MGB Register Forum

Perhaps the use of a cup washer made it easier to get the cross head screw balanced on the end of a screwdriver* and up through the hole in the body and started in the pear shaped fastening. *Perhaps even a special tool or adapted screwdriver to balance and hold the cup and screw. Anyone know someon...

The 17mm size suggests that someone has been there before you. As far as I'm aware there are no metric items on the B. I'm surprised a nut has been used. If I had stripped the thread in the pear shaped fastening and needed to bodge a fixing I would have drilled and tapped hole the to take a bolt. Th...

Well after another excursion into the loft I'm no wiser. Can't find any relevant markings on the edge of the crown wheel or the case. Thanks Peter for posting the BMC axle ratios table, most interesting. Would it be reasonable to assume that the item I have is standard, and that only any non-standar...

Thanks Ian I'll have a look tomorrow, if not it will have to come down into the light and get stored in my overcrowded garage.

That is not as easy as it sounds in the darkness of the loft, whilst trying to balance the unit on a beam to stop it falling through the ceiling and not getting covered in grease. (I left the grease on it to preserve it when I put it in a plastic sack 20 years ago -it seems to have worked). I was ho...

Anyone know how to identify the difference between a 3.9 and 4.2 diff?

Is it likely to be marked on the casing?

Only stamping I can find at first glance in the gloom of my loft appear to be A+4 & B+7 which might relate to the shims.

A similar compressor with twin air horns was fitted to my '64 B when I bought it in 1968, I didn't like it as it was not instantaneous like an electric horn. By the time the compressor had worked, the danger had passed, so I went back to the original electric horn. The red trumpets of the air horns ...

PM me if you still require one - I have one in the loft that is going spare.

Just an aside ...I always thought more was better, but could never understand why the revs on my 64 B crept up whilst idling in traffic. I've found out the hard way that if you overfill the dashpots the revs creep up from a normal idle to about 1500 revs. The techies on here will probably be able to...

Early MGBs (my 1964 one and a previous 1964 one that we owned) had a large eyehole welded centrally on the main front cross member. Don't know how long this continued for, perhaps ended with the 1965 model year? Like others, I have the brackets pictured above, which came with second hand bumpers bou...