TR7 & TR8 Forum
Redefining Fuse Box and Labelling the Strangeness
Posted by shakotko
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
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1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Jan 31, 2023 12:16 PM
Joined 7 years ago
151 Posts
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Hello TR7r's.
Well, it has been some time since we last posted on "Thinking about where to start restoring the TR7" from 2020. Huge success and been driving since.(Search the forum if you are interested). Thanks to all who helped out!
We are now onto fixing relays and intermittent flashers, horn, interior lights etc.
Wondering if you folks could help identify/confirm the 9 relays/switches in the dash?
I've labelled them 1 to 9 and have so far found them as follows on the Haynes electrical wiring diagram:
#1 Hazard Flasher Unit = #54 Haynes
#2 Headlamp Motor Circuit Breaker = #30 Haynes
#3 RH headlamp Run/stop relay = #29 Haynes
#4 Horn Relay = #57 Haynes
#5 LH headlamp Run/Stop relay = #31 Haynes
#6 Starter Relay = #3 Haynes
#7 ???
#8 Brake Light Switch = ? Haynes
#9 Nothing attached to it?
So far so good?
Well, it has been some time since we last posted on "Thinking about where to start restoring the TR7" from 2020. Huge success and been driving since.(Search the forum if you are interested). Thanks to all who helped out!
We are now onto fixing relays and intermittent flashers, horn, interior lights etc.
Wondering if you folks could help identify/confirm the 9 relays/switches in the dash?
I've labelled them 1 to 9 and have so far found them as follows on the Haynes electrical wiring diagram:
#1 Hazard Flasher Unit = #54 Haynes
#2 Headlamp Motor Circuit Breaker = #30 Haynes
#3 RH headlamp Run/stop relay = #29 Haynes
#4 Horn Relay = #57 Haynes
#5 LH headlamp Run/Stop relay = #31 Haynes
#6 Starter Relay = #3 Haynes
#7 ???
#8 Brake Light Switch = ? Haynes
#9 Nothing attached to it?
So far so good?
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
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1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Jan 31, 2023 12:18 PM
Joined 7 years ago
151 Posts
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
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1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Jan 31, 2023 12:21 PM
Joined 7 years ago
151 Posts
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Jan 31, 2023 03:29 PM
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Joined 13 years ago
2,824 Posts
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Judging by the fuses yours is late vehicles US model.
This is out of the Repair Operation Manual if that's of any help.
Michael
This is out of the Repair Operation Manual if that's of any help.
Michael
In reply to # 1948314 by shakotko
And the overview diagram of where most of this is located.....
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
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1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Jan 31, 2023 03:45 PM
Joined 7 years ago
151 Posts
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Darth V8R
Vance Navarrette
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Jan 31, 2023 09:10 PM
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#9 is the original turn signal flasher unit.
The original hazard flasher unit is #1.
It appears that #9 (original turn signal flasher) died and was replaced by #7, which is a generic 2 pin flasher unit from an auto parts store. This would explain why no wires are going to #9, as the wires have been rerouted to #7.
Vance
1980 Platinum Metallic TR8, frame off restoration, complete.
1974 Jensen Healey, now assembled and awaiting startup. =:-)
The original hazard flasher unit is #1.
It appears that #9 (original turn signal flasher) died and was replaced by #7, which is a generic 2 pin flasher unit from an auto parts store. This would explain why no wires are going to #9, as the wires have been rerouted to #7.
Vance
1980 Platinum Metallic TR8, frame off restoration, complete.
1974 Jensen Healey, now assembled and awaiting startup. =:-)
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
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1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Feb 1, 2023 05:58 AM
Joined 7 years ago
151 Posts
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
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1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Feb 1, 2023 05:15 PM
Joined 7 years ago
151 Posts
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Hmmmm, this is what happens when it is minus 10 outside and curiosity on our minds: Pulled the floor and dash.
If we are going to fix the wiring and fuse box, may as well be sure
.
Lots to work on: Good chance to clean out the pinecones, mouse crap, and explore a mysterious blue wire mashed into a connector and then used somewhere in the engine bay. Also, going to wire in a proper stereo with tweeters, door speakers and a subwoof under the seat. Going to clean up the carpets and try dying them back to blue much like R Truett did in part 11 of "Project TR7 shifting priorities".
If anyone has advice please chime in.
In your humble opinion, would you put down additional sound proofing before reinstalling the carpet? is it worth it?
Thanks,
If we are going to fix the wiring and fuse box, may as well be sure
.
Lots to work on: Good chance to clean out the pinecones, mouse crap, and explore a mysterious blue wire mashed into a connector and then used somewhere in the engine bay. Also, going to wire in a proper stereo with tweeters, door speakers and a subwoof under the seat. Going to clean up the carpets and try dying them back to blue much like R Truett did in part 11 of "Project TR7 shifting priorities".
If anyone has advice please chime in.
In your humble opinion, would you put down additional sound proofing before reinstalling the carpet? is it worth it?
Thanks,
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Feb 1, 2023 05:53 PM
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Joined 13 years ago
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Paul
I reckon the Jlue wire mashed into the connector to a Green wire is to power something only when ignition goes on with the key. Almost OEM quality in that connection it must be said.
)
Michael
I reckon the Jlue wire mashed into the connector to a Green wire is to power something only when ignition goes on with the key. Almost OEM quality in that connection it must be said.
)
Michael
In reply to # 1948573 by shakotko
Hmmmm, this is what happens when it is minus 10 outside and curiosity on our minds: Pulled the floor and dash.
If we are going to fix the wiring and fuse box, may as well be sure
.
Lots to work on: Good chance to clean out the pinecones, mouse crap, and explore a mysterious blue wire mashed into a connector and then used somewhere in the engine bay. Also, going to wire in a proper stereo with tweeters, door speakers and a subwoof under the seat. Going to clean up the carpets and try dying them back to blue much like R Truett did in part 11 of "Project TR7 shifting priorities".
If anyone has advice please chime in.
In your humble opinion, would you put down additional sound proofing before reinstalling the carpet? is it worth it?
Thanks,
If we are going to fix the wiring and fuse box, may as well be sure
.
Lots to work on: Good chance to clean out the pinecones, mouse crap, and explore a mysterious blue wire mashed into a connector and then used somewhere in the engine bay. Also, going to wire in a proper stereo with tweeters, door speakers and a subwoof under the seat. Going to clean up the carpets and try dying them back to blue much like R Truett did in part 11 of "Project TR7 shifting priorities".
If anyone has advice please chime in.
In your humble opinion, would you put down additional sound proofing before reinstalling the carpet? is it worth it?
Thanks,
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
Sign in to contact
1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Feb 3, 2023 02:04 PM
Joined 7 years ago
151 Posts
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Continuing to sort out some mysterious wiring. Seems its previous life(s) saw some splicing of turn signals and wipers switches.
Curious is anyone know what the two wires to the left of the steering column do? Black orange and Black Green.
Found them on the wiring diagram as #38 door switch and #39 Key Switch.
Thanks,
Curious is anyone know what the two wires to the left of the steering column do? Black orange and Black Green.
Found them on the wiring diagram as #38 door switch and #39 Key Switch.
Thanks,
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
Sign in to contact
1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Feb 6, 2023 07:04 AM
Joined 7 years ago
151 Posts
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If folks are curious, we put down a layer of sound barrier under the carpets. Rather easy to order (3 days from amazon.ca) and easy to install (2 hours). We preheated/warmed the sheets which made smoothing them out much easier.
Then pulled wires for future door speakers, dash tweeters, rear speakers and a small subwoofer.
Micheal, you'd be happy to know that we've sorted out the Rogue blue wire and restored to OEM standards
Then pulled wires for future door speakers, dash tweeters, rear speakers and a small subwoofer.
Micheal, you'd be happy to know that we've sorted out the Rogue blue wire and restored to OEM standards

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BG Dave
Dave G
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Feb 6, 2023 03:50 PM
Top Contributor
Joined 6 years ago
610 Posts
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In reply to # 1948928 by shakotko
Curious is anyone know what the two wires to the left of the steering column do? Black orange and Black Green.
Found them on the wiring diagram as #38 door switch and #39 Key Switch.
Thanks,
Found them on the wiring diagram as #38 door switch and #39 Key Switch.
Thanks,
Paul, the two switches work together to cause the buzzer to buzz if the key is in the ignition and you open the driver's door to leave.
Cheers, Dave
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
Sign in to contact
1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Feb 6, 2023 06:17 PM
Joined 7 years ago
151 Posts
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BG Dave
Dave G
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Feb 6, 2023 06:38 PM
Top Contributor
Joined 6 years ago
610 Posts
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In reply to # 1949576 by shakotko
Thanks Dave. The buzzer is unhooked and not really needed at this point, so will leave the wires "as is".
Dash is now back in, carpets complete, and new LED bulbs in the console. Will test run tomorrow night.
Dash is now back in, carpets complete, and new LED bulbs in the console. Will test run tomorrow night.
Sounds like you've been busy. Good luck with the test run!
about 3 weeks and 2 days later...
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shakotko
Paul Shakotko
Dartmouth, NS, Canada
Sign in to contact
1970 Triumph GT6+ (MkII) "Should Have Burned It"
1976 Triumph TR7 Victory Edition 1980 Triumph TR7 "Inca" 1980 Triumph TR7 |
Topic Creator (OP)
Mar 2, 2023 03:18 PM
Joined 7 years ago
151 Posts
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While not directly related to wiring, we decided to re and re the front end with new bushings and ball joints.
The picture tells the story between the old sway bar bushing and the new one.
Hope to reduce some of the 90kph steering wobble that we all know and dislike
The picture tells the story between the old sway bar bushing and the new one.
Hope to reduce some of the 90kph steering wobble that we all know and dislike

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