Lawnboy Cylinder Head Pics

weed_cutterAugust 10, 2014

Model 10324 with 2 stroke Duraforce engine. Head gasket was leaking. Engine ran fine, only symptoms were a little harder to start and I could hear a wheeze when pulling the starter rope. I rebuilt this engine about 6 years ago and estimate more than 250 hours on it since the rebuild. Fed a regular diet of pump gas and 32:1 Mobil One 2T until I switched to Castrol RS TTS about 2 years ago, also 1 oz of Seafoam/gal.

Is the cleanliness of head due to the engine's diet or the result of the gasket leak? Maybe this is normal but I was a little shocked.

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Here's a pic of the top of the piston.

    Bookmark   August 10, 2014 at 4:41PM
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Looks to me like you're doing it right, resulting in a clean-running engine. The plug does not look like it has been subjected to a lean mixture at all. You can credit the use of premium oil and the Seafoam for it.

    Bookmark   August 14, 2014 at 10:39PM
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