Rdhdfmn Posted November 2 Share Posted November 2 (edited) Hey guys. I have a 72 Mack CF600 Mack fire truck. It originally had a gas engine in it, but was later replaced with a straight 6 diesel. It didn't have a tach on the gas engine, but I was wondering if I could put one on the diesel engine í have now? Thanks Edited November 2 by Rdhdfmn Misspelled Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/ Share on other sites More sharing options...
Joey Mack Posted November 2 Share Posted November 2 (edited) is there a tach drive fitting under the injection pump? Edited November 3 by Joey Mack I made a Boo Boo Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561251 Share on other sites More sharing options...
Rdhdfmn Posted November 3 Author Share Posted November 3 Hey Joey. I really don't know. Do you have an idea what it might look like? Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561261 Share on other sites More sharing options...
Joey Mack Posted November 3 Share Posted November 3 https://photos.app.goo.gl/qcLuPSwJEs42sDbS9... I am not very strong in knowledge of the E-6 as I would like to be, but here is what is in my shop.. ENDT 673.. is this type what you have? you may have a cap over the hole. the tach is driven off the aux. drive shaft... Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561262 Share on other sites More sharing options...
fjh Posted November 3 Share Posted November 3 It’s usually mounted below the injection pump just below the fuel transfer pump and runs off the accessory drive! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561266 Share on other sites More sharing options...
Joey Mack Posted November 3 Share Posted November 3 fjh? did you see the pictures I posted for him? I expect him to have the same set-up.. Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561267 Share on other sites More sharing options...
fjh Posted November 3 Share Posted November 3 2 hours ago, Joey Mack said: fjh? did you see the pictures I posted for him? I expect him to have the same set-up.. sorry can’t open them they used to Make tack / fuel transfer combo a real pos! Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561274 Share on other sites More sharing options...
Joey Mack Posted November 3 Share Posted November 3 https://photos.google.com/share/AF1QipMChnyy0zyLEhLhqzPPmcXe4HDEUErugU4Xkpbnd6XMjvQOlgEeC5-6Fs0e5yn_6A/photo/AF1QipMyHPhar8sR9rVFr0x1fY-p1c7ovOdfSObZ_NAx?key=QjFVcGQ5THlITVdtT2MySFpCX2YwNFktLTBTZmpR https://photos.google.com/share/AF1QipMChnyy0zyLEhLhqzPPmcXe4HDEUErugU4Xkpbnd6XMjvQOlgEeC5-6Fs0e5yn_6A/photo/AF1QipOfzeZK7IXIojQbiSVkSDduaoNNvzZ9S54MjK8b?key=QjFVcGQ5THlITVdtT2MySFpCX2YwNFktLTBTZmpR 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561277 Share on other sites More sharing options...
Joey Mack Posted November 3 Share Posted November 3 I tried a new approach, can you see the pictures? Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561278 Share on other sites More sharing options...
Geoff Weeks Posted November 3 Share Posted November 3 Yep, and they are bigger as well. Many ways to add a tach. there are those that can be driven off an AC tap on an alternator, and you can drill and tap the bellhousing for a mag pick-up. Anything with a shaft that turns with the engine can be used, if you can attach a cable or electronic drive to it. Electronic works best if the shaft spins at a speed other than 1/2 crankshaft or crankshaft speed, as they are easier to calibrate. Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561279 Share on other sites More sharing options...
fjh Posted November 3 Share Posted November 3 Yup that’s it! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561280 Share on other sites More sharing options...
Rdhdfmn Posted November 4 Author Share Posted November 4 Thanks guys. I'll look and see what I have. Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561291 Share on other sites More sharing options...
mowerman Posted November 4 Share Posted November 4 Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561320 Share on other sites More sharing options...
1958 F.W.D. Posted November 4 Share Posted November 4 Does the pump panel have a tach? If so how is that driven? Quote TWO STROKES ARE FOR GARDEN TOOLS Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-561327 Share on other sites More sharing options...
Rdhdfmn Posted Sunday at 02:55 PM Author Share Posted Sunday at 02:55 PM 1858 that's a good question. I'll have to look and see if it does. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/74707-mack-cf600-series-tachometer/#findComment-562106 Share on other sites More sharing options...
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