crwdns2933423:0crwdne2933423:0
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crwdns2934241:0crwdne2934241:0 Mike

crwdns2934249:0crwdne2934249:0:

So the clunking turned out to be the brush motor becoming loose from the brush gearbox.

I removed the gearbox from the D85 and put blue thread-locker on the motor mount  screws. I also added a thin nylon washer between the main transmission gear and the gearbox.

Everything is perfecto now.

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open