For what it's worth, I used stainless steel countersunk with hex socket heads (easier to get out later) with a good amount of sikaflex to seal and form an electrolytic barrier.

Having a clear out so this lot has to go. Dolly £30 X flow exhaust manifold water injected - offers X flow inlet manifold with SU adapter - offers x flow engine mounts - offers Box of Rivetwise rivets, cleeco pins and “special countersink tool” - offers Other bits, thrust bearing etc - offers 1600 s...

Hello, yes please I’d love a copy.
Can I pay you for printing and postage costs?
Malcolm_edwards@me.com is best
Thanks
Malcolm

Send me a pm with an email address and I can send you some pictures

Not difficult, it’s for an SU low pressure pump. It fits on that bracket pointing backwards. The outlet with a gravity non return valve inside sits at the top. Options? Buy a new one from Burlen or check eBay, but one and a rebuild kit from Burlen. Are they reliable? Well…. Known to be sticky at tim...

Big dam, small boat.

Great shame but very understandable.
Roll on 2021

I’ve done some checking and it seems that “Galvanic Isolators” place a block in the Earth lead which, from what I can tell is probably four diodes in bridge format, ie two pairs in series but back to back. This gives a 1.2 volt barrier so there is no galvanic current path. For all other purposes the...

Galvanic corrosion needs contact between two metals which are apart on the periodic table and moisture. The same materials can cope if it’s wet, different materials if it’s dry. Two or more different materials and moisture equals problem. I think there are two issues here, one at the switch body whi...

Looking at the transom it's strange. You can see where the original holes were. Below that is another set of holes which looks like it could have been modified for an outdrive, lastly the plate has been properly riveted.
Strange - did the seller know any history?