Results 1 to 12 of 12

Thread: A brief informational for v6 owners looking to install a sport cluster.

  1. #1

    Array
    Status
    Offline
    Join Date
    11-06-2012
    Posts
    76
    Location

    Vista CA
    Vehicle

    1991 Mitsubishi Mighty Max
    Engine

    6G72

    A brief informational for v6 owners looking to install a sport cluster.

    For those of you who are interested in this swap and have the same truck here is a little informational so you can avoid one of the pitfalls I ran into. I recently installed a sport cluster in my 1991 v6 4x4 mighty max, got everything installed including the oil pressure sending unit and everything worked great, except the tach and that really sucked since it was the main reason for doing the swap so I hit the books, well the internet actually. From everything I found it looked as if the truck did not come pre-wired for the tach however after 4 trips to the wrecking yard and a day of confusion I found out what the problem was. It turns out the trucks, at least the 4x4 v6's and I'm pretty sure all v6's come pre wired for the tach (I cannot speak for the 4 cylinders). The only thing is some of them (like mine) are missing a key component that makes the tach work. Pictures of this device and the mounting location are attached. Now if you need this device the V6 montero has the exact same device in the same location as our truck and it is a direct fit and of course the max's with a sport cluster do as well. If you really get stuck in a bind and cannot find one I have a couple extra and I will mail one to you free of charge If you PM your address to me (keep in mind they came off of a used vehicle and are not new). I hope this helps someone out because I could've used the info when I went to install my cluster. Click image for larger version. 

Name:	IMAG0520.jpg 
Views:	264 
Size:	40.4 KB 
ID:	4681Click image for larger version. 

Name:	IMAG0521.jpg 
Views:	295 
Size:	40.6 KB 
ID:	4682Click image for larger version. 

Name:	IMAG0522.jpg 
Views:	272 
Size:	60.7 KB 
ID:	4683Click image for larger version. 

Name:	IMAG0523.jpg 
Views:	158 
Size:	46.8 KB 
ID:	4684Click image for larger version. 

Name:	IMAG0524.jpg 
Views:	148 
Size:	45.3 KB 
ID:	4685

  2. #2

    Array
    Status
    Offline
    Join Date
    04-01-2011
    Posts
    161
    Location

    Garden Valley, CA
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    6G72
    my v6 had this already. it seems like the more the rpms go up the more inaccurate the tach gets with mine, or my truck revs real quick and can handle 8k rpms
    [SIZE="6"][/SIZE][COLOR="red"][/COLOR] smile, you look suspicious

  3. #3

    Array
    Status
    Offline
    Join Date
    11-06-2012
    Posts
    76
    Location

    Vista CA
    Vehicle

    1991 Mitsubishi Mighty Max
    Engine

    6G72
    For some reason some of the trucks have them and some don't. My truck was one of the ones without the little part, and maybe something webt bad on your system?

  4. #4

    Array
    Status
    Offline
    Join Date
    08-25-2012
    Posts
    146
    Location

    Winter Park, FL
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64
    what do these clusters go for?

  5. #5

    Array
    Status
    Offline
    Join Date
    11-06-2012
    Posts
    76
    Location

    Vista CA
    Vehicle

    1991 Mitsubishi Mighty Max
    Engine

    6G72
    On ebay there is one listed for 70 bucks which I think is outrageous since it doesn't even come with the oil pressure sending unit but if you can find one in a scrap yard they are usually anywhere from 15 to 40 dollars depending on how the person you pay feels that day. I got mine for $35 and that included an electrical warranty.

  6. #6

    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    51
    Location

    Hagerstown, MD
    Vehicle

    1988 Dodge Ram 50
    Engine

    G63B
    It looks like a capacitor (condenser). A tach (most basic design) takes voltage pulses as input, and averages them out to a voltage level that triggers a current amplifier that drives the meter movement (or, with analog-to-digital conversion, to some digital value equivalent). You can pick up pulses from the input side of the coil, assuming you don't load-down the trigger circuit. Electronic circuits are very sensitive to the addition of components that draw current. In a meter movement, full-scale deflection of the needle is rated in milliamps, typically, something like 10 ma or so. Deflection of the meter has to be calibrated to produce accuracy. A capacitor shunts pulse duration, making the pulse more of a spike. At some value of capacitance, input to the meter circuit averages out correctly for full-scale deflection at max rpm. $35 is an outrageous amount of money for a capacitor, but if it works, it works.

  7. #7

    Array
    Status
    Offline
    Join Date
    11-06-2012
    Posts
    76
    Location

    Vista CA
    Vehicle

    1991 Mitsubishi Mighty Max
    Engine

    6G72
    Quote Originally Posted by manorchurch View Post
    It looks like a capacitor (condenser). A tach (most basic design) takes voltage pulses as input, and averages them out to a voltage level that triggers a current amplifier that drives the meter movement (or, with analog-to-digital conversion, to some digital value equivalent). You can pick up pulses from the input side of the coil, assuming you don't load-down the trigger circuit. Electronic circuits are very sensitive to the addition of components that draw current. In a meter movement, full-scale deflection of the needle is rated in milliamps, typically, something like 10 ma or so. Deflection of the meter has to be calibrated to produce accuracy. A capacitor shunts pulse duration, making the pulse more of a spike. At some value of capacitance, input to the meter circuit averages out correctly for full-scale deflection at max rpm. $35 is an outrageous amount of money for a capacitor, but if it works, it works.
    Alright, that's good to know but slightly over my head haha and I payed $35 for the cluster Ecology gave me the capacitor for a dollar.

  8. #8

    Array
    Status
    Offline
    Join Date
    02-01-2014
    Posts
    15
    Location

    New Orleans, LA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64
    These are called Noise filters. They were notorious on the 90 DSMs and one of the main reasons a lot of people don't get a 90. You can simply bypass this little guy by making a jumper wire into the harness that it plugs into. At least you could on a 90 DSM (I have a 90 Eagle Talon).

  9. #9

    Array
    Status
    Offline
    Join Date
    04-10-2011
    Posts
    256
    Location

    WA
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    6G72
    Does your sport cluster have a 4x4 indicator? The only clusters with tachs that I have seen are 2 wd or at least that is what I thought.
    1990 MM 4x4 3.0
    1991 MM 4x4 3.0 Diamonte
    1994 MM 2wd (work in progress)

  10. #10

    Array
    Status
    Offline
    Join Date
    02-01-2014
    Posts
    15
    Location

    New Orleans, LA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64
    The truck I just got my cluster from was 2wd. It was a sport model max. 94.

  11. #11

    Array
    Status
    Offline
    Join Date
    07-23-2015
    Posts
    1
    Location

    Fresno, CA
    Vehicle

    1990 Mitsubishi Montero
    Engine

    6G72
    Hey Iceman, thanks for the post. You helped me solve my tach problems on my 1990 Montero RS. Do you still have any of those LC filters? I would be interested in buying one off of you. The white wire on mine is completely lopped of and there is really no room to solder a new wire on.

    Thanks!

  12. #12

    Array
    Status
    Offline
    Join Date
    11-06-2012
    Posts
    76
    Location

    Vista CA
    Vehicle

    1991 Mitsubishi Mighty Max
    Engine

    6G72
    Yes I'm pretty sure I have one or two of them laying around somewhere although it might take some digging lol. I will look around today and if I find one ill send you a message.

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •