MG-Cars.net

Welcome to our resource for MG 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 MGA - Gearbox Rebuild

Ive gone and dismantled most of my gearbox getting ready for a rebuild. Before I take the mainshaft apart i am trying to measure the endfloat between the second and third gears. There is quite a bit of movement possible between the two. If i slide the second gear as far back towards the exit side of the shaft and the third gear as far forward (in the opposite direction of 2nd gear) as possible there is a gap of around .021". Is this the correct way to measure the endfloat between the two?
RSK Ryan

RSK,
I measured three old trannys that I have and I got measurements of .010", .019", and .021". I don't know of any other way to measure the end float. Hope this helps. Have a good day!

John
John Progess

Does anyone know if these are acceptable clearances? I plan on installing new busings for both 2nd and 3rd gears and i have purchased a new thrust washer however it only comes in the original size of .157". I'm not sure if its even possible to correct the spacing.
RSK Ryan

Hi RSK. According to my old autopress MGA/MGB manual by Kenneth Ball, the 2nd and 3rd gear endfloat needs to be between .004 & .006 inches. If endfloat is incorrect shims are available in various thicknesses to take up the "slop". Shims were apparently originally available in .1565 to .1575, .1585 to .1595, and .1605 to .1615 inch thicknesses. I Dont know about the availability of these shims today. You may have to make some out of shim stock material, if unavailable. Hope this helps. Glenn
Glenn

This thread was discussed between 02/09/2005 and 06/09/2005

MG MGA index

This thread is from the archive. The Live MG MGA BBS is active now.