How to Strip a Bosch Diesel Injection Pump

[CitroXim]

I have finally done it, thanks to the cold weather, and produced a guide to stripping a Bosch Diesel Injection Pump as fitted to many an XUD 1.9TD engine. Earlier pumps without the electronic bits are very similar, as are non-turbo Bosch pumps. The pump used was from a 1997 Xantia 1.9TD.

The strip is what you would have to do in order to replace the seals most likely to leak. I do not recommend dismantling a pump of this nature any further lest the calibration of the thing be upset.

This is not an easy job at all and must be undertaken with extreme care and caution. In BoL-speak, a real 5 spanner job.

This was a scrap pump that had sprang a massive leak after running very high ratios of vegetable oil for an extended period. I've had it in bits before and for the past 6 months or so it has been been soaking in vegetable oil to enable some rough assessment to be made of any adverse effect the oil may have on the pump seals.

I found the seals had hardened quite considerably between my first and latest disassembly of this pump. I therefore believe (personal view only) that running high veg ratios is ultimately detrimental to the pump seals.

Here is the guide. It's on a slow link and the pictures may take a few moments to load...

http://www.eastment.net/Boschpump1.htm

[ellevie]

Very nice Jim, very thorough. Great pics !
I like the way you've divided it up in sections with links.

[jonathan_dyane]

On the removal of pump armour, can I just say that I fitted a Xsara pump to my old BX which necessitated removal of the armour to fit a standard type stop solenoid.

I found it was possible to tease the shearbolts undone with a sharpened punch, although I hasten to add this was on a Rotodiesel/lucas/CAV type pump and not a Bosch...

[toddao]

Good work Jim and very timely for me! Thankyou