Does anyone know where to find instructions to install the small 52mm tachometer? I just bought it on ebay with everything but instructions. :-/ There are four wires on the harness.
Gray
Black
Blue
Blue w/ Red stipe

Going into a 87 240 DL

Thanks

PS: I also have the official Volvo installation instruction booklet for the 52mm
voltmeter.

Let me know where to send / fax, if you need it.

Geo in PA

gwright@foamex.com

I have the official Volvo installation instructions for the 52mm tach.

I can send a photocopy US Mail, or I can fax it to you tomorrow (Thursday).

If you will send me your postal address or fax #, I can get them out to you.

This booklet will make installation 100% stress free.

George in PA

email to gwright@foamex.com

Well either Volvo owners are passionate or just insane. I stayed up until 5 AM installing that little tach. Imagine if you will me in my car in my pajamas with a trouble light hanging on the rear view mirror. I coudln't take it any longer I had to install it, so I figured it out.

FYI if this helps any one:
Gray = Light + (tapped into a brown wire that gives light to the aux switches)
Black = ground (placed on screw under key switch)
Blue = gauge (connects to red and white wire hanging behind gauge cluster)
Blue w/ Red stripe = power (connected to empty circuit in fuse pannel)

It all worked out, started it up and took it for a drive around the block at 5 AM.

viva volvo!

Had I seen this sooner, I could have told you exactly what to do. Is that the small tach with the 6000rpm redline? It used to be mine, but I sold it to Mike who just sold it on ebay. I made part of the wiring harness and the rest is the original Volvo harness that came with another small tach I had (I only had a roll of blue wire so the red tape stripes helped me tell them apart at the gauge).

I'm glad to see it's back in service in another '87 240. I used it for a couple months in my '87 244 until I fixed my large tach. It's the one and only 6K redline 52mm tach I've ever seen.
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Volvo 240 Links | Volvo 240 Racing Gallery

Michael,
Just read your post on 52mm tachometers. Noticed that you mentioned red line at 6000 rpm, I recently installed one that red lines at 6500 rpm and goes up to 7000 rpm. Is that unusual? Are they all callibrated slightly differently?
Just curious, thanks.

All the 4cylinder tachs are calibrated the same, and they should all go up to 7000rpm. The only difference is that the ones originally meant for the B23 and B230 engines have the redline marked at 6000rpm due to the rev limiter cutout at around 6K. A tach originally meant for a B21 has the redline marked at 6500 because there was no rev limiter w/K-jet and I guess they knew those engines could handle higher revving and provide fuel for higher revving. Any of the 4cyl. tachs will work with any of those 4cyl. engines. However, a tach installed in a 260 with a 6cyl. engine will NOT read correctly if installed with a 4cyl engine.
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Volvo 240 Links | Volvo 240 Racing Gallery

:)

My wife would have had a fit. Never have gone past 3 a.m.