Recent content by lumpymags

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    Exmark 22.5hp blowing white

    To finish off this thread a lot of great info you all gave me thank you. I think I put a period there. It was the rings and I figured just do the rebuild machine shop was nuts on head surfacing so I did do the 80 grit 150 to 600 grit paper on block and heads first start no smoke and purrs like a...
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    Exmark 22.5hp blowing white

    Breather is functioning good and very clean after when I pull the pistons out the rings in the lower cylinder were not spaced 120 degrees there ring end gaps were about an 1/8inch apart pretty sure Well hell I thought it was lawn mower forum not English class
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    Exmark 22.5hp blowing white

    Breather is functioning good and very clean after when I pull the pistons out the rings in the lower cylinder were not spaced 120 degrees there ring end gaps were about an 1/8inch apart pretty sure it is the problem but having it tore down I figured just rebuild with new
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    Exmark 22.5hp blowing white

    I wanted to update everyone on this problem I took the engine out last night and tore it down today this mower is a 2017 model with 218 hours once I pulled the pistons cylinders 2 I think the lower one anyways the compression ring end gaps were maybe an 1/8th of an inch apart so ordered complete...
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    Exmark 22.5hp blowing white

    After some talk with my friend i think I left out a big part when the dipstick is removed it will shoot oil out for a distance so I do believe and agree with my friend that the rings are somewhat compromised I will be removing and disassembling again and will inform the forum
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    Exmark 22.5hp blowing white

    Leak down test 6 to 7 percent on both cylinders and that me trying to hold and plug in at 100 psi
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    Exmark 22.5hp blowing white

    This would be the first trouble I have had using them I use the thinner and move it back and forth with little pressure until clean
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    Exmark 22.5hp blowing white

    I do the 3 phase torque on heads as you say quick and why not I do not do sanding I guess I should try that from now on I do know the guys at the machine shop very well never ranyo this just did a compression test and I am at 112 and 110 but my tester i have little faith in I have to grab my...
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    Exmark 22.5hp blowing white

    All were done to spec I always use scotch Brite pads remove everything and brand new gaskets I never reuse and I torqued to the exmark spec I just ran it for 40 minutes sounds good but smoke it would clear up the hit again and I burnt from full to fill level I am going to do another leak dow...
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    Exmark 22.5hp blowing white

    Severe amount of white smoke problem is this winter I rebuilt it split sump everything looked great new head gaskets and the valves were lapped to remove little pitting today I put the engine back on and it is still smoking like last year I have checked the read valve seems to be working as it...
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