Mk5 Fiesta (53) Engine swap

[Sandy Nuts]

A friend of mine has sourced a cheap Puma engine (1.7 Vct, all the gubbings)
and wants me to fit it to his Fiesta.

It's a 53 plate 1.4 Duratec. I presume the wiring differences between the
Duratec and Zetec-SE engines are very different? I've done this conversion
on a Mk4 Fiesta without issue, but how does the Mk5 compare? (Tim?).

The main things I think that may be a ball ache would be the wiring and fuel
lines. AFAIK the Duratec 1.4 doesn't have a return line, correct?

[Tim..]

Post by Sandy Nuts
A friend of mine has sourced a cheap Puma engine (1.7 Vct, all the
gubbings) and wants me to fit it to his Fiesta.
It's a 53 plate 1.4 Duratec. I presume the wiring differences between the
Duratec and Zetec-SE engines are very different? I've done this conversion
on a Mk4 Fiesta without issue, but how does the Mk5 compare? (Tim?).
The main things I think that may be a ball ache would be the wiring and
fuel lines. AFAIK the Duratec 1.4 doesn't have a return line, correct?

Hmm, well had he been doing a Mk4 - Mk4 swap, its easy enough as the engine
bay loom is separate from the rest of the car, and by-and-large just plugs
in, so its easy.

I have no idea about the mk5!

You are right in saying that the mk5 doesnt have a return line, and that its
pressure regulated by a remote reg. You should be easily able to alter the
1.7's fuel rail to make it remote reg'd though.

Obviously he would need to transplant the 1.7's ECU , and ignition barrel,
and use the 1.7's keys (so the immobilzer disengages...)

Tim.