MG-Cars.info

Welcome to our Site for MG, Triumph and Austin-Healey Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGB Technical - A stray wire in the engine compartmemt

Following on from the fun and success I had with the Hazard lights, my final question ... for now, is:

I have a stray wire (looks to be slate gray) emerging from the wire harnes close to the fuse box area in this November 74 (North American Spec) Rubber Bumper car that I am doing up for a friend.

Try as I might (and admittedly the 20/20 vision I had isnt there anymore) I cannot see such a wire in the wiring diagram - but perhaps some of you other clever gurus out ther can ID it for me and tell me where it ought to be hooked up to please.

Many thanks

Paul
Paul Barrow

I believe it should go to the fuse for the anti run-on valve. As I recall the fuse is under the fuse box.

Clifton

Clifton Gordon

Indeed, slate via an in-line fuse and changing to slate/purple goes to the anti-runon valve which is plumbed to the canister, the other side of the valve is slate/yellow and goes to the oil pressure switch.
Paul Hunt

Once again guys, I am indebted. Do either of you have a photo of the engine bay that would show the in-line fuse set up please that you could post?

Thanks

Paul
Paul Barrow

That's interesting.

My '67 B (ex-SU development) has a pressure switch in the line to the oil pressure gauge and a purple wire which disappears through the bulkhead and reappears on the other side where the evaporative canister would have been.

I always wondered what it was.
Dave O'Neill 2

Is it the same thing? The oil pressure switch was in an adapter right by the engine i.e. in the engine compartment already, not the cabin.
Paul Hunt

It is on a brass T-piece in the engine bay, next to the heater. The wire disappears through the bulkhead and then comes back into the engine bay on the near side.

As it's RHD the bracket for the canister is mounted on the blanking plate for the LHD pedal box.
Dave O'Neill 2

This thread was discussed between 21/05/2009 and 23/05/2009

MG MGB Technical index

This thread is from the archives. Join the live MG MGB Technical BBS now