November 13, 201114 yr May I just point out that a fan blade can spin too fast and actually stall the airflow through a fan. I'm sure the chosen motor is fine but just incase you get any overheating issues a stalled fan may be the cause. Regards.
January 25, 201214 yr Just had to do mine! The graupner speed 500 e motor works a treat, good find meldrew. The supplier sent mine accross the channel in 2 days. My old motor failed because water had got in wich in turn had corroded the armature and it's array of gobbins. As the rear of the motor is sealed by the rubber boot (of a fashion, water can still get in) I guess water had either got in via the motor mount screws, the forward shaft bearing housing (which does have an o ring seal ) or tracking directly down the wires to the motor. To help cure this when I mounted the motor into the housing I put a 0.5mm rubber gasket between the motor and casing. I also disassembled the fan wire connector and sealed the terminals / wire with adhesive coated shrink sleeve. Finally I drilled a 1/8th hole on the bottom of the ally motor mount that the rubber boot sits on, where the hole was I cut away a small piece of the rubber boot then reapplied a small piece of rubber over te hole effectively making it a one way valve so water can get out but cannot get in. Sorry I don't have any pics so I hope the description is clear enough to visualise. Cheers meldrew Edited January 25, 201214 yr by tankygsy
March 26, 201214 yr Girlfriend's 06 Gas Gas 280 fan isn't working (which resulted in milky oil, here we go again). I really don't know much about the electrical system on these things but so far I've eliminated: bad connection (tested and bypassed) dead motor (spins up both ways when connected to a battery) bad thermostat (works) Could be that the DC Converter/Rectifier is bad and not putting out enough juice (although some)? How would I test further and what else could the problem be? Reading below, I need to make sure that 12vAC is even getting to the rectifier, also pull off the flywheel to see nothing's funky in there....and then? Don't want to buy a new rectifier blindly... I found this for reference: http://www.trialspartsusa.com/diagrams/KokusanDigital2005Pro.jpg http://www.trialscentral.com/forums/topic/32530-gas-gas-fan-problem-help-needed/ http://www.trialscentral.com/forums/topic/16442-burnt-up-fan-relay/ Also, what besides water pump would go out to let coolant into the case? thanks, SZ Edited March 26, 201214 yr by stonezone
April 9, 201214 yr Anyone know if these motors fit a 97 JTX, my fan appears to be a one piece and has no rubber boot
April 9, 201214 yr Looking at the parts book for a jtx you can get fan blade, motor and cowling all separately so you should be able to strip down and fit an aftermarket motor.
April 9, 201214 yr Yeh the motor and blade are separate from the housing but the motor housing has 3 mounting points which are part of the motor and the motor looks to me like a sealed unit so I can't see me being able to replace just the motor, I'll ring GG UK to see how much a new one is tomorrow.
September 18, 201213 yr Just ordered mine cos at the mine mine is pulling 6amp and going a bit slow. Wish me luck
September 18, 201213 yr It's fairly easy to do, just a couple of things to remember: on assembly you only get one attempt at fitting the fan blade, it's a press fit and once it's on to get it off you have to destroy the motor - so make sure it's fitted properly and that you have INSTALLED the oring which is fitted between the motor and the motor casing. This oring stop water entering the front of the motor. Every so often I give the motor a squirt of wd, this helps to remove any moisture that accumulates in the windings.
September 19, 201213 yr Well my suspicions were confirmed today about my fan drawing too much power and running slow.... On a brighter side of things though so far so good... Only problem ive encountered (well not a problem as such but) is instead of knocking the bottom out of the motor it actually stripped the 2 little screws insted! Which is no great biggy dont get me wrong just a pain trying to find 2 that small lol. I even lifted the 2 metal tabs that secure the motor backplate too but it still knocked the screws out! Oh well should be here tomorrow.... Mission on!
September 20, 201213 yr Mission successful all fitted and working!! Big thanks Bigfoot for the how2 And of course vmeldrew for the find. Edited September 20, 201213 yr by tazz229
October 1, 201213 yr Yep, cheers for that how to, have just replaced my fan motor with the Graupner Speed 500E, from the online shop of Cornwall Model Boats (quick and helpful), pretty easy and straight forwards to do and only £11.76 inc p&p as opposed to £85 odd for an OEM fan assy!
February 18, 201313 yr hello. does anybody know anywhere i can get one of thes motors. i have tried cornwall model boats and two other model boat shops but they are out of stock and they wont be getting any in till may. thanks.
February 18, 201313 yr http://www.ebay.co.u...ner Speed&rt=nc i have looked on ebay. none of them seem to be the 12v 500e.
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