sueanddaren

Ronaldo47 posted this a couple of years back:- Posted May 30, 2022 Unlike ordinary lubricating greases,which are designed to strongly adhere to metal surfaces to prevent them coming into contact,;Vaseline is a pure hydrocarbon that readily flows under pressure and does not strongly adhere to metals. It therefore allows the metal surfaces to achieve a good electrical contact while preventing atmospheric oxygen from coming into contact with the mated surfaces and oxidising them.

Thanks gents the two plumbers I showed the photo to just shrugged their shoulders. But they where quite young.

Does anyone know how one of these comes apart? Does it have a washer or some sort of sealing face? As its very old I don't want to break anything.

Try a food dye in the tank and see if the wet patch comes out coloured.

Don't know if this helps but the Barrus Shanks engines where Liadong engines (Shandong Huayuan Liadong engine company) think the popular one (40hp) was a LL480 but can't be sure about the exact model.

I can live with that.

Sorry Yuasa don't have or have ever had TPPL. You can't make TPPL on ordinary grid casters, you first have to roll the Lead to the thickness you want (normally around 1.4mm) then punch the grid. Around 2010 Enersys Newport managed to modify a concast machine to cast in pure and it took Leoch 5 years to copy that.

Sorry BT used the Yuasa EN100-6 which is a lead tin calcium product they don't have a thin plate pure lead product, only Gates (then called Hawker, now called Enersys) Northstar (again now part of Enersys) and Leoch had or have TPPL.

Not quite, it was the Tungstone product that had the group bar corrosion, they put them down their automotive lines and used antimony in the neg group casting. The Chloride product was fine in most cases unless the temp of the exchange went too high, as the telecoms industry boomed they crammed more and more equipment into the exchanges this gave off allot of heat and that speeded up the pos grid corrosion. Ive been in one central London exchange that was at 37 deg C even in mid January. Even the Gates cells couldn't take that sort of temp for too long, nor could some of the exchange equipment, so they put air con eventually.

At the very cheap end of the market some manufacturers have always used screw in caps on VRLA batteries, it allows them to get away with using standard lids and boxes. That said it does allow for the vent pressure to be pre tested before fitting. As for adding water to AGM, it can be done but you need a vacuum pump and a swap over filling head otherwise the water just sits on the top of the element. Without taking the whole battery apart and squeezing a sep between my fingers even I can't tell if the sep is too dry or not. Back in the early 1980's Exide tried to get into the AGM telecoms market without really knowing what they were doing and got the alloys all wrong. The cells gassed too much and dried out in less than a year, they had teams going round to all the AT & T sites adding water. Cost them a fortune and gave us (Chloride) an open market. These days everyone knows how to make AGM, but I have still seen the odd Chinese company get it wrong.

Knights Narrowboats | New Build Narrowboats | Aqueduct Marina

Yes

Knights are built and sold out of aquaduct marina.

The hardener that PCSB gave me worked brilliantly. So the paint is a 2K Acrylic system normally used on commercial vehicles. PCSB also had the spec sheet, so I have managed to find a 0.25liter tin of hardener for less than £12. Result

Thanks can you pm me your details?