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Front Sprocket Recall - Interim Repair Completed
- Thread starter stewartj239
- Start date
luminavanman
New member
My RT LTD is at BRP for a few things and also the recall which was one of them. BRP said the sprocket is good with 61k. I will wait for the permanent fix knowing I won't suddenly decel in front of a vehicle now. One less thing to worry about!
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stmike 1800
Member
I had mine in for the inspection yesterday and it passed, good to go. I have 26000 km on my 2018 RT.
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pidjones
New member
Brought my neighbor home yesterday from Mountain Motorsports Kodak after he dropped off his 2018 RT. They told him a couple days, and that they would be replacing his front sprocket with a temporary until the correct ones come in. Mine is a '21, so I guess it is up to me to keep an eye on it.
How many miles to it failing?
rjinaz86323
Active member
9500. Looks fine. No dust, but was out of spec.
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rjinaz86323
Active member
Fantastic. Thank you very much. Do you have a tracking number?
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Peteoz
Well-known member
Pauly, I’m not sure why you quoted my response in your detail of the fretting process. As far as I am aware there was no misinformation in my post, just a possible explanation as to why you may have a sprocket fail the “play” test even without red dust showing:dontknow:
Pete
Pete
Blake33
Member
I took my 2018 RT Ltd with about 4,100 miles to the dealer this week for the interim sprocket repair procedure. In my case the sprocket is fine so it was not replaced.
The service manager told me the dealership has performed many sprocket examinations under the recall but that few have failed the test and have had to be replaced at this point. He said there seems to be no common denominator linking the failed sprockets, and that neither mileage nor age seem to be closely correlated with the failures. He told me about a married couple with matching Spyders (don't know the year) who had recently brought them both in for the interim recall procedure. His sprocket was in excellent condition whereas hers failed the test and had to be replaced. Same Spyder model, same model year, roughly the same mileage.
The following information is printed on my recall service repair order, which might be of interest:
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5113208 - 2019-11 SPROCKET RECALL
Description: PROBLEM
As covered in the Safety Campaign Bulletin 2019-10, the front sprocket may be defective and may be subject to premature wear.
Resolution: SOLUTION
This procedure is an interim solution until the final repair is available.
Measure front sprocket play to ensure the integrity of the splines.
If measurement is within specification, re-tighten sprocket screw to new specification.
If measurement is out of specification, replace the front sprocket and tighten sprocket screw to new specification.
NOTE: This procedure is an interim solution.
Repeat this procedure every 16,000 km (10,000 miles) until the final repair is available and done.
--------------------------------------------------------------------------
One of my dealer's service department personnel told me the permanent sprockets might not be available until next spring.
The service manager told me the dealership has performed many sprocket examinations under the recall but that few have failed the test and have had to be replaced at this point. He said there seems to be no common denominator linking the failed sprockets, and that neither mileage nor age seem to be closely correlated with the failures. He told me about a married couple with matching Spyders (don't know the year) who had recently brought them both in for the interim recall procedure. His sprocket was in excellent condition whereas hers failed the test and had to be replaced. Same Spyder model, same model year, roughly the same mileage.
The following information is printed on my recall service repair order, which might be of interest:
-------------------------------------------------------------------------
5113208 - 2019-11 SPROCKET RECALL
Description: PROBLEM
As covered in the Safety Campaign Bulletin 2019-10, the front sprocket may be defective and may be subject to premature wear.
Resolution: SOLUTION
This procedure is an interim solution until the final repair is available.
Measure front sprocket play to ensure the integrity of the splines.
If measurement is within specification, re-tighten sprocket screw to new specification.
If measurement is out of specification, replace the front sprocket and tighten sprocket screw to new specification.
NOTE: This procedure is an interim solution.
Repeat this procedure every 16,000 km (10,000 miles) until the final repair is available and done.
--------------------------------------------------------------------------
One of my dealer's service department personnel told me the permanent sprockets might not be available until next spring.
No incorrect info, Pete! My response, and that of PMK, was to add depth into causation and definition of the mechanism of failure. Fretting is not worrying, in this case.
The randomness of failure could be when certain surface finishes and mating steel conditions, along with lubrication, combine to promote failure. No one has collected enough objective data to analyze the failures. Once the sprocket has been removed from the output shaft, significant visual data has been compromised. We have 3 F3 models: one failed at under 20K miles while one has over 32K without issues; the other has only 4K miles.
Related: years ago, I worked developing a coining/metal stamping process on aluminum. Liquid lubrication on the surface of either the die (tool steel or carbide) or workpiece (aluminum) would coalesce in micron to 0.1mm pools and indent the surface of the aluminum workpiece. Most grease is "liquid": in a sliding / rotating motion, a film of lubricant would be realized, and reduce wear. Whereas this sprocket doesn't have that motion, the mere presence of a grease doesn't ensure lubrication. The moly grease has microscopic particles that aid to ensure a film of lubrication as well as being load-bearing particle's themselves.
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