CLUELESS #207?????

[ElMar2530]

Box, if I may...

I was doing a little maintenance on my rig today in the near spring like weather and had the digital camera out snapping a few shots. I though I would put up a clueless to see if anyone could guess.

You can see my occupation so in the interest of educating the SFC community, what is it.......

[BYRD]

water pump housing?

[Foul Hook'd]

It's where the zinc goes in the water jacket on a OB.

Foul Hook'd

[Buckeye]

Blurry

[lobstahunter]

looks like a piston inside a manifold sparkplug hole

[WAHOONBOX]

COULD IT BE THE BUTTHOLE OF A ROBOT?.... YOU GOT ME DUDE....

[Tenacious]

Is it a HPIM0100?

[ElMar2530]

COULD IT BE THE BUTTHOLE OF A ROBOT?.... YOU GOT ME DUDE....

Actually Foul Hook'd got it right!!!!!!!!
For that you get to see some carnage.

If you guys have Yamaha engines, check the zincs in the head!! My engines have over 700hrs and to my knowledge the zincs have not been touched. In one pic you can see the gaskets which were damaged, causing corosion around the head. I should have pulled them when I bought the boat 2 years ago.

Larger pic of the head and spark plugs on Stbd F200



Picture of zinc anodes and damaged gaskets.

[WAHOONBOX]

GREAT INSTRUCTIONAL CLUELESS BRO!

[ReelSmith]

Good one! Good info to share too, Thanks!