Monsoon engine, disconnected the 2 hoses at the dash end to winterise, core was empty. Put them back on to start the season and lots of steam coming from under the dash and through the vents, also noticed bilge filling with hot water. Wondering if I have put them back wrong, flow and return? But that wouldn't explain losing water? 

4 hours ago, 3okes said:

Did you actually make those or buy them?

Made them up. Bought the wheels from amazon. Ultra-Fab Products (48-979015) Rigid Skid Wheel

You can run up to the local hardware store and buy 1/4" square brass rod.  Cut it to length and maybe file it a bit to ensure good fit.

2 hours ago, Andygudge said:

Hi, just join them together so there is a contant flow loop or cap them individually?

Thanks

Constant flow loop is probably better.  Some engines require the heater loop to flow.  SBC does not, but you didn't say what engine you have.

Huzzah! After 3 rounds of WD40 soaks over 12 hours, and 30 minutes of taps with a hammer and punch I have a clean shaft ready for a new brass key and prop. 

Thanks to the crew - doing some outward facing taps on the key were key. I cleaned it up a bit after removal and confirmed steel.

New key comes in a few days and I should be set. I was worried about the shaft strut, bushing and drive shaft but I have very little play in the shaft and had no vibration underway so I should be clear with just a new prop and a minor repair on the old.