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drummerjamesh

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I've had my savage for about 2 weeks and about a gallon through it....can you really only expect to get about 4 to 5 gallons out of a engine:jet: :whack: ..i just run it around the back yard...also today it wouldnt turn good so i killed it, lifted the front and whenever i turn the servo clicks??:shrug: need some help on these 2 topics all info will be appriciated

Thanks,
James
 
You may want to take the servo apart and look to see if you have stripped a gear. As far as the fuel goes I had five gallons through my .21bb before I got bored and replaced it with a picco but it still ran fine. Alot with engine life has to do with clean air and tuning. DO NOT run lean if you want it to last! Good luck James.

Pee Wee
 
like peewee said take the servo apart if your running the stock servo you might have boke the plastic gears .been there done that:yes:
 
you can always rebuild your engine if you want to when it starts crappin out instead of buyin a new engine
 
I have over 5 gallons and still running strong. I just keep the motor pretty rich with a good smoke trail. Matt
 
Stripped plastic gears on the servo. replace it and you should be good to go, just remember to get a hi-torque servo.
 
SUp drummer,

TO answer your first questions. It's all relative when it comes tooverall engine longevity and especially piston/sleeve and conrod. Generally your conrod will outlast your piston and sleeve but that's not necessarly going to be the case with every engine on the planet. Running your engine richer may cause it to last somewhat longer but your killing your perfromance if your running really rich. Their isn't a specific rule of thumb with engines but I always say 2-3 gallons more then 4to 5...lol THis is the reality of nitro engines often. If you engine is properly tuned for all the weather conditions your running it in then I'd check the piston and sleeve wear after two gallons...if your not compotent to do so then have an honest LHS check it out (honest and COmpotent LHS is often an oxymoron for many). Even if your engine is still running after 4-5+ gallons you may be losing serious compression which will affect overall power and performance. It's nice to get a compression gauge to make sure you have proper compression. I don't have much long term experience with what I'm assuming is a HPI .25 Nitro star that your running.
 
well i am james' monkey wrench, as it turns out the servo's gears were pretty much chewed to death, one was shattered, I'm really suppriced it workd at all, but now hes in the market for a good one with metal gears. i was thinking the hitec 645 but my lhs said to try the new XTM high torque... opinions?
 
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