Can anyone advise the expected turbo boost pressure for the above
vehicle as measured at the air inlet manifold, gauge tee`ed. into line
from manifold to fuel injector pump diaphragm. I am getting a maximum
of 0.45 bar(G),approx.6.5 psi(G), in 4th.gear,van climbing a moderate
gradient. The van has 9000 mls. on the clock and I have owned from
new.
I believe the performance has gone down receantly and after carefully
checking everything else my attention has turned to lack of turbo
boost pressure.
I can not obtain a definitive expected boost pressure from my local
dealership, they don`t know or won`t tell !!
Any information greatly appreciated,
Derek Payne
1 bar. Make sure all pipes to and from the intercooler are on and the
clips are tight both ends of the pipes. Also the position of the
intercooler makes it susceptible to damage from stones etc. Make sure
there are no holes in the core. Don't know of any other troubles.
Never known of a turbo failure on these vehicles. Oh, check you're
getting full throttle on the pump.
Many thanks for the reply and information. You sound very sure about
the 1 bar pressure, if this is the case it looks like I may well have
a turbo problem.
I have checked all the piping to and from the intercooler and re-made
all the connections. There does not appear to be any physical damage
to same but I will fit a temporary by-pass if I can find a pipe of
suitable diameter for the hoses. I have already trimmed in all the
slack in the throttle linkage and removed a layer of carpet/mat from
underneath the throttle pedal.
Any idea what the normal expected pressure drop across a healthy
intercooler should be for test comparison ?
Once again many thanks for the advice / assistance,
Derek Payne
> from manifold to fuel injector pump diaphragm. I am getting a maximum
> of 0.45 bar(G),approx.6.5 psi(G), in 4th.gear,van climbing a moderate
I haven't the values, but it seems a bit too low for me. I'd expect at least
0,8bar, which is a minimum value for a TDi. You could mail Peugeot France,
at w...@peugeot.com, to get the real pressure.
Regards,
G.T
g....@worldonline.fr
mi...@ironmaiden.com
205 Diesel & turbo-Diesel : http://205d.fr.st
> usual fault on these engines is bad sealing of the hose/connections to the
> turbo which run under the engine(you may have to remove the undertray(if
> fitted)
Always a pleasure to see you visiting the NG, although there are still so
few technicians (for example, I'm still not a technician at all). Just a
(theoric) question : were these engines flowing from the (old) 2.5D / 2.5TD
(CX, 605, J5, Boxer) or a Sofim (FIAT) engine ?