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MG MGB Technical - Left Hand Threaded Means?

Does the left hand threaded nut on the banjo axle mean COUNTER CLOCKWISE to loosen? Haynes shows the passenger (obviously the right side) side of the rear axle having a left hand threaded nut on that side. Is that correct? Left handed(counter clockwise) to loosen on the passenger side? Just like the wire wheel knock offs on the passenger side? Before I get too excited with the breaker bar..... Thanks Ralph
Ralph

What I should of asked is CLOCKWISE to loosen...opposite of a regular fastener? Same as the wire wheel knockoff on the passenger side? Thanks Ralph
Ralph

Yes Ralph, a left-handed thread turns clockwise to loosen. Many, many people have found that out the hard way.

Mike
Mike Howlett

It's a hard habit to break, even with your left hand. I've had a troublesome fan on the family van, 5mm LH nut holds it on. Thought I lost the nut, couldn't find one locally, so I used a nylon nut (can't remember the name) with no real threads, and put it on carefully. Worked for about a year, loosened up a bit. Took the fan off again, turned the nut counterclockwise to remove it..oops, left hand thread, stripped the nylon nut. But I had a spare. After installing the fan assembly for the 2nd time now..guess what was sitting just under the fan on the crossmember? The original nut. Oh well, I have an original spare. BTW, the fan assembly was all they could sell me at the dealer...$600. Good thing I'd had practice fiddling with LBC's.
Tom

Er I always thought LHT was to tighten...

Thats how i was taught.

~PHIL
Phil

read it again and you've all sussed already.
Soz
~PHIL
Phil

I think that it was somewhere around junior high school that I picked up the little ditty to remember how standard threads tighten and loosen - Righty, tighty, lefty, loosy. Whatever works. Cheers - Dave
David DuBois

After all the careful consideration and checking. I ended up cutting the nut off after just being unable to "loosen" the left handed nut......... then I determined it was a regular right handed(righty tighty, Dave) nut! No threads were visible as it was flush against the mating surface. What in the world???? Then I go over to the MGA board and see that the early Banjo axle MAY have a left handed nut on the axle and MAY not? How can that be? Did the factory "sometimes" do runs of both? The charm and quaintness of the British engineering makes me smile. Now I have to go and rest my arms. Ralph
Ralph

Women can change their minds. People in charge can change their minds. Either way you are left screwed, right? Yes, there was a change along the way, but I think it was a one time deal. All the left hand nuts I've encountered on BMC cars are clearly stamped as such.
FRM
FR Millmore

Ralph,
Only the very early MGAs had a RH thread nut on both sides. Apparently the engineers at BMC determined that axle rotation may loosen the nut and the change was made to a LH thread on the left side of the car. So the change was done for practical purposes not just on a whim.
Bill
Bill Boorse

Bill,
This was a factory original mgb roadster rear end from 1966. Two right hand nuts... I saw on the MGA board some info about the fact that some do and some don't. Obviously the change occurred at some point, and I sure understand the reasoning... I was just surprised that this was both right handed. I should have looked for the stamping. I learn a little more each time. Ralph
Ralph

"Apparently the engineers at BMC determined that axle rotation may loosen the nut and the change was made to a LH thread on the left side of the car"

LH thread on the right-hand side of the car, surely.
Paul Hunt 2

Ralph,
I didn't think any MGBs had 2 RH nuts. They made the change with the 1440th MGA, #11541.
Paul,
The LH thread goes on the left side (passenger side in UK) of the car. Axle rotation is counter-clockwise on that side which would tend to loosen a RH thread.
Bill
Bill Boorse

This thread was discussed between 28/09/2005 and 30/09/2005

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