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Since Jack and Doc are bored

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jcatnite

jcatnite

Jedi Knight
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This is a bit premature but I figured the "regulars" needed something to chew on. Finally got around to pulling the top off the gearbox on my 1500 midget yesterday. I knew I had a problem inside because it grinds gears when I "hurry" the shift from 1st to 2nd. I plan to rebuild it while I have it and the engine out of the car. Anyway, now to the real problem, when I had it in the car, if you let off the gas in 1st gear the gearbox made a kind of clacking noise. It was smooth under power but when engine braking it was pretty noisy. So, I pulled the top off the box last night and had a looksee. When I put the box in 1st and turn the output shaft it clicks but when I turn the input shaft it doesn't. I can't see what is going on down deep inside yet so it might be obvious when I start pulling things apart. But, as I said before, I though I would give Doc and Jack a chance to exercise their memories. Oh as a side note, I ran a magnet down inside the oil at the bottom and didn't really come up with any metal particles..which I thought was a bit odd.
JC
 
Sounds like the output shaft bearing at the least. You *know* you need second gear baulk ring, and likely the layshaft bearings. Needles between input shaft gear and mainshaft, too... Been a while since I was in a 'rumfie' box, but veery similar to the *nice alloy* ones BMC used. /ubbthreads/images/graemlins/grin.gif

All the "mud" will be in the tailshaft housing, I bet.
 
Dude! My tran has the exact same problem!

Whatza baulk ring?
 
"synchro"
 
I've not delved too deeply into the gearbox yet but replacing bearings and synchros was never too bad in the larger transmissions I've worked on. Morris, if you have a good book you should have no trouble. If not let me know and I'll see if I can copy the appropriate sections from my Bentley manual. Let's just hope we don't have to press any gears.
JC
 
I don't recall any press work on these units. All just judicious knobbling. Hand-built.
 
Ohhh, if the gears are worn, it's new shaft and all then?
JC
 
With the input shaft. Laygear is an "all-in-one" one piece gear, the rest are "onesies". Lots of fun *little* parts, too. Springs and ball detents... They took some of the fun outta th' job when they caged the needle rollers in the receiver on the input shaft tho /ubbthreads/images/graemlins/wink.gif
 
Thanks for the warning. I'll be sure to sweep the garage floor before I turn it upside down and dump it out...lol
JC
 
[ QUOTE ]
They took some of the fun outta th' job when they caged the needle rollers in the receiver on the input shaft tho /ubbthreads/images/graemlins/wink.gif

[/ QUOTE ]

Yeah, Doc. I really miss hearing that tiny rattle as I'm tapping the input shaft into place.
Jeff
 
I've a good story of that job... First Wife put one together in front of a bunch of GI's in a base hobby shop once:
"Hey! There's a GIRL doin' some kinda sportscar tranny over there!" T'was a show they'd not soon forget, too.

I'll have to write it up proper-like. Anybody with a spare round tuit?
 
I got an extra square tuit. All bright and shiny.
 
I thought th' square ones were doit tuits. hmm.
 
Golly, slow day on the spridget board.
 
I'm gonna cross-post this, then:

When I rebuilt the kitchen cabinetry I used the hinge hardware from two "flip down thingies" to construct USEFUL bins! Left side for waste, right for recycle, and a full-extension drawer under:

kitchen-1.jpg


Herself needn't get on hands 'n knees to find what's inna back of the "pit"! /ubbthreads/images/graemlins/cool.gif
 
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