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MC84



Member Since: 22 May 2016
Location: Near Bristol
Posts: 360

United Kingdom 2001 Defender 90 Td5 HT Chawton White
TD5 2001 10J engine None air com
Hi, I have a water leak between the engine block and the assembly that directly bolts to the engine that houses the water pump. I’ve not been able to find any part details for this housing or what I think may be a seal of some sort the goes between the engine and this large assembly. As stated this assembly houses the water pump and has an idler bolted to it for the serpentine belt and I think the power steering pump. It’s a none air con truck. Does it in fact have a seal i can get hold of between these two parts? Any help would be much appreciated. Mike

Hard Top 90 TD5 2001
Ford 100e 1959
www.youtube.com/mikemakesit
Post #1049786 25th Oct 2024 6:16pm
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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1624

Northern Ireland 2006 Defender 90 Td5 HT Bonatti Grey
Are you sure the water isn’t coming out of the weep hole in the bottom for the water pump?
Post #1049791 25th Oct 2024 7:15pm
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MC84



Member Since: 22 May 2016
Location: Near Bristol
Posts: 360

United Kingdom 2001 Defender 90 Td5 HT Chawton White
I’m fairly sure it’s at the back of the casting that houses the pump as it’s higher than the weep hole, but I can double check but not for a couple of days. My thinking was water will tend to go down rather than up. The red pipe directly above the casting was very crusty so I cleaned this up as it was leaking from here so I thought I had solved the problem. Is sorted the pipe out but I still have a leak in the same area. Mike

Hard Top 90 TD5 2001
Ford 100e 1959
www.youtube.com/mikemakesit
Post #1049799 25th Oct 2024 8:02pm
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34064



Member Since: 12 Dec 2023
Location: South Central
Posts: 184

United Kingdom 2003 Defender 110 Td5 HT Alaska White
There is a O ring that goes between the accessory block and the main engine block but if your taking it off you are probably better off changing the water pump as it's alot easier when it's off. There is also a coolant core plug behind the exhaust manifold too that can leak but that tends to burn off with the exhaust heat 110 Td5 Ex Utilities slowly converting into a pop top camper one day

Build thread:https://www.defender2.net/forum/post1024784.html#1024784
Post #1049806 25th Oct 2024 8:40pm
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MC84



Member Since: 22 May 2016
Location: Near Bristol
Posts: 360

United Kingdom 2001 Defender 90 Td5 HT Chawton White
Great info thanks. Any idea of the O ring part number? Mike

Hard Top 90 TD5 2001
Ford 100e 1959
www.youtube.com/mikemakesit
Post #1049814 25th Oct 2024 9:57pm
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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1624

Northern Ireland 2006 Defender 90 Td5 HT Bonatti Grey
ERR6711

I would do LVJ000010 while you’ve the system drained on the coolant elbow -top hose.

You can buy the three water pump seals as a set PFQ10001L you will still need ERR6711
Post #1049817 26th Oct 2024 12:24am
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MC84



Member Since: 22 May 2016
Location: Near Bristol
Posts: 360

United Kingdom 2001 Defender 90 Td5 HT Chawton White
Thanks for the info NickMc Thumbs Up Mike

Hard Top 90 TD5 2001
Ford 100e 1959
www.youtube.com/mikemakesit
Post #1049820 26th Oct 2024 1:59am
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