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Generation 1 Pajero NA - NG Models 1983 - 1991

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  #1  
Old 26-09-18
Craig Williams Craig Williams is offline
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Default Remove main instrument cluster: Tacho working intermittently

To remove the main instrument cluster to repair the tachometer which was working intermittently due to a bad electrical connection as it is 30 years old and the contacts needed cleaning. Part 1
IMG_1175v2.jpg
Lever up the rear cover
IMG_1174.jpg
There are two clips just raise it vertically
IMG_1173.jpg
Now take out two Philps head screws at the base (and on either side) of the instrument cluster
IMG_1172.jpg
And the Philips head screw at the rear of the gauges (you can see it by looking through the front window)
See Part 2 (next post)
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  #2  
Old 26-09-18
Jones12 Jones12 is offline
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Cheers!
Need to do this to replace a few globes!
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  #3  
Old 26-09-18
Craig Williams Craig Williams is offline
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Default Remove main instrument cluster: Tacho working intermittently Part 2

Once you have removed the rear cover and the main cluster is loose.
1) Reach over the back top left corner (as you sit in the drivers seat) and disconnect the speedometer cable by depressing the white clip and wiggle and pull it off backwards (towards the windscreen).
2) Pull off the round white plug, there are no clips it just pulls off.
3) Next, up to the right the small plug and large rectangular one. For these and the remaining plugs depress the clip and wiggle them off.
4) Next go to the bottom left corner and disconnect the blue and then green plugs.
5) Finally, the bottom right two white plugs which were the ones I found most awkward to release!
View of rear of gauges
IMG_1170v2.jpg
The tacho runs off the ("female") centre round plug (the white one with all the yellow wires running into it). You can also access any blown globes, they are mostly at the centre bottom of the main instrument cluster. There are ones on each extreme LH and RH side as well. This photo needs to be rotated 90 degrees clockwise.
Clean the copper "male" pins with wet and dry sand paper
IMG_1169v2.jpg
Also spray WD-40 into the female plug. You can see the white "female" plug in this photo to the top right of that main centre hole. This photo needs to be rotated 90 degrees anti-clockwise.
Temporarily connect the white round centre plug once you have cleaned up the connection and start the engine to test and see if it now works. If it does re-assemble in reverse order!

Last edited by Craig Williams; 26-09-18 at 11:43 PM.
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  #4  
Old 27-09-18
Jeffrey Jeffrey is offline
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Default Tacho

Hi I had my speedo and tacho done cost $200 but I have had no trouble and I did them 3 years ago.
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  #5  
Old 27-09-18
Craig Williams Craig Williams is offline
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Yes well our gauges are getting very old so need servicing. The one I work on is my son's, an Import SWB 1988 TDI 2.5L

Last edited by Craig Williams; 27-09-18 at 11:13 PM.
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  #6  
Old 11-10-18
98NL GL 98NL GL is offline
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Thanks Craig,

Nice clear write up. I have similar issue and you have given me the courage to attempt it this weekend.

cheers
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Old 12-10-18
Pajez Pajez is offline
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Nice write up. thanks for giving us some info
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  #8  
Old 13-10-18
Craig Williams Craig Williams is offline
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Quote:
Originally Posted by 98NL GL View Post
Thanks Craig,

Nice clear write up. I have similar issue and you have given me the courage to attempt it this weekend.

cheers
Let me know how you go fixing it
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  #9  
Old 22-10-18
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jacob.naturberg jacob.naturberg is offline
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Hej Craig, I've done as you said, but my tachometer is still just running sometimes. I don't really matter to me because I like to drive it as I feel it. Could be that the tacho has some defect contact in itself.

But does someone notice the engine roaring under 2.000 rpm from 3nd gear and higher? I thought that happens first under 1.000 rpm ...
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  #10  
Old 24-10-18
Craig Williams Craig Williams is offline
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Hi Frankie I would try again and get a scriber or rats tail files and or Wet and dry paper and sand and scratch around the connections and enlarge the male one and try and squeeze it into the female one to make it a tight fit. You need to clean it up better I would try again you should find it will work! cheers, Craig
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