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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
2.4 TDCi water pump blanking plug/cap
Does anyone know a sensible source of a replacement blanking cap for the unused water connector on the 2.4 Puma water pump, the LR part number is PYB500040?

I've just removed my water pump because it appears to be leaking enthusiastically. Positioned where it is, it is completely impossible to see where the leak is coming from until the pump is removed, and I find that the crappy little rubber/plastic cap on the unused vertical port on the plastic manifold on the back of the pump has split. To my surprise, a B***part replacement is around £45 and a genuine one is a stonking £103. For a plastic thing the size of a large thimble this is simply taking the you-know-what. It's more than a new water pump (which comes without the cap) and more than a new water manifold (which also comes without the cap).

The same part is used on the TD5 where it is described as an "oil cooler plug cap".

I don't know if there is a Ford equivalent, it may be on the Transit that the port is used for something.

If anyone has found a sensible alternative, I would love to hear it. I am about to go to try to buy some 22mm ID coolant hose so that I can make up a short hose with a plug in the end.

Bloomin' nuisance! Twisted Evil
Post #991686 6th May 2023 3:53pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3414

Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
Recently I had to fit something similar on my VW... what I did is a short piece of pipe and a pvc barbed plug. Costs in cents. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #991688 6th May 2023 4:04pm
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BrickBox



Member Since: 05 Oct 2021
Location: Wales
Posts: 821

Wales 2008 Defender 110 Puma 2.4 USW Zermatt Silver
Recently had mine changed because of a similar water leak. Just paid the Britpart price and fitted a new Borg & Beck water pump. Peace of mind for the next 5-10 years again I guess. 2008 2.4 110 Utility Station Wagon XS.
Post #991691 6th May 2023 4:50pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
An update, after some further googling, which may be of use to others in the same predicament.

Firstly I have found these Samco Silicone Blanking Caps which appear to be designed for exactly this purpose and are a modest £13.96 +VAT. Much more reasonable.

Secondly, although the part number I quoted above was from Microcat and no supersession is noted, I have found a different part number LR043268 which seems to be the same part, but is a sensible £9.65 +VAT, a rather more credible price. Even B***part lists the two as separate parts, with a similar lower price for this one, and the parts in the images look the same! It is most inexplicable.

Thirdly, and finally for now, I have also found this Twinwoods 4x4 TD5 Silicone Oil Cooler Blanking Plug which is £5.95 inc VAT. and si specifically described as a substitute for the absurdly-priced PYB500040.

So it would seem that there are options which don't necessitate selling a kidney, but unfortunately none is likely to get me back on the road by Monday. For that I have improvised, a short length of heater hose over the unused spigot with a plug of mild steel held n the end with a Jubilee(R) clip.

I hope that this info may save someone else some cash in due course.


Last edited by blackwolf on 6th May 2023 5:38pm. Edited 1 time in total
Post #991697 6th May 2023 5:28pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2415

Chile 2007 Defender 110 Puma 2.4 SW Chawton White
I am curious about the "unused water connector on the 2.4 Puma water pump" Puma 110" SW

.............................................................
Earth first. Other planets later
Post #991699 6th May 2023 5:34pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
What is it about it that makes you curious?

Below is a picture of the waterpump/vacuum pump assembly showing the plastic water manifold on the back of the pump. The port which extends upwards behind the main outlet port (the outlet of course is the alloy one on the actual pump body) is not used and capped off on the Defender, I am not sure about the transit. The other three inlet ports are used.

It is almost impossible to see when the engine is assembled since it is obscured by the mass of hoses in the area. Even with many removed (lower picture) it is still invisible. It is not until the pump is removed from the engine that you can see if it is leaking.







Click image to enlarge


Last edited by blackwolf on 14th May 2023 11:34am. Edited 1 time in total
Post #991700 6th May 2023 5:50pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2415

Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Thx. I was not aware of it. Puma 110" SW

.............................................................
Earth first. Other planets later
Post #991705 6th May 2023 6:28pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
After yet more spendiness I can confirm firstly that the Samco Silicone Blanking Caps at £13.96 +VAT fit perfectly and are a satisfactory alternative to the original part.

Secondly part number LR043268 at £9.65 +VAT appears to be identical in every respect except price to PYB500040 at £103 +VAT and fits perfectly. I recommend the use of this part for both TDCi and Td5 applications.
Post #992293 11th May 2023 7:12pm
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hornet



Member Since: 04 Jan 2010
Location: Western Europe
Posts: 361

Would it be possible not to close this outlet, but to connect it to the other feed pipes using a T-piece/Y-piece in order to increase the cross-section and reduce the pressure losses? Would there be enough space and would this even make sense or would it just be a gimmick?
Post #1035883 28th May 2024 9:26am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Given that the engine is designed to operate without it and does so without any particular issue I'd suggest it would be a waste of time.and it would add more potential leaky points. There isn't a problem to fix.
Post #1035888 28th May 2024 10:47am
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andy63



Member Since: 30 Jun 2023
Location: north east
Posts: 514

United Kingdom 
I have the 2.2l and I seem to remember when I had the cooling hoses adrift there was a connector that sat just behind the water pump.. It was attached to the pump inlet by a very short hose.. It accepted the top radiator hose and I think the outlet of the oil cooler..
I think my pump inlet has a blanked off connector... So I was left wondering why the connector was there given the top radiator hose could be attached directly to the pump inlet where this connector attached anyway, and the oil cooler outlet could connect directly to the blanked water pump inlet connection.. Doing away with that connector..
Its a job on my to do list, to have another look at it and see if what I'm on about is possible?
Post #1035904 28th May 2024 2:03pm
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tom1979



Member Since: 22 Nov 2021
Location: Bedfordshire
Posts: 16

United Kingdom 2000 Defender 90 Td5 HT Caledonian Blue
blackwolf wrote:
Thirdly, and finally for now, I have also found this Twinwoods 4x4 TD5 Silicone Oil Cooler Blanking Plug which is £5.95 inc VAT. and si specifically described as a substitute for the absurdly-priced PYB500040.


I'll have to put the price up now I know they are dual purpose Laughing -------------
Defender 90 Td5
Discovery 2 Td5 Manual
Discovery 2 Td5 Auto
Range Rover Classic 300Tdi Bobtail
Ranger Rover L322 M57
(and more- yes I have a problem!)
Post #1036568 5th Jun 2024 1:08pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20359

United Kingdom 
Borg & Beck pump on mine, just as good as genuine I think LR’s is over priced frankly.
IIRC Approx 3x the price, and this is providing you fit yourself.

Good find BW with the blacking cap, I know the one that you mean.
I used to have an old pump lying around with a spare blanking plug on the plastic manifold, I git rid of it though as the manifold was leaking anyway.
Should have took the blank off really. $W33T $0U7H3RN $UG4R
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Post #1036591 5th Jun 2024 5:00pm
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