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Join Date: Nov 2019 Location: Bedford uk
Posts: 113 Thanks: 5 Trader Rating: 0 ![]() | fitting rev counter Hi hope someone can help I am trying to find a Tachometer for my 500L fitted with a 652 126 engine all the ones i come across seem to be for 4 cylinders engines. Can i use a Tachometer for a motorbike? if so is it easy to wire it up or would it need a mechanical drive? I have 123 ignition. Barry
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Join Date: Jul 2012
Posts: 2,828 Thanks: 224 Trader Rating: 0 ![]() | Re: fitting rev counter I have n"Abarth style" instrument cluster in my car, and in it is a tacho for a 2-cyl engine that is NOT a bike instrument. It is a "SMITHS CLASSIC SEMI-PROGRAMMABLE" and can be purchased from:--"Cearbont Automotive Instruments Ltd" (www.caigauge.com). It does 2+4+6+8 cylinder engines and is altered to the number of cylinders it is required for by a number of small switches in the base of the tacho. .
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Join Date: Aug 2017 Location: London-ish
Posts: 489 Thanks: 20 Trader Rating: 0 ![]() | Re: fitting rev counter I installed a digital dash with requires a 4 cyclinder tach signal (which is taken from the negatve of the coil output) I used this to great effect https://www.ebay.co.uk/itm/UNIVERSAL-TACH-ADAPTER-CONVERTER-COP-1-2-3-4-5-6-8-10-cyl-to-any-4-6-8-Tach/141979625888?hash=item210ea529a0:g:mEsAAOSwJzRfB6R 4 No afillation So yes, you could use your favourite 4 cyc tach if you so wanted to. I would advise that you don't use a motorcycle tach, as their range is quite high, 0 - 14000RPM, so the granularity is small and you'll not see much movement on the dial. R
__________________ Eat French. Dress British. Drive Italian! 1975 - 500R 1987 - 5000 QV 1996 - F355 Spider 2006 - Vauxhall Astra (mule) ![]() Last edited by lazylobster; 4 Days Ago at 09:38. |
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Join Date: Nov 2016
Posts: 24 Thanks: 1 Trader Rating: 0 ![]() | Re: fitting rev counter Soooooooo, what exactly does an "Abarth style" instrument cluster look like?
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Join Date: Jul 2012
Posts: 2,828 Thanks: 224 Trader Rating: 0 ![]() | Re: fitting rev counter Ronstox; I have never had any success at putting pictures on to the Forum--if you contact me directly-- tommontagu@yaho.co.uk I will send you some pictures of my instrument cluster. On the 'L'model with the big instrument cluster, they are a real P.I.T.A. to fit--you have to cut quite a bit of the dash away, and where you do have to cut makes it impossiblt to refit the original instrument cluster-- the 'D', 'F' and 'R' models with the small instrument cluster make it much easier to fit an "Abarth" style cluster. My cluster has a tacho, electronic speedo, oil temp gauge and oil pressure gauge along with various warning lights. 'Mechanical' speedos are available, it is just that my kit came with an electronic speedo in it.
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Join Date: Aug 2017 Location: London-ish
Posts: 489 Thanks: 20 Trader Rating: 0 ![]() | Re: fitting rev counter Picture from a friend of mine and his during build. R
__________________ Eat French. Dress British. Drive Italian! 1975 - 500R 1987 - 5000 QV 1996 - F355 Spider 2006 - Vauxhall Astra (mule) ![]() |
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Join Date: Nov 2016
Posts: 24 Thanks: 1 Trader Rating: 0 ![]() | Re: fitting rev counter Oh, that looks nice. Thanks hobbler & lazylobster. I have a 500F and I really like the original instrument cluster, but I would also like more information about the engine in real time. I'll probably go with something like evmaniac's or lazylobster's solution
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Join Date: Aug 2017 Location: London-ish
Posts: 489 Thanks: 20 Trader Rating: 0 ![]() | Re: fitting rev counter HI Ronstox, for my LCD display, all in parts around £110. Mostly electical wiring.t-piece for the oil pressure sensor to keep orginal working on the round speedo. Had to tap the oil pan for the oil temp sensor. What I like about it is, that you can unplug it and remove the suction mount and revert back to original look in approx 1 min. DM me your email if you wish I'll forward over a listing of the parts. Cheers Rob
__________________ Eat French. Dress British. Drive Italian! 1975 - 500R 1987 - 5000 QV 1996 - F355 Spider 2006 - Vauxhall Astra (mule) ![]() |
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Join Date: Jul 2012
Posts: 2,828 Thanks: 224 Trader Rating: 0 ![]() | Re: fitting rev counter Both "FD Ricambi" and "Passione" sell a take off that allows for both a pressure and a warning light sensor to be fitted to the same take-off---eliminates the need to drill intothe sump if all you want is a pressure read-out (and the 'low-pressure' idiot light). If you wanted temperature and pressure, sensors are probably available to allow for this, but possibly at the loss of the 'low-pressure' light.
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Join Date: Jun 2009
Posts: 1,219 Thanks: 96 Trader Rating: 0 ![]() | Re: fitting rev counter Both "FD Ricambi" and "Passione" sell a take off that allows for both a pressure and a warning light sensor to be fitted to the same take-off---eliminates the need to drill intothe sump if all you want is a pressure read-out (and the 'low-pressure' idiot light). If you wanted temperature and pressure, sensors are probably available to allow for this, but possibly at the loss of the 'low-pressure' light.
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Join Date: Jan 2015 Location: Maryland
Posts: 219 Thanks: 12 Trader Rating: 0 ![]() | Re: fitting rev counter There are few combined oil pressure/temperature sensors out there, but the cheapest I've seen is ~$100. With one of those you could make due with only a tee (and not drilling out the pan). You'd get circulating temp instead of bottom of pan temp. A little more accurate depending on how exacting you are. |
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Join Date: Jan 2015
Posts: 1,461 Thanks: 61 Trader Rating: 0 ![]() | Re: fitting rev counter
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Join Date: Jul 2012
Posts: 2,828 Thanks: 224 Trader Rating: 0 ![]() | Re: fitting rev counter It looks like your speed is 'mechanical'---am I correct?
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Join Date: Jan 2015
Posts: 1,461 Thanks: 61 Trader Rating: 0 ![]() | Re: fitting rev counter My spare matching set is indeed a mechanical speedometer- direct swap for the existing unit
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Join Date: Jul 2012
Posts: 2,828 Thanks: 224 Trader Rating: 0 ![]() | Re: fitting rev counter What size is the speedo Andrew? Would you sell it individually, or only as part of a set?
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