| Author |
Message |
    
veloce
Member
Username: veloce
Post Number: 14
Registered: 08-2003
| | Posted on Tuesday, June 28, 2005 - 05:01 pm: | 
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My OME friend and I are having a discussion about the proper oil for our 1909 Straubel, 6hp. I have been using 30 ND mixed about 30:1. He insists modern two cycle oil is better and that I am having to fuss with the mixing bowl mixture too much with "my gas."
Any ideas on the advantages of 30 ND or two cycle oil? Also would like thoughts on mix. I do foul the plug occasionally (about every 10 hours of running).
Russ Whitford,
Milwaukee, WI |
ernie
Senior Member
Username: ernie
Post Number: 513
Registered: 01-2002
| | Posted on Tuesday, June 28, 2005 - 05:41 pm: |
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I have used my "chainsaw mix" for as long as I have been playing with old engines. 1962 I think.
My chainsaw uses 30 to 1. With chinsaw oil. I don't foul plugs and don't have smoke or oil splatters out of the exhaust. |
richardday
Senior Member
Username: richardday
Post Number: 421
Registered: 11-2003
| | Posted on Tuesday, June 28, 2005 - 06:08 pm: |
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Modern chain saw oil won't hurt your antique marine engine but it sure can make a mess if the engine is badly worn as it can fly out the exhaust pipe something terrible. It also leaves a significant oily wake which can cause problems with the Coast Guard. I stick to the classic 40:1 mixture with SAE 30 non detergent/regular gasoline. The problem with chain saw oil is it is formulated for high temp burning and these antique marine 2 strokes run cold and therefore the oil doesn't burn in the upper chamber as in a chain saw or weed whacker.
You wont win any friends at an engine show if you spray black oily mess on your neighbor using either chain saw oil or too much 30 weight oil in the fuel. As kids we used 75 weight in our motocycles as they ran so hot.
Mixers can be very finicky and just changes in moisture in the air from one day to the next leads to slight adjustments of the needle valve under load conditions. |
veloce
Member
Username: veloce
Post Number: 15
Registered: 08-2003
| | Posted on Tuesday, July 26, 2005 - 06:23 pm: |
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OK, here is a dumb question. Is chainsaw oil the same as outboard two cycle oil?
Russ |
ernie
Senior Member
Username: ernie
Post Number: 533
Registered: 01-2002
| | Posted on Tuesday, July 26, 2005 - 08:06 pm: |
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NO! However it is in our favor. You can use chain saw oil in an outboard or old inboard 2 stroke water cooled. The oil is designed for temps a lot hotter than a water cooled engine will run at.
You CANT use outboard oil in an air cooled engine. The oil is NOT designed to stand up to the temps that will occur in an air cooled engine.
As to ratios...I'm not going there. |
richarddurgee
Senior Member
Username: richarddurgee
Post Number: 806
Registered: 11-2001
| | Posted on Tuesday, July 26, 2005 - 08:54 pm: |
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Ernie
Whats enough has always been confusing !!
One Martini is not enough. Two Martinis is too much. Three Martinis is not enough.
And what is the proper ratio of dry vermouth to 2 oz of Gin ?? |
ernie
Senior Member
Username: ernie
Post Number: 534
Registered: 01-2002
| | Posted on Wednesday, July 27, 2005 - 06:54 am: |
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just wave the vermouth bottle over the glass |
