D3MON
Hardcore RCTalk User
Recently i acquired some Duratrax Nitro Evader BX's off a fellow forum member (if that member wants please feel free to say!) that needed a bit of work.
i had been trying to get my fiance' to run my other nitro rigs, but i couldn't get her to run them with her fear of burning up the engines, or wrecking them. saw these and her first thought was a His & Hers RC buggy because they are about exactly the same, so with these she is willing to run a nitro with me.
she is also pretty new to the RC world and still needing some guidance, so started last night doing a tear down to disassemble and clean them both, i tore down one as she mirrored what i was doing tearing down the other.
sadly forgot to take pictures along the way for the most part.
flushed and cleaned out both tanks, both were pretty clean and free of residue to begin with, but doesn't hurt to do it anyways. Tested the electronics, receivers are 75MHZ crystal type, and only had 27MHZ crystals, so to test had to swap out receivers off other rigs, planned on getting some 2.4GHZ here soon for them. all servos seemed to work correctly. cleaned the chassis on both, again both were pretty clean but doing a once over with some cleaning rags and soap and water to get that extra bit. engines were both seized tore them apart cleaned with some alcohol, and a old fuel to get them freed up and scrubbed the outside crankcase and heatsink with some soapy water and got them as clean as possible. carbs were both pretty seized, so soaked those as well after removing all the needles, and gaskets/O-rings, and throttle lever assembly, was able to get them both freed up and working smoothly.
one of the engines has pretty weak compression and the other feels like it has really good compression. pull starts all worked as they should, OWB did not seem to slip after cleaning them up. and the clutchbell bearings all rolled amazingly smooth.
on to the transmission, one of the spurs was missing a tooth in two spots, and the other, the brake disk and disk hub assembly were rounded off (these are similar to the RC10gt where it needs an adapter to fit the disk to the hub) knowing the one had damaged spur, i just installed the non broken spur on the one with the non broken disk assembly. (ordered some parts tonight to complete the one that was the donor).
the diffs worked quite smoothly so didnt tear into them completely yet, going to soon though.
shocks that i could tell were not leaking any fluid but to be safe drained and rebuilt them.
tires were pretty bald, the buggies came had an extra set of new pro-line tires, so for now i have ripped off the worst tires from the wheels and for now just have the new tires sitting on the wheels un-glued, (have some new wheels coming in for that one) the other, i ordered a set of ST tires and wheels for as I'm converting one to a stadium truck, (kinda helped that the only spur i could find was for a ST) and ordered some new front wheels, (need to find a set of front tires for an ST now).
was able to run the one with weaker compression, seems to run pretty well though, needles are all out of wack so it kept dying on my, but would start after just a few pulls.
was able to get some video, will try to upload later.
as far as engineering of these, i hate how the pull start is directly under the exhaust header, so when pulling you have to pull at a weird angle to not start dislodging the coupler between the pipe and header.
well thats it for now, having alot of fun teaching the lady as i go on these, and just having a blast getting these back to working. parts should be in on the 1st-4th so should be able to have them both running soon!
will update as progress takes place!
i had been trying to get my fiance' to run my other nitro rigs, but i couldn't get her to run them with her fear of burning up the engines, or wrecking them. saw these and her first thought was a His & Hers RC buggy because they are about exactly the same, so with these she is willing to run a nitro with me.
she is also pretty new to the RC world and still needing some guidance, so started last night doing a tear down to disassemble and clean them both, i tore down one as she mirrored what i was doing tearing down the other.
sadly forgot to take pictures along the way for the most part.
flushed and cleaned out both tanks, both were pretty clean and free of residue to begin with, but doesn't hurt to do it anyways. Tested the electronics, receivers are 75MHZ crystal type, and only had 27MHZ crystals, so to test had to swap out receivers off other rigs, planned on getting some 2.4GHZ here soon for them. all servos seemed to work correctly. cleaned the chassis on both, again both were pretty clean but doing a once over with some cleaning rags and soap and water to get that extra bit. engines were both seized tore them apart cleaned with some alcohol, and a old fuel to get them freed up and scrubbed the outside crankcase and heatsink with some soapy water and got them as clean as possible. carbs were both pretty seized, so soaked those as well after removing all the needles, and gaskets/O-rings, and throttle lever assembly, was able to get them both freed up and working smoothly.
one of the engines has pretty weak compression and the other feels like it has really good compression. pull starts all worked as they should, OWB did not seem to slip after cleaning them up. and the clutchbell bearings all rolled amazingly smooth.
on to the transmission, one of the spurs was missing a tooth in two spots, and the other, the brake disk and disk hub assembly were rounded off (these are similar to the RC10gt where it needs an adapter to fit the disk to the hub) knowing the one had damaged spur, i just installed the non broken spur on the one with the non broken disk assembly. (ordered some parts tonight to complete the one that was the donor).
the diffs worked quite smoothly so didnt tear into them completely yet, going to soon though.
shocks that i could tell were not leaking any fluid but to be safe drained and rebuilt them.
tires were pretty bald, the buggies came had an extra set of new pro-line tires, so for now i have ripped off the worst tires from the wheels and for now just have the new tires sitting on the wheels un-glued, (have some new wheels coming in for that one) the other, i ordered a set of ST tires and wheels for as I'm converting one to a stadium truck, (kinda helped that the only spur i could find was for a ST) and ordered some new front wheels, (need to find a set of front tires for an ST now).
was able to run the one with weaker compression, seems to run pretty well though, needles are all out of wack so it kept dying on my, but would start after just a few pulls.
was able to get some video, will try to upload later.
as far as engineering of these, i hate how the pull start is directly under the exhaust header, so when pulling you have to pull at a weird angle to not start dislodging the coupler between the pipe and header.
well thats it for now, having alot of fun teaching the lady as i go on these, and just having a blast getting these back to working. parts should be in on the 1st-4th so should be able to have them both running soon!
will update as progress takes place!