Dash and Cluster Removal

The Speedometer, Odometer, and Gas Gauge no longer function for whatever reason I do not know. To get to the bottom of it and determine if its a problem with the cluster or a problem with the cable or the cluster itself. The 1987 Supra has a cable coming from the manual transmission that leads to the cluster and drives the speedometer, and odometer. I tested this by taking out the cluster, and driving the input to the speedo with a cordless drill. With the drill turning at full speed the speedometer gave a readout of 20 mph and also the odometer advanced. You can tell by looking at the picture of the cluster in the dash, and the cluster after I did the test. While I have it out this would be a good opportunity to check the fuel sending unit. I have a feeling it may be the cluster because all of the gauges rest in the down position and the gas gauge shows as always full. In fact the sending unit may work because the low fuel light will come on if the gas is low in the tank.


I have a feeling changing the speedo cable is going to be a lot of work, but having a working speedometer will be nice. Gas gauge working isn't really that big of a deal to me, but getting everything in working order will be nice. I also got the opportunity to buy a complete 7m-gte engine for $250, it has 86000 miles so it may be worth picking up.

 

OMG original 1987 stereo. I don't like it, but at the same time I've yet to find an aftermarket headunit that I have actually liked. Maybe I will have to work on getting a carputer installed in that double din the stock radio sits in now.

Cluster cover is off and the last 3 screws are in. It wasn't as bad as I thought to get out. Getting it back in will be a big hassle I'm already sure. It is a little tight, and getting all the connections back in won't be fun.

This little knob inside the green cup turns when the car is moving forward. I hooked up a drill to the cluster speedometer to see just how fast it spins. With the drill at full speed I got the speedometer to 20 mph.

 Here the cluster is fully removed and disconnected. It was really dirty back there.

 Gas gauge always displays full. Fuel sender unit works because the empty light comes on when the tank is really low.