baja5bmad Posted October 6, 2016 Share Posted October 6, 2016 hi the fly wheel on my nitro buggy is stuck it is only new engine never started i put screwdriver under the flywheel it on turn for bit and lock again took glow plug out put bit wd 40 down it. i am also using starter box to try start it any help would be great. thank you. Quote Link to comment Share on other sites More sharing options...
evssv Posted October 6, 2016 Share Posted October 6, 2016 if brand new engine try heating head with hair dryer as it`ll b very tight.....or it may b sumin Inside...... Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 6, 2016 Author Share Posted October 6, 2016 will try that mate see how it goes cheers Quote Link to comment Share on other sites More sharing options...
Fly In My Soup Posted October 6, 2016 Share Posted October 6, 2016 5 hours ago, evssv said: if brand new engine try heating head with hair dryer as it`ll b very tight.....or it may b sumin Inside...... +1on this New engines that haven't been broken are tight, basically put, the piston has a lot of friction when it reaches top dead centre of the sleeve it sits in. This is commonly referred to as "pinch" This will reduce with time 1 Quote Link to comment Share on other sites More sharing options...
atom3624 Posted October 7, 2016 Share Posted October 7, 2016 Could help if you loosen the glow plug - reduces the compression. Check out the loads of videos Google can serve you with. Al. Quote Link to comment Share on other sites More sharing options...
locky Posted October 7, 2016 Share Posted October 7, 2016 Loosen glow plug and heat engine to 200F, some new engines are tighter than others. Repeated attempts to force it to turn over (especially with roto starts) with resistance can stress parts, which may let go later. Not used a starter box, so dont know how much force they apply. Not sure about using WD40, always use After Run Oil myself. A flooded engine will also not turn over, so this maybe your problem. Take glow plug out and turn car on side or upside down, turn engine over to expell fuel. Quote Link to comment Share on other sites More sharing options...
evssv Posted October 7, 2016 Share Posted October 7, 2016 On 06/10/2016 at 17:56, baja5bmad said: hi the fly wheel on my nitro buggy is stuck it is only new engine never started i put screwdriver under the flywheel it on turn for bit and lock again took glow plug out put bit wd 40 down it. i am also using starter box to try start it any help would be great. thank you. so any joy with it??? Quote Link to comment Share on other sites More sharing options...
Burridge Posted October 8, 2016 Share Posted October 8, 2016 If it's never been started then as said it'll be because of the pinch. Heat it up really good, if it doesn't budge get some gt85 down the cylinder, heat and try again. I had a CEN engine that was seized solid and I freed it up doing that and it runs great now. 1 Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 12, 2016 Author Share Posted October 12, 2016 On 07/10/2016 at 21:48, evssv said: so any joy with it??? Hi there i did not get it going yet. tried all day today. flywheel will only spin with glow plug out. i heated it up with hairdryer still no look Quote Link to comment Share on other sites More sharing options...
evssv Posted October 12, 2016 Share Posted October 12, 2016 (edited) So it'll turnover with plug out then?but not in....ok..put plug in for a few turns then try to turn engine over. ...u should hear air escaping around the plug Edited October 12, 2016 by evssv Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 12, 2016 Author Share Posted October 12, 2016 the flywheel will only turn very small bit with the plug in then lock again. thinnk my might take cylinder head of and grease piston. Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 12, 2016 Author Share Posted October 12, 2016 any ideas how to get the flywheel to spin it very tight. Quote Link to comment Share on other sites More sharing options...
locky Posted October 12, 2016 Share Posted October 12, 2016 you need to break it in, heat up, loosen plug and run it rich Quote Link to comment Share on other sites More sharing options...
evssv Posted October 12, 2016 Share Posted October 12, 2016 6 hours ago, baja5bmad said: the flywheel will only turn very small bit with the plug in then lock again. thinnk my might take cylinder head of and grease piston. don't do the plug all the way up....only a few turns in..... 1 Quote Link to comment Share on other sites More sharing options...
froggy8 Posted October 13, 2016 Share Posted October 13, 2016 when i tried my new engine few years back, it was that tight that i had to heat it up to 200f, it started in few seconds. i didnt use a hairdryer as that took too long so i used my engine heater and left it on for 10 mins. Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 13, 2016 Author Share Posted October 13, 2016 Hi there i will give another go later let you know how i get on. i dont have engine heater . Quote Link to comment Share on other sites More sharing options...
froggy8 Posted October 13, 2016 Share Posted October 13, 2016 they are cheap enough mate, i really do find that easier to use than hair dryer 1 Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 13, 2016 Author Share Posted October 13, 2016 30 minutes ago, froggy8 said: they are cheap enough mate, i really do find that easier to use than hair dryer yes i must have look out for one. cheers mate Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 13, 2016 Author Share Posted October 13, 2016 still wont start for me.. heated the engine very hot today with hairdryer. flywheel keeps locking gave up after 2 hours. so i took my baja5b out on my road and hit the neighbours dog. it is ok she was not happy. and me to Quote Link to comment Share on other sites More sharing options...
Sayce97 Posted October 15, 2016 Share Posted October 15, 2016 On 10/13/2016 at 16:34, baja5bmad said: still wont start for me.. heated the engine very hot today with hairdryer. flywheel keeps locking gave up after 2 hours. so i took my baja5b out on my road and hit the neighbours dog. it is ok she was not happy. and me to did it start but not keep running or not start at all? i dont usually loosen the glowplug for break in, but do so if you wish. Try upping the idle if it stops very quickly. It will keep locking until it loosens up, then you can aim for a lower idle. Quote Link to comment Share on other sites More sharing options...
baja5bmad Posted October 15, 2016 Author Share Posted October 15, 2016 Hi there it did not start at all... flywheel keeps on locking on me. only when i take glow plug out it seems to turn over Quote Link to comment Share on other sites More sharing options...
evssv Posted October 15, 2016 Share Posted October 15, 2016 so..we know the engine is ok inside or it wouldn't turn over with no plug in....ok...now its jus a case of heating and trying to get it to turn over......put the plug in only 2 full turns....surly it will turn over like this as the plug hole is not sealed..... 1 Quote Link to comment Share on other sites More sharing options...
Sayce97 Posted October 15, 2016 Share Posted October 15, 2016 Another thing you may want to look at is your starterbox, i have a 4s lipo in mine which is abit overkill but when i have 12v battery break in was more of a struggleSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Fly In My Soup Posted October 23, 2016 Share Posted October 23, 2016 On 15/10/2016 at 21:11, Sayce97 said: Another thing you may want to look at is your starterbox, i have a 4s lipo in mine which is abit overkill but when i have 12v battery break in was more of a struggle Sent from my iPhone using Tapatalk No need to use a starter box to break in, unless it obviously has no pull start fitted. I've broke in many engines, and owned hundreds of models, I've never once used an engine heater, theyre usually Chinese *****, a hairdryer is what you want, theirs no need to heat an engine to 200° simply to obtain ignition, if you have to do this then somethings wrong ( tuning, fouled plug etc etc) a gentle all round crankcase heat (5 mins tops with a hairdryer on full heat setting) My thoughts are same as essv, tighten glow plug, then back it off 1 full turn, gently heat all the engines crank case, not just the heatsink, then fire her up, leave her idling for 3 tanks, then half throttle runs for 3 more. If the flywheel is stuck, and it's not flooded, you may be experiencing vapour lock, which loosening the plug will help with. Also Remember as always ( apologies if I'm telling you how to suck eggs), fresh fuel, fully charged glow plug, heated crankcase and short sharp bursts of the pull start, once she gets going your away Quote Link to comment Share on other sites More sharing options...
Fly In My Soup Posted October 23, 2016 Share Posted October 23, 2016 On 13/10/2016 at 15:34, baja5bmad said: still wont start for me.. heated the engine very hot today with hairdryer. flywheel keeps locking gave up after 2 hours. so i took my baja5b out on my road and hit the neighbours dog. it is ok she was not happy. and me to P.s if you've been priming and yanking then re heating to extreme temps in an attempt to start, this will cause you vapour lock, a symptom you resolved when you removed the plug, as the gas escapes once plug is removed Quote Link to comment Share on other sites More sharing options...
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