holy water pump!

[oldgeebee]

This doesn't rank as one of my best buying decisions made on the re-build!
Not only is the bypass pipe open (not needed on the 3000S set-up) but there is a built-in leak in the casing around the pulley shaft.



Is this a handy option for adding a grease nipple or ...?

GB

[hallsie]

Its a 'tell tale' for when the inboard seal gives up and will give you a clue thats its gone before really going pop.

Stu

[phillpot]

They may be getting a bit rare now but there used to be a proper little rubber blanking cap for the by-pass. I tapped mine out (quarter BSP ?) and fitted a brass plug and fibre washer, just visible in photo.

Hole, as said, is to allow any water that may pass the seal to escape rather than build up to a point where it would wash all grease out of bearings.

Edited by phillpot on Friday 14th December 18:40

[hallsie]

Loving the cheeky alternator tensioner!

Stu

[oldgeebee]

hallsie said:

Its a 'tell tale' for when the inboard seal gives up Stu

So my never used pump has got duff seals?

GB

[bluezeeland]

Indeed, where did you get that nifty little alt tensioner ? @ graham; as above, solved mine with a piece of hose and blanking plug (in forex, foamed pvc) 'the' hole is a early warning thingy.....

[oldgeebee]

Yeah - I wasn't too worried about the bypass tube - a piece of hose with a blank was my first thought but I like Philpott's tapped blanking plug solution (1 leak point less).
But I reckon the pump was leaking through the small tell-tale hole so that means the seals are shot - which is annoying.
I suppose I'll need to blank off the bypass and then remount to be absolutely sure.
GB

[phillpot]

bluezeeland said:

Indeed, where did you get that nifty little alt tensioner ?

apologies for high jacking thread..... this is Mk1 on my S3 simply made from a couple of rod ends and some threaded rod



The Mk2 on my Taimar (previous post) was bought complete from McGill Motorsport

[pridaux]

Holy Water pump now thats a good idea make some holy water all you need is to boil the Devil out of it sure you will when you get it on the road
Getting there Graham
Andrew

[bluezeeland]

@GB; if shod, why don't you get a new pump ? (not really gold dust.....)

@phillpot; cheers mate, i'll get a turnbuckle like that soon !

[oldgeebee]

Frank, it is new - as in bought some moons ago and never used til now. Just p'd off that an unused pump is leaking (and not knowing what the tell-tale hole was for ...)
GB

[bluezeeland]

Dunno if more apt peeps out here know if you can get it going (as in if seal is duff, one can bring it back to life, read not leaking....)
Indeed a bit annoying on a never used pump !

[phillpot]

oldgeebee said:

Just p'd off that an unused pump is leaking

Possibly shaft had surface rust, soon as it turned would have damaged seal ?

[oldgeebee]

phillpot said:

Possibly shaft had surface rust, soon as it turned would have damaged seal ?

Could be - but if you look at the original photo, there's a shiny line on the left of the hole. I'm pretty sure that's the shaft and at least that part of it doesn't look rusty.
I had some trunnion seals that just disintegrated without being used in anger and I assumed some sort of contamination got to them. Maybe it's the sea air here in sunny-ha-ha Devon.

GB

[pridaux]

Out of interest Graham where did the pump come from as you do wonder where some parts originate and how long they have been sittin on the shelf and maybe even in a cold damp shed somewhere for a long time.
Andrew

[Astacus]

Ive had issues with seals and rubbers disintegrating.

The thing is, none of these spares are made by the original manufactureers anymore. They are not even made by the original companies that supplied the manufacturers. In many instances they are made "overseas" by companies who have no real interest in quality and dont have acces to the know how of the originators. This means they just use what ever grade of rubber they think is suitable.

Even if you buy spares trademarked with old trusted brands, those trademarks have sometimes been sold on to someone else.

[oldgeebee]

pridaux said:

Out of interest Graham where did the pump come from as you do wonder where some parts originate and how long they have been sittin on the shelf and maybe even in a cold damp shed somewhere for a long time.
Andrew

I bought it "online" around 18 months ago (when I thought progress might be a little faster than it has been!) so it's been sitting in my cold but dry garage wrapped and boxed since then. The online shop looks OK but we all know that's tricky to judge until things go wrong. Don't want to name and shame at this stage since it could still be my finger trouble.
Having had a bit of a closer look at the pump, I noticed a little nick on the casting lip next to the seating flange which might mean that the pump wasn't seated properly when I bolted it up so could have been leaking because of that. I'll have to remount it and check :sigh:

GB

[bluezeeland]

True: if not seated properly it will leak, i've put some blue silicone in between, which seems like doing the trick....

[oldgeebee]

Just to close the topic and thank all for their inputs, it was my fault for not seating the pump on the flange before tightening up. It was then fouling on the engine block as can be seen in the gouge next to the lower bolt hole in the photo.



Also found a neat solution to blanking off the bypass tube - ebay item 270967905450.

Pump now back in and working.

Happy New Year to all!

GB

[phillpot]

oldgeebee said:

Also found a neat solution to blanking off the bypass tube - ebay item 270967905450.

perfect !