When idling if you can hook a hose to the breather and blow leaves like a shop vac - that's too much blowby...
If idling for 5 minutes and it leaves an oil ring on the ground 10 inches around - that's too much blowby...
Our 1256 would leave an oil spot about the size of a silver dollar in 10 minutes of idling. Started OK, but not great. Still running for the next guy.
Neighbor had a 3688 would leave an oil slick in about 5 minutes, but started just fine so he kept running it.
Hard starting can be caused by a few things:
1. low compression
2. bad injectors
3. low injection pressure (bad pump)
4. incorrect timing of the injector pump
5. poor quality fuel
6. low temps
I can't say I've ever seen our 1086 blow white smoke at start up... Depending on how long and hard you run it before shutting it down, the white smoke could be condensation (water) in the cylinders just burning off. Or it could be a slight coolant leak.
Personally, for determining an overhaul, I would not use blowby. Low oil pressure, high oil consumption, and low compression would be reasons to overhaul. Compression check isn't all that difficult.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I�m handing him tools and he says, "give me that..." and I�ve already got it in his hand or "hand me that....."and I�ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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