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excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

1999 Defender 110 Td5 SW Caledonian Blue

Coolant leak

Spotted a coolant leak... Well more of a coolant pool on the floor after a 20min run down the motorway.
Traced the coolant leak to the area under the turbo(pooling on the little ledge under the turbo). There appears to be a rubber hose just under/around the turbo area that links two metal pipes, one of which comes across from the back of the head. I think its this pipe that is leaking,

Trying to find a parts diagram that shows this pipe to get a better idea. Any ideas? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

27th Feb 2022 5:56pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5684

2006 Defender 110 Td5 USW Zermatt Silver

Sure it’s not the screw in plug under exhaust manifold?

27th Feb 2022 6:11pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

What screw under the manifold? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

27th Feb 2022 8:04pm

4RF RDS

Member Since: 19 Jul 2015
Location: Ottawa
Posts: 931

2000 Defender 110 Td5 XS CSW Epsom Green

Here’s a coolant parts diagram. https://www.lrworkshop.com/diagrams/land-r...oses_52976

I’d also consider looking harder at the screw plug and the three frost plug things under the manifold.

Click image to enlarge

Click image to enlarge 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

27th Feb 2022 8:30pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5684

excossack wrote:
What screw under the manifold?

Click image to enlarge

27th Feb 2022 9:09pm

4RF RDS

Member Since: 19 Jul 2015
Location: Ottawa
Posts: 931

Yah, that one too! :-0 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

27th Feb 2022 9:42pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5684

The one I have pic’d leaked on my Td5 and showed under turbo, but looks dry screw plug looks dry as heat from manifold dries it. Much easier to spot if no heat shield and/or no webbing in exhaust manifold like I now run.

27th Feb 2022 10:30pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

Cheers for the picture that makes it easier to locate now I know were I am fondling!
After another look and use of my mobile phone, my initial suspect, the pipe does show some pink staining on one of the spring clip (as you look from the passenger side wing, its the left hand spring clip.

Pesky turbo and heat shield are in the way! 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

28th Feb 2022 8:20am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

@4RF RDS which website is the exploded picture of the engine from? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

28th Feb 2022 8:31am

4RF RDS

Member Since: 19 Jul 2015
Location: Ottawa
Posts: 931

Like it says 99 MY workshop manual. If you want a pdf version PM me a valid email address and I’ll send a copy to you. Or go here… https://ovlr.ca/2021/09/04/defender-resources/

2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

28th Feb 2022 4:33pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

Thanks for the link

1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

28th Feb 2022 7:31pm

Screbble

Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2081

2004 Defender 90 Td5 XS CSW Zambezi Silver

Did you get it sorted John?

5th Mar 2022 9:57am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

Update: Took the 110 to my local garage and they found the rubber pipe had a pin hole and was leaking from there. Pipe now replaced. Fingers crossed! 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

7th Mar 2022 10:36pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

Also worth noting, one end of the pipe is wider than the other end. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

8th Mar 2022 10:20am

Screbble

Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2081

excossack wrote:
Update: Took the 110 to my local garage and they found the rubber pipe had a pin hole and was leaking from there. Pipe now replaced. Fingers crossed!

Good result

8th Mar 2022 5:27pm

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