Recent content by topgun129

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    push lawn mower not starting

    ok sounds good. i'll recheck with 1/4" past TDC and then if same result then i'll give the valve a very very light grind on the stem. thanks.
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    push lawn mower not starting

    i was planning to grind down the valve end like 1mm and then recheck if it creates the proper valve clearance. basically i have a clearance tool like in the attached image and took the thinnest one and i could insert it thru where the valve closes against the head (right next to the piston)...
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    push lawn mower not starting

    i removed the muffler and opened the valve area and noticed that at top dead center the intake valve has no clearance and due to that the valve is not shut completely. the exhaust valve is fine. i assume this is the issue why there is oil burn and no compression, hence the machine is not...
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    push lawn mower not starting

    would it help if i cleaned all the carbon (especially around the valve seats) and installed a new head gasket? or is it better to just get rid of the machine?
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    push lawn mower not starting

    i took the head off the engine and here are some photos. i pulled the cord several times and it seems the valves are opening and closing properly along with the piston going back and forth without issues. could it be the magneto is not providing enough spark? but i did hear a very very faint...
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    push lawn mower not starting

    ok so i checked everything over again. i used my spark plug tester and i do get spark. but the crazy thing is that if i spray starter fluid into the spark plug hole the machine still does not start or turn over. i did notice the machine has a cheap Chinese made armature. its not the original...
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    push lawn mower not starting

    will do. i did spray some into the muffler and heard a huge pop when pulling the cord.
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    push lawn mower not starting

    engine model - 120000 Hi All, I don't know much on the history of this engine but I inspected what I could and the flywheel key, magneto, air filter and spark plug are in good condition. I tested with a spark plug tester and I do get a spark. I did clean the carb and fuel tank and put in...
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    possible head gasket issue?

    yes actually i was thinking about using thicker oil. what do you recommend to use? 10w-30 synthetic? or something thicker?
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    possible head gasket issue?

    makes sense @bertsmobile1. any possible fix for this or maybe time to retire the machine?
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    possible head gasket issue?

    update - i ran the tractor for 1 hour without issues on mostly flat ground. but unfortunately the issue re-occured (oil burning), but noticed it occurs near the same area where it occurred before on my lawn. this area is on a slight decline where the engine is pointed downwards. could it be...
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    possible head gasket issue?

    @bertsmobile1 - i'll go ahead and change both the O ring and carb gasket. i assume you are referring to the blue and red arrows?
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    possible head gasket issue?

    @bertsmobile1 - just to confirm, you are suggesting the air filter housing is letting some dirt get thru which is causing this? just wondering what the best resolution is for this. since i opened up the area i cleaned the head area and will install a new gasket
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    possible head gasket issue?

    here are a few more photos if it helps
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    possible head gasket issue?

    so i opened up the head and here are some photos. i noticed the gasket is in ok shape. i dont see any break in it between the piston and galley where the push rods come thru. but i do see the piston head has a ton of carbon on it. the cylinder area itself is smooth. i looked at the oil dipstick...
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