Recent content by Roughcut

Following an over-enthusiastic shopping moment, I have a (unopened) 2.5L can of White Cruiser 200 antifoul? Half price for £45? I've also have an unused 563ml can of Green GelShield 200 for a tenner - or £50 for both. Both still in date for application this season. Collection from...

NOW SOLD.... THANK YOU> Following a project that never quite made it to the fitting stage - I have the following for sale - all 1 ½” BSP: 1 x TruDesign Ball Valve - Lever Operated 38mm straight Hose Tail 120 degrees 38mm hose tail All completely unused - purchased new for a little over £60 a...

As a result of another grand boat idea that never quite made it - I have the following items for sale: 1 x TruDesign Ball Valve ¾” BSP - Black Straight tail: ¾” BSP to 19mm tail 90 degrees Connector, male – female ( ¾” BSP) Domed Skin Fitting 1.5" BSP White All unused - purchased new for...

Thank you - that's a useful chart. Not seen before... Looks like I'll be trying them next season.

Yes - for similar reasons I'm rethinking my plan to re-fit the SS props after all this - and just keep the Aluminium ones on. As far as I can see using B6 rather than C6 gives me the same WOT, same top speed, MUCH smoother take up from neutral into gear, and a cheaper repair if (when!) I hit...

Just a post-script for anyone still at all interested in this! I finally found the problem. One of my drives had been rebushed and both SS propellers had been fitted with Aluminium hubs rather than the electrically insulated bronze hubs. So there was effectively a galvanic circuit set up...

Thanks for this - that’s a really useful thought. It would explain the more rapid corrosion of the ring anodes which are right next to the SS props. The props have been re- bushed, and I believe VP have changed the design of the hub- so I’m wondering if that could be the cause of a change in...

Thanks - just ordered a pair of Zincs from Anode Outlet - I think they're part of Pirates Cave Chandlery. Seem v helpful.

Thank you. I didn't know (til I started this thread) that VP were discontinuing Zinc anodes. I just wonder how well their new(?) Aluminium anodes will protect in salt water. I've got a small stock of Zinc for now - I imagine 3rd party suppliers will keep selling Zinc for the time being.

Thanks - that's very interesting. Your pictures are similar to some of mine. There are no steel boats nearby - but the boat is on a long trot, so I think all the moorings must be linked by a single (steel?) chain. I did wonder if that might be acting as a big electrode. I'm the only motor...

They’re DPG legs - stainless props and yes they have the old-style impressed current system. 2 units on each side. The lights blink at roughly the correct rate as far as I can tell but I have no idea if they really work. Do they ever wear out? Or need refurbishing? I did see something about VP...

I gather there's an old Volvo Penta publication dealing with corrosion in outdrives - "Marine Electrical Systems" - part no 7733534-7 . Anyone know where I might find a copy?

3 different suppliers - all reputable dealers too!

Thanks - I did measure the resistance from hub to outdrive when it was out of the water, and though I don't recall the exact figure, I think it was in the low megohms. The other area of concern now is the bonding continuity across the outdrive itself. The transom bracket is well bonded to...

Yes - the props are Stainless - but possibly more significant is that they've been re-bushed at different times over the past few years. I believe that VP may have changed the metal of the hub core - so I wonder if that's a factor. But still should be protected by Zinc anodes (in sea water)...