Lister Engine Forum

How to / DIY => Everything else => Topic started by: Johnny slab on May 06, 2019, 01:26:08 PM

Title: St1a oily exhaust smoke and grade of engine oil
Post by: Johnny slab on May 06, 2019, 01:26:08 PM
Hi all
I’ve been working on my Davis chain trencher and am wondering what engine oil should be in it- at present I’ve got 15w40 part synthetic but am a little concerned that the exhaust smoke is a bit oily. Any advice?
Title: Re: St1a oily exhaust smoke and grade of engine oil
Post by: Johnny slab on May 07, 2019, 08:40:15 PM
That would be hydraulic lock- I don’t think I will try that one.
Title: Re: St1a oily exhaust smoke and grade of engine oil
Post by: sirpedrosa on May 07, 2019, 09:45:03 PM
Hi JS

Maybe is time to take a loock at the piston rings waring...

BR
VP
Title: Re: St1a oily exhaust smoke and grade of engine oil
Post by: guest23837 on May 07, 2019, 10:39:21 PM
Glort is a multi talented and knowledgeable individual he's never going to tell you anything that's not true. I was very worried about dripping the water into my engine however it went very well the engine was hot water turned to steam and as you know steam is great at cleaning anything. Glort also has the ability to swear for 15 minutes without repeating himself.
Title: Re: St1a oily exhaust smoke and grade of engine oil
Post by: Hugh Conway on May 08, 2019, 01:15:08 AM
@ Johnny slab
Have no fear.

As Johndoh said, "Glort is a multi talented and knowledgeable individual he's never going to tell you anything that's not true."  He might run on a bit, but won't give you a bad steer.
I squirt about 1 liter of water into my 6/1 every so often to keep the innards clean.
Been doing it for almost 7 years. Does not even slow it down. I do it when running a fair load on the generator.

It works fine. give it a try.

Cheers
Hugh
Title: Re: St1a oily exhaust smoke and grade of engine oil
Post by: buickanddeere on May 24, 2019, 05:19:29 AM
   Oily smoke and soot deposits are products of incomplete combustion.  Engine coolant temp should be 195-210F. straight 40 weight oil is better than 15W-40.  Air filter ? Too small or dirty ? Injection event too late ?