IP Fuel Leak

[uc4me]

Looks like my IP is leaking diesel fuel (Disco 200tdi in my Tithonus) with a steady drip every 5 seconds at the red arrow shown. The manual I have wasn't much help, I'll keep searching but in meantime, any quick ideas?

Top of IP looks dry. Pic taken from under truck looking up. Thanks.

 

[javelinadave]

Probably need this:
https://dieselgeek.com/products/viton-pump-head-o-ring-seal-kit-for-bosch-ve-injection-pumps

 

[Mirrajumper]

You can also check the fuel pin plunger to make sure that the pin isn’t stuck at full fueling. Easy access from the top. With the pin out, you should be able to see the horizontal nub that pops into the chamber when you move accelerator cable
You should be able to see the stroke limiter pin pop in/out. You can fill the tube with rust busters and let it soak up
For an hour.

 

[Mirrajumper]

 

[expanse]

o-ring needs to be refreshed.

 

[uc4me]

Thanks all for the feedback, I'll look into these areas. Andrew, does the pump need to come off for the o-ring replacement?

 

[JimC]

Thanks all for the feedback, I'll look into these areas. Andrew, does the pump need to come off for the o-ring replacement?

It doesn’t have to, but it makes the o-ring replacement easier. If you’re not prepared to re-time the pump though, then it makes everything harder.

 

[JimC]

Check out this old post of mine for a better visual. In this case I took the pump out, but I’ve also done it in-situ with the coke bottle trick.

What have you done to your DEFENDER today?

Broke off the old floor mount bolts behind my middle row seat & removed the seat belt floor plates to wire wheel, clean up & isolate with POR15 the floor & parts. New SS bolts for the ones I twisted off. It's hard to just do little repairs like this... must fight the urge to start taking...

nas-row.com

 

[uc4me]

Oh boy I really don't want to re-time the pump with the fact that truck is running well and I've never attempted that before. Maybe it's not that bad to try and learn. If that comes out I might as well do the timing belt, right? I don't know the condition of it or last change and that weighs on my mind..

Let me guess, is the coke bottle trick the ability to roll the o-ring over the pump head?

 

[expanse]

Thanks all for the feedback, I'll look into these areas. Andrew, does the pump need to come off for the o-ring replacement?

I pull them. I'll give the housing a clean before I pull and before disassembly. set upright and I use tacky grease on ring and surfaces upon assembly. buy a second kit/o-ring for cheap insurance.