When I use the brake pedal on the 1912 i get a crunch sound
At first it sounded like differential skipping gears .like worn washers
but it also sounds like tranny .
everything is ok ...low ..reverse..any ideas
my t will groan a little from the rear end when i apply the brake, it certaily could be that your washer have let loose in the rearend
I have always thought that you potentially put more torque strain on the ring and pinion in the rear end when stopping, than when starting up.
If I'm right, then the noise you hear could certainly be the gears in the diffy slipping.
If it is, you're getting closer and closer to the awful day when you step on the brakes and keep going.
I'd say you should immediately open up that rear end and make sure.
I agree with Matthew. If you still have babbitt thrust washers in your rear axle, or if you don't know if they've been replaced with bronze thrust washers, that's the first thing to check.
Many years ago before I knew better, I had babbitt thrust washers break while on a 5 day Model T tour. I also couldn't tell if the noise was coming from the rear end or the transmission, but on the advice of more experienced tour members, I took the rear end apart and there was the babbitt all broken up in the bottom of the differential.
I strongly recommend that you Start there first.
Thank you ..will do
Of course, the old "jack it up and slide the axle" test might be revealing, as is checking for chunks in the rear end oil, but if you don't know that there is definitely bronze thrust washers in there, then a tear down is definitely in order, no matter what these other tests tell you.
The "slide the axle" thing will indicate only that something might be haywire with the axles or differential but won't tell if the upper driveshaft bronze bushing flange is worn thin.
It's a good place to start though......and easier......
Pictures & rear axle introduction: