dogdog1

Of course it was the injection pump , the head had broken internally and so it ceased to pump . All fixed now , hopefully forever !

I replaced the lift pump this morning , it works but still no diesel out of the delivery valves when engine is cranked . Can't think of anything else to try so when my pump pulley holding tool arrives I'll remove the injection pump and take it to be checked over . Thanks for all the advice , I'll post an update when the issue is resolved .

I thought when you removed the spring and plunger you were just left with a hole . Is that not the case ?

Removed lift pump , seemed to work very well off the car ! Will be tomorrow before I get the chance to put on the new one .

I tried that , and removed the spring and plunger just for good measure .

Interesting that you should say that , the lift pump has a slight leak . Could this be significant ? I've also occasionally heard a " chickachickachicka " sound out of it lately when under load , but since it started and ran so well I didn't attach too much importance to it . I'll replace the lift pump tomorrow , just to eliminate that .

It's true , there isn't . I just ended up cranking diesel out of the pump timing hole when I removed the bolt . But that doesn't explain the breakdown . I believe whatever caused it to breakdown is the same thing preventing it starting . Whatever that is .

What was described as a " bleed bolt " in an article on the Bosch VE pump turns out to be where you insert a dial gauge to set up the pump .. I think . As for the lift pump , it will deliver fuel to the detached inlet pipe banjo when cranked on the key , but only pumps fuel out the filter bleed when hand pumped .

As far as I can tell it is full of diesel after cranking . If I remove the shutoff solenoid the hole is full of diesel . If I take out the bleed bolt in the face of the pump between the delivery valves and crank the engine , lots of diesel comes out . I undid the banjo bolt at the filter inlet and fuel comes out when I crank . If I loosen the bleed screw on the filter housing and hand crank the lift pump I soon have fuel squirting out , but when I crank the engine that doesn't happen .

No , I mean when I have pushed diesel through with the lift pump handle and bled the injection pump by cranking with the bleed screw loosened til diesel poured out then tightening the bleed screw and cranking again . I have also replaced the leaky head pump seal with a new viton one , as per the YouTube video by Dieselgeek , and that went in very nicely . I'm beginning to wonder if the injection pump is knackered .

I get your meaning now . Lift pump works , it will push diesel through the filter and into the injection pump . Just nothing comes out of where the injector pipes attach , either at the outlet valve or the injector .

Do you mean between injection pump and injector ?

Hi , Hope some one here can help with this . '95 Defender 110 300tdi was going along very nicely when suddenly began losing power as if it had run out of diesel , but plenty in tank . Got to a grass verge before it died altogether , and discovered no diesel getting to injectors . Checks I've done since getting it back home are as follows . Lift pump brings diesel to filter and into injection pump ( which had been sucked dry presumably by the action of the engine as it tried to feed itself ) . Cranking the engine with the leak back tube detached from the pump will cause diesel to spurt out of the pump . I have live at the shutoff solenoid and it clicks if I flick the detached connector against it with the ignition on , but no click is heard if I just turn on the ignition . I have removed the spring and plunger but it makes no difference . The rockers can be seen to move when cranked and engine sounds normal on the turn . Any ideas anyone ?

Hi , Need a bit of advice here . Does anyone know the actual thread size of the bolt that goes into the threaded hole to the water jacket in a 300tdi cylinder head just above one the ports along the exhaust side ? When I tried to remove the one from my old head it sheared off .