Mõtlesin, et uurin kas kellelgi on sama probleem volkswageni syncroga. Vahel tuleb tagavedu järgi vahel mitte. Ma leidsin mõningad lahendused mis võivad olla kasulikud nt. "Its more likely to be a vacuum pipe that has become disconected (the ones that you thought were brake pipes), the clicking you can hear is the freewheel (like a pedal bicycle freewheel)

The reverse 4wd is switched by the reversing light switch (mounted on the gearbox) so yes it could be either that or the solenoid or or vacuum pipes / actuator that is not working.

As in your original post you say that it goes away after a few hundered meters I would first look at the non return valve in the vacuum line, It is a set in a green plastic pipe coming off the inlet manifold and heading off along the bulkhead towards the left front wing.

A 6 potter is a 6 cylinder motor, the transfer box/ rear diff have different ratios to the 4 cylinder motor and are not compatable with each other."

Siin kohal peaks mainima et tagurpidi tuled tõesti ei tööta vahest. Mõni kord lähevad põlema mõnikord mitte, ning sama on syncroga tagurdades vahel on tunne et tuleb järgi, siis jällegi mõnikord aint esivedu veab. On kellelgi mõni lahendus selle kohta, või on keegi üritanud seda probleemi lahendada?
Mõtteainet sain nendest teemadest, mingist vw foorumist. http://www.vwsyncro.co.uk/data/forums/t ... hichpage=2 ja http://www.vwsyncro.co.uk/data/forums/t ... IC_ID=2570 ,päris tarka juttu räägivad, kuid asi lihtsalt selles, et ma ei valda auto tehnilist poolt nii hästi, siis mõtlesin et pöördun streetracerite poole ja leiame lahenduse sellele küsimusele üheskoos