RD350 3rd gear slip

[mavguy]

Hullo folks,  so I just get up one morning,  fire up the old RD350 LC cylinder hybrid,  reach the cafe and as soon as I finish up my latte and start heading home........the 3rd gear begins giving a horrible clanking sound ( sort of a gun cocking ) and starts to slip.......The problem seems  to only be in the 3rd gear till now. This was a first , never has such a problem before....engine oil levels are fine.
I am seriously hoping not to have to overhaul the entire engine/transmission as the last one was just 2000 miles.thanks.

[1976RD400C]

I guess step one is to drain the oil and take a look at it. If there is any signs of chips, sorry, motor pull time.

[scully]

Someting Wong ... which would be a case split.. couple of hours ! Piece of cake 😎

[m in sc]

sounds like 3rd gear dogs worn or bent shift fork

[mavguy]

sounds like 3rd gear dogs worn or bent shift fork

Guessed as much. But what I find strange is that there was no problem when I parked. Only when I started back that it came up. It couldn't have happened on its own while parked?

[irk_miller]

Parking, or downshifting to park, is when it likely occurred.  All that momentum slamming down on the gears and the dogs trying to shift them.

[rodneya]

You can leave the top end on, flip the motor over and only remove the bottom case to get to the trans