Hello all.

This is my first post, although I have spent the last week reading many posts on this subject.

Before I replaced my(actually my poor wife's!) timing belt the Skoda Octavia Mk2 2005 2.0 tdi with a BKD engine was running great - started easy and plenty of power, seldom smoke. I wish I took torsion and l/h data at this point, but I didn't.

After replacing the belt with the locking tool and pins, and before fine tuning with the cam sprocket bolts, the torsion was 0.5 and l/h .6. I didn't test drive it.

I adjusted the cams to get the torsion to -0.5 and the l/h to 0.6 and had troubles. With a torsion to -0.5 and l/h 0.6 and it took a while to start and lacked power above 3000 rpms, top speed on 50mph and sometimes even stalled.

I now have it back to torsion 0.5 and l/h to 0.6 and it starts well but still lacks power over 2500rpmvcds.jpg. This setup seems to minimise the injector deviation in block 13 too.

I can see from the marks I made on the cam sprockets that the adjustments I made are very fine, like about 1 mm off their pegged position.
I have tried numerous alternative combinations of torsion and l/h without luck.

There is another piece of information.. originally I reversed the hoses that supply the tandem pump when putting the fuel filter housing back in. I am worried this may have introduced contaminants and is causing the lack of power under load/higher rpms. I have already replaced the head of the fuel filter housing and it made no difference.

So I would be very grateful for some advice.
1. Is there any advice on torsion and l/h settings to address the lack of power under load.
2. Is there any diagnostics that would identify a fuel supply problems

Any other bones would be well received too

Thanks very much for your help