phlash
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Posts: 660
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Post by phlash on Feb 21, 2021 23:53:12 GMT -7
As witnessed yesterday at Colpar, I had a terminal issue with my #27 Red Italia in the NSR F1 race. After running part of the 2nd heat the car started making noises that indicated gear problems and it came to a halt right in front me at the controller stand. Upon inspection it was revealed that all of the crown gear teeth were sheared off as well as deformed pinion teeth. John Parker's car started displaying similar noise symptoms and I urged him to stop before it became terminal for him as well. I took a photo of this and sent it along with other photos to Customer Service @ NSR. I questioned them if there had become known any quality control issues with their latest production run of their Formula 86/89 cars. I will advise the members of our club what I find out from them and what they intend or are willing to do to correct the issue. Given the cost of these cars, a defect such as this after running such a short number of laps is inexcusable. I've attached a photo so you can see the issue.  |
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Post by Tom Dolan on Feb 22, 2021 8:43:36 GMT -7
Take the cars back to Colpar for a refund--I will make sure they do that. If any issues at the store have them call me. Sorry for the problems. I talked to Professor Motor and they will take the cars back.
Tom
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phlash
Administrator
Posts: 660
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Post by phlash on Feb 23, 2021 10:18:12 GMT -7
Thanks for helping with this issue Tom! Just to let the members know, I had contacted Andrea Noviello from NSR and sent photos to him along with an explanation of what happened to the car and the time duration of it's use. Essentially he apologized for his oversight in letting a gearing defect slip past the quality control. He also emphasized the need for lubrication of the pinion/crown hub assembly including the aluminum channel that the armature shaft runs in. He stated the usage of their product, NSR 4609 grease for this purpose is not only encouraged but essential! I enquired as to where to obtain this as I haven't seen it before. I haven't received a response yet, but he stated that he would ensure that the US distributor would be contacted by him to facilitate a set of new gears to be shipped to me.
Throughout this process, Tom had become involved having read my post and had graciously offered all involved with these issues who had purchased affected cars from Colpar to return them if they wished. Tom contacted me informing me of his conversation with Oliver of Professor Motor. He too, stressed the need for lubrication of this gearset and that he (Tom) uses the Superlube product, being unfamiliar or unaware of the NSR 4609 grease. Tom stated that he's been quite satisfied with the Superlube and has not had any issues with his NSR Formula 86/89 or any other NSR cars etc. that he's lubricated with that product. Apparently, Oliver stated that this gear issue sometimes occurs with other NSR inline configurations, so be aware and make sure the proper lubrication is carried out faithfully on these cars.
Tom also stated that Oliver will send out replacement gears for the affected cars, substituting bronze bearings (gears?) for the brass (if I understood this correctly) since these gears are more amenable or forgiving ( a little 'softer') to interact with the aluminum/nylon crown gears. If I misstated anything I apologize in advance Tom, but please feel free to correct or add anything you feel is necessary.
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Post by Tom Dolan on Feb 23, 2021 12:34:24 GMT -7
The replacement crown gears have a bronze hub--more forgiving than the aluminum ones so there shouldn't be any issues. Also they are sending new pinion gears. Tom  |
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Post by amiatanut/marc.gosselin on Feb 23, 2021 16:26:10 GMT -7
I just checked the gears on my F1 NSR and they look perfect. I too have been lubing with Superlube.
Marc
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dkmura
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Posts: 421 
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Post by dkmura on Feb 23, 2021 18:07:43 GMT -7
Sorry to hear of these problems, but interesting that all this F1 development work is being by the customers. Sounds like they're already popular enough that they'll probably be a future BSR class? Maybe I'll wait before buying one to let NSR make some changes.
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Post by Tom Dolan on Feb 23, 2021 21:11:51 GMT -7
Sorry to hear of these problems, but interesting that all this F1 development work is being by the customers. Sounds like they're already popular enough that they'll probably be a future BSR class? Maybe I'll wait before buying one to let NSR make some changes. There will be one at the store with the updated gears in it when they arrive if you want it Dave. Tom |
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Jim W
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Posts: 1,644
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Post by Jim W on Feb 24, 2021 11:17:46 GMT -7
The crown gear with an Aluminum hub is also used a some Slot.it gears. They must be "lubed" much more frequent than the brass hubs used by many companies. Since I don't lube my car before every race, I will buy the brass hub crown gears most of the time.
Jim W
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Post by Tom Dolan on Feb 24, 2021 13:28:08 GMT -7
I ordered the Super Lube and the NSR lube they recommend for the aluminum hub crowns. Tom |
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phlash
Administrator
Posts: 660
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Post by phlash on Feb 24, 2021 21:47:16 GMT -7
Is there any significant advantage to aluminum-hubbed crown gears? Is it a weight issue or something else? Perhaps spins more easily up to speed like a lightweight flywheel? Will you be getting any of the NSR aluminum-hubbed crown gears in stock also Tom? I already got some Super Lube to address the greasing issue with any cars that will require it.
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Post by Tom Dolan on Feb 25, 2021 11:54:08 GMT -7
Is there any significant advantage to aluminum-hubbed crown gears? Is it a weight issue or something else? Perhaps spins more easily up to speed like a lightweight flywheel? Will you be getting any of the NSR aluminum-hubbed crown gears in stock also Tom? I already got some Super Lube to address the greasing issue with any cars that will require it. I didn't order any aluminum hubbed gears, just the bronze replacement ones for those who need them-no charge. Tom |
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Jim W
Administrator
Posts: 1,644
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Post by Jim W on Mar 2, 2021 8:34:24 GMT -7
If you plan on replacing the crown gear, remember that NSR axles are slightly smaller in size than Slot.it axles. A Slot.it crown gear, when tightened, will be off center on the NSR axle. Same with the wheels and bushings. If you want to hop, skip and jump around the track, you can mix their parts. (Thunderslot axles are the same size as NSR)
Jim W
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dkmura
Administrator
Posts: 421
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Post by dkmura on Oct 28, 2021 7:31:40 GMT -7
Just received my NSR F1 car this week and guess what? The crown gear is still aluminum. I was hoping NSR had swapped over to the bronze crown gears in the intervening seven months, but I'll try lubing it first before trying to find a bronze crown gear and swapping over.
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Post by John Parker on Oct 28, 2021 12:26:32 GMT -7
BSP David... If we allow changing the gear to brass/bronze we need to state it in the rules. FYI ..I agree completely
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dkmura
Administrator
Posts: 421
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Post by dkmura on Oct 28, 2021 12:54:33 GMT -7
BSP David... If we allow changing the gear to brass/bronze we need to state it in the rules. FYI ..I agree completely BSP would cover any factory issued parts (particularly ones used to correct a design or materials flaw) needed. Particularly if it doesn't change the factory gear ratio. No performance advantage except the car won't break-down. |
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