Manco 606

[steved]

I understand the TCs are dirt simple and parts are available, but this one has issues...it works, and if I could have bought the parts cheap enough...

This one has sat outside for who knows how long...the sheaves have pitting, which I think is causing the jerky engagement issues. Plus, there is a screw on the driven end that I think is supposed to hold the bumpers in place...it's cracked the aluminum casting out.

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[steved]

The "shock" springs that carry the weight, are those actual shocks and do they need replaced once in a while? The ride seemed really rough and jarring for having a suspension.

I weight 270#, my daughter is maybe 50#; could the shocks and/or springs be weak/fatigued? Putting my knee on the rear support, I can pretty easily compress the rear springs from full extension to full compression.

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[Hellion]

The "shock" springs that carry the weight, are those actual shocks and do they need replaced once in a while? The ride seemed really rough and jarring for having a suspension.

I weight 270#, my daughter is maybe 50#; could the shocks and/or springs be weak/fatigued? Putting my knee on the rear support, I can pretty easily compress the rear springs from full extension to full compression.

Yes. Yes. As to whether they are real shocks with oil or just glorified springs is anybody's guess.

I suspect anything can be used in their stead as long as the eye to eye length matches.

 

[steved]

...

 

[Hellion]

Excellent!

Looks like you have gotten almost everyone involved and the resto work looks like it's top notch! That's the way to do it, mang.

Mr. Safety™ is pleased with all the protective gear in evidence.

 

[chancer]

Mr. Safety™ is pleased with all the protective gear in evidence.

Stop talking about yourself in the third person. For Pete's sake you sound like Bob Dole!

 

[steved]

Excellent!

Looks like you have gotten almost everyone involved and the resto work looks like it's top notch! That's the way to do it, mang.

Mr. Safety™ is pleased with all the protective gear in evidence.

It's "her" kart, so she's fixing it with my help...I only want to fix something once. I've even been upgrading the pivot points and jackshaft with zerk fittings!

I figure if I teach her the correct PPE and safety early, she might not have the scars, hearing loss, and other things my father and I have...it seems to be working as she always grabs her glasses and her earmuffs whenever we are working.l, and she's seven.

I have less trouble getting her to wear PPE than some of the guys I work with...

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[chancer]

Your good man, "Mr. Safety" is an old inside joke here.

 

[steved]

Ok, since I'm working on a phone and search isn't working very swift...

I've got 18" tires, I believe a 60T axle sprocket, a 9T jackshaft sprocket, and what is (or will be tomorrow) a 30 series converter. I have a 212 predator, and I have already screwed the throttle stop in to limit RPM. What is the max speed this thing would be capable of? I'm trying to get it slower...not looking for fast, if I could get it to 15mph max, I'd be happy.

Since this has a Manco hex axle shaft, is there a higher tooth sprocket available for that larger hub? Is there a smaller jackshaft sprocket, I've only seen 9T listed.

What are my options to slow this down?

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[chancer]

There is some sort of limiter accessory available for TCs.

I know that is not really helpful. but maybe it will jog someones mind who knows the proper terminology and maybe a link to the part.

 

[OzFab]

...I have already screwed the throttle stop in to limit RPM.

That's not only not the best option, it's not a good one; apart from limiting RPM, it may cause damage to the TC because it can't fully engage...

In my experience, the only way to limit speed without damaging anything is with gearing, ie: you need to add a jackshaft; as she gets older & more used to the kart, the jackshaft can be removed or modified...

Another method is to lower the governor speed but, this is akin to using the throttlestop screw...

 

[steved]

That's not only not the best option, it's not a good one; apart from limiting RPM, it may cause damage to the TC because it can't fully engage...

In my experience, the only way to limit speed without damaging anything is with gearing, ie: you need to add a jackshaft; as she gets older & more used to the kart, the jackshaft can be removed or modified...

Another method is to lower the governor speed but, this is akin to using the throttlestop screw...

Add a jackshaft?

That would be another set of sprockets and a chain and not to mention a lot of unwanted fabrication. I'm not even sure how I could do that without repositioning the entire engine and primary drive.

I can't modify the existing drive?

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[chancer]

Ok here is what I was talking about. I do not know anything about it.
But it is a Torque converter speed limiter. No jackshaft, no fabrication, no engine rev limiter.
http://www.gopowersports.com/20-30-series-speed-limiter-modified-weight-assembly/

 

[mckutzy]

A jackshaft isnt really all that difficult.... you have alot of real estate on that back end to work with....

For ex....
With the TC facing forward... extend that output shaft(with or without a coupler, they help though(depending on shaft type)) and support the end. Put the jackshaft in the rear empty space under the cylinder with pillowblocks......Connect with chains...

Ya it maybe easier said than done.... but not really impossible.....

 

[Hellion]

Ok here is what I was talking about. I do not know anything about it. But it is a Torque converter speed limiter. No jackshaft, no fabrication, no engine rev limiter.

Steved can be our guinea pig as these are uncharted waters. He must try it out, for the good of the forum.

I would also suggest one of those radio controlled/wireless kill switches for times when his child is operating the kart alone.

Without the speed limiter or both of these modifications, Mr. Safety™ cannot condone solo go-karting for those 12 and under.

 

[chancer]

Still I like the Bolt on Speed limiter accessory. Can be removed later as the kid grows

 

[mckutzy]

That true... same with a jackshaft....

 

[Hellion]

How do we know the GoPoSpo speed limiter is not the very one recommended on the kart's decal from post #17?

 

[chancer]

We don't know.
I do condone So;o Kart use for kids under 12. Both my little kids have had Karts since they were 8yrs old.

 

[steved]

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