momin Posted April 3, 2005 Share Posted April 3, 2005 Hi, ok i was running my enigine in at the york bash. the car staled and when i went to pull the starter again it was all rock solid, i thought i was flloded so i took glow plug out and i couldnt pull it. It is currently rock solid. when i turn the crankshaft nothing moves. anyone got any suggestions? thanks momin Quote Link to comment Share on other sites More sharing options...
momin Posted April 3, 2005 Author Share Posted April 3, 2005 pics http://img.photobucket.com/albums/v515/momin/DSC00333.jpg Quote Link to comment Share on other sites More sharing options...
momin Posted April 3, 2005 Author Share Posted April 3, 2005 Anypne got any suggestion? Quote Link to comment Share on other sites More sharing options...
Delboy Posted April 3, 2005 Share Posted April 3, 2005 Not a nitro pro so bare with me If i had the problem what i would do would be: .Take the backplate off to check that the one-way bearing spins freely and hasn't jammed .Check inside the crankcase for anything out of the ordinary .Remove the heatsink and see if you're able to tap the piston down (depends which stroke it is on) whilst turning the engine over .Contact HPI about the problem, an engine so new shouldn't be giving you grief so soon Quote Link to comment Share on other sites More sharing options...
philipalli Posted April 3, 2005 Share Posted April 3, 2005 oil might help or slamin it against a wall replacing your pully Quote Link to comment Share on other sites More sharing options...
Delboy Posted April 3, 2005 Share Posted April 3, 2005 Just re-read your post, can you turn the crankshaft over but the piston doesn't move? or pull the pull-starter but again the piston doesn't move? if so it definately sounds like the one-way bearing has broken in some way. Quote Link to comment Share on other sites More sharing options...
Colt Posted April 3, 2005 Share Posted April 3, 2005 get a hairdryer on it Quote Link to comment Share on other sites More sharing options...
danb Posted April 3, 2005 Share Posted April 3, 2005 is yor piston stuck at the top dead in the center, if it is stik something on the top thru the cylinder head an tap it. Quote Link to comment Share on other sites More sharing options...
momin Posted April 3, 2005 Author Share Posted April 3, 2005 Well, the piston dosent move at all and it is at the bottom. i cant even pull the starter. Quote Link to comment Share on other sites More sharing options...
danb Posted April 3, 2005 Share Posted April 3, 2005 again do the same thing, put sumthin thru an try 2 shift the piston, i hav only ever heard of this happening once before and that was yesterday, an he did this an it worked, just be careful Quote Link to comment Share on other sites More sharing options...
Samari Posted April 3, 2005 Share Posted April 3, 2005 Sounds like the engine has seized. If I where you I would take it too your LHS and just let them sort it out because it can get a bit complicated if you havn't had much experience taking apart and rebuiliding engines. Quote Link to comment Share on other sites More sharing options...
J C Posted April 3, 2005 Share Posted April 3, 2005 If its stuck at the bottom its seized. Probs a knackered bearing or something got in through the air filter. Probs best to see what LHS thinks Quote Link to comment Share on other sites More sharing options...
300ZXZ31 Posted April 4, 2005 Share Posted April 4, 2005 if the crankshaft moves freely but the piston doesnt turn tighten the flywheel nut also check the one way bearing and crank bearings. Quote Link to comment Share on other sites More sharing options...
momin Posted April 4, 2005 Author Share Posted April 4, 2005 thanks you guys you really cambed me down! I will take it apart and tyr moving the piston. if not i will take it to my LHS and see what he can do. Quote Link to comment Share on other sites More sharing options...
Colt Posted April 4, 2005 Share Posted April 4, 2005 Well, the piston dosent move at all and it is at the bottom. i cant even pull the starter. ← just try it with a hairdryer Quote Link to comment Share on other sites More sharing options...
stupar Posted April 4, 2005 Share Posted April 4, 2005 Sounds like a cracked internal bearing. This happened to me on an old force .15 engine I had. Apparently the bearing had split and jammed the crankshaft. Can be fixed but requires a complete strip down. You need to know what your doing when stripping and re-assembling a nitro engine though! Quote Link to comment Share on other sites More sharing options...
300ZXZ31 Posted April 4, 2005 Share Posted April 4, 2005 taking the engine apart isnt that hard just make sure you put the crankshaft in first and not the piston and sleeve like i did when i was a noob. Quote Link to comment Share on other sites More sharing options...
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