Diesel oil cooler leak

Rogue · 29th January 2023, 22:27

I have a fuel leak coming from the diesel cooler by the o/s rear wheel. How easy is it to bypass the cooler and send the feed straight to the fuel tank?
It's going in next week to be looked but if there is a relatively straight forward fix to tide it over until then i'd prefer not to be losing fuel if i can help it!

Mike Noc · 29th January 2023, 23:18

Is it the heat exchanger that is leaking or the thermostat?

Arctic · 29th January 2023, 23:26

Quote:

Originally Posted by Rogue

I have a fuel leak coming from the diesel cooler by the o/s rear wheel. How easy is it to bypass the cooler and send the feed straight to the fuel tank?
It's going in next week to be looked but if there is a relatively straight forward fix to tide it over until then i'd prefer not to be losing fuel if i can help it!

Hi Pete.
Give the area a good clean and check where it's leaking from sometimes it can be the hose has flared on the end and just needs trimming.

1

Rogue · 29th January 2023, 23:38

I'll try and have a look underneath tomorrow but unfortunately it won't be in daylight due to work

If it isnt something simple like a leaking pipe which do you need to connect to bypass the whole operation and send the fuel back to the tank?

Even if i am unable to get under it this week at least i can help the garage with the info as i am aware the radiator appears to be no longer available so if that has gone i wont have much other choice but to bypass.

Mike Noc · 30th January 2023, 08:05

A bit more info on the LP fuel circuit here: https://www.the75andztclub.co.uk/for...d.php?t=172055

Mike Noc · 30th January 2023, 08:07

Later cars are slightly different - do you have an under bonnet fuel pump?

Rogue · 30th January 2023, 08:43

Quote:

Originally Posted by Mike Noc

Later cars are slightly different - do you have an under bonnet fuel pump?

Hi Mike

Mine is a Cowley so has the underbonnet pump and presumably the 4 pipe cooler system.
Cheers
Pete

Arctic · 30th January 2023, 09:56

If its the thermostat part then these will fit below.

https://www.ebay.co.uk/itm/402298551190

Also you can get the bracket which is stainless steel from Ben on here if he still has some, he had them made up, they can corrode and make certain parts fail.

1

2

You can get the later fuel cooler for 2004, expensive though.
https://www.ebay.co.uk/itm/354539643063

But as i said check those hose ends for flaring.

Rogue · 30th January 2023, 17:17

Thanks for the links however it was a bit too dark when i finished work even with a torch to see where the issue is so it will have to wait until Mon now when it us up on the ramp. I don't really want to be buying parts just in case so fingers crossed it will be a pipe issue so they can fix it while it is in.

trikey · 30th January 2023, 20:37

It'll be the solenoid valve rather than the cooler Pete, an easy job if its up on a ramp, some fuel hose and a few jubilee clips will have it sorted.

Sent from my SM-G780G using Tapatalk

29th January 2023, 22:27	#1
Rogue I really should get out more....... 75 CDT SE 160 Saloon Join Date: May 2017 Location: Thorpe St Andrew, Norwich Posts: 2,671 Thanks: 1,386 Thanked 1,096 Times in 774 Posts	Diesel oil cooler leak I have a fuel leak coming from the diesel cooler by the o/s rear wheel. How easy is it to bypass the cooler and send the feed straight to the fuel tank? It's going in next week to be looked but if there is a relatively straight forward fix to tide it over until then i'd prefer not to be losing fuel if i can help it! __________________ Glutton for punishment --- Previously ... 2.6 SD1 x 2, 3.5 SD1, 820S, 820Si x2, 216 Gsi, 220T saloon, 414, 45 1.4 x2 and now a Cowley 75 CDT

29th January 2023, 23:38	#4
Rogue I really should get out more....... 75 CDT SE 160 Saloon Join Date: May 2017 Location: Thorpe St Andrew, Norwich Posts: 2,671 Thanks: 1,386 Thanked 1,096 Times in 774 Posts	I'll try and have a look underneath tomorrow but unfortunately it won't be in daylight due to work If it isnt something simple like a leaking pipe which do you need to connect to bypass the whole operation and send the fuel back to the tank? Even if i am unable to get under it this week at least i can help the garage with the info as i am aware the radiator appears to be no longer available so if that has gone i wont have much other choice but to bypass. __________________ Glutton for punishment --- Previously ... 2.6 SD1 x 2, 3.5 SD1, 820S, 820Si x2, 216 Gsi, 220T saloon, 414, 45 1.4 x2 and now a Cowley 75 CDT

30th January 2023, 09:56	#8
Arctic Give to Learn Freelander 2 Join Date: Aug 2010 Location: West Midlands Posts: 18,743 Thanks: 1,155 Thanked 6,407 Times in 3,874 Posts	If its the thermostat part then these will fit below. https://www.ebay.co.uk/itm/402298551190 Also you can get the bracket which is stainless steel from Ben on here if he still has some, he had them made up, they can corrode and make certain parts fail. 1 2 You can get the later fuel cooler for 2004, expensive though. https://www.ebay.co.uk/itm/354539643063 But as i said check those hose ends for flaring. __________________ Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise "

30th January 2023, 17:17	#9
Rogue I really should get out more....... 75 CDT SE 160 Saloon Join Date: May 2017 Location: Thorpe St Andrew, Norwich Posts: 2,671 Thanks: 1,386 Thanked 1,096 Times in 774 Posts	Thanks for the links however it was a bit too dark when i finished work even with a torch to see where the issue is so it will have to wait until Mon now when it us up on the ramp. I don't really want to be buying parts just in case so fingers crossed it will be a pipe issue so they can fix it while it is in. __________________ Glutton for punishment --- Previously ... 2.6 SD1 x 2, 3.5 SD1, 820S, 820Si x2, 216 Gsi, 220T saloon, 414, 45 1.4 x2 and now a Cowley 75 CDT

30th January 2023, 20:37	#10
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,802 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	It'll be the solenoid valve rather than the cooler Pete, an easy job if its up on a ramp, some fuel hose and a few jubilee clips will have it sorted. Sent from my SM-G780G using Tapatalk __________________ Lest we forget..

29th January 2023, 23:18	#2
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,566 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Is it the heat exchanger that is leaking or the thermostat?

30th January 2023, 08:05	#5
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,566 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	A bit more info on the LP fuel circuit here: https://www.the75andztclub.co.uk/for...d.php?t=172055

30th January 2023, 08:07	#6
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,566 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Later cars are slightly different - do you have an under bonnet fuel pump?