Shaynus Posted October 7, 2023 Report Share Posted October 7, 2023 Hi all. I went to race a Slot.it car for the 1st time, but it wasn't to be. It was as if the car had turbo lag, where the speed / acceleration deluvery out of corners, down straights was slow, slow, slow, FAST! There was a faint electric burning smell, so I parked it for the evening. Had a look this morning and saw this: Now for a bit of context. The "car" (white kit) has been sitting around neglected for almost a year, so perhaps that explains the "patina " on the motor? Before driving it, I did run it in (unusual for me these days!), in water, dried it out, lubed, etc, etc, same as I've done in the past with no problems. My question is, can this motor be saved? Is it worth the effort? Can I just remove the small diode type board thingamajig on top? Any thoughts, experiences, opinions are appreciated (publicly at least! ) Cheers, Shaynus Quote Link to comment Share on other sites More sharing options...
kalbfellp Posted October 7, 2023 Report Share Posted October 7, 2023 That is small capacitor to stop effecting Radio/ TV, just remove it, but may not be the only problem. 1 Quote Phil https://www.hobartminiaturecarclub.com/ Email Link to comment Share on other sites More sharing options...
SlotsNZ Posted October 7, 2023 Report Share Posted October 7, 2023 The motor can appears to have rust on it - incredible. How long did you say it has been sitting around? Those wee choke/capacitor things can be removed - or just cut across it, to prevent it creating any circuit. You will soon know if it is the cause of the problem 1 Quote Custodian of many used screws (quite a few loose ) * Recovering Lapsed Slot Addict * Companion of other delusional slot addicts * Total kidder Link to comment Share on other sites More sharing options...
Oldman Posted October 8, 2023 Report Share Posted October 8, 2023 Just a thought about the rust.... May be the right way.... May be the wrong way...This is my way of running in motors Aprox 2 hrs in distilled water @ 5 volts Blow out water then oil bearings Aprox 30 min in alcohol @5 volts Blow out alcohol then oil bearings Im sure every body has there own way Quote Link to comment Share on other sites More sharing options...
mattcrackers Posted October 8, 2023 Report Share Posted October 8, 2023 No, No, Yes. lol. Bin that motor and put a new one in. Coming from a bloke who bins nothing. haha 1 Quote Link to comment Share on other sites More sharing options...
Shaynus Posted October 8, 2023 Author Report Share Posted October 8, 2023 (edited) 16 hours ago, SlotsNZ said: The motor can appears to have rust on it - incredible. How long did you say it has been sitting around? Those wee choke/capacitor things can be removed - or just cut across it, to prevent it creating any circuit. You will soon know if it is the cause of the problem I honestly can't remember, but I definitely know I laid the 1st layer of paint on it last summer... (somethings take time...) I just checked, I got it well over a year ago... Edited October 8, 2023 by Shaynus Quote Link to comment Share on other sites More sharing options...
Kieran Posted October 9, 2023 Report Share Posted October 9, 2023 Running in - really? Do I have to? Quote Link to comment Share on other sites More sharing options...
ShawnK Posted October 16, 2023 Report Share Posted October 16, 2023 On 10/7/2023 at 8:12 AM, Shaynus said: Hi all. I went to race a Slot.it car for the 1st time, but it wasn't to be. It was as if the car had turbo lag, where the speed / acceleration deluvery out of corners, down straights was slow, slow, slow, FAST! There was a faint electric burning smell, so I parked it for the evening. Had a look this morning and saw this: Now for a bit of context. The "car" (white kit) has been sitting around neglected for almost a year, so perhaps that explains the "patina " on the motor? Before driving it, I did run it in (unusual for me these days!), in water, dried it out, lubed, etc, etc, same as I've done in the past with no problems. My question is, can this motor be saved? Is it worth the effort? Can I just remove the small diode type board thingamajig on top? Any thoughts, experiences, opinions are appreciated (publicly at least! ) Cheers, Shaynus If there is rust in there, it could cause problems. Quote Link to comment Share on other sites More sharing options...
ShawnK Posted October 16, 2023 Report Share Posted October 16, 2023 On 10/8/2023 at 3:23 AM, Oldman said: Just a thought about the rust.... May be the right way.... May be the wrong way...This is my way of running in motors Aprox 2 hrs in distilled water @ 5 volts Blow out water then oil bearings Aprox 30 min in alcohol @5 volts Blow out alcohol then oil bearings Im sure every body has there own way Of course, you can "bathe" your car in water and alcohol. But metals do not like water, especially iron. Because of the connection with water, oxides are created which spoil the connection. You can, of course, continue to do this as long as it doesn't cause problems. But if it does, maybe you shouldn't keep "bathe" your car. Quote Link to comment Share on other sites More sharing options...
Shaynus Posted October 16, 2023 Author Report Share Posted October 16, 2023 Bit of an update - I removed the small capacitor board thingie. While the power delivery definitely improved a less severe lag / hesitation was still noticeable. While I am inclined to think the motor is a bit FUBAR, I'll try giving it another flush out and see what happens - nothing to lose! Quote Link to comment Share on other sites More sharing options...
munter Posted October 17, 2023 Report Share Posted October 17, 2023 (edited) open it up and get a good look at the brushes and commutator especially where the wire attaches to the comm. A bad joint here can affect performance.... Edited October 17, 2023 by munter because I thought of more to say 1 Quote John Warren Slotcars are my preferred reality Link to comment Share on other sites More sharing options...
wizardgm Posted October 19, 2023 Report Share Posted October 19, 2023 (edited) SlotIt motors for some time now have been using 'crimped & spot welded' commi lugs. These either work or don't work - they rarely fail. What I'm thinking is that the commi slot has become full of brush dust and this causes a 'ring of fire' when the motor is running. The only solution to this is to clean out the slots with a VERY fine scraper. A thinned down hobby knife blade will work. Good luck, but I am thinking that a 'round receptical' is waiting for this motor.... Edited October 19, 2023 by wizardgm changed File to Fine !! 1 Quote Link to comment Share on other sites More sharing options...
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