Hey'all,
As the title says, I am having some issues with my 1973 Johnson 20HP long shaft.
I got it with a boat I picked up recently, and compression was excellent (120 top and bottom), so I decided to try and get it running.
After replacing points, condensers, primary coil, plugs, and a carb cleaning, I finally got it running kinda sorta in a bucket. I think it needs to open up on the lake to clean out the carbon though. Still a bit rough.
I replaced the impeller and the thermostat before anything. I also stuck a couple of new o-rings on the driveshaft tube. Now that it's kinda-sorta running in a bucket of water, I can see water draining out from the lower unit. There is a hole(s) on the front side of the lower unit facing the transom that is draining water. Is this a sign that the water tube is leaking inside the housing? Or something else is leaking? There is water blowing out with the exhaust, so at least some water is getting to the powerhead.
If the boat was in the lake, you may never notice the holes draining water, so maybe it's not an issue. I just want to know if I have to reseal the lower unit before spring.
I have to wait until spring before I can get it into the lake, so until then, it's all bucket testing.
Thanks all.
As the title says, I am having some issues with my 1973 Johnson 20HP long shaft.
I got it with a boat I picked up recently, and compression was excellent (120 top and bottom), so I decided to try and get it running.
After replacing points, condensers, primary coil, plugs, and a carb cleaning, I finally got it running kinda sorta in a bucket. I think it needs to open up on the lake to clean out the carbon though. Still a bit rough.
I replaced the impeller and the thermostat before anything. I also stuck a couple of new o-rings on the driveshaft tube. Now that it's kinda-sorta running in a bucket of water, I can see water draining out from the lower unit. There is a hole(s) on the front side of the lower unit facing the transom that is draining water. Is this a sign that the water tube is leaking inside the housing? Or something else is leaking? There is water blowing out with the exhaust, so at least some water is getting to the powerhead.
If the boat was in the lake, you may never notice the holes draining water, so maybe it's not an issue. I just want to know if I have to reseal the lower unit before spring.
I have to wait until spring before I can get it into the lake, so until then, it's all bucket testing.
Thanks all.