bignos Posted April 8, 2010 Share Posted April 8, 2010 can anyone help me?? my last flight was early October last year, i was buzzing around and i started noticing a power loss, it was small but seemed to be getting worse, i managed to limp back to base and when i landed i noticed metal filings on the cylinder head, i traced these to a damaged magneto which i have now replaced. I went to fly today after fitting it (im 100% sure the wires are correct) and the motor turns over and tries to fire but doesn't, it did backfire once or twice. there is pressure from the exhaust, fuel in the cylinder and a spark at the plug - im confused?? is it because its been standing so long or something i have done? is it related to the power loss last flight? any help would be appreciated bloody thing, its great out there today as well!! Quote Link to comment Share on other sites More sharing options...
pete_b Posted April 8, 2010 Share Posted April 8, 2010 can anyone help me??my last flight was early October last year, i was buzzing around and i started noticing a power loss, it was small but seemed to be getting worse, i managed to limp back to base and when i landed i noticed metal filings on the cylinder head, i traced these to a damaged magneto which i have now replaced. I went to fly today after fitting it (im 100% sure the wires are correct) and the motor turns over and tries to fire but doesn't, it did backfire once or twice. there is pressure from the exhaust, fuel in the cylinder and a spark at the plug - im confused?? is it because its been standing so long or something i have done? is it related to the power loss last flight? any help would be appreciated bloody thing, its great out there today as well!! Is the ignition timing right ?? Quote Link to comment Share on other sites More sharing options...
bignos Posted April 9, 2010 Author Share Posted April 9, 2010 i thought that, its not adjustable is it? fixed position stator and electronic ignition, hmmm Quote Link to comment Share on other sites More sharing options...
bendmeroundthehedge Posted April 9, 2010 Share Posted April 9, 2010 Hi, I am not familiar with this engine but you really need to find the cause of the stator being chewed up i.e. filings on the engine. Maybe the engine bearing and/or the oil seal failing? Kev Quote Link to comment Share on other sites More sharing options...
bignos Posted April 9, 2010 Author Share Posted April 9, 2010 the stator was broken after a prop strike, this was unkown at the time and started to disintegrate as bits of the magnet ground away at it. this has all now been rectified, i think its a timing issue, but have no way of adjusting it... Quote Link to comment Share on other sites More sharing options...
Phil_P Posted April 11, 2010 Share Posted April 11, 2010 Although you can't alter the timing, is it possible to move the ignition trigger head closer/further away from the rotor (assuming it uses this sort of system)? With the wear and tear yours has experienced, could the trigger have been knocked further away from the rotor? Fag paper thickness gaps are not uncommon. HTH, Phil. Quote Link to comment Share on other sites More sharing options...
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