Motor gets hot

[Dennishazard]

I have a 1966 evinrude 33 hp motor, hard to start, but once started seems to run fine in high gear, but when in low gear it wants to sputter and die, motor seems to get hot and I replaced the impeller but don’t know if it’s working cause I’m new at this, any help would be appreciated

 

[racerone]

Water in your test bucket must be 6/ 8 " above the pump !---You are sure the water tube is in the upper grommet in exhaust housing and lower grommet on the pump ?--You have checked for cracked ignition coils ?

 

[Dennishazard]

Didn’t know that that tube had to be connected to the pump, that would explain a lot, don’t seem to be much room to work with trying to connect that tube, but I’ll try to figure it out, I will also check the I’d ignition coils too, thank you very much for your help

 

[racerone]

Tube is installed in the exhaust housing grommet first.----Should be fairly easy to install in the pump when lower unit is installed.---Are you sure the tube is still original and the correct length ??

 

[F_R]

Going only by the paint in the picture, it looks ok. I've seen them burnt a lot worse. But of course this is a diagnosis from a distance.

 

[Dennishazard]

Tube is in correctly, but head gaskets seems to be leaking water, what’s my problem now ? How to I fix it ?
Thanks for your help

 

[oldboat1]

If leaking water at the head gaskets, the pump is putting it up there.

I would pull off the head cover and replace the gasket after resurfacing the cover. (sandpaper and a flat surface -- look for an equal shine all around mating surface.)

 

[boobie]

What's the compression on it ??

 

[Dennishazard]

Ok I’ll try that, but how would the pump be putting it up there ?
Dont know what the compression is on it, haven’t tested that yet
thanks guys

 

[oldboat1]

The cooling passages are up there surrounding the cylinders -- all comes up from the water pump down in the lower unit.

Compression check is routine if a motor overheated or is believed to have overheated.

[Edit. If a bad head gasket (leaks), it will fail a compression test so would want to replace the gasket before testing.]