General Tech 2500S starter motor and fuse box questions

[warmhands]

Hi all
first time poster, so apologies for wordiness.
I have a 1977 Triumph 2500S (right hand drive) with manual overdrive and I am having trouble with the starter motor.
I tried to start it and there was a pop and then everything was dead. No dash lights or anything.
I pulled the starter motor out and it was functioning properly when connected up to a battery.
I have tried to re-install it, but have not been able to get anything to work.
I have power to the positive side of the starter, but the other wires had all been pulled off when I last drove it into the parking spot (they got caught up on some long grass I think).
The wire from the coil to the starter has now broken off as the plastic coating is brittle and all cracked along its length. I have put in a new wire of a thicker gauge straight from the coil +ve to the starter, but I don't know where it connects to the starter solenoid. My manual doesn't show it and merely says "take note of the wiring connections before removal" which was never possible :-(
The SWITCH WIRE is connected to the spade connector and the positive lead from the battery is connected to the threaded terminal. The main lead from the main threaded terminal to the battery and another to the resistor is okay.
There are a number of other wires (brown coloured insulation) close to the starter motor, which I assume are meant to be for the lockout for an automatic transmission, but am unsure if they are just supposed to hang there.
I also can't find the fuse box as it is shown in the workshop manual on the front right inside guard, but on my car it's not there as the airfilter housing takes up that space. Is there a different location in later models? I have looked in all the places I can think of and the manuals I have may be for older models, so I'm feeling a bit lost atm
** To sum up, is the threaded terminal the one that goes to the coil and does it have a special fitting to account for the recess around the terminal?
** Where do they hide the fuse box in a 1977 rhd 2500S manual ?
many thanks if you're able to help
Keith

 

[TomMull]

First let me say that I know nothing about the Triumph 2500S but I do think it's kind of cool.
A general comment I might throw out is that a pop and then nothing when hitting the starter switch of is often a sign of a loose or bad connection in the wiring. Check battery terminals, grounds and any other heavy wires in the starter circuit.
Tom

 

[warmhands]

thanks Tom,
yep bad connection AND old brittle wiring. The car is now mobile again as of yesterday arvo, the local auto-electrician sorted it out in short order
atb
Keith

 

[bobhustead]

You really need a wiring diagram and test light. I do not know if thet offer a diagram for the 2500, but Prospero's Garage was publishing good, clear and large diagrams when I did my TR3. Also useful would be a chart that I think is in the hard copies of the Moss catalog which describes the ordinary uses/conditions of various colors of wire in these old Brits (hot, not hot, switched, fused, etc.) Message 3 was posted while I was writing, so I will not continue.
Bob