Lawn Mower Smoking

devine86April 12, 2010

A friend of mine moved into a new home last week and does not own a lawn mower so I decided to be nice and do it for her. She has quite a large slope at the front of her property and near the end of mowing it my lawn mower began smoking white. I thought it was just over-heating since I was out there for quite a while.

I attempted to mow my lawn today but after 30 seconds the white smoke came back and there is a small amount of oil leaking from the engine. Any suggestions??

Briggs & Stratton

Murray Select Quantum 6.5 HP

Model # 222310X8A

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ggoyeneche

Could be one of two things:

Worst case, the slope cause old starvation and the engine began to seize due to lack of lubrication. Bad news, because engine is now probably shot.

Better option (and maybe more likely). Slope cause oil to run from crankcase breather into carburetor and you were burning oil. Muffler is now full of oil and will continue to smoke. May actually be less smoke at start up and then really begin to smoke as engine warms up.

Suggestion for either case: Check oil level. Make sure you are above "ADD" but do not increase all the way to "FULL". Check air filter element and see if it is saturated with oil. Replace if necessary (you can't clean a paper element); must be replaced.

Now start mower on level ground and continue to run at operating speed. If engine seizes after a few minutes, you had a worse case scenario and you need at least a new engine, and probably a new mower. If it clears up and quits smoking, and continues to run strong, you are OK and didn't do any long term damage.

    Bookmark   April 12, 2010 at 7:08PM
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1saxman

'Better option (and maybe more likely). Slope cause oil to run from crankcase breather into carburetor and you were burning oil. Muffler is now full of oil and will continue to smoke. May actually be less smoke at start up and then really begin to smoke as engine warms up.'

This is what happened.

'Suggestion for either case: Check oil level. Make sure you are above "ADD" but do not increase all the way to "FULL". Check air filter element and see if it is saturated with oil. Replace if necessary (you can't clean a paper element); must be replaced.'

Do this.

    Bookmark   April 12, 2010 at 7:53PM
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