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When rebuilding an engine, or refitting a head to an engine, ANY engine, the galleries must always be checked and blown out thoroughly. The onus is on the mechanic NOT the machine shop to do this. Plugging the head ports etc is difficult and dangerous if whatever they use ends up in the cutter during machining.
We always do this, the machinist usually blows out obvious swarf etc but it has always been drilled into me to prepare the head for fitting in this way, regardless. Never rely on someone else to do it.
The injector issue may or may not be caused directly by this, the gauze filter is there to prevent ingress of particles.
Hope you get it sorted, Pete ( Psimpson7) wil steer you straight, he has quite a bit of Td5/ head experience.
JC
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Hello again all.
Believe me, I did blow the head out many times at all angles to make sure it was all clean. Been here before with Iveco Tector Euro 4 Engines. It's bad enough that we have to comunicate using these things called computers let alone have our pride and joy controlled by them, and yes Ron I am a computer novice... We can't all be a whiz at everything!
Have found a second hand injector locally and am going to see what happens with it fitted (yup I know I'll have to get the vehicle plugged in to set it up properly but I was not happy driving to Adelaide on 4 pots).
Watch this space... I've certainly learn't a lot... Still leaning toward a nice big jap 6 td (my old 101 used to fly with 6 litres and turbo!!) but the Td5's got one more chance!
Thanks all for the advice!!
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dont just blow the galleries out with air... Flush them with the medium thats going to be going through them at at least the pressure that they are intended to have in them and at the same if not higher flow rate.
If you ever get the chance or an invite goto a machine shop with a good (200x minimum) microscope and ask to sample some swarf from a job being cut and then a look at the surface the swarf came from.
Ally tends to cut up with lots of little "spikes" that allow it to hook into things like velcro. This is more prevalent of high speed full depth cutting doubly so if the cutting tips shape or sharpness isnt great.
Dont panic about the injector code for the initial diagnostics of the rough running donk, the injector code just allows for fine tuning.
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New (secondhand) injector in, 2 3min key primes later and it started instantly on 5! No rough running, no audiable sound differences, no orange light, no smoke and bags of power! So now comes the trust earning bit... 200kms, 1000kms? Thanks all. I've certainly learnt a lot about Td5's!!:)
