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Spridget Gearbox question

Posted by saysprite

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Spridget Gearbox question #1
saysprite Darryl Saylor TN, USA 1953 Austin-Healey 100 "Ole Blue" 1960 Austin-Healey Sprite Bugeye "Smokey" 1965 Austin-Healey Sprite "Porky" 1965 Austin-Healey Sprite "Speedracer" 1970 MG Midget "Jack" → more	Posted: December 28, 2011 06:41PM Registered: 7 years ago Posts: 1,477

Is there any tricks on getting the third gear off the shaft? I know you're suppose to push in the spring and turn the clip. WHen I get the spring pushed in, I can't turned the retaining clip. Any suggestions?

Thanks

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Re: Spridget Gearbox question #2
saysprite Darryl Saylor TN, USA 1953 Austin-Healey 100 "Ole Blue" 1960 Austin-Healey Sprite Bugeye "Smokey" 1965 Austin-Healey Sprite "Porky" 1965 Austin-Healey Sprite "Speedracer" 1970 MG Midget "Jack" → more	Posted: December 29, 2011 04:35PM Registered: 7 years ago Posts: 1,477

With the help of my assistant. we got it off. Now the next question. Does anybody sell new 1/2 moom thrust washers. Moss UK has NLS, VB does not have them listed. One of mine cracked.

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Re: Spridget Gearbox question #3
dickmoritz Dick Moritz Philly 'burbs, PA, USA	Posted: December 29, 2011 04:42PM Registered: 3 years ago Posts: 7,248

Darryl,

Not sure which box you're working with. MiniMania has the thrust washers for the 948 and 1098 boxes, not for the 1275 ribcase mixer...

Dick

Errabundi Saepe, Semper Certi
(Often wrong, but always certain)

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Re: Spridget Gearbox question #4
Speedracer Hap Waldrop Greenville, SC, USA 1967 MG MGB "The Biscuit"	Posted: December 29, 2011 04:53PM Registered: 7 years ago Posts: 20,320

Darryl, you might want to give Freddy T., or Mike Miller a shout.

Hap Waldrop
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Edited 1 time(s). Last edit at 12/29/2011 04:53PM by Speedracer.

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Re: Spridget Gearbox question #5
hpmowog Karl Keiger Covington, LA, USA 1959 Austin-Healey Bugeye 1960 Austin-Healey Bugeye 1962 Austin-Healey Sprite	Posted: December 29, 2011 04:56PM Registered: 4 years ago Posts: 1,994

Darryl,

I've got plenty of used ones that you're welcome to if you want. Shoot me a PM.

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Re: Spridget Gearbox question #6
saysprite Darryl Saylor TN, USA 1953 Austin-Healey 100 "Ole Blue" 1960 Austin-Healey Sprite Bugeye "Smokey" 1965 Austin-Healey Sprite "Porky" 1965 Austin-Healey Sprite "Speedracer" 1970 MG Midget "Jack" → more	Posted: December 29, 2011 05:56PM Registered: 7 years ago Posts: 1,477

I'm trying to build a SCCR box for a Spridget. My old one is jumping out of 2nd and 3rd gear. I got a used set of gears a few years ago. I was going to let Miller rebuild it but I want to learn how to do it myself.

Karl, sending you a pm.

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Re: Spridget Gearbox question #7
mmacquee Michael MacQueen College Park MD, USA	Posted: December 30, 2011 08:50AM Registered: 2 years ago Posts: 105

The most important thing in the garage, for the do-it-yourself trans builder, is to have one or two old transmissions broken down for parts. You can never tell when you'll lose one of the needle rollers or some other small bit. Plus you'll have a supply of thrust washers, locking pins and other obscure bits whch are no longer stocked by any of the parts houses.

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Re: Spridget Gearbox question #8
Elva Bob Bob Lembcke Florida, USA	Posted: December 30, 2011 11:12AM Registered: 2 years ago Posts: 114

Daryl

Factory sraight cuts have no/little axial load, so nothing is pushing them in one direction or the other, any slop, they pop (out).... ball detents normally aren't the issue...those have to be really bad... it more, stuff that moves or giggles when rotating... helical gears provide a bit of thrust that keeps things together, where SC's don't.

What I almost always found to be cause of popping out of gear was axial clearance on the cluster stack up, or worn/bad synchro teeth on hub id....look at both mating parts, dress teeth with jeweler's files or dremel as needed...no burrs.. Do a good visual on stuff. Those thrust washers your sought, could be issue, as are shims in front of brg. on main shaft out...(between gear stack and brg...)

Also, make sure the pocket brg between first and 3rd motion shaft is good...including the shaft itself...often wear/brinell under brg, or inside first motion...

Use good stuff... the used gears, might be good or not....same with everything else. I had to buy new slider(s) from Leyland to fix my H car back in 78....

Some you just never figure out...

Okie

Edited 1 time(s). Last edit at 12/30/2011 11:13AM by Elva Bob.

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Re: Spridget Gearbox question #9
lrderry Mark Derry Chicago, USA 1968 Austin-Healey Sprite	Posted: January 04, 2012 09:02PM Registered: 6 years ago Posts: 37

Daryl
I'm going through the same thing this off season.
After two seasons of running a standard ribcase that I rebuilt myself all those hasty fourth to third changes accompnaied by loud grinding noises have taken their toll.
At the end of last season the popping out of third was becoming a little disconserting.
Please pass on any findings.
Also if anyone out there has a good used SC gear set I would be interested.
Good luck
Mark

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Re: Spridget Gearbox question #10
mmacquee Michael MacQueen College Park MD, USA	Posted: January 18, 2012 08:26AM Registered: 2 years ago Posts: 105

SC gearsets from Moss Europe are running less than $600, depending on the exchange rate (which has been increasingly favorable lately). Simple internet order -

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Re: Spridget Gearbox question #11
Tad Asay USA	Posted: January 18, 2012 09:32AM Registered: 2 years ago Posts: 10

Did you ever reach a conclusion in your rebuild Darryl? My dad and I have been struggling with the same issue with 3rd popping out and after a couple of rebuilds have yet to solve the problem...

One thing we have noticed is that when 3rd is engaged, the shift lever doesn't seem/appear as far forward as when 1st is engaged. It does however seem/appear to engage just as far as 1st on a stock ribcase. Anyone else notice that or chime in on that?

Tad

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Re: Spridget Gearbox question #12
mmacquee Michael MacQueen College Park MD, USA	Posted: January 18, 2012 09:46AM Registered: 2 years ago Posts: 105

Did you use the new style output shaft ball bearing? If so, you have to make sure the supplied shims are installed in such a way as to make the inner race stand out exactly to the height of the forward face of the inner race of the old style bearing. I ended up using a good used old style bearing (NLA) and this fixed the 3rd gear engagement problem.

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Re: Spridget Gearbox question #13
saysprite Darryl Saylor TN, USA 1953 Austin-Healey 100 "Ole Blue" 1960 Austin-Healey Sprite Bugeye "Smokey" 1965 Austin-Healey Sprite "Porky" 1965 Austin-Healey Sprite "Speedracer" 1970 MG Midget "Jack" → more	Posted: January 18, 2012 12:24PM Registered: 7 years ago Posts: 1,477

not yet, between the Holidays, being cold, work stuff, family stuff and motivation, i've taken a few weeks off. Everything is sitting there ready to be put back together. I just haven't started yet. I just have to get my butt back in gear.

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