From Lucas pump to Bosch

[Almu]

Hello ,

I have just changed the LUCAS injection pump for a mechanical BOSCH (0 460 414 154) in a mechanical workshop and the situation is as follows:

- The new Bosch pump has less power than the previous one, since with Lucas my camper (2.5 TD 4EB 1999 ) went 90 km/h with very little pressure on the pedal, but it could reach 100, or 110 a little forced . And with the new Bosch pump it reaches 90 km/h with the pedal fully depressed, and that is all its power; that is, comparatively it runs less, it has less power.
( 90 km/h = +- 60 miles/hour ) .

My question is for those who have done the conversion or know about the subject: what I explained above is normal, it is possible that we have done something wrong...???
because I do not find logic in that difference between both injection pumps

Thanks for your time.

(Sorry if I don't express myself very well, but I write with the help of google translate)

[meerkatmag]

Adjust the max fuel screw at the back. Mine was much faster after Bosch conversion.

[joinerman]

As above, mines like a rocket ship now

Do a search on here for manual pump conversion, there’s lots of threads with details on how to “ tune “ it after fitting

[Almu]

Thank you both for your collaboration.

In principle , I want to understand that both of you say that they go even faster after the conversion . And that is what surprises me about this situation, because mine is much slower. The conversion , given my lack of practice with such complex things , I have carried out in a specialist injection pump workshop .
In any case, until mid-August there is nothing to do for vacation reasons in the workshop.
I write down and comment on all the contributions I receive.

Once again, thanks meerkatmag and joinerman

[joinerman]

Just an afterthought have you got the timing set right, I assume you put a new belt on when you did the conversion

[Almu]

As for the timing , and the new belt , I imagine that yes , we are talking about a workshop specializing in injection pumps . What surprised me was that it was a Bosch pump that worked much slower than the Lucas that I had mounted before.

Thank you very much for your contribution joinerman

[V184]

Adjust the max fuel screw at the back. Mine was much faster after Bosch conversion.

And no smoke ???

[meerkatmag]

Adjust the max fuel screw at the back. Mine was much faster after Bosch conversion.

And no smoke ???

Oh it smokes on full throttle high revs haha. It definitely has more mid range power and doesn't smoke until about 3000revs. My Lucas was set very conservatively on my mine, never smoked but was desperately slow on the motorway.