MrDGH111

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About MrDGH111

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  1. MrDGH111

    Boomerang motors keep blowing !!!

    Very interesting ! Well I did as most were recommending and pulled to pieces the gearboxes, found nothing obvious, no damage, no wear, not even sticky grease in fact it all looked very nice (I can’t believe after all this time but it’s true), the grease even looked (to me) to be adequate. Anyway whilst it was in pieces I cleaned and re-greased, I didn’t go crazy with the grease (I didn’t have any Tamiya grease, I used what I had - White Lithium). I also removed all 4 wheels and inspected, cleaned and re-fitted (didn’t use any grease here, thought it’d attract too much dirt ???). I,ll be honest I don’t think I’ve fixed anything, but I have to go buy another motor again to find out (this will be number 4 !). BUT… Now reading Juggular’s suggesting ‘A Light Has Come On’ I remember when I took off the first blown motor (the original from 1986) I found these metal plates laying on the bench, I’ll be honest I don’t know what order they were in as to begin with I didn’t even know where they’d come from, I quickly realised but on re-fitting the new motor I ‘guessed it’ and also too for each other new motor after, this could be my problem right here couldn’t it ? Now I have the detailed info I just need to count the teeth on my pinion and hold my breath ! There are only 3 plates though, so either it only ever had 3 or I lost one during the first strip down, I’ll have to get one made up somehow this weekend I guess, I’ll keep you posted. Thanks Juggular, you’ve given me some hope.
  2. MrDGH111

    Boomerang motors keep blowing !!!

    Im learning quite a lot here, i was hoping for an hours worth of non stop fun, i bought 2 batteries [4400mAh], so i could switch batteries when the first went flat, its looking like im gonna have to get used to the idea of a maximum of 30mins. Is there no way of achieving 1hour ? no way of improving the cooling of the motor whilst its been used ?
  3. MrDGH111

    Boomerang motors keep blowing !!!

    Yes does last a little longer on tarmac, just not as much fun though, but neither is fitting a new motor every 2 hours so i guess i have to change my ways.
  4. MrDGH111

    Boomerang motors keep blowing !!!

    Interesting info. thanks
  5. MrDGH111

    Boomerang motors keep blowing !!!

    Ball bearings and re-grease looks like the way forward (and another new motor...Silver can again i guess ?) Yes i did build the car originally, good idea to include my son with this re-build. Thanks for the manual link, itll be very helpful.
  6. MrDGH111

    Boomerang motors keep blowing !!!

    Ok, looks like ive gotta give this a go, thanks for your help
  7. MrDGH111

    Boomerang motors keep blowing !!!

    Thanks for the advise
  8. MrDGH111

    Boomerang motors keep blowing !!!

    Sorry i dont have a clue about the pinion ? whatever came as standard back in 1986. This car is [was*] all completely factory standard. *now fitted with 4400mah NiMh and a ESC No im not aware of 'Hotshot gearbox's pinion meshing system with the 4 stick plates' or how it work ?
  9. MrDGH111

    Boomerang motors keep blowing !!!

    Most ive got out of the Boomerang [using the 4400mah battery] is 30mins, sometimes as little as just under 20mins, sometimes on a tarmac driveway, sometimes on the grass field next to my house but i did buy a second battery and when the first goes flat we slip in the second one. Have we really only gotta have 10-15mins of fun at a time ? Its mainly my 6 year old son who is absolutely loving his new found pastime, if i tell him hes got sit and watch it cool down for 30mins hes not gonna be happy, probably shoot off on his pushbike somewhere, lol.
  10. MrDGH111

    Boomerang motors keep blowing !!!

    By 'get ball bearings' do you mean for the wheels ? there aren't bearings available for within the gearbox are there ???
  11. MrDGH111

    Boomerang motors keep blowing !!!

    Ooooooookaaaaaaay, i really didnt want to have to do this [worried about breaking irreplaceable parts] but it does sound like there's a strong possibility that this maybe is contributing to [or causing entirely] my problem, thanks for the advise.
  12. MrDGH111

    Boomerang motors keep blowing !!!

    Motor doesnt work at all now. Looks like i have to go look into the gearbox then, i really didnt want to do this especially as its so old, im almost certain to have issues and break something thats difficult to obtain, so if there is somebody else out there with any other ideas please let me know before i 'put it under the knife', thanks for you help though and i do think youre right, ill keep you posted.
  13. MrDGH111

    Boomerang motors keep blowing !!!

    Thanks for reply. Ive spun each wheel individually and they all seems fine, ive also then spun both rear wheels together followed by both front wheels together, sure theres a little more resistance [which is to be expected] but not really anything that id say was definately going to cause any problems but i should say im very new to this, i dont have another car to compare it to so dont really know what i should be feeling here. I held the car against the inside of my garage internal door and quickly pulled down wards, after lifting the car away from the door the wheels spun for a couple of seconds longer [bear in mind there is the latest burnt out motor still fitted] ???
  14. MrDGH111

    Boomerang motors keep blowing !!!

    Thanks for reply. Ive spun each wheel individually and they all seems fine, ive also then spun both rear wheels together followed by both front wheels together, sure theres a little more resistance [which is to be expected] but not really anything that id say was definately going to cause any problems but i should say im very new to this, i dont have another car to compare it to so dont really know what i should be feeling here. I held the car against the inside of my garage internal door and quickly pulled down wards, after lifting the car away from the door the wheels spun for a couple of seconds longer [bear in mind there is the latest burnt out motor still fitted] ???
  15. Hi Guys, i seem to have a problem, i have a 1986 Boomerang [completely original] that i bought back to life recently, it had been stored away at my Mums house for maybe 20+ years, all i did was buy a new battery (4400Nmh Overlander) and had about 2-3hrs of trouble free fun, then the motor blew, ok i thought just replace it and try again, i bought and fitted a Tamiya 540 Silver Can, it lasted a couple of hours tops and also blew, at this point i did think maybe i should try a different type of motor but it was suggested that maybe id picked up an object [maybe a small stone off my driveway] and it had caused the problem so rather than trying a different type of motor maybe just try another standard silver can [less than £10 so why not], well this time it didnt last an hour and i noticed smoke coming firstly from the MSC so i quickly disconnected the battery, i picked up the car and noticed that if i put the car in slow speed position no problems [forward or reverse] but when i put the car in to medium speed the smoke now started coming from the ceramic resistor [?] and when i went full speed the smoke started coming from the motor, i quickly found that this motor was now also blown. So obviously theres something wrong elsewhere, i pulled the MSC to pieces and could see nothing obvious [not even any evidence of burning but decided to upgrade to an ESC, oh and a third new standard tamiya silver can. Great the car seemed better than it ever has before, also upgraded to a steering wheel type transmitter too, mainly because the ESC didnt seem to be working right with the old stick controller [brake not working as supposed to], well ive run the car now 4 times [so not quite 2 hours} and the motors gone again ! No smoke this time, not even much of a burning smell but no power from the motor to turn the wheels. Ive tried 3 different batteries and ive turned the wheels by hand to seem if anything is tight, im not really sure how free they should feel but seem ok really. Where is my problem coming from ? It has to be from within the gearbox doesnt it ? theres been no reason to look in there since i built it back in 1986 and i dont really want to have to now but i guess if you guys are in agreement with me then ill have to, or maybe theres somebody out there whos experienced this and can give me a few pointers ?