Update!
It now will not read at all.
Thanks

Submitted by alan.barc@veri… on Mon, 06/25/2012 - 11:29

I had intermittent electrical issues when I got my SII 4 yrs ago. The cause was fuse holder corrosion. It took no time to pull the holders, aggressively clean them with a Dremel and then use a liberal amount of Di-Electric grease on the connections to prevent future corrosion . Not a bad idea to do this on all exposed electrical connections in a humid climate

Submitted by MikeEck@optonl… on Sat, 06/23/2012 - 18:24

Fuse holders are cheaper than a tach rebuild. While you're in there why don't you clean the other fuses and holders too.

Submitted by joshbartlett@r… on Sat, 06/23/2012 - 16:35

Thanks, guys. The brake lights were out also, and I find that the fuse hadn't blown - the fuse holder wasn't tight. There was evidently some arcing, some of the plastic had charred and melted. I guess Lord Lucas gets to sell another fuse holder.
Thaks again.
Josh

Submitted by SE98-32482CJ on Fri, 06/22/2012 - 18:18

Josiah before you do some expensive things check your fuses--if the tach fuse is out you will have no cooling fans or brake lights.

Submitted by joshbartlett@r… on Fri, 06/22/2012 - 16:54

1969 E-type Series II .
On last long trip, the tach started to read only intermitently. I have removed it and checked the connector - seems tight (and I understand the car won't run with the tach disconnected as the coil feed runs through the instrument).
Any ideas?
I don't have one I can substitute and I don't want to replace the original if the probem can be easily fixed. Removing it again is not something I look forward to.....

Thanks!