CQGT wrote:Glenn,
My GT had the angle drive on the back of the speedo head. My observation was that it reduced the angle the speedo cable when it went through the firewall. As all models have the fusebox mounted in front of the instrument panel, the cable has to traverse at an angle that is too much and in later years jams and breaks. It goes the same, for the angle from out of the speed driven gear, being a reduced radius. Creating a larger arc or longer cable will alleviate the problem on the transmission end.
The speedo head on the GT has been repaired. I sent it to Rockhampton to a instrument repairer and with the internals of a standard speedo he repaired it keeping the original face. So. I'm back to an acute angle on the cable. Got the brain ticking over for a modification. And. My Gt hasen't got the "speed sensor".
Thanks for the tip on the fuel sender. My first car, 67 PR20, had sender problems found that the terminal on top of unit was shorting out. I drilled the rivet out and inserted a nylon bush and used a fine thread screw and bolted all together.
Having trouble with my sedan,68/9 PR20, with fuel sender. DAVO gave me a sender that may get me out of trouble. Will look at your 'fix' and use his unit to repair the problem. Took the 1 out of the GT and doing same. Or should I say. Not doing anything.
If dave,PR95 and yourself received operators manuals with your cars to have a look at the capacity listed. I never got 1 with mine. Have been looking. Maybe someone with a parts book for GT can have a look to see if there are more than 1 gasolene tank available. Diesel will be listed as well.
Dave.
Hi Dave, there is another difference with speedo in that the cable on the PR60 and I assume late models, comes out out through the flat section of the firewall. ie adjacent to the coil. Pretty sure earlier models, it comes out of the more vertical section under the windscreen ?. { or my memory is shot}
For such a simple fuel gauge system there are a number of possible problem areas. But especially if you have an ohm meter, the sender can be diagnosed fairly easily i think.
Conversely, if you get/buy a 47 ohm and a 150 ohm resistor from Jaycar or similar place, you can disconnect the sender and fit either resistor to ground and the gauge should show half or empty.
I have the owners manual for the PR60, in japanese of course and unable so far to decipher a few things.
What i can find in the general description of the engine etc it 'SU" carbs and on a line under it, 46L which suggests maybe it is the tank capacity ? Normal is 40litres frommemory (8.8 gallons) so this would make it close to 10 gallons.
One thing I can't find is engine oil capacity with filter change. I changed oil and filter and had to add about 4.5 litres of oil.
good luck with the gauges.
glenn
. Your car looks great in the photos and most of is original paint. Its been a journey of discovery at every turn and working out a solution to each problem, red tape ones included. Its weird that you are not allowed red calipers but painted red brake drums are OK.
it back 
