Question about Honda 8 HP Engine

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I have a Honda GX240 that burns oil like crazy. Rings are perfect as are the valve guides..what's the problem?

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  • Stuart
    Stuart May 11, 2010

    HAs the engine been tipped at all? Check the air filter for signs of oil. Is it actulally burning the oil out of the sump, or just running smokey? Blue/grey smoke = not enough air getting through. Poss blocked filters, running on choke or spark arrester caked up with carbon. White smoke = burning oil. Poss tipped or overfilled.

  • jim gleason May 11, 2010

    check the breather tube from the valve cover for a clog or even more common, an oil soaked airfilter/

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One major problem is how much oil u put into it,
if you over full it ,
on the down stroke the oil will compress,
forcing the oil,between the rings,
causing it too burn.

Posted on Dec 03, 2009

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Replace rings and valve stem seal and valves pretty inexpensive you should be good afterwards

Posted on Mar 22, 2015

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If the engine gets turned on its side or the carburetor floods gas can get in the engine oil causing it to loose viscosity and get past the piston rings. This will result in a lot of white smoke. To fix it simply change the oil making sure to get all the old out.

Posted on Mar 19, 2015

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1 Answer

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Hi Leakey,
Sounds as though you still have a problem with the valve stem oil seals. Did you inspect the valve guides for wear? With a vehicle that's been around since 87, the valves have moved up and down a fair number of times and I think maybe the guides have become a little worn. As the bluish smoking happens only after start up I don't believe I'd suspect the rings, but to carry out a quick check, you can ask a friend to get in the vehicle, start up and take the RPM to around 2500 for about 20 to 30 seconds. During those seconds stand at the back of the car, watching for oil burn, then take it to about 3000 RPM and do the same. If you see oil burn then the oil scraper rings have worn, if not concentrate on the cylinder head.
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Can I get a “very helpful” rating on this answer?

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