Primus Pump Lucky I Did Not Need It

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NATURAL ANKLING
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Primus Pump Lucky I Did Not Need It

Postby NATURAL ANKLING » 24 Feb 2020, 7:48pm

Hi,
On my trip down under to the shaded shores of cornwall :?
I took my old steel hack from 1983, Koga-Miyata GentsRacer-aero, only the frame and frame pump was original, all other parts are replaced with NOS, mostly gleaned from overseas.

I did not use the frame pump to inflate the tyres but home track pump before I set off and did not use air at all over a week, I know the pump works and seals on the presta valve, but never tested it to full 120 psi.
Decided to test it out at how the other day, Bang :shock: The screw cap plastic sheared off above the thread at about 100 psi.
I think I remember doing a repair a few years ago with super glue, I just the other day superglued it together to measure it up make a sketch to hunt down a replacement screw cap, then I found some NOS pump ends on ebay.
Ok so my parts are past their sell by date.
If the ebay NOS parts are unused I only need the screw cap and use the rubber too maybe.
But anyone knowledge of how the pump end secures to the aluminium body?
There does not seem much to bite on the nos pump end, whats the ident in my aluminium body do? Its not going to bite on the pump end?
2020-02-24_192842.jpg

2020-02-24_192409.jpg

2020-02-24_192318.jpg
CAP FRACTURED ABOVE THE KNURL AT LINE

2020-02-24_192738.jpg
EBAY NOS PARTS LOOK IDENTICAL

Image00007dcb.jpg
EBAY NOS ITEM SHOWING RUBBER VIEW


Edited - this is the actual pump but mine is black-
https://www.ebay.co.uk/itm/Vintage-Prim ... 3588463866
NA Thinks Just End 2 End Return + Bivvy
You'll Still Find Me At The Top Of A Hill
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NATURAL ANKLING
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Re: Primus Pump Lucky I Did Not Need It

Postby NATURAL ANKLING » 24 Feb 2020, 7:53pm

Image Attachments
EBAY PRIMUS PUMP 2.jpg
EBAY PRIMUS PUMP.jpg
NA Thinks Just End 2 End Return + Bivvy
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RickH
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Re: Primus Pump Lucky I Did Not Need It

Postby RickH » 24 Feb 2020, 9:06pm


£115 (+p&p) for an old pump!!

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NATURAL ANKLING
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Re: Primus Pump Lucky I Did Not Need It

Postby NATURAL ANKLING » 24 Feb 2020, 9:25pm

Hi,
RickH wrote:

£115 (+p&p) for an old pump!!

Antique init :)
There is a price-er one :P
NA Thinks Just End 2 End Return + Bivvy
You'll Still Find Me At The Top Of A Hill
Please forgive the poor Grammar I blame it on my mobile and phat thinkers.

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RickH
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Re: Primus Pump Lucky I Did Not Need It

Postby RickH » 24 Feb 2020, 9:33pm

NATURAL ANKLING wrote:Hi,
RickH wrote:

£115 (+p&p) for an old pump!!

Antique init :)
There is a price-er one :P

I've got a nice bridge to sell if you're interested...

rjb
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Re: Primus Pump Lucky I Did Not Need It

Postby rjb » 24 Feb 2020, 9:37pm

Those screw on caps may be a standard item across a range of cheap plastic pumps. I had a similar failure on a pump which came with a new bike. Fortunately it was a MTB wheel which needed pumping on the road following a visitation :(
The pump held together with hand pressure to get enough air in to get me home. I'll have a look tomorrow and measure up if I have any. :wink:
That eBay one you pictured looks like it is meant to screw onto a continental type pump which had an external male brass threaded coupling unlike the more common female threaded couplings on UK pumps.
At the last count:- Focus Variado, Peugeot 531 pro, Dawes Discovery Tandem, Dawes Kingpin, Raleigh 20, Falcon K2 MTB dropped bar tourer, Longstaff trike conversion on a Falcon corsa. :D

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NATURAL ANKLING
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Joined: 24 Oct 2012, 10:43pm
Location: English Riviera

Re: Primus Pump Lucky I Did Not Need It

Postby NATURAL ANKLING » 24 Feb 2020, 10:02pm

Hi,
The OD of thread is measured at about 19 mm on the primus.
I have a few other pumps with no lever and one with a lever, they are smaller and different thread too.
I will probably buy one of the pump heads I shown up thread, and hope the quality is up to scratch.
Also look for another frame pump, needs to be 120 psi, the Raleigh also has a frame pump with a compression lever (circ 1996), now they are out of fashion today?
But there are many frame pumps online.
I am a bit old fashioned so I will probably stick with a frame pump.

Thanks for the offer rjb :wink:
NA Thinks Just End 2 End Return + Bivvy
You'll Still Find Me At The Top Of A Hill
Please forgive the poor Grammar I blame it on my mobile and phat thinkers.

rjb
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Re: Primus Pump Lucky I Did Not Need It

Postby rjb » 25 Feb 2020, 5:57pm

Checked my box of spare pumps but I couldn't find any with those screw on caps. Plastic pumps were pretty common and supplied with bikes maybe 20 years ago. Most had those screw on plastic caps. I suspect they had failed in the manner yours had so have been binned. :(
At the last count:- Focus Variado, Peugeot 531 pro, Dawes Discovery Tandem, Dawes Kingpin, Raleigh 20, Falcon K2 MTB dropped bar tourer, Longstaff trike conversion on a Falcon corsa. :D

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NATURAL ANKLING
Posts: 11367
Joined: 24 Oct 2012, 10:43pm
Location: English Riviera

Re: Primus Pump Lucky I Did Not Need It

Postby NATURAL ANKLING » 25 Feb 2020, 7:56pm

Hi,
rjb wrote:Checked my box of spare pumps but I couldn't find any with those screw on caps. Plastic pumps were pretty common and supplied with bikes maybe 20 years ago. Most had those screw on plastic caps. I suspect they had failed in the manner yours had so have been binned. :(

Thanks rjb for looking :)
I am a stickler for keeping things original, but I will as said probably source a new modern frame pump as well as the part I listed in my opening post.
NA Thinks Just End 2 End Return + Bivvy
You'll Still Find Me At The Top Of A Hill
Please forgive the poor Grammar I blame it on my mobile and phat thinkers.