Electrics: 164: - Tachometer

TonyCy · Mar 27th, 2021, 14:44

Thought to share a bit of success on my 73 164. She had no tacho - just the Volvo blanking plate and I see a tacho as a necessity so thought how to solve. I found a good condition tacho from a 260 series ex US. Took off blanking plate, found mounting points and electrical terminals already there. Bolted tacho in, put in a single feed to coil negative and done - works well! Great and simple upgrade for those that don’t have a tacho already.

TonyCy · Mar 27th, 2021, 15:15

Added picture

Triple-S · Mar 28th, 2021, 13:24

I've been asked if I can put a 164 rev-counter into a friends 144 of that period so interested to read your findings. However, of course the 164-part is marked 6-zyl rather than 4: would you know if that would work? Other stages done OK but as it reads impulses from coil guess it might not. Any thoughts?

P

TonyCy · Mar 28th, 2021, 14:32

Hi, I think not. Yes it will move but it will be a factor out. I had similar with my Triumph Stag when I bought it - tacho reading a factor of 2 too low as someone had fitted a 4 pot smiths tacho from an MGB. I fitted the 8 pot and immediately spot on. So, in short, find a four-pot tacho from a Volvo of that era and it should pop right in.

Mar 27th, 2021, 14:44	#1
TonyCy Junior Member Last Online: Nov 29th, 2021 10:02 Join Date: Feb 2021 Location: Limassol	Tachometer Thought to share a bit of success on my 73 164. She had no tacho - just the Volvo blanking plate and I see a tacho as a necessity so thought how to solve. I found a good condition tacho from a 260 series ex US. Took off blanking plate, found mounting points and electrical terminals already there. Bolted tacho in, put in a single feed to coil negative and done - works well! Great and simple upgrade for those that don’t have a tacho already.

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Mar 28th, 2021, 13:24	#3
Triple-S How Old? Last Online: May 31st, 2021 12:28 Join Date: Oct 2006 Location: redhill	I've been asked if I can put a 164 rev-counter into a friends 144 of that period so interested to read your findings. However, of course the 164-part is marked 6-zyl rather than 4: would you know if that would work? Other stages done OK but as it reads impulses from coil guess it might not. Any thoughts? P

Mar 28th, 2021, 14:32	#4
TonyCy Junior Member Last Online: Nov 29th, 2021 10:02 Join Date: Feb 2021 Location: Limassol	Hi, I think not. Yes it will move but it will be a factor out. I had similar with my Triumph Stag when I bought it - tacho reading a factor of 2 too low as someone had fitted a 4 pot smiths tacho from an MGB. I fitted the 8 pot and immediately spot on. So, in short, find a four-pot tacho from a Volvo of that era and it should pop right in.

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