1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

need a tach

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Old 09-10-2009, 08:59 PM
cumminskid92's Avatar
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Default need a tach

i really need a tach but i dont have to much money to spend. does anybody know where i can get a new or used at a decent price
 
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Old 09-11-2009, 08:49 PM
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Your best bet is to keep a eye on the classifieds and ebay. You can use just about any diesel tach and I have even seen some use a gas tach, don't ask me how.
 
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Old 09-11-2009, 10:09 PM
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i've been currious about using a gas tach... i think its abit of a waste tho... only being albe to use a third or so of the tach's sweep
 
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Old 09-12-2009, 09:27 AM
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Originally Posted by tower_ofpower
i've been currious about using a gas tach... i think its abit of a waste tho... only being albe to use a third or so of the tach's sweep
Yeh I agree but you can get a gasser tach for ALLOT cheaper then a Diesel tach.
 
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Old 09-12-2009, 09:40 AM
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Tiny Tach......do a search for it on here.....
 
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Old 09-12-2009, 09:53 AM
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Non-intercooled trucks have no engine position sensor on them, so you have to buy a tach with a sensor included; either a TinyTach with a injection-line clamp, an alternator-based tach like Autometer's, or a tach that comes with a couple magnets to glue onto your harmonic balancer.

Intercooled trucks have a sensor in them stock that can be plugged into various tachometers.
 
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Old 09-12-2009, 10:19 AM
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The signal is only 5 volts from the pcm on factory equipped trucks. Most gasser tachs will not read that signal.
 
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Old 09-12-2009, 10:55 AM
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Originally Posted by Begle1
Non-intercooled trucks have no engine position sensor on them, so you have to buy a tach with a sensor included; either a TinyTach with a injection-line clamp, an alternator-based tach like Autometer's, or a tach that comes with a couple magnets to glue onto your harmonic balancer.

Intercooled trucks have a sensor in them stock that can be plugged into various tachometers.
Exactly, I was gonna do the tiny tach but they did not have a backlit one at the time. I think they do now.

Originally Posted by Richie O
The signal is only 5 volts from the pcm on factory equipped trucks. Most gasser tachs will not read that signal.
Yeah you can buy a box to make it work but by the time you do that you have spent more then just getting a diesel tach.

Here is my Isspro I got from a vendor on here. I was very happy. As Begle said if I had an intercooled truck it would have been plug and play. I have a non-intercooled through so I got my reading off teh harmonic balancer.

https://www.dieselbombers.com/5-9l-r...uge-mount.html
 
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