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Model Forum / Radio Controlled / Land Models / May 2006Pinch tools for cylinder sleeves
Fellas, Anyone ever tried one? Do they work? How hard is it to booger up the sleeve by overpinching? The S-25 in the Sav is bound to go by the end of this season. It has 10 gallons on it now and still runs like new, but after this summer it'll have 15 or so gallons on it and something has got to give! I'm gunna run it till it grenades (trying to set a new record here!!). Doc > Fellas, > [quoted text clipped - 7 lines] > > Doc Sounds like a lot of effort to avoid the excuse of sticking a big engine in it really :-)  SignatureDan >> Fellas, >> [quoted text clipped - 10 lines] > Sounds like a lot of effort to avoid the excuse of sticking a big engine > in it really :-) Oh, she's getting a big'un when the S-25 wears out, but I'd like to pinch the S-25 and have it as a backup and/or sell it cheap. Doc >>> Fellas, >>> [quoted text clipped - 15 lines] > > Doc If it's still serviceable then you haven't leaned it off far enough to compensate for the fact it's losing performance due to been knackered ;-) SignatureDan >>>> Fellas, >>>> [quoted text clipped - 18 lines] > If it's still serviceable then you haven't leaned it off far enough to > compensate for the fact it's losing performance due to been knackered ;-) Ahh, the ol' "lean it to compensate for loss of pinch till it pukes it's little guts all over the place" trick! I've never blown a motor <yet> and don't plan to anytime soon. She has all the grunt she did when new. I'm running 16/49 gearing with Bonz on all 4 corners and the HPI polished pipe and she still overcomes the wheelie bar and flips herself over if I'm too aggressive with the throttle trigger! If I throttle it right I can wheelie into 3rd gear. I might go 17/49 and see if I can still wheelie with that gearing as well. The Bonz are smaller than the stockers and I lost some top end when I switched tires, hence the switch from 15T to 16T on the clutchbell. Some people knock wheelies and say they are a detriment to performance. BAH! Hogwash! If I want performance, I'll fire up the Mayhem ST or the Kanai 3; if I want to beat the living piss out of something and pull 35mph wheelies I'll fire up the Savage! My Savage has earned the nickname "wheelie machine" amongst my buds due to it's ability to pop em' on demand. My one bud is getting kind of tired of me sneaking up behind his Rustler, popping a wheelie and landing the front wheels on his roof. I then proceed to drive over it which irritates him further. Hell, if you wanna play with the big boys, get a bigger toy! Doc >>>>> Fellas, >>>>> [quoted text clipped - 41 lines] > > Doc Hey Doc, re nitro fuel. When do you consider it "bad". When I say that I mean shelf life. I think some of the problems I've been having lately is due to bad fuel and I haven't had a chance to get some new stuff to test. Would bad/old/stale fuel stop my engines from revving to what they are supposed to?? (rpm wise) I fired up the old Kanai the other week and when I last drove it (12 months ago) it went like stink, however now it runs like a bucket (and I have messed with the tune). I know this is a how long is a piece of string type of question :) Cheers Dre > Hey Doc, re nitro fuel. When do you consider it "bad". When I say that I > mean shelf life. I think some of the problems I've been having lately is [quoted text clipped - 10 lines] > > Cheers Dre To be perfectly honest I don't know man! My fuel never sits for more than a month or so <gallons> before it's all used up. Bad fuel could cause all sorts of problems though. Pretty much the only difference between old and new fuel would be water content, as improperly sealed containers would allow the alcohol to soak up atmospheric moisture. Water in the fuel would screw with things pretty bad. I have read that if stored properly (closed tight in a cool, dark location) it's good for years. I once had a gallon of fuel pop it's lid off d/t expansion while being stored in my hot, humid garage. It was open for around 2 days before I saw it. FWIW, the fuel was still fine after being open to the humidity for all that time. Did you burn all the fuel out of the engine and use after-run oil in the Kanai before you stored it? Maybe the carb and innards are all gummed up with castor resin if she wasn't prepped properly. Also, have you tried a new glow plug? Doc >> Hey Doc, re nitro fuel. When do you consider it "bad". When I say that >> I mean shelf life. I think some of the problems I've been having lately [quoted text clipped - 30 lines] > > Doc Ok, well the fuel was stored in the dark and cold. Yes the engine was a little gummed up, but I fixed that by takeing that carb/back plate and head off, freed it all up, and she was all good again. The problem being the revs. Its not just that motor, then one in the Sav and the one in the MP6 (a Hyper 7). What I didn't try though (cause I didn't have any spares with me) was another plug. It just weirded me out cause it happens to all 3 engines. I might try some new fuel anyway, I've been meaning to try something other than what the LHS sells, some brand name fuel and see what the difference is... Thanks for the info anyways! Cheers Dre |
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