Disconnecting the fuel line, let engine burn gas ?

[flyingscott]

It is still not a Wise Idea to let one carb dry out before rest of them

How many times did people run out of gas water skiing or tubing or just cruising. No not the huge issue people think it is.

 

[jimmbo]

Doesn't Negate that is not wise to do so

 

[racerone]

The oil is all over the parts !!-----It just does not disappear when only dry air starts coming through the engine !!-----These tall tales of damage when running out of gas just won't go away.----Proof that the concept of mixed gas / oil is not well understood !

 

[airshot]

Major improvements in materials were being made at that time. Early 60's and newer saw drastic improvements in metalurgy and in lubricants !!! Sometimes those simple coatings make all the difference in how long a friction point lasts. I know many have used the run it dry method for years without issues, but in reality, why take the chance?? Motors are terribly expensive nowadays and repairs are even a higher expense if you can even find a good mechanic, so why take the chance??? I wont, worked to hard to get the money I have, not gonna take a chance of wasting any !!!

 

[racerone]

Running out of fuel is NOT AN ISSUE !!!-----There are no cautions in owners manuals or labels on gas tanks either.------The lack of knowledge on 2 stroke lubrication is incredible !

 

[flyingscott]

Major improvements in materials were being made at that time. Early 60's and newer saw drastic improvements in metalurgy and in lubricants !!! Sometimes those simple coatings make all the difference in how long a friction point lasts. I know many have used the run it dry method for years without issues, but in reality, why take the chance?? Motors are terribly expensive nowadays and repairs are even a higher expense if you can even find a good mechanic, so why take the chance??? I wont, worked to hard to get the money I have, not gonna take a chance of wasting any !!!

What are these drastic improvements in the 60s.

 

[909]

I pull the line and run it dry. When it dies, I pull the choke, give it throttle and run it again. When it starts to die again , give it more throttle.

 

[Chris1956]

You run the motor out of gasoline on a Johnnyrude with OIS and you will have carbs full of oil. There is no quick disconnect on those oil injection models, for that reason.

 

[airshot]

What are these drastic improvements in the 60s.

If you are into metalurgy and material science you would know about all the advancementsf or improvements we have had in materials. Been involved in this field for over 50 years and to many improvements to even recall

 

[flyingscott]

If you are into metalurgy and material science you would know about all the advancementsf or improvements we have had in materials. Been involved in this field for over 50 years and to many improvements to even rreca

If you are into metalurgy and material science you would know about all the advancementsf or improvements we have had in materials. Been involved in this field for over 50 years and to many improvements to even recall

Pull a 63 and 64 Evinrude apart and tell me the differences? My 1958 Scott 60 hp has the exact same bearings/block as my 68 McCuolloch 75 hp. Why is the McCulloch capable of 100-1 and the Scott is 40-1. It is because of the oil not the Metullargy.

 

[jimmbo]

The only real differences on most Evinrude Models(18/20 and higher HP) between the 63 and 64 were, the 64 had Tin Plated Pistons, and the Auto Chokes used Hot Air, rather than Warm Water. A few of the small engines had changes to the Bearings to allow 50:1
The 100:1 mix required the use of McCuolloch's 100:1 Oil. In 1975, I saw several cans of the stuff at the Lake. That Oil died with McCuolloch.
In the 1980s OMC also briefly speced their Motors at 100:1

 

[racerone]

The 62 model 5.5 HP uses the same bearings ( big end ) as the newer 65 model 6 HP.-----The 50 :1 mix was a board room decision !------The general public thinks that a 50:1 engine is built better.-----OMC was loosing sales to the better promoted Mercury line-up.

 

[jimmbo]

I know the Clearances never changed between the 63s and 64s. In 64, OMC was still recommending 30 Weight Non Detergent Oil, or an Outboard Oil, likely the same stuff. They didn't market the TCW stuff until about 1966. OMC did notice a drop in Warranty Claims of Damage caused by Preignition after they switched to 50:1. Fewer Carbon Deposits on the Piston/Cylinder Head perhaps

 

[flyingscott]

You run the motor out of gasoline on a Johnnyrude with OIS and you will have carbs full of oil. There is no quick disconnect on those oil injection models, for that reason.

I think you mean VRO

 

[racerone]

Are you 100% sure carburetors will be FULL of oil , or just a little bit of oil ?????

 

[Chris1956]

Scott, the correct term for the VRO pumps used in the mid-late 90's was OIS, for Oil Injection System.

Racer, maybe the carbs will not be 100% full of oil, but they will gradually fill with oil, until the mix in no longer burnable by the motor. Is that a significant difference? You still gotta drain them or you will probably never get the motor started. You might even foul your plugs to where they would need to be cleaned.

 

[racerone]

Nonsense------The oil pump does not pump enuff oil to fill the carburetor as the carburetor is running empty !!!!