DEFENDER2.NET - View topic - COOLANT leak with no hole..

↓ Advertise on Defender2 ↓

Home · FAQ · New Posts · My Posts · PMs · Search · Members · Map · Calendar · Profile · Donate · Register · Log In

Home > Td5 > COOLANT leak with no hole..

Page 1 of 1

Print this entire topic ·

ttuck3r

Member Since: 03 Feb 2013
Location: Dunning Scotland
Posts: 277

COOLANT leak with no hole..

So today i was running late for work and the defender got thumped the whole way to work, at the end of the day i noticed a small puddle of coolant under the engine. popped the bonnet and there was coolant sitting on the right of the engine and about 300ml missing out the bottle.
Here's the conundrum, there is no trace of where its come from, i've put a pressure tester on the expansion bottle and taken it up to 13 bar with no leaks and ive topped her up and driven home with no recurrence.

This is where the coolant was sitting.

Click image to enlarge

20th Jun 2013 9:31pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5800

2006 Defender 110 Td5 USW Zermatt Silver

The small hose clip in that photo looks suspect, also check the screw in core plug that goes into the side of the cylinder head in between exhaust manifold webs.

Shown here
http://www.bing.com/images/search?q=td5+en...edIndex=16

Andy

20th Jun 2013 9:34pm

ttuck3r

Member Since: 03 Feb 2013
Location: Dunning Scotland
Posts: 277

Thanks i will have a wee look at the core plug in the morning..

20th Jun 2013 9:39pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5800

When you look at the core plug check for signs of water, and its marks, as it is unlikely you will see water as heat from exhaust dries it, so goes unnoticed.

20th Jun 2013 9:42pm

johnnyd

Member Since: 13 Apr 2013
Location: Chippenham
Posts: 1006

2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey

Is that an EGR pipe I see in that photo

JD 2008 TDCi 2.4 XS CSW

20th Jun 2013 9:47pm

ttuck3r

Member Since: 03 Feb 2013
Location: Dunning Scotland
Posts: 277

johnnyd wrote:
Is that an EGR pipe I see in that photo

JD

It is indeed, i'm in the process of looking up which EGR blanking kit is best aluminium vs steel and pricing.

20th Jun 2013 9:59pm

WarPig

Member Since: 04 Dec 2009
Location: Sheffield
Posts: 1748

1996 Defender 110 300 Tdi USW Bonatti Grey

When I had a similar problem with my 300tdi it was coming from the water pump gasket. The water pump can be found behind one of the belt pulleys.

If you pop your bonnet with the engine running, pull on the accelerator cable and look for fine splashes/spray of coolant. If you cant see it spraying out, look for splashes on other engine components around the water pump.

Or close the bonnet, rev engine with pedal, lift bonnet and look under the actual bonnet where it may have splashed up onto the underside.

Worth a try.

20th Jun 2013 10:08pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6124

My 90 dribbles from exactly the same place.... i've tried re-seating the pipe (it was damp on the bottom of it, so has to be where the clip is)

Might change the clip for a proper jubilee clip that can be done up tighter.

21st Jun 2013 6:57am

Page 1 of 1

All times are GMT

Jump to

< Previous Topic | Next Topic >

Posting Rules

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum