Engine stalls when jumping

[Dandare]

One particular jump on our local club track last night resulted in repetitive stalling, not too sure if it stalls mid air or on the landing.

I've had suggested that something may have stopped the flywheel upon landing but i currently have the hole taped up due to using a pullstart & the track being very dusty etc & the tape is still intact. I guess it must be something to do with the landing rather than mid air but it's a mystery as to why ?

I replaced the clutch shoes/springs between the 1st & 2nd round but it still kept stalling, could it be a tuning/lsn setting issue ? I've made sure the idle is set so when braking the revs don't drop etc etc, i'm at a bit of a loss...

Car is a TT EB4-s2 1:8 buggy, standard .21 engine etc.

[reg]

Hi,first off change ya glow plug,if it doesnt do the trick it sounds like it might be the clutch or engine bearings,when you say you have taped the hole up,do you mean the one the fly wheel shows through the chassis,if so take it off,covering it will stop any little stones falling out as they will get stuck in there,you shouldnt cover it up,they are ok running in dust and dirt,make sure there isnt a little stone stuck between the fly wheel and the engine case,
there is a few things to try

[Dandare]

hi, i did replace the glow plug to no effect. I take your point regarding small stones, i just figured covering it up would more likely stop them getting in in the first place more so than stopping them escaping.

Would there be a way to check engine bearing problems ? I must have run approx 70+ tanks through it by now...

[reg]

Originally Posted by Dandare

hi, i did replace the glow plug to no effect. I take your point regarding small stones, i just figured covering it up would more likely stop them getting in in the first place more so than stopping them escaping.

Would there be a way to check engine bearing problems ? I must have run approx 70+ tanks through it by now...

The stones will get in places you cant cover up,70 tanks isnt realy alot but they dont last for ever,plus you say you are running a pull start,that will let dust into the rear bearing,you could try taking the pull start off and borrowing a starterbox,sometimes the one way in that locks up if its dry,i cant help with how to test apart from look for play in the crank shaft,

[reg]

also try doing a few laps to get the engine up to temp,then bring it back to the start,let it idle for 10 seconds then floor it,see if it stops or pulls off,

[Dandare]

Ok, thanks for your help.

Regards to the pullstart, i keep thinking of changing to a box but i've never had any trouble using the pull so i've kinda stuck with it. I see others at the club sometimes having trouble starting even with a box, lol. Maybe i'll change for economics (i am on my 3rd pullstart) reducing load on the engine & what you've said regarding the bearings/one way bearing.

[lewis666]

hi dan,

it is lewis cocksedge here i dont know if u know me but i was running last night as well using the white durango? i work out of the green van? anyway what is your airfilter like? i found that because of the dust airfilters where getting so clogged up they would start cutting because the engines could not breath.

another solution is did the car cut when u give the car throttle after the jump? if it was then the car could have been wheel spinning alot causing the engine to overheat and cut. my car usually does about 10 minutes or so on one tank but i only had about 7 minutes last night because of so much wheel spin.

i would not look at the car for the cause i would look at the track. it was stupidly dusty i didn't run the final because it will ruin the car. i heard someone say oh the tires will last longer. well i dont care how long the tires last but i do care how long my engine and car last because they cost a hell of alot more. i think since the change it is a poor track.

hope this helps

lewis