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Old 12-11-2013 | 09:40 PM
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flejter1
 
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From: Oak Hills, CA
Default 2 Stroke Oil = failed bearings

To those using 2 stroke oil,

I'm starting to see a trend!!

I just recieved yet another K-140 (among 4 others in last month) and this customer is running 2 stroke oil. He has 16hrs on his turbine and the bearings are worn out already. He has some goopy tar like substance all over the back of the turbine, I am assuming it is from his oil. I have had others that didn't make it past 8 hrs before developing bearing noise. I don't understand why our customers are expermenting with 2 stroke oils when we pay thousands of dollars to purchase a turbine and the factory recommends (page 13, use Diesel, Jet A, Kerosene and "5" % KingTech Special blend or Synthetic turbine oil).

2 stroke oil is designed for internal combustion piston engines that run at 200-250* F. I'm sure the oils are superior oils for dirt bikes and snowmobiles but they are not designed to be ran in turbines. Our turbine as you know runs at 400-650*C or 700-1200*F. It appears that the 2 stroke oil is vaporizing before it has a chance to lubricate the bearings properly.

I read how guys are saying they have 6-8 hrs running 2 stroke oil and in their opinion all is fine when actually the real damage is done and its just showing itself. The whole idea of using Turbine oil is to get a good 25hrs before servicing them, not 6- 10 hrs.

Better example, I get turbines in with 25+ hrs running KingTech oil & Diesel and the internals are very clean with no coking. I have told some customers running our oil to go to 35hrs and send it in for its next service. Our oil is extremly healthy for the bearings and they are lasting much longer.

To every one reading this, STOP USING AEROSHELL 500 & ALL 2 STROKE OIL!!

I'm sure this is going to open a debate for all the chemists out there, but I am speaking first hand on what I see when I take the turbines apart.


The pictures show the tar goop and the turbine wheel is ash white and extremely dry. The normal turbine wheel is brownish and has a wet oiled look to them.





Regards,

Dirk
KingTech Service
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Last edited by flejter1; 12-11-2013 at 09:47 PM.