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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 151
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
O-rings as well, in my experience.
Post #1055832 29th Dec 2024 12:19pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2448
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Sure. I was just trying to highlight the difference between the 1st and final type seal "generation". Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1055833 29th Dec 2024 12:24pm
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MatLandy



Member Since: 11 Sep 2020
Location: Paris
Posts: 191
France 2008 Defender 110 Puma 2.4 CSW Zermatt Silver
jbcollier wrote:
Here is a video on pump disassembly. You first need to measure how far the pulley is pressed onto the shaft before taking it apart. You absolutely, 100%, need a press.



Just to comment on this, contrary to what the guy is doing in the video, you should not separate the pulley from the shaft as on reassembly you will have serious difficulties to position the pulley exactly in the same position even if you take necessary measurements beforehand. It is much easier to separate the inner part from the shaft as it sits on the part of the shaft with a smaller diameter, so no measurement required on reassembly.

Following picture (not mine though) can help to understand what I'm trying to explain:

Click image to enlarge

Just changed the seal on mine this afternoon. Decided to attempt to change the seal this time as changing the pump is a bit of a hit and miss with the latest pump being a genuine one and failing after only 3 months of service.

/Mat
Post #1058475 24th Jan 2025 4:12pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2448
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Thx. Do you have the p/n or specs of the seals? Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1058491 24th Jan 2025 6:24pm
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MatLandy



Member Since: 11 Sep 2020
Location: Paris
Posts: 191
France 2008 Defender 110 Puma 2.4 CSW Zermatt Silver
Well, the seal that came out was a single lip seal and I replaced it with a double lip one, as suggested by another forum member here https://www.defender2.net/forum/topic62443.html
I also followed the advice to go for a double lip FKM - FPM - Viton® seal with an internal stainless steel spring instead of standard Nitrile (NBR) seal.

New seal: OD 32mm, ID 20mm, thickness 7mm, double lip
Sorry in french, but this is the one that went in : https://www.123roulement.com/joint-etanche...0x32x7-fpm

Let's see how long this keeps the oil inside Laughing

/Mat
Post #1058498 24th Jan 2025 7:05pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2448
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Thanks Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1058500 24th Jan 2025 7:16pm
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