Taking a Bosch FIP pump back to factory

[Orgasmic Farmer]

Not sure where to ask this but hoping the real brains frequent this part of the forum.  

 

Not really an issue but my FIP (300 tdi) has been tweaked several times over the years and, while it goes well enough, I sometimes get to thinking I would like to get it back to some sort of base or reference setting from which I can start again. Is there any way that a (fairly :-) ) competent home mechanic can do this without recourse to specialist equipment? Or does such a setting not really exist anyway and it is all trial and error?

 

Happy for any links, pointers or experiences. 

 

Cheers

OF

[Retroanaconda]

When I looked for information on how to do this a few years back the conclusion I came to was that it wasn't possible without the specialist calibration equipment etc. and the relevant specifications to work to. Generally the steer I got was that there was no 'standard' as such when it came to positions of star wheel, eccentric cone etc. as the whole lot is set up dynamically on a testing rig. And it's all very precise.

In the end I just got Diesel Bob to rebuild it, that way I knew it was sound for at least 200k. I would be interested to find out if you crack it though!

[pat_pending]

There will be a starting point for all the settings, however that will assume a new or rebuilt pump is being set up.

As Retroanaconda says, the pumps are set dynamically, once there's some wear in there, no two will be quite the same.

Without the pump on a test bench you'd go round in circles doing trial and error.

The biggest single improvement you can make to a higher mileage tdi is to get the pump and injectors overhauled properly.