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 - 3rd and 4th Synchro ring question

I have just put my MGB 3-synchro gearbox together with the usual manuals (Haynes, original BL) and a lot of help from Barney Gaylord's site - a big thank you from Berlin to Barney!

I do have a question about the third and fourth gear synchro rings. The box was an ebay purchase some years ago, sold as seen and a new engine has prompted a gearbox rebuild. The box was in the process of destroying its layshaft, laygear and bearings. These are now new, as well as the input shaft. As I had the box in pieces and its history was unknown, I decided to replace the 3rd and 4th rings while I was at it.

The box has gone together reasonably easily, the input bearing and mainshaft bearings are both in the correct position. The 3-4 sliding hub went on fine (and right way round). The synchro rings fitted like the old rings that I took out. I still need the correct gear lever but it seems to engage the gears OK.

My question: When I rotate the input shaft by hand I can hear the synchro rings rattling. Is this correct or have I missed some detail or even left something out?

Mike

PS: The box is a 3-synchro overdrive for my (3 bearing) MGB
Mike Standring

Mike, That is normal.Fill it with oil and it will not rattle any more.
A J Dee

Thank you, A J, I will continue with the rebuild.
Mike Standring

This thread was discussed between 19/05/2015 and 21/05/2015

MG MGA index

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