morto

hello all , i posted b4 about my focus tdci and massive trouble iv had with it, but to cut a long story short the turbo shaft snapped and this we think my (diesel specialist) caused the oil pressure to drop and because they run on kind of 2 timing belts one is a chain and the other is your normal belt, anyway when the turbo shaft snapped the low oil pressure caused the timming chain which runs a oil pump to malfunction and 8 valves were very slightly bent!
but my issue is the fact that after spending massive money and having the engine stripped down and rebuilt the original problem is still there which is its flat as a fart? you can here the turbo spining but there is just about no boost, but the actuater can be seen to be moving up and down? the turbo is brand new !! this is whats been done to it..

4 new injectors( ecu reprogrammed for injectors)
cam belt kit . everything
cylinder head kit
8 new valves
timing chain kit
airflow meter.. wasn't needed so sent back
scanner diagnostics.. now show no FAULTS..

so iv had to take it away from the garage cus of massive costs and to be honest i think they were glad to give it me back, so it runs fine and now and again the turbo seems to kick in but then just feels flat as a fart!! its like driving a n/a and according to the plug in diagnostics there is no fault, im going to ring the guy i got the turbo off and just see if it is possable they haven't set the actuator up correctly.
the other thing is do not believe ford when they tell you that the cam belts on tdci can do 100,000 b4 changing it mines only done 60,000 and it was very nearly split


andy

James

has the intercooler split?

Glenn_

iTrader: (1)

Fooking hell mate what a nightmare.

morto

its a thought, i will check it in the morn, if any one can help on this on any ideas i would be very greatfull as i realy dont now what to do

thanks
andy

James

boost pipes and vacuum pipes are something else to check, was it running ok before the turbo replacment?

morto

its the worst engine ive ever worked on , i build evo,s up and there a piece of cake to work on

andy

morto

it was running fine b4 the turbo shaft snapped, i was only doing 60mph and then no power and lots of smoke

andy

AlexF

Have you checked the cam timinig?

James

any update?

morto

was rebuilt by a diesel specialist but if i had left it in the garage any longer the bill would of killed me..
the update on this is that ive done around 200 miles and it runs fine just no power in first and second until! you hit around 3000 rpm , yes you can here the turbo spooling up and yes the egr valve has been checked cleaned and is working, yes the maff has been checked we put a new one on and no diff so sent it back to ford, as said no fault codes at all, took it to main ford dealer and they said off the top of there head they don't no? i think it could be a simple thing as the actuator not being wound on enough when it was rebuilt the turbo builder says it was done correctly, yes you can see the actuator move up and down when you rev it for some reason i don't now you can do this on diesels while its stood still? just about most of this fookin engine is new... so im well fooked off and have been on tdci forums and there a load of absolute crap.. with no one coming back with much .. Ive also read on a couple of tdci forums peeps having very similar problems and their seems to be no answer to it, it makes no sence at all , im going to have to get a boost gauge and see what its boosting at i would of thought it should be some were around 5 to 7 psi? ive even thought of getting in touch with stu and seeing what he makes of it as he does a few diesels

andy

andy

James

not sure on an exact figure but i'd expect to see round 1bar under load on the road.

GUZZLER

iTrader: (3)

where did the turbo come from?
most turbo companys can not calibrate the vnt system, the veins may not be opening fully or could be damaged.

morto

hi mate it came from here

http://www.gap-turbos.com/turbos.html

i spoke to the guy about a day after i fitted it and he told me they set all vnt up to fords eom settings as it says on there web site

n13los

have you or your mechanic done a leak off test?

GUZZLER

iTrader: (3)

the turbo may still be an issue then, ford don't make the turbo's, garrett do, & it would be to their settings.
as for setting vnt's, at the moment you can't buy any equipment to calibrate a vnt turbo, the machine to do it is due out this year.

morto

this is good infomation! how do you now that? and so does that mean that unless you buy a replacement turbo from a ford oem the turbo might not be set up correct?

andy

ECU Monitor Enthusiast

iTrader: (1)

Are you sure it has the correct map for the injectors ...?

morto

just read this

Garrett’s VNT (variable nozzle turbine) turbochargers are designed to give maximum power at low revs. The variable turbine adjusts the gas across the inlet of the turbine wheel in order to give this maximum power with the required load. At low engine speeds and less gas flow, VNT turbochargers reduce the cross section, increasing turbine power and performance. At full engine speed and greater gas flow the VNT turbocharger increases the cross section, avoiding over boost and keeping the boost pressure at the required level.

The correct angle is kept controlled at all times by a pressure actuator, or by the engine management system using a vacuum actuator.

When the VNT turbocharger is functioning correctly it accelerates the turbocharger more quickly and provides an increase in engine boost pressure when compared to a conventional turbocharger. This allows more fuel and torque to be generated.

The VNT mechanism has a very common fault giving the turbocharger a distinct lack of boost pressure. The fault is that the mechanism gets clogged up with carbon and soot, causing it to seize. It normally seizes in the open setting or the closed setting. If it seizes in closed position no gas flow is generated (causing lack of power). If it seizes in the open position there is too much gas flow causing the turbocharger to % over boost. In this case the engine management system over rides the fault, causing the vehicle to go into limp mode.

(A very common fault, and another problem Turbo Clinic can sort out).

morto

yes pal bcus the turbo was the same on the old injectors, the new injectors were re calibrated

GUZZLER

iTrader: (3)

only one machine to calibrate VNT turbos, deposits taken by TT but none realeased as yet

http://www.search-autoparts.com/sear...d=41884&ref=25

MATT222

want about the cat blocking?? you said the turbo went , so where did most of the oil go?? most of it went down the exhaust. all so have you checked the air filter cause they used to suck them up into the air in let pipe

220tel

i had a blocked cat on my tddi focus a while back
started and ran fine but no power at all
you could make slow progress but it would not make it up a hill or slope
the cat had blocked due to an over fueling problem and has ran fine since unblocking

morto

ford told me 100k for belt but thats utter bollocks my mate who runs his own garage says even Mercedes Benz say change at 60 thousand , and yes there is a chain that runs the bottom end and oil pump

James

have changed quite a few at between 100k-110k, you don't see that many with broken belts.