Svar till: Bio Fuel Damage

Forum TEKNIK Teknikspalten – Allmänt om teknik Bio Fuel Damage Svar till: Bio Fuel Damage

Michael HandsMichael Hands

Hi Peter,

Yes a TD5, I had the cam cover off recently changing the injector loom. I could not see any leaks then, but I did have to change the fuel regulator which was leaking. I plan to change the fuel filter, again, and will cut it open to see what I can see. When I changed the fuel pump I cut an access hole through the floor so now at least I can remove the fuel pump in about 30 mins so plan to lift it to see if the sludge is back. The Defender really is a gift that keeps giving, always something new : )

Thanks for the sound advice, I would never have suspected the injectors.

All the Best Michael

Hi Michael,
It’s a td5?
That black sludge is common in Td5 pumps due to the construction of the engine, especially when the injector seals are starting to leak. i had a cusomter analyzing this many years ago as he thought it was an issue with the fuel from OKQ8 (this was in 2003-2004 something) and came back with carbon soot from combustion. Only ever seen this on Td5 engines. the other sludge you get from water and RME looks different.
So the issue is more likely to be the seals leaking a little compression and soot passed the injectors in to the fuel channel and eventually back to the tank where it accumulates and get stuck in the pump strainer. If you clean it out you might be ok for a long time, but if you notice it comes back quickly it is time to replace the injecotrs. If ignored in the long run it will clogg up the strainer and damage the fuel pump. And in some cases there will be a lot of air in the fuel system and the engine will not start unless you bleed it repeatedly every time you start it 🙂

You do not own your Land Rover, you just maintain it for future generations.