Tacho adjustment

[Fully Loaded Cali']

Hi, running an AAZ with AAZ alternator setup (been in the van 2 years now, the engine has done 100,000 miles and no pully wheel has fallen off yet ) i have lived so far with the tacho reading 1000rpm off at 60mph (act reads 4000rpm @ 60mph) i believe that you can adjust the tacho by a screw on the rear of the unit? I have looked at mine (on a 1990 Westy) but only see two brass screws,on at the top and one at the bottom, i cannot see any adjustment screw. Any ideas?

Ta.

[v-lux]

Have a look under the little sticker..

[billy739]

are you running a petrol tacho on a diesel?

dont think you can adjust it enogh if you are

[Fully Loaded Cali']

Hi, Yep - pulled back the sticker (guess it was the calibration cert) and adjusted the screw. 3 attempts and its slightly over 3000 rpm @60mph.

Thanks for the info.