300tdi Injection pump leak from the throttle spring pivot

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neilly

Well-Known Member
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Oxfordshireness
Hi ,

As per the title, went out this morning to finish washing the crud from Salisbury off of the 90 and found a wee bit of diesel underneath.

On investigation I have found this leak from the injection, it is welling up from the outside of the injector pump throttle spring pivot point. see photo.

Any ideas where I can get a repair kit? any recommendations?, Anyone know how involved it is to fix it? can it be done in situ or is it pump out?

Cheers
IMG_0747.JPG
 
So , just a little update apparently it is a 200tdi fuel pump.........


Just been and got a repair kit from Bob Becks in Warwick.

Cheers
 
Hi ,

As per the title, went out this morning to finish washing the crud from Salisbury off of the 90 and found a wee bit of diesel underneath.

On investigation I have found this leak from the injection, it is welling up from the outside of the injector pump throttle spring pivot point. see photo.

Any ideas where I can get a repair kit? any recommendations?, Anyone know how involved it is to fix it? can it be done in situ or is it pump out?

CheersView attachment 137318

Does the kit include the bush as well as the o rings? I did this with mine about 12 months ago for the same reason. There is a very good write up that I followed I will see if I can find it for you. It can all be done in situ but it is very important to keep things clean so nothing can drop into the pump for obvious reasons. Flossie is correct that things need to go back in the same place otherwise the rev range and idle etc will not be correct.
 
Hi ,

As per the title, went out this morning to finish washing the crud from Salisbury off of the 90 and found a wee bit of diesel underneath.

On investigation I have found this leak from the injection, it is welling up from the outside of the injector pump throttle spring pivot point. see photo.

Any ideas where I can get a repair kit? any recommendations?, Anyone know how involved it is to fix it? can it be done in situ or is it pump out?

CheersView attachment 137318
When I changed the seal on mine (300) I started doing it in-situ, got it apart and the seal changed ok, however couldn't get the top back on. Mine had some extra bits inside the cover that I hadn't seen on other write ups. The top cover needed to be lowered at a angle relative to the longitudinal axis of the pump so I could get the various linkages engaged, however I couldn't get sufficient movement because the pump top cover fouled something (inner wing IIRC). End result was that I needed to remove the pump completely to get the top back on. Wasn't to much hassle as I have the pump removal tool that is part of the timing kit, aside from that If I had to do it again I would take the pump out to do just for ease of access etc.
 
Hi @dag019 , @Flossie and @Kwakerman


Just seen your replies thanks. I was out taking it apart and fixing the knackered bits. Sorry.
Yes all measured and marked before hand.
I got the kit from Bob Becks He spent a while taking me through it bit by bit on a pump on his bench, Pump top is now ready to go back in, just getting a bit dark to go and play.

Cheers
 
Hi @dag019 , @Flossie and @Kwakerman


Just seen your replies thanks. I was out taking it apart and fixing the knackered bits. Sorry.
Yes all measured and marked before hand.
I got the kit from Bob Becks He spent a while taking me through it bit by bit on a pump on his bench, Pump top is now ready to go back in, just getting a bit dark to go and play.

Cheers
I'll send you one of mine cos it's doing the same thing:oops:
 
Left it in place, Kwakerman reckons he would take the pump off.

The linky that dag019 put up earlier , looks real good, would have been useful if I had seen it before..LOL.

Not difficult so far, will see how it all goes back together. Fingers crossed it starts and runs fine.:D

Cheers
 
Left it in place, Kwakerman reckons he would take the pump off.

The linky that dag019 put up earlier , looks real good, would have been useful if I had seen it before..LOL.

Not difficult so far, will see how it all goes back together. Fingers crossed it starts and runs fine.:D

Cheers
I'd seen that write up before but I've been offered a replacement pump to put on so it's just swings and roundabouts as to whether to repair the one fitted of chuck a replacement used one on
 
I'd seen that write up before but I've been offered a replacement pump to put on so it's just swings and roundabouts as to whether to repair the one fitted of chuck a replacement used one on

For the sake of it, I would repair the old one anyway and keep it or sell it. As you say swings and roundabouts.

Cheers
 
Left it in place, Kwakerman reckons he would take the pump off.

The linky that dag019 put up earlier , looks real good, would have been useful if I had seen it before..LOL.

Not difficult so far, will see how it all goes back together. Fingers crossed it starts and runs fine.:D

Cheers
It will start and run, the test is weather the revs are still correct. I had to fettle mine once refitted a couple of times to get the lever perfectly lined back up on the spindle, my markings were clearly not as acurate as they should have been!
 
All good, started ok, and ran nicely, in fact it is the first time that it has been set correctly as the PO had set it wrong.

Cheers
 
Having spent the morning fixing my leak, I can confirm that it is easily possible with the pump still in the vehicle, at least with my Defender. A Discovery should be just the same process. Just make sure everything is clean before removing the top cover so nothing falls inside. Once the cover is off, the rest is done indoors on the bench - my throttle bush was worn so I needed to press it out of the cover and insert a replacement. The throttle arm itself was shiny in places, but still round and serviceable but I bought a complete kit anyway from this website HERE The new bush and O ring were a snug fit, but after smearing a little diesel on the rubber to lubricate it, there was no issue re-assembling. This seems to be a common problem with this type of injection pump but not the worst job to fix.
 
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