and modify CVT cover (see dealer for details) Owner
3 Install shims on PTO engine mounts Owner
4 Replace drive pulley fixed sheave Owner
5 Replace MAG engine mount Owner
6 Install engine compartment reinforcement plate Owner

 

 

Contact your dealer for more information on those upgrades.

One comment

  1. Should the recommended owner changes for MY 2017 Renegades also be performed on MY 2016 Renegades?

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