[Healeys] differential experts

[S and T Miller]

I know this is a tough one.  The 1960 Bugeye had a rear end HUM at highway
speed under load.  When you let off the pedal the HUM went away.  It was very
consistant- meaning it didn't change around corners and increased at higher
speeds.  I torn apart the rear (which is a 3.9 BTW) hoping to find a screwed
up bearing or mashed gears.  The only two things I found was light wear (in my
opinion- not an expert on rears) on one side of both the crown gear and
pinion.  When you rub a screw driver across the worn surfaces you can feel
variations.  Is this normal wear?  Also found the inner pinion bearing cage
had been bent slightly (probably by someone working on it before) that had
rubbed the very top (thin edge) of the race, maybe causing the HUM when the
bearings touched the surface under load?  Any thoughts?  Again I know it is
tough to say without seeing it, but I took it to a local machine shop and they
didn't think it looked too bad, but wasn't sure either.  Thanks, Shawn

The Millers
"British Car Nuts"

1957 Austin Healey 100-6 BN4 35299

1959 Austin Healey 100-6 BN4 77219

1964 MGB 40841

1960 Austin Healey Bugeye Sprite AN5 34351

"Always drive them, but remember each drive in an antique car is a test
drive."



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