4 replies to this topic

[Tda321]

Hi All,

 

With huge help from a friend, the gearbox from my 1996 SPI is finally on it's way to being fully reconditioned.

 

It's had the typical crunching down into gears for the year that I've owned it, I've always assumed that it would be worn baulk rings as I see them mentioned so much. However, it looks to us as if the baulk rings are okay (obviously still being renewed) and they have actually worn the finish off both first and second gear. See pictures attached.

 

Are we looking at this correctly and if so, has anybody seen this before? Can the gears be saved or is it a case of buying new?

 

Thanks for any help in advance.

 

Tim

 

 IMG_20190422_145413.jpg   44.13K   3 downloads  IMG_20190422_145340.jpg   40.25K   4 downloads  Baulk Rings.jpg   79.96K   2 downloads

Edited by Tda321, 22 April 2019 - 04:44 PM.

[GraemeC]

They’re knackered - will need replacing

[Spider]

As Graham has said, they are karput.

 

This usually happens when the baulk rings fitted at an overhaul are made from incompatible materials, though, sometimes, the Molly Coating on the gear just flakes away, though, given here, it's happened on 2 gears in the same box, and that the baulk rings aren't too worn I'd say these were the cause.

[Rorf]

The cause could also be incorrect engine oil being used, but for sure those gear cones are badly shot.

[Tda321]

Thank you for all the suggestions. New gears ordered!!!