SU electric pump venting Mk2 Cooper S

[minstix]

Hi,


I know this topic has been covered in various ways in the past but can't find the answer to this question though. It's regards the venting pipe from the electric fuel pump. I bought a new SU pump to replace my original pump, which wasn't in a great state. Also, the new pumps are claimed to be resistant to ethenol. It does look and seems to perform exactly as the original, having two vent connectors on it.

I remember that when I first got the car back in the mid 1980s, there was a single thin pipe running from one of these vent connectors to a little nylon connecting thing that was attached to the heel board. Part number 13H1640 I believe. These are no longer available but luckily my one is still in place, albeit it has been paint sprayed when the shell was restored recently. I will have to carfully run a small drill through it and am aware of the fuel pipe in the imediate proximity on the other side. The thin pipe has long ago disintigrated and gone but suitable thin flexible plastic pipe is easily available.

I can't remember which of the two vent connectors on the pump it connected to. The pipe was discarded more than 30 years ago. Should there be a T piece joining both vents or do I just ignore one of them? I don't remember there ever being a T piece.

Any thoughts?

Cheers,

Steve

Existing original vent connector on heel board from inside car..jpg

SU pump vent connector 1.jpg

SU pump vent connector 2.jpg

[360gts]

The venting should be on the upper body...that is where the diaphragm is....
The vent on the bottom.....that is where the points are.....I would be concerned about leaving that one open....you wouldn't want the damp British air getting in there.
There is no reason to have a vent there,,,,well none that I can think of! I would put a sleeve over it...like the one on the threaded stud.

[Peter Laidler]

I agree with Dermott. The diaphragm vent is to allow for the internal air pressure within the pump body to remain at neutral whatever position the diaphragm is in......., so when the pump is running the diaphragm vent is always venting, in and out.

As for the points end, it really doesn't need a vent unless you want to "Tee' it to the diaphragm vent pipe.

[Ronnie]

In period all the fuel pumps I had used this type of end cover, including the works twin AUD 408 https://www.ebay.co.uk/itm/166829061852 ... BMgLKdqPJk the cover over the breather contained a ball bearing (non return v/v), as Dermott above
said just blank it off most of the pumps appear now to have no breather on the points cover.
Available > https://www.somerfordmini.co.uk/valve-a ... -fuel-pump Remember mini fuel p/p is out in the weather a lot of the pumps are in better protected positions

[Spider]

This was the factory's retro fit advice. The factory installations were the same;-

[minstix]

Thanks guys, this is all very useful stuff. I will order one of those valves to fit to the electrical end of the pump and run a piece of new plastic tube to the existing nylon connector in the heel board.

Cheers,

Steve

[Peter Laidler]

Isn't it amazing what you learn on this forum.........

[minstix]

Indeed it is. A fount of knowledge when it comes to classic minis.

[winabbey]

Part number 13H1640 I believe. These are no longer available.

That part has been reproduced and is available from a number of Mini spares places downunder. Here's a couple.

https://minisport.com.au/products/mini- ... -pump-vent

https://www.classicminispares.co.nz/sto ... early-mini

[minstix]

Ah, yes. I just noticed that. I believe someone down under is 3D printing them. I can’t imagine there’s a big demand for them but great that some people are reproducing these impossible to find things.

Steve

[Tim]

That particular part was a hot topic in the Australian online Mini community. Some of the originality aficionados almost came to blows (OK, I could be exaggerating) over the presence/absence/originality of that little vent rivet thing. So not only are they reproduced here, but it appears that there are two different suppliers of them.

Tim

[MiNiKiN]

Part number 13H1640 I believe. These are no longer available.

That part has been reproduced and is available from a number of Mini spares places downunder. Here's a couple.

https://minisport.com.au/products/mini- ... -pump-vent

https://www.classicminispares.co.nz/sto ... early-mini

29 to 35 AUD I'd rather hand carve it from amber than pay that silly money for a plastic clip. Luckily I still got mine

[Spider]

That particular part was a hot topic in the Australian online Mini community. Some of the originality aficionados almost came to blows (OK, I could be exaggerating) over the presence/absence/originality of that little vent rivet thing. So not only are they reproduced here, but it appears that there are two different suppliers of them.

Tim

And that's everything that's wrong with the Mini scene on the East Coast - they'd soon speak with their fists (so to speak) than enjoy their cars

29 to 35 AUD I'd rather hand carve it from amber than pay that silly money for a plastic clip. Luckily I still got mine

Prior to the reproduction item becoming available, used ones were selling on ebay for north of $500.00.

[AndyPen]

This was the factory's retro fit advice. The factory installations were the same;-

Thanks for posting this Spider, my Feb 64's hole wasn't quite circular and was clearly drilled out at a later date, so this bulletin clarifies that mine was done as a retro fit.

[winabbey]

So not only are they reproduced here, but it appears that there are two different suppliers of them.

Actually there's another supplier who has had "thousands" of them made in China in plastic (not 3D printed) using a NOS original as the sample. I spoke last night with Matt Read who runs Readspeed Mini Mecca in Brisbane and he confirmed he has supplied Karcraft and other Mini parts outlets in Oz with them. He sells them for AUD $15 each. Be aware the manufacturers made them almost exactly the same colour as the sample which had faded and yellowed a bit over time, so they look "aged" rather than bright white as they would have been when new fifty years ago.

He's happy to provide a bulk quantity to anyone in the UK (or elsewhere) for on-selling if there's deemed to be a market.

Contact Matt via email - theminiman@bigpond.com

[winabbey]

That particular part was a hot topic in the Australian online Mini community. Some of the originality aficionados almost came to blows (OK, I could be exaggerating) over the presence/absence/originality of that little vent rivet thing. So not only are they reproduced here, but it appears that there are two different suppliers of them.

Tim

And that's everything that's wrong with the Mini scene on the East Coast - they'd soon speak with their fists (so to speak) than enjoy their cars

Ha ha, I remember the heated discussions back then. Lots of words spoken and opinions aired over such a small part.

Of course it was a vocal minority who participated in the unmoderated debate so a bit unfair to tar every Oz Mini enthusiast with the same brush.

[Spider]

Ha ha, I remember the heated discussions back then. Lots of words spoken and opinions aired over such a small part.

Of course it was a vocal minority who participated in the unmoderated debate so a bit unfair to tar every Oz Mini enthusiast with the same brush.

I do apologies to the small handful in Brissy, Sydney and Melbourne who did over the years show themselves to be decent folk.

[SPO41]

Ha ha, I remember the heated discussions back then. Lots of words spoken and opinions aired over such a small part.

Of course it was a vocal minority who participated in the unmoderated debate so a bit unfair to tar every Oz Mini enthusiast with the same brush.

I do apologies to the small handful in Brissy, Sydney and Melbourne who did over the years show themselves to be decent folk.

I recall "Spider" being one of the worst offenders. Under his other name, GTMowog he was firmly involved in many a heated discussion until he was banned from every Australian forum.
Now I see him here, a "respected" member of this forum.

[Peter Laidler]

In defence of Spiderman Chris, I'd say that after living and working in Australia for several years, he is the classic, tell/say-it-as-it-is Aussie. who walks the walk and even better, can equally talk the talk. Regardless of your previous opinion, he's a good firm and solid friend of this forum.

Maybe other forumers who have followed some of Chris's articles and advice might like to come on board with a bit of support

And while we're here, I notice your contributions to the forum against Spiders....... 24 v 4,500. Enough said I feel!

Peter Laidler, Australian Army, 1967-70

[Spider]

I recall "Spider" being one of the worst offenders. Under his other name, GTMowog he was firmly involved in many a heated discussion until he was banned from every Australian forum.
Now I see him here, a "respected" member of this forum.

850man - I wasn't ever banned from any forum. I'd had enough of the infighting, personalities and BS, all nothing in the world to do with Minis.

I am aware however that you have been banned from this forum and have now snuck back in under another handle.