CEN ATX / Sanwa Dash Sabre

[Karl]

My mom & dad have just bought me a 2nd hand nitro car. But after using it I came across a few problems.

When I break , the car cuts out fully . So I changed the idle screw so that the carburetor has a 1 - 1 1/2 mm hole in it when it's on full beak. But still no luck. So I changed the ratio of air / fuel going into the engine using the car was running more rich. Still no luck. ( Im using Trinity Mega-Horse power 20% fuel. )

It was the first time I used it on a mixture of soft short grass , smooth concrete path , 'pebble' carpark & wood chippings. (Jumps) And after 1/2 - 3/4 of a tank of fuel the 2staged gear box stripped. One gear is fine , but the main gear has clearley stripped all the teeth.

When I was using it I noticed that steering left was a real problem. It was very weak. So I picked the car up & turned left and the wheels go left but stick in that position and go click click click ............Someone did suggest that the steering servo was broke but the guy who I got it off said that It was only fitted last week

Does anyone know what could be wrong with the servo , and why this gear stripped so quickly? When I pick up a new gear tomorow should I take it easily & 'run it in' first?

Thanks
Karl

 

[rokitflite]

Hi Karl,
Try your clutch shoes. If they are in constant contact with the inside of the cluth bell this could cause it to die when you force it to come to a complete stop. Also, if it is an on-road car and you use it on a surface with poor traction (grass, pebbles etc) this will cause the gears to strip ESPECIALLY with a 2-speed tranny.

 

[Karl]

Well I've orderd a new supur gear & servo. I took a look inside the servo and on some of the cogs, teath have stripped :-( So a new servo should be here soon

Im using the car offroad & onroad , it's a cross between a stadium tuck & a buggy.

When I install the new gear , it means talking the whole a$$ part off! So I'll take a look at the clutch shoes.

Thank you
Karl

 

[Karl]

Right , *Finaly* My local hobby store got a new gear in to day. I fitted a new servo & gear . Brilliant. Then 10 mins into using it , the car goes and strips yet another brand new gear!! Now im going to have to wait another 1-2 weeks to get a replacement. Does anyone know why these are going so fast?
Thanks
Karl

 

[Austin]

Karl...

You are on the wrong forum for this subject; there are much better forums out there for you to get info.

Try https://www.rcgroups.com/forums/index.php?
or https://www.rcuniverse.com/

Carl