• Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

MGB MGB 4-way fuse box question- 1974 MGB

wkilleffer

Jedi Knight
Country flag
Offline
Yet another post about my 74 MGB:

I just bought a new-to-me fuse box and cover for my 74 MGB. It looks to be in good shape, with no tarnishing. It's a far cry from the tarnished and paint-encrusted box that it's replacing. It came out of a Triumph, but is supposed to be the same as what's in a B. The trouble is, with the new box in, the right side tail-lamps don't work. The left ones are fine, and the brake lights work fine on both sides.

I put it into the car where #1 is at the top, just like the old one. My concern is that I might not have plugged everything back in the correct place. What worked on the old box might not work on the new. Multitester says a healthy amount of voltage is coming in, and going out. Now, if I plug both sets of red wires to the top terminals, all the lights work. I thought that one set plugged to the top terminal and the other to the second one.

If anyone could post a photo of what a properly installed fusebox looks like for a late chrome-bumpered car, I'd be most appreciative. I tried a web search, but got nowhere, and neither Haynes nor Bentley show the 4-way box in any detail.

Thank you,
 

AlanT

Jedi Trainee
Offline
A triumph fuse box is NOT the same as an MG fuse box. If you look on the back side of the MG fuse box , you will notice that the MG fuse box has a jumper that splits the power from the headlamp switch to the two top fuses. You can get the same effect by making an external wire that joins the two top terminals.

Alan T
 

tony barnhill

Great Pumpkin - R.I.P
Offline
If it came out of a Triumph, it doesn't matter how the MG box was hooked up, the Triumph wil be different....were it me, I'd sell it on ebay & buy the correct one....I've got a drawer full (self-serving self advertisement)
 

Scott_Hower

Luke Skywalker
Offline
[ QUOTE ]
If anyone could post a photo of what a properly installed fusebox looks like for a late chrome-bumpered car, I'd be most appreciative. I tried a web search, but got nowhere, and neither Haynes nor Bentley show the 4-way box in any detail.

Thank you,

[/ QUOTE ]

Here's a photo of my (dusty) 73 MGB. I just replaced the fusebox. Probably the same thing you've got - Triple C was having a sale on new Lucas fuseboxes at Carlisle and it was too good to pass up. You need a heavy gauge jumper to bond the top two lugs on the left side (top left in the photo). Yeah, I know, it should be a different color wire, I didn't have any around. I also cut the female spades off and resoldered new ones; you might want to consider doing that too while you're at it.

fuse.jpg
 
OP
wkilleffer

wkilleffer

Jedi Knight
Country flag
Offline
[ QUOTE ]
[ QUOTE ]
If anyone could post a photo of what a properly installed fusebox looks like for a late chrome-bumpered car, I'd be most appreciative. I tried a web search, but got nowhere, and neither Haynes nor Bentley show the 4-way box in any detail.

Thank you,

[/ QUOTE ]

Here's a photo of my (dusty) 73 MGB. I just replaced the fusebox. Probably the same thing you've got - Triple C was having a sale on new Lucas fuseboxes at Carlisle and it was too good to pass up. You need a heavy gauge jumper to bond the top two lugs on the left side (top left in the photo). Yeah, I know, it should be a different color wire, I didn't have any around. I also cut the female spades off and resoldered new ones; you might want to consider doing that too while you're at it.

fuse.jpg


[/ QUOTE ]

Don't know why you're upset about dust in the engine compartment. Yours looks much better than mine. Someone painted mine black without removing anything, which is why I'm replacing the fusebox in the first place.

Thanks for posting this. It was a real help.
 
Offline
I like the "not so" secret extra key hiding place. /ubbthreads/images/graemlins/wink.gif
 

DrEntropy

Great Pumpkin
Platinum
Country flag
Offline
The factory would do that "back when" Kenny... Just not with that "fancy-schmancy" key. /ubbthreads/images/graemlins/wink.gif
 

Scott_Hower

Luke Skywalker
Offline
[ QUOTE ]
The factory would do that "back when" Kenny... Just not with that "fancy-schmancy" key. /ubbthreads/images/graemlins/wink.gif

[/ QUOTE ]

... and that fancy-schmancy key is just for show. When I had it cut, I told the kid at Sears to just randomize the teeth. I have a duplicate of someone's miscut house key scrwed inside the fender well. /ubbthreads/images/graemlins/laugh.gif
 

DrEntropy

Great Pumpkin
Platinum
Country flag
Offline
Clever Lad.
 
Similar threads
Thread starter Title Forum Replies Date
C MGB 1977 MGB Electrical Problems - fuse box MG 4
E MGB help! fuse replacement 77 MGB MG 5
CJ Burton MGB-GT Bolts for INERTIA STARTER on 1966 MGB GT MG 7
M MGB Ground polarity '67 MGB MG 2
M For Sale 1978 MGB MG Classifieds 0
Carlbanan56 MGB MGB oil consumption MG 5
A Wanted 1970 MGB - Emissions Parts MG Classifieds 3
C MGB Re strapping a MGB seat bottom MG 2
Simmo MGB Re Engined MGB MG 4
Carlbanan56 MGB MGB rear break rebuild MG 6
C Wanted Early MGB soft top and/or tonneaus, condition not very important MG Classifieds 0
Carlbanan56 MGB Mgb turn signals MG 17
J MGB 1970 MGB Steering Lubrication MG 1
C Wanted Wanted: 1977 to 1980 MGB Dashboard MG Classifieds 0
L SOLD!! For Sale MGB Hardtop MG Classifieds 3
EvansClassicCars For Sale 1980 MGB for sale MG Classifieds 0
J MGB Tire pressure for 1980 MGB MG 14
5 Wanted Wanted 1966 mgb banjo type axle rear hub MG Classifieds 0
I MGB Purchase of 1972 MGB Roadster MG 3
C MGB-GT MGB-GT Front Ride Height MG 0
J MGB Advice for new MGB owner? MG 16
D Wanted Wanted: Chicklet Headrests for MGB/C! MG Classifieds 0
Editor_Reid MGB Anders Clausager's "MGB" book MG 4
J MGB 1966 MGB won't start MG 1
Erica General MG Oil Drain Valve -- mine is an MGB, but they have others MG 3
TunaJ Will MGB Upper Seat Runners work with Midget seat rails? Spridgets 1
Erica MGB Carburetion and MGB fuel economy. MG 0
wkilleffer MGB MGB clutch slave bleed driving me nuts MG 38
R MGB side chrome installation MG 4
C MGB MGB MG 5
3798j Off Topic MGB at the Drive in Bank MG 1
wkilleffer MGB 1974 MGB clutch master cylinder questions MG 1
Rut MGB 62-67 upper MGB steering shaft MG 3
VeeCee MGB 1974 MGB Roof Installation MG 0
J MGB Just bought a 1966 MGB MG 50
T MGB MGB hoses MG 6
AngliaGT ANOTHER TR6,& an MGB Spotted 0
G MGB Sorry from the Newbie...Clutch gone on 78 MGB MG 17
Briancole702 MGB-GT 71 Mgb gt no gas in float bowls MG 1
Ranger68 Wanted 1969 MGB Sun Visor Wanted MG Classifieds 0
R MGB MGB Roadster Door Panel Speakers MG 9
DrEntropy MGB Good video on the MGB MG 0
adcronin For Sale MGB Turn Signal (lights, horn, indicator) Switch, New for 62-67, also Sprite MK 3 & 4, MIDGET MK 2-3 thru 67 MG Classifieds 0
J Wanted 1969 MGB Roadster sun visor clip MG Classifieds 4
JohnGone MGB 1980 MGB Spark Plug recommendations MG 6
R MGB 1972 MGB Defroster Hose MG 2
T For Sale MGB Black Label Overdrive For Sale Or Trade For New RB Parts MG Classifieds 2
T MGB-GT cant rails on 1967 MGB GT MG 12
JohnGone Wanted '80 MGB without seat belts? MG Classifieds 3
JohnGone MGB Help getting my 1980 MGB to pass CA smog test MG 19

Similar threads

Top