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ashfordsv



Member Since: 13 Mar 2009
Location: Wicklow
Posts: 82
Ireland 2006 Defender 90 Td5 SW Java Black
Cracked Head?

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Can anyone tell me if the following symptoms are the sign of a cracked head?
While driving the temp guage flicked up to the red and back to normal a few times.The heater is only blowing cold air and there is fluid leaking from what I think is part of the heat exchanger as can be seen in the picture!
Also would it be ok to still drive or am I better waiting to get it seen to? Thanks in advance
Post #891112 13th Mar 2021 3:26pm
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Silvertoolbox



Member Since: 13 Oct 2018
Location: Westhill
Posts: 43
United Kingdom 
Certainly wouldn't run it without further investigation.
Td5 head crack more likely into / from exhaust.
I'm thinking head gasket?
When you squeeze the top hose does it feel like filled with coolant. If not then likely air locked too. Ex scottish & southern 110 Td5 van (shed) with PTO driven winch (L-R special vehicles)
Before that, Disco 1, Freelander 1, 26105382 80" with a 1600cc (not much slower)
Post #891146 13th Mar 2021 5:54pm
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ashfordsv



Member Since: 13 Mar 2009
Location: Wicklow
Posts: 82
Ireland 2006 Defender 90 Td5 SW Java Black
Thanks for the reply, I decided not to drive it. I'll test the top hose in the morning Thumbs Up
Post #891154 13th Mar 2021 6:21pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 896
United Kingdom 2004 Defender 90 Td5 CSW Santorini Black
Looks like the exhaust manifold is wet on the edge.

Could be a simple case of replacing the coolant housing (the piece the top hose and temperature sensor attach to) and/or top hose. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #891160 13th Mar 2021 6:52pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5683
2006 Defender 110 Td5 USW Zermatt Silver
Remove the top hose, and you may find one of two things. As soon as you compress the spring clip, it falls apart, and that’s why you have a leak. Or, remove the top hose and you find that the spigot that you attach the pipe too has turned to some porous white ploppy poop. (This is what happened to my best mates Td5)

Worth checking Thumbs Up Thumbs Up
Post #891196 13th Mar 2021 8:17pm
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diesel_jim



Member Since: 13 Oct 2008
Location: hiding
Posts: 6092
United Kingdom 2006 Defender 110 Td5 SW Epsom Green
Mine drips from that top hose as well. I fitted a second jubilee clip and it seemed to stop it.
Post #891295 14th Mar 2021 10:03am
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 930
Canada 2000 Defender 110 Td5 XS CSW Epsom Green
Agree with above suggestions, sounds like a leak and now an air lock. This could cause the variable temp changes as steam increases temp with the air in the system.

Good luck 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)
Post #891371 14th Mar 2021 3:49pm
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SteveT247



Member Since: 21 Feb 2011
Location: Central
Posts: 491
England 2002 Defender 90 Td5 XS CSW Bonatti Grey
There is a coolant plug/bung in the head. These can leak or in my case, come loose. Cheap fix but a bit of a faff tbh (not for me though, a mate did it Laughing ). Also worth checking.



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All cleaned up


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Post #891383 14th Mar 2021 4:58pm
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ashfordsv



Member Since: 13 Mar 2009
Location: Wicklow
Posts: 82
Ireland 2006 Defender 90 Td5 SW Java Black
Thank you all for the replies, it turned out to be a broken clip, thus causing the leak Thumbs Up

I feel a bit silly that it was something so simple, but I'm starting to panic more as she's done 340k kilometres and i'm waiting for terminal problems. Surprised
Post #891623 15th Mar 2021 6:06pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5683
2006 Defender 110 Td5 USW Zermatt Silver
Great news. Nice that’s it’s something simple. Got to love the Td5, it’s a brilliant engine Thumbs Up Thumbs Up
Post #891624 15th Mar 2021 6:24pm
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SteveT247



Member Since: 21 Feb 2011
Location: Central
Posts: 491
England 2002 Defender 90 Td5 XS CSW Bonatti Grey
Good news mate Thumbs Up
Post #891635 15th Mar 2021 7:27pm
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familymad



Member Since: 13 Dec 2011
Location: Bucks
Posts: 3481
 2016 Defender 130 Puma 2.2 HCPU Santorini Black
landy andy wrote:
Great news. Nice that’s it’s something simple. Got to love the Td5, it’s a brilliant engine Thumbs Up Thumbs Up


Still my fav LR engine noise 1951 80" S1 2.0
1995 110 300TDI
1995 90 300TDI
Post #891748 16th Mar 2021 8:38am
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AT1963



Member Since: 08 Jul 2020
Location: Leicestershire
Posts: 148
United Kingdom 2006 Defender 90 Td5 Black LE Java Black
You may be surprised how many miles the TD5 will do if looked after Very Happy
Post #892134 17th Mar 2021 4:38pm
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