j_blaze
Posts: 1507
Joined: 1/4/2007
From: Tampa,
FL, USA
Status: offline
|
quote:
Thanks j blaze i did hear air coming from the front bearing is there anything i can do to fix it. brian
depends, if its leaking through the bearing, its toast. if its leaking from between the case or shaft you can put a very small amount of silicone in between there and hope and prey. i was lucky, mine was leaking in between the shaft and bearing. i used a tooth pick and dabbed some rtv on the inside of the bearing and a bit in the opening of the case. let it set overnight and ran it the next day, flawless for the last gallon or so. it can be done.
How to get the bearing out is probably your next question. take a clean paper towel and completely disassemble the engine (if you are comfortable with that, new bearing or not its gotta get done) , you should end up with the carb and screw holder piece, head, piston, sleeve and backplate. don't forget the oring inside the case in the carb opening. just use a very small screwdriver, like for glasses, and wedge it out of its groove. once you are down to case and 2 bearings, check for any other parts that i may have missed on this list. turn oven on to 250 degrees and set the engine inside for 10 minutes. when the timer goes off, holding the engine over a bowl of water tap the front bearing from the back with a large screw driver, it won't take much, few taps should get it out. be careful to tap the metal part of the bearing and not the rubber seal. once the bearing is out, put it in the freezer (with an ice cube on top) and get out the rtv silicone and tooth pic. dab a hairline bead of rtv in the inside corner of the bearing "notch" in the front of the case careful not to get any in the transfer hole on the top left of the opening. once thats done, get out the bearing and put a small bead of rtv on the inside hole of the bearing. barely enough to see it. the bearing should be ice cold and the engine very hot right now. take the case out and pop the bearing back in. then quickly insert the shaft again , let it all air cool now. after about a half hour reassemble the engine and prey some more. try it out and hopefuly it works. thats what i did and so far so good. warm up race next week and then state race in 2 weeks, can't wait.
GOOD LUCK. its hard to find sts parts i hear, but i'm pretty sure its a standard size bearing.
_____________________________
CASTER K8T Pro - GO 21 R-Spec/RB WS7III, JR, DX3R
Caster Zx1-R (soon) - ????
|
Printable Version
All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> RE: STS Engines 
RE: STS Engines - 
