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Tdi conversion: rev counter

Posted: 29 Jul 2012, 18:02
by donciuz
Hi

I have recently put a golf Tdi engine 1Z/AHU instead of a JX. I am using golf alternator. I have connected rev counter to the alternator as previuos, but now it shows a lot more revs. Going 70mph previously was about 3000rpm, now its over 4000rpm.
Is there any way to correct that?

thanks

Re: Tdi conversion: rev counter

Posted: 29 Jul 2012, 18:11
by ELVIS
feel around where the paper label is on the back of the tacho- there is a small hole underneath. puncture the paper and you can recalibrate/tweek it via the hole.

Re: Tdi conversion: rev counter

Posted: 29 Jul 2012, 19:31
by ninja.turtle007
Mine has been adjusted but it still over reads by 200RPM at tick over. Sell you rev counter and with the money buy a Sangauge 2!

Re: Tdi conversion: rev counter

Posted: 29 Jul 2012, 19:35
by lloydy
ninja.turtle007 wrote:Mine has been adjusted but it still over reads by 200RPM at tick over. Sell you rev counter and with the money buy a Sangauge 2!
have you got one now Tom? Do agree though, if you have one you don't need a rev counter, or any other additional guages

Re: Tdi conversion: rev counter

Posted: 29 Jul 2012, 19:37
by donciuz
Thanks for the reply, I'll try to find that hole.

Re: Tdi conversion: rev counter

Posted: 07 Sep 2012, 21:16
by max and caddy
Or fit a freewheel pulley....it's bigger...and you can get bigger still off other stuff than vw.

Re: Tdi conversion: rev counter

Posted: 08 Sep 2012, 12:16
by jed the spread
Or run an AAZ belt system so the alternator isn't poking out of the lid and you can use the standard rev counter :wink:

Jed