D5252T timing pump setting value

[JCF]

Hello everyone.

I am a car-tech from France (currently working for a French brand but used to work on some older various cars - not so much on Volvo's) - and car enthousiast for more than 20 years.

As it is my first post, I will tell the situation leading me to be here.

One of my friend just bought a 1998 Volvo V70 2.5 TDi to replace his former +500.000km S40 1.9 TD (I dubbed him "Volvoman" because he loves this brand. He also have a 440. I service all his cars). The V70 is pretty mileaged (more than 400.000 km) but looks very good (exactly the same than Gustavo Fring's one !)

He experienced start problems and smoke.

I plan to replace the timing and diesel pump belts to get the most accurate timing. I fail to find factory informations about this engine but find the Audi engine workshop manual which is very helpful.

It seems that Volvo D5252T is very close to Audi AEL engine, although, it there is some variation (ie. fine setting of the timing is made by twisting the pump for Audi ; using an eccentric belt roller to Volvo, which is not really "Tipp-ex-timing-specialist"-friendly). And that's why I'm here.

I think I won't have any trouble timing the camshaft (planned to have it set with tool in the slot, equal shims in each side then torquing the tapered cam pulley).

I also have no problem with the way to set statically the injection point (have dial indicator ready for this) ; and then understand the fine adjustement using diagnostic-software.

The problem is I don't have the "official" value for the static, nor dynamic timing :
* Audi AEL engine workshop manual require lift of 0.32mm - then read 0.25 when checked.
* I find on this forum the value of 0.55 +-0.02 (I think it's in mm).
* I find french sources wich deal with 1mm lift.

As close to the AEL engine the D5252T is, Volvo may have tuned the engine differently so it seems possible that the AEL value doesn't match at all.
There may also have some emission/country specifications that lead to set the timing differently (my friend's car is from Germany, if I'm not wrong).

I would like to get the correct timing at first try !

I would also like to do the dynamic timing setting afterwhat and doesn't have any value except from the Audi manual.
My personnal tools doesn't communicate with the car but I have access to powerful multi-brand which I hope, will do the job. I'm looking for informations about other ways to do it in case it doesn't work.
I am a little confused if VW-tools can do this (some sources tell yes, other not). Keeping an eye on VOL-FCR by the way ; can buy the licence if it can do the job and communicate with all the other ECU (especially ABS and SRS). Any feedback about it is welcome !

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