HUP restore in Sask

[Harry Moon]

Originally Posted by ahleeds

So it isn't a sm420 but the earlier 31-48 predecessor.
Normally I would buff up the gears and carry on ,but the rust ate 3 teeth off third and the rest don't look much better.
If I was to run this pitted up gear set it would be so loud in the cab you'd need good ear plugs .
Anthony

Loud is normal, at highway speed I use a com set just to talk to the passenger. Straight cut gears in the transmission and transfer case will do that!

[ahleeds]

Looks like this gear was on the meth pipe

[Phil Waterman]

Originally Posted by ahleeds

Looks like this gear was on the meth pipe

Yup those are definitely past the polish and put it back together.

Though back in the day my brother had a Model A where the teeth looked like that and some mechanic had carefully brazed and filed each tooth back to shape. But boy was it load, he replaced the gears.

That photo is a classic "it ran when parked"

Cheers Phil


Is that the only gear that is bad? Interesting because that looks like the 3rd gear lower cluster gear which is the same one that my C60S broke a tooth out of, which I was able to find a NOS gear and replace it.

[maple_leaf_eh]

Originally Posted by ahleeds

Looks like this gear was on the meth pipe

Hmmm? In your situation, maybe you want to invent a jig to hold the rotten gear and then stock up on good quality welding wire? Or, pause the project until you can source a better looking gear.


BTW, I visited Moosomin many times when driving East/West on No. 1. The namesake of my street in Regina, Harry Mullin VC, is buried south of town.

[Bob Carriere]

Hi Anthony

Gear clusters are available....maybe not new but in good shape. I have opened more than one tranny over the years and although the box was half filled with water and bearings might have been pitted the gears were always good. Seals and bearings should be available from industrial dealers like General Bearing Services by size...OD and ID. A complete tranny from a junk yard may be much cheaper than a single gear retail....just remove the cover and spin the gear around for inspection. Easy to mail but expensive by weight. Sometimes the gears can be chipped or worn from lack of synchros but if not too bad can be dressed up with a grinding wheel. I have some available if you get desperate but postage from Ottawa, when they work, would be high.

Yours are beyond recovery and will no doubt chip and cause further damage to other gears.

Good luck and keep us posted by photos of your progress.

[Jordan Baker]

Just buy the individual gears NOS off of ebay. The MB-C2 manual gives a great run down on how to replace the gears. its very easy to do.

[Phil Waterman]

Hi

In your search for a replacement gear check the number of teeth, if memory serves there are two different 3rd gears with different diameters and different numbers of teeth so you need the one you have to match the upper gear cluster.

Cheers Phil

[ahleeds]

Phoned up Asperline Transmission in Winnipeg and he had one sitting on the shelf .
Was rebuilt and left there 20 yrs ago.
Felt pretty lucky to get one that easily.
I gladly paid him 500.00