What is that absolute easiest way to install a tach on a 6V92 including bluetooth, hard wired and whatever else system there may be out there? Of course it should be fairly accurate too. This is based on there never was a tach installed in the first place.
Does the left cam have a cap on the outside or a plate that is where most drive from with a pulse generator or you can drive it off the back of the blower if the cover is there, then the least favorite place of mine is off the R terminal on the alternator
On a mechanical diesel you can do a mechanical tach, mechanical to electric sensor, or electric tach from the alternator. If your engine doesn't have a cam drive on the front gear cover or a blower drive already, make up a strap across the front cam pulley, install a cable drive and get a 1:1 cable drive tachometer. Or install a tach drive transponder instead of a cable drive and get an electric tach (works better if you want the tach up front as opposed to in the engine bay with a cable). Or if your alternator has an R-terminal, get a suitable electric tach and figure out the conversion you need based on how fast your alternator is geared to spin.
How simple it is depends on your attitude towards bodging. I personally would do a cable drive tach and leave it in the engine compartment (or just attach it when I wanted to tune up the engine). My engine has a blower drive tach drive, and I have a cable drive tach or two, so I just need to make an adaptor. I have no need of a tach for actual driving around.
Brian
You can use the magnetic pickup also,your 6v92 may have a plug you remove on the left side above the motor mount on the bell housing to remove and install the magnetic pickup some engines have one some don't but there will be a indent to drill and tap
Not familiar yet, but as above I would first look into available ddec type signals already plug playable. Or where plugs maybe and if that signal type can be used, I think that's what you meant, so I will take a look around just for interest maybe can help. The Allison is a question also in some models not sure there. Sometimes signals also could be tapped from a treadle module on some, just a thought there.
Floyd
Ok, so for the DDEC II 8v92 is there already a place to connect a tach?
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If you have a DDEC II or newer just buy a Silverleaf then you have a tach, plus a whole host of information at your fingertips.
Do they cost more than what I paid for the bus?
(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fuploads.tapatalk-cdn.com%2F20160207%2F3db41ca076ca715c98da50da7a3e8196.jpg&hash=62386aaf82a2467d23403065a025a6a91fd71480)
Relatively cheap
Lee that is seriously cool, but it has to wait it's turn in line for my build up. Again back to the hard work and sweat.
Though I would like to see another pic of it during the 60 series holeshot ;D
good day
Floyd
I use a magnetic sensor off the front pulley of the engine using two magnets and setting the tach at two to one. Check with Isspro. 100% accurate.
--Geoff
Quote from: Geoff on February 07, 2016, 12:13:41 PMI use a magnetic sensor off the front pulley of the engine using two magnets and setting the tach at two to one. Check with Isspro. 100% accurate.
--Geoff
Accurate and simple, both of which are good things in my estimation.
QuoteYou can use the magnetic pickup also,your 6v92 may have a plug you remove on the left side above the motor mount on the bell housing to remove and install the magnetic pickup
luvrbus, is this the spot you were thinking of?
thx much :)
(also, shouldn't there be a plug there regardless? there isn't one now)
Quote from: digesterman on February 07, 2016, 02:17:46 AM
Relatively cheap
An engineers dream panel!
Is it hard wired from the pick up(s) to the panel or BT or other radio wave?
Mine has that hole on drivers side plugged with plastic plug.
Its a hard wired setup, some how in with our ddec, they show to have a junction stud connection in the front and rear box's.
possibly A,C,D stud in rear and circuits 18a, C, D,
with descriptions: tach or speedo on A with b-w wire
tachometer on C with w-b wire
tach or speedo on D with brn-w wire
I think its lower right connected on rear jct box housing possibly.
Not sure on cam or blower drive signal pickup location
I'm looking at some of this wiring from an 89 mc9 and that for sure could be updated, possibly. so consider that with a cold one and a look see
Floyd
On a DDEC the tach is wire 505 , the tach feeds from cavity K-1 on the 30 way connector from the connector forward is the OEM responsibility,if K-1 has a plug in the cavity then it is not wired for a tachometer,remove the plug and install a DD connector with a wire to the front then you have power for a tach if it is a DDEC
OK, ya lost me at "cavity K-1" Cliff.
Jim if your looking around that ddec/ecm on your motor, the passenger side has the carefully tightened wire connectors keeping them in place.
If no wire, a rubber plug is used to seal that cavity and common.
http://hubpages.com/autos/detroit-diesel-ddec-iii-and-iv-ecm-vehicle-interface-connector#slide10852834 (http://hubpages.com/autos/detroit-diesel-ddec-iii-and-iv-ecm-vehicle-interface-connector#slide10852834)
hth
Floyd
Ah, that is why I posted the easiest way because I never had gotten into any engine electronics so I pretty much know jack about any ECMs.
Probably should have said first, Im positive that computer system doesn't support any blue tooth tech, or any global monitoring. I could be wrong on monitor, but not worth considering if it did have it. Only outfit that if avail may have had that would've beenDoD
If one could score a "pro-link" diagnostic tool that was updated and cheap, I would make myself a happy camper, and I would just keep it hooked up for cool factor 8)
So I think a schematic just to save on new wire runs from rear to front is best point to start, and heck most likely some banded already, and able to "unhook" to use.
If one wants to be independent of ddec because it doesn't have a whole lot in earlier years, but more than many then. ( I mean the blinking code light ) uh! totally cool and welcomed even now.
Crazy you can buy a can-bus diagnostic monitor for cars for under a Benny but not ddec.
So anyway an option worth checking out and some use I'm sure around here is VDO.
A call to VDO and using one of their Tachs with a flywheel/bellhousing magnetic pickup sensor.
good luck! if ya find some good stuff keep us posted
Floyd
I use a OBD ll scanner on a DDEC 1,I was never able to find a Kent/Moore reader for the early DDEC they only made a 1000 of the scanners and I have a friend that has number 2
With buying one it's a good idea to have the adapter for a 12 pin dlc for my 92model, maybe the newer models have one of the circle shape data link connectors. I wish I had purchased my last innova scanner with some other adapters.
Is that scanner give fault codes and some other likes, maybe ddec edition. curious there
Thanks
Floyd