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not sure how to upload pics because it keeps saying pics too large for server otherwise I’d love to show you guys what I’m dealing with. Bottom of head I see oil burn marks going up one side of the intake port

Yeah actually I just tore the motor down again and noticed the muffler had what looked like oil resin. And when I start the motor it takes about 10 seconds before it starts to blow smoke. The. It smokes for about 30-40 seconds before it peters out.

customer states the mower was parked for two years then when ran it started smoking. He says when oil gets down low enough to the add mark on dip stick then won’t smoke

White.

That’s interesting I’ll have to look into that as well then. Thanks man

It’s all good though. I think the boss knows it’s not the honing. He suggested it was rings and was wrong. He probably trying make it look like I messed it up. But I don’t care. I have the green light on the head replacement from customer. So that’s that.

Well that’s what I’ll do then. Replace the head.

Unfortunately that’s not an option. The customer priced an engine at 1250 after freight. And wants this one rebuilt etc. this is a huge headache

Compression is fine. Don’t have the means for a leak test I don’t think.

No

I think it needs a head replacement myself. I’m going to pitch it to him. The reason it was brought in to us was it was smoking badly and burning a quart an hour. So I think it’s doing fantastic compared to what it was. In my opinion I think the valves are the problem now.

Problem is the boss ain’t happy and tells me the mower ain’t leavin the shop till it starts without smokin. Would a new head clear it up?

Well it seems to smoke in both work or cold. And it only lasts about 30-40 seconds and clears up. If I shut off the motor and start right back up won’t smoke. If I wait about 10+ minutes before firing it up again then it’ll smoke

Yeah I drained it. Cleaned the block really well. I honed it but my boss says it’s probably not honed very well It’s a Briggs and Stratton 74350

I work at a rental shop and just tore down a zero turn replaced rings and head gasket. Was burning oil badly like a quart an hour. Well now it smokes on start up for about a minute. Well I realize I had oil in the carb so I let it run half an hour. Anyway it still smokes on start up. Any ideas thank