1948 Goodyear 1g4

[adkdave]

I have a 1948 Goodyear (Gale) that I'm trying to get ready for spring. It has not run in 20 years but when it was put away it was running and was run dry of fuel. The carb and tank are clean. I tried to spin the flywheel and there was a lot of resistance. Found the problem to be the drive shaft bushing going into the gear box. Separated the gear box from the leg and took the drive shaft out and cleaned the rust off. The question is will water now enter the gear box down the bushing? How do I prevent that? I've heard the using Lubriplate white grease will retard the water entry. True? Secondly, the little water tube that goes from the gear box up the leg, how can I be sure that it slid into place when I but the lower unit back together. Where should the coolant water come out of the lower unit? Any advice will be greatly appreciated. Thanks

 

[steelespike]

Re: 1948 Goodyear 1g4

welcome,
Grease is the normal gearcase lube. Lubriplate 105 is the modern suggeston.
Seals on the gearcase aren't that good Being sure the bushing isn't too loose will help.The various gearcase bushings are porous so grease leaches through anyway.
It will get into the pump under the prop and make it swell so it doesn't work right.
Water should come out of the slits in the upper leg.You will note there is a water intake hole in the prop near the base of the blades.

 

[adkdave]

Re: 1948 Goodyear 1g4

Thanks for the reply. Two things: Grease will enter the water pump behind the impeller and stop it from working? Can I fix this by taking the water pump apart and cleaning and reassemble? Secondly, is there a way I can check to see if the tube going from the water pump up the leg is inserted correctly before firing up the motor? I did note the rectangular water intake hole behind the prop.

Dave

 

[F_R]

Re: 1948 Goodyear 1g4

Thanks for the reply. Two things: Grease will enter the water pump behind the impeller and stop it from working? Can I fix this by taking the water pump apart and cleaning and reassemble? Secondly, is there a way I can check to see if the tube going from the water pump up the leg is inserted correctly before firing up the motor? I did note the rectangular water intake hole behind the prop.

Dave

Grease leaks out of the lower unit due to bad propeller shaft seals. Truth be known, they really weren't that great when new. Anyhow, the grease attacks the rubber impeller (properly called a "rotor"). That makes the rotor swell up and not pump like it should, and when it gets bad enough it won't pump at all. There is no fixing the rotor, you just replace it.

The rotor should be a close fit on the eccentric in the center and just touch the inside of the housing on one side. There should be a space between the rotor and housing on the other side. If you watch that space while slowly cranking the motor over, you will see it appear at the inlet side and progress around to the outlet side, where it disappears, only to reappear at the inlet. It is that space that takes in a gulp of water at the inlet and moves it around to the outlet, forcing it up the water tube. The tab on the rotor does not pump water, it is only to separate the inlet side from the outlet side.

 

[adkdave]

Re: 1948 Goodyear 1g4

Gentlemen: Thanks for your help and advice. I think I might have a solution to the water pipe insertion problem. When the gear box was disassembled, I jammed a turkey baster full of water in the round hole at the top of the gear box housing. Squirted the water up the pipe and looked to see if any water came out the exhaust port. None did. All the water came back out the hole that it went in. Filled the gear box with grease, made a new gasket and now I can't wait for ice out. Thanks again,

Dave