New Stag, new water pump

[richardthestag]

I'm surprised stagdads pump has not been mentioned as a viable alternative. I think this is such a good mod and I'm so pleased with mine. Stags without everyday use are more prone to either seal failure or general wear and tear being used for short journeys. And having a pump at the top of the engine is not the best design.
I know someone who has had a failure and he only took his eye off the temp gauge for a second and that was it total failure total rebuild all I have to worry about is a belt coming off
it's a shame we can't get the details of this conversion in the technical area for it to be copied
edd

Morning Edd

I am not sure I understand the difference in impact between a CWP ;-) running dry and a EWP belt breaking. Surely the end result in both cases is coolant stops circulating and engine will overheat.

re your acquaintance, I would much rather keep my eyes on the road hence low level warning light in place of seatbelt warning light

My dad experienced a cooling hose failure in his saab 9000 (alf a stag engine init) and that overheated and caused head damage in the time it took to get from lane 3 to the hardshoulder. he had a coolant level warning light on the dash. so that failure was measured in seconds.

My old range rover 3.9 popped it's cooling system on the m40 due to slipped liner issues, unfortunately i was stuck in lane 4 and access to hard shoulder was blocked by traffic queuing to get into the m25. I had to drive just over a mile and by the time I stopped the engine had seized solid. although it did start again after an hour of cooling the thing was a total loss.

that said I do like the idea of the ewp rather than the more expensive eewp And modern belts make a heck of a racket hours before they eventually fail. not sure I have heard of one snapping since I was a nipper. So i guess that your faith in EWP setup is justified.

My low level warning light and modified high level expansion tank setup means that I can keep my CWP for the time being

[edd]

So if mine gets hot I won't throw valves into pistons scrapping the heads. Lots of stags overheat without total failure. I look at my temperature gauge as much as my speed as much as oil pressure as much as the time as much as the view as much as the tress I sometimes look at the road even I have always prefers mechanical pumps to electric. It's nice to see something physical my belts are very well fitted so I can't comment on noise
so in essence the choices are if something fails how much damage is the end result it's a personal choice
Another thing to mention is you never here of the dizzy drive sheering off or seizing. Identical drive off the lay shaft but never a problem.
I appreciate lots of stags are fine but I think after a expensive rebuild or restoration this is a viable mod either way just not standard water pump. A header tank and yes a low level indicator is a brilliant addition
happy stagging

[alan_thomas]

If you could remove the standard pump without pulling off the inlet manifold then I am sure people would continue with the standard pump. The problem is that removing the inlet to get at the pump is such a pig of a job it turns what should be a 15 min job into hours and because of that I vowed never to run a standard pump.
After shedding the teeth from the pump drive shaft on my first Stag (one of the unhardened batch) I fitted a bung and fitted an Electric Davis Craig pump - worked great and, as said, had the bonus of running after switch off to disperse the heat. On my latest stag after getting the classic 'water in the vee' I have ditched the std. pump and fitted a ford essex pump in a similar way to Stagdad's mod.

Which is better? No clear winner in my book but both are infinitely better than the standard offering in terms of access and reliability.
- Alan

[I am Groot]

If you could remove the standard pump without pulling off the inlet manifold then I am sure people would continue with the standard pump. The problem is that removing the inlet to get at the pump is such a pig of a job it turns what should be a 15 min job into hours and because of that I vowed never to run a standard pump.
After shedding the teeth from the pump drive shaft on my first Stag (one of the unhardened batch) I fitted a bung and fitted an Electric Davis Craig pump - worked great and, as said, had the bonus of running after switch off to disperse the heat. On my latest stag after getting the classic 'water in the vee' I have ditched the std. pump and fitted a ford essex pump in a similar way to Stagdad's mod.

Which is better? No clear winner in my book but both are infinitely better than the standard offering in terms of access and reliability.
- Alan

Stag dads pump i have heard is great solid alternative but i think the lack of belt, increased bhp and ability to be programmed to hold different temps and run on after switch off has got to put the ewp in the number 1 slot! They last a very long time and are very reliable, i havent ever had an electric pump fail on a modern! If it does theres a warning system long before you overheat.