Cold start is fine, but after a few minutes there's blue smoke

Hi there,
I've recently converted my vehicle to run on alternative fuels and now consider myself a newbie in this area, but I need some help.

The engine received a new timing belt during the rebuild and runs very well when cold, with absolutely no smoke.
After a while, the smoke starts and only stops briefly from time to time during certain ventilation cycles.

I haven't had the opportunity for a diagnosis yet, and therefore I haven't been able to make any dynamic adjustments.

I now have one weekend left to get the bus roadworthy for the move, either by myself using a VAG-COM diagnostic tool or by scheduling an expensive appointment at a workshop.

A question for the experienced: Is it worth trying to adjust the saving settings myself, even though the matter seems relatively straightforward, or should I just give up on the attempt?

What possible causes could there be for the error?

Thank you.
Carsten.

Hello,

What is your oil consumption like?

The control of the injection start is described in the relevant article under "Troubleshooting & Instructions."
A diagnostic system is needed.

Best regards, Rainer.

Hi,
I'm not yet aware of the oil consumption, as it's essentially a new installation. However, the engine should be mechanically sound.

I had hoped that the excessive smoking that starts when the part gets hotter was a typical and well-known behavior associated with a specific type of failure. (Normal diesel exhaust, I think).

"Well, of course, I don't think much can be done without a diagnosis."

Regards,
Carstrn

Try searching in this forum.

I seem to recall reading somewhere that someone had problems installing a TDI engine into a T3 and, I don't want to spread misinformation, but they modified something related to the breather system for the crankshaft because oil was leaking out of it.