anyone on the list know anything about the . . .
Craig, If you're getting spark to the plug, put a little gas in the cylinder through the plug hole, repalce the plug and try to start it. If it fires up, but quickly dies then you have a gas delivery problem, like Scott, Tod and others have mentioned. If it doesn't fire up I would suspect you have no or very poor compression. Reduced compression is usually cased by a ring problem (as in broken or frozen to the piston) or a stuck valve (as in stuck open). You can check for no compression by trying to plug the spark plug hole with your finger while pulling the starter. It will be obvious that's there no compression if your fingure is not pushed off the hole. Checking for poor compression requires a gauge. My guess is you would need 40 psi to run, but probably should have 80-90 psi to run well. I would hope that the repair shop would have done this simple test, but other than Harvey mentioning compression, I haven't heard any mention of it. I've been trying to nurse back to health a beautiful Troy Built roto tiller that someone neglected to store properly and it has poor compression (45-50 psi). I've been soaking the cylinder with Marvel Mystery Oil for two years now, to try to free up the rings. It runs, but not very well. I probably should just replace the enginge, for it has gas delivery issues as well, but I got the tiller for free and I'm being cheap. Anyway, not running an engine is the worst thing for it and most of these problems are caused by the way they are stored. Rick Langer M15 #337
Rick, All the things being said are true. Just a helpful hint from my friend who repairs small motors for a Living. He suggested that when I put them away , I put a small amount of transmission oil in the gas tank. Then I don't need to take them to him for 'service' in the spring. Gordon ----- Original Message ----- From: "Rick Langer" <farreach@optonline.net> To: <montgomery_boats@mailman.xmission.com> Sent: Tuesday, March 22, 2005 3:02 AM Subject: M_Boats: anyone on the list know anything about the . . .
Craig,
If you're getting spark to the plug, put a little gas in the cylinder through the plug hole, repalce the plug and try to start it. If it fires up, but quickly dies then you have a gas delivery problem, like Scott, Tod and others have mentioned. If it doesn't fire up I would suspect you have no or very poor compression. Reduced compression is usually cased by a ring problem (as in broken or frozen to the piston) or a stuck valve (as in stuck open). You can check for no compression by trying to plug the spark plug hole with your finger while pulling the starter. It will be obvious that's there no compression if your fingure is not pushed off the hole. Checking for poor compression requires a gauge. My guess is you would need 40 psi to run, but probably should have 80-90 psi to run well.
I would hope that the repair shop would have done this simple test, but other than Harvey mentioning compression, I haven't heard any mention of it.
I've been trying to nurse back to health a beautiful Troy Built roto tiller that someone neglected to store properly and it has poor compression (45-50 psi). I've been soaking the cylinder with Marvel Mystery Oil for two years now, to try to free up the rings. It runs, but not very well. I probably should just replace the enginge, for it has gas delivery issues as well, but I got the tiller for free and I'm being cheap. Anyway, not running an engine is the worst thing for it and most of these problems are caused by the way they are stored.
Rick Langer M15 #337
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Gordon Allgrove -
Rick Langer