4 or 5 speed box - typically in 4th in EITHER box (direct drive) you get 20
MPH for every 1K RPM (depending also upon wheel/tire profile) - so your tach
doesn't seem all that much out of whack - at least at the high end - idle
does seem LOW.
Peter Harrison
818 448 3181
> From: Jerry.Dow@Suddenlink.com
> To: aultgc@att.net; datsun-roadsters@autox.team.net
> Date: Wed, 4 Sep 2013 12:31:14 +0000
> Subject: Re: [Roadsters] Adjusting the tach
>
> It reads about 300 at idle and reads about 2000 at 50MPH.
>
> From: Gary and Cindy Ault [mailto:aultgc@att.net]
> Sent: Tuesday, September 03, 2013 11:22 PM
> To: Dow, Jerry; datsun-roadsters
> Subject: Re: [Roadsters] Adjusting the tach
>
> Jerry,
>
> The only way I know is to have it professionally recalibrated, like the
> speedometer.
>
> What does it read at idle? I presume the deficit increases with rpm?
>
> Gary
>
> From: "Dow, Jerry"
> To: datsun-roadsters
> Sent: Tuesday, September 3, 2013 9:00 AM
> Subject: [Roadsters] Adjusting the tach
>
> Newby question. My tach runs behind about 1000 rpms. Any way to adjust
'70
> roadster tach?
>
>
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