my l200 is struggling to start when left over night or all day at work there's white smoke no signs of a leak and I have changed the copper washers on the return pipe of the injection pump any idea what this could be ??

Glow plugs need checking/renewal
Fuel is draining, try fitting a non return valve before the filter.

Sounds a bit like mine before I changed the glow plugs

Quote: Major Malfunction wrote in post #2

---

Fuel is draining, try fitting a non return valve before the filter.

---

Quote: Heathen wrote in post #4

---

Quote: Major Malfunction wrote in post #2

---

Fuel is draining, try fitting a non return valve before the filter.

---

@Major Malfunction - Have been wondering about the fuel draining back to the tank - mine had this problem badly when the fuel filter wasn't fitted right (someone had put in a non return valve that didn't work, now removed). Even now it seems to do it very slightly. I can't see how this is possible though unless there is an air leak somewhere between the filter and the injectors?I have a slight misfire and bit underpowered - any thoughts?

---

There's no obvious leaks anywhere, stack pipes were a bit rusty so replacing them at the moment, but still does it when running off a can going straight to the injector pump. Have read of a few people with this exact problem, but never found a solution. Will start a new thread when I have a bit more time to write down a full list of symptoms and what I have checked.

I installed clear pipes and found a leak at injector pump were leak of goes in and return pipe comes out it was 2 copper washers as I noticed it dripping it like mad but that's fixed I think it could be either buzz bar or plugs