Stump grinder engine honda gx390

[ukminch]

Hoping to get chance to sort it at the weekend so ill report back in due course.

[fair1535]

For what its worth, I had an identical problem withe same engine fitted to my camon c150. See thread below this. My engine oil exactly the same, when started loads of white smoke, fresh oil and carb flush and runs like a dream.

[Prince arb]

If you leave your grinder leaning back with the handles on the ground oil goes up the breather pipe and hydraulic lock the piston! Should be right once you've Burt of the oil in the bore! Just clean the air filter check the oil and off you go!

 

 

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[ukminch]

Wow, has this really been 4 weeks ago.......... So I've managed to get the engine back together and went out to use it today, managed to snap the pull cord (nothing major) but now the engine is seeming to be hydro locked again, oil is clean this time, Im hoping something simple............

[Shane]

Maybe we should swap machines??? see my thread for my little disaster today.

 

Never mind, we'll all be up and running soon.

 

Good luck with it.

[ukminch]

Yer just seen that. My uncle lives in Worthing send it up with him at Christmas and I'll send mine down haha

 

Just thinking I may have missed the obvious of valve adjustment since rebuilding.........

 

I have noticed that you can get copy engines for £200 new, tempting......

[Rich2484]

Strangely the copy engines arnt that bad. Seen a few lifan ones on a few log splitters and they seem to work well.

[ukminch]

Yer there's a smaller one fitted to the log splitter I use. Adjusting te valves seems like the cheapest and most desirable fault at the moment tho!

[Rich2484]

Yeah to look at them they are the same, just need a honda sticker.

 

Depending on what drive you have the clutch system can be made of cheese. And the recoils are a bit funny, easy to stick. But easily replaced, so would suggest having a spare just in case.

 

Adjust the valves and try it.

[mixedangased]

Wow, has this really been 4 weeks ago.......... So I've managed to get the engine back together and went out to use it today, managed to snap the pull cord (nothing major) but now the engine is seeming to be hydro locked again, oil is clean this time, Im hoping something simple............

 

the gx340 engines have a problem of snapping the valve rockers where they pivot