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Old 11-05-2006, 12:33 PM   #16
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Originally Posted by doki_doki
well, with my experience with os engines, they are very durable. with the right break-in method and tuning you can let these motors run up to about 60 liters without changing anything except for the glow plug i know someone who ran the ostz 5ports up to more than 60 liters until the engine finally broke down. the piston was broken. we also noticed that there was a noticeable play between the conrod and crankshaft pin... and we quessed that caused the failure...
How long is the straight at this track?
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Old 11-05-2006, 06:26 PM   #17
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Originally Posted by Ed Anderson
Unfortunately the US importer says "they are either invalid or discontinued part numbers". Your numbers are probably right, they just don't have their act together. (they used to do the same thing with Kyosho) Seems to be the standard answer if they don't stock something.
I have been told by one of our LHS that you are not able to by a piston and liner for this engine. Single use only. How true it is i dont know but that is what i have been told!
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Old 11-05-2006, 07:36 PM   #18
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just got mine when i went over to HK few days ago. haha. havent try. but it is from OS Speed.
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Old 11-05-2006, 07:46 PM   #19
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Quote:
Originally Posted by Slo-MTX4
I have been told by one of our LHS that you are not able to by a piston and liner for this engine. Single use only. How true it is i dont know but that is what i have been told!

this is not true. there was a printing issue/mistake with the translation of the instruction manual from japanese to english. a friend asked the OS speed people about this and they were suprised and embarrased. there is a part number for it, it is on one of the OS threads
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Old 11-05-2006, 08:51 PM   #20
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Originally Posted by Slo-MTX4
I have been told by one of our LHS that you are not able to by a piston and liner for this engine. Single use only. How true it is i dont know but that is what i have been told!

Its possible, but GP is known to say things like that when they don't want to stock something. I myself have had to make the 4/5 hour phone call to them on more then one occasion to get them to order parts (both OS and Kyosho). You get a lot "why do need this" then 15 minutes on hold, then "whats this for", then another 15 minutes then "let me get a supervisor". It just repeats this till they finally say "OK we'll order it".
Be prepared, it'll take a few hours.
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Old 12-01-2006, 06:25 PM   #21
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I just want one of the cranks. If anyone finds out where to get the parts please post it here. Thanks
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Old 12-01-2006, 07:22 PM   #22
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+2 more. Anyone know where to get these??
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Old 12-01-2006, 07:34 PM   #23
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hmm, i dun understand y those online RC shops in HK dun sell these parts. but i got them from HK hobby shops that do not have online sales. i also saw the crankshaft for sale too. its priced slightly more expensive than the piston/linear.
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Old 12-03-2006, 08:01 PM   #24
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Originally Posted by uniquexme
hmm, i dun understand y those online RC shops in HK dun sell these parts. but i got them from HK hobby shops that do not have online sales. i also saw the crankshaft for sale too. its priced slightly more expensive than the piston/linear.
Did the crank you saw have the small weight added into the counterweight? They also have a big tear drop cut into the counterweight. Bigger then the other cranks do.

Last edited by THE DOCTOR; 12-04-2006 at 05:07 AM.
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Old 12-22-2006, 06:02 AM   #25
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how much was the piston/liner set in Hong Kong?

Last edited by nitro_moe; 12-22-2006 at 06:17 AM.
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Old 12-22-2006, 06:57 AM   #26
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Try Pro-Shop-Futaba i know they stock the engine, not sure about the parts though but if anyone would have it they would.
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Old 12-22-2006, 05:20 PM   #27
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yes, its exactly the same as stock crankshaft. rite now, i still have the piston/linear set with me, new, haven't opened, so if anyone wants it urgently, do let me know, i can sell to you 1st, while i get it on my next trip to HK. btw, i m in malaysia.
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Old 12-23-2006, 08:37 AM   #28
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Any way you can show a decent picture, including the part number? The US importer still insists "its an invalid number" They'll wind up lossing OS like they did Kyosho.
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Old 12-23-2006, 07:38 PM   #29
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well, ok, i shall take a photo of it. like most option parts, it comes with clear plastic packing.
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Old 12-23-2006, 08:15 PM   #30
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Thanks I would like to see the crank and the part number.
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