Bye bye Volvo now sold

[windy millar]

The fuel pumps do give hints that they are on the way out by putting metal filings through the system and yes they will cause injector failures. The receipt for replacement injectors states that fuel filter was replaced and the old one checked for signs of contamination of metal particles, fuel lines flushed, pump seals replaced and pump checked. This was in July 2015 and the bill was eye watering! The work was done by Injection Development in Canterbury who are an approved Delphi specialist so I think they may have seen the odd Tdci in their time 🤔. As for sorting the body of the T4, it's difficult to justify spending the value of the car on repairs even if it is excellent mechanically. Now if I believed that they may get the status of an 850r in time, I may feel it's worth the spend but let's face it, they won't will they! Maybe when there is 20 left they will and if I break mine, I will help the mint ones on their journey......

[skyship007]

Originally Posted by windy millar

The fuel pumps do give hints that they are on the way out by putting metal filings through the system and yes they will cause injector failures. The receipt for replacement injectors states that fuel filter was replaced and the old one checked for signs of contamination of metal particles, fuel lines flushed, pump seals replaced and pump checked. This was in July 2015 and the bill was eye watering! The work was done by Injection Development in Canterbury who are an approved Delphi specialist so I think they may have seen the odd Tdci in their time 🤔. As for sorting the body of the T4, it's difficult to justify spending the value of the car on repairs even if it is excellent mechanically. Now if I believed that they may get the status of an 850r in time, I may feel it's worth the spend but let's face it, they won't will they! Maybe when there is 20 left they will and if I break mine, I will help the mint ones on their journey......

No many owners check for metal particles in the injector screen filters. They don't blow out injector tips, cos the German steel used is far stronger than any other steel. Not changing the fuel filter or using one not made in Germany to Bosch or Ford OEM standards causes ultra fine Silica particles in the fuel to wear out the tips. The HP pump is designed to match the life of the injectors in that common type of failure.
If the engine was seriously overheated a few times, or bad oil used on a regular basis, that can can the HP fuel pump to fail well before the injector tips.

Buying new injectors is a big waste of money, it's much cheaper to get good used ones and then get an injection shop to check their spray pattern. If they fail, most Scrap yards offer a 3 month warranty.

I've delt with dozens of both HP pump and injectors. One pump on a Porsche did fail from overheating and another on a Ford diesel from non OEM oil filters (Frams), but all the rest were from bad fuel filters, apart from one that was not run for 5 years.

The main symptom of worn injectors tends to be smoke at hot idle. It will not be visible until you walk around the back and is easily confused with oil smoke until sniff tested. Tend to result in emissions failures, poor fuel economy and contamination of the oil. No real effect on starting or power until very bad.

[windy millar]

Really sorry Skyship but I think you'll find British Steel is the main man all day long! German manufacturers are just good at giving everyone the impression of superiority!

Besides that, all work on the X Type has been carried out by main dealers or Jaguar specialists. I would be inclined to agree that new injectors are not always needed and can be reconditioned for less than half the cost but some owners who rely on the car for their business will do what it takes to keep it on the road, the previous owner runs a fibre optic company and the reason for selling was to lose some money on a new car and the Jaguar is now 10 years old, he has maintained the car regardless of the cost involved.

[skyship007]

Originally Posted by windy millar

Really sorry Skyship but I think you'll find British Steel is the main man all day long! German manufacturers are just good at giving everyone the impression of superiority!

Besides that, all work on the X Type has been carried out by main dealers or Jaguar specialists. I would be inclined to agree that new injectors are not always needed and can be reconditioned for less than half the cost but some owners who rely on the car for their business will do what it takes to keep it on the road, the previous owner runs a fibre optic company and the reason for selling was to lose some money on a new car and the Jaguar is now 10 years old, he has maintained the car regardless of the cost involved.

Bosch make the injectors on every good modern engine, petrol or diesel and they only use German steel. They were way ahead of us even in WW2, but the US did catch up to some extent as regards diesel injectors. They was because of the poor lubricity of US diesel.

There are only 4 companies left in the US making top quality steel suitable for injectors, two in Germany and none in the rest of the UK. The same companies also make the best bearings.

Sorry I though we were talking about a V40, not a Jag. If it was under warranty, new injectors and pump were a good move.