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Ralph H Member 
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Hi I tried searching but could not find full answer. What year MGB turn signal will drop into a 1974 JH. I understand it will need some modification to fitment to work 100%. but no mention of any wiring issues so is it a direct plugin also. Help appreciated Thanks. Any other recommendations for replacement appreciated |
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Frank Schwartz Member
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Moss Motors sells this...on mine, I had to exchange the plug as IFIC one is a female and one is a male...but that was no problem. Also the rotating collar in your original JH can be exchanged for the one in the MG unit...just be careful when doing this so when you remove the big silver plate,. that you do not let things fall out on the floor to be lost forever... Frank |
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Ralph H Member
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appreciate the reply but still need to confirm the corect year MGB switch. I did find a file on the JH facebook page that indicates a ‘77-‘80 MGB Turn Signal switch will work but this sort of concerns me as it is so much later than the 74 jensen. |
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redracer Member
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Assuming that's the correct years(and I would need to check again) you will still need to "open" it up to change the rotating collar as Frank said; however, unless you have a spare to look at, little springs and pieces that stick to the metal cover plate(you'll need to swap in your wiper switch) can be troublesome. I used to rebuild them(100s++) but now the black plastic itself has become too old/brittle to take the pins, etc. so I buy the "new" MGB/Midget ones and redo them to the J-H specs. Mike D'Olimpio at DELTA has them done as well, so if you're not too sure about this "project" give one of us a call. btw, you also will need to grind down the black plastic tab on the inner surface that gets clamped to our aluminum steering column; the Midgets had a slot for this piece so it would not rotate when placing pressure on either stalk. good luck, bruce |
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Rick in Miami Member
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I seem to recall that I had to rearrange several wires in the MGB connector to match up to the JH connector. |
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redracer Member
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Yes, that's correct. Just use the old harness to put the pins in the correct position. The stalk may also be shorter, and unless you're willing to totally take it apart and use the longer original one, I'd stick with that. One problem I had about 10 years ago was that someone was putting larger male pins into the connector, so they would not fit the original female side. I talked to the distributor(Victoria British?, Roadster Factory?, Moos?) about this problem and was able to return them and ake sure they had proper ones to fit(Midgets & MGBs were affected as well). I believe they have gotten this problem sorted out now, but make sure the male pins will fit before you start changing parts. btw, I use a very small flat screwdriver(jeweler size) to push the tabs in to remove them from the quick connect. hope this helps, bruce |
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Brett Gibson JH5 20497 Member
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On the Face book page Jensen-Healey in the files section there is a complete how to change over to the MGB turn signal, plus a whole bunch more info on all subjects JH. Brett. |
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Ralph H Member
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Thanks very much folks I put my hat out to our local club and have a NOS unit in the post on the way to me and a couple others on the way to act as test beds so I don't screw up the NOS unit. I have downloaded the very comprehensive how to file by Stephen Luckett (all 19 pages of it wow) from the FB page so I am all set. Hopefully this will also return my low beam headlights to me as they went south on the last bodge-up rebuild I did. |
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