Hey there Guest!
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
Hi all
I would like to pass along some interesting information relating to TR4 and 4A wiring. I have an early 65 4A #CT55091. I bought a new harness many years ago and now I am installing it.
Comparing the wiring diagram from the manual and the one published by Dan Masters, I have discovered some differences that may raise questions.
TR Manual: Horn powered from starter solenoid, no relay
6 lamps powered from rheostat
No wiring for flasher repeater in sidelamps
No provision for two speed wiper motor (ask me for exact wiring)
I had to run another wire from wiper motor B/G to terminal 6 on switch
Mix-up in L.H. and R.H. description of direction indicator (#41,42 and 47,48)
Masters:
Horn powered from voltage regulator terminal A1 with relay
8 lamps powered from rheostat (not sure what the other two are)
The Masters TR4 diagram more closely fits my 4A in parts, and not in other parts.
There may be other discrepencies since I still have to finish tail direction and brake and license lamps.
Finally, using my Fluke meter to chase continuity I sometimes had problems with oxidized contacts and bad connections. The ignition warning lamp was the poster case of a bad contact and sent me up the wall.
Hope this helps someone
Al Shoop
I would like to pass along some interesting information relating to TR4 and 4A wiring. I have an early 65 4A #CT55091. I bought a new harness many years ago and now I am installing it.
Comparing the wiring diagram from the manual and the one published by Dan Masters, I have discovered some differences that may raise questions.
TR Manual: Horn powered from starter solenoid, no relay
6 lamps powered from rheostat
No wiring for flasher repeater in sidelamps
No provision for two speed wiper motor (ask me for exact wiring)
I had to run another wire from wiper motor B/G to terminal 6 on switch
Mix-up in L.H. and R.H. description of direction indicator (#41,42 and 47,48)
Masters:
Horn powered from voltage regulator terminal A1 with relay
8 lamps powered from rheostat (not sure what the other two are)
The Masters TR4 diagram more closely fits my 4A in parts, and not in other parts.
There may be other discrepencies since I still have to finish tail direction and brake and license lamps.
Finally, using my Fluke meter to chase continuity I sometimes had problems with oxidized contacts and bad connections. The ignition warning lamp was the poster case of a bad contact and sent me up the wall.
Hope this helps someone
Al Shoop
A friendly reminder - be careful what links you click on here. If a link is posted by someone you don't know, or the URL looks fishy, DON'T CLICK. Spammers sometimes post links that lead to sites that can infect your computer, so be mindful what you click.