Newb Manco Duece help.

[Electriccheetah]

Hey y’all. Bought a deuce for $400 on marketplace. I replaced a techumseh 12 horse with a duromax 16hp. It runs great now and drives really good. So now that I have a solid motor I am looking to adjust a few things and make it solid and customize and few things. So far my questions are:

How much gear oil does the case hold?
Is there an adjustment on the f-n-r case? It’s grinding going into reverse?
Anyone have a solid link to a maneual? I have looked and the links on this forum are broken.

Thanks for the help! I have enjoyed your customized pics and plan several light and equipment upgrades.

 

[landuse]

Welcome to the forum!!!

Are you talking about the Comet FRN gearbox? This one? It gives you the amount of oil to put in

https://www.bmikarts.com/PDF/CometGearBox.pdf

 

[Kartorbust]

Link to the manual. It's an 8 page PDF. It'll be 2nd one down on the page of other karts. https://www.bmikarts.com/Manco-Manuals-Parts-Breakdowns_ep_182-1.html

At the moment I'm not finding many specs on the Dana 8:1 transaxle for the kart. The manual doesn't state that spec. I'm sure someone else can help on that. Otherwise I'll double check on my lunch break in like 4 hours to see if I find anything else to help. I would google the Manco Deuce to find other stuff that you need to know. Now is it the standard deuce or the Super Deuce? Super Deuce uses a Dana H-12 transaxle, standard deuce uses the Dana 8:1, different ratios.

 

[Kartorbust]

What I've been able to find is the H-12 uses 28oz of Mobilfluid 424, but can be substituted for John Deere J20C (found at John Deere dealers). Either one also needs to be followed by a friction modifier.

However I'm lost when it comes to finding a got dang thing on the Dana 8:1...must have been a very rare transaxle. The H-12 at least has been used by golf carts, so theres info on it, but nada on the 8:1.

 

[Electriccheetah]

Thanks y’all. It’s a comet gearbox and the pdf says 8oz. There was way more than that in it when I drained it. I hope that solves it not wanting to go in reverse without grinding. Whoever had it did a number on it for sure.

 

[landuse]

Thanks y’all. It’s a comet gearbox and the pdf says 8oz. There was way more than that in it when I drained it. I hope that solves it not wanting to go in reverse without grinding. Whoever had it did a number on it for sure.

I wouldn't think that exessive oil would cause grinding. Are you able to crack it open and look at the internals? Something might be broken or seriously worn

 

[Kartorbust]

It could be grinding because of a lack of a friction modifier.

 

[Karttekk]

Here are some links to their manuals, may or may not help.

Thanks

https://americanlandmaster.com/pdfs/gokarts-minibikes/model-612/612_operatorsmanual_6120061201.pdf

https://americanlandmaster.com/pdfs/gokarts-minibikes/model-613/613_operatorsmanual.pdf

Scroll to 612 or 613

https://americanlandmaster.com/manuals/fun-karts-manuals/

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https://americanlandmaster.com/pdfs/gokarts-minibikes/model-612/612_Dingo_Deuce_Operators_Manual.pdf

 

[Electriccheetah]

Clutch replacement

My clutch is not releasing which is why the gears are grinding. Anyone have a link for a replacement? Thanks btw everyone. Forums rule!

 

[Kartorbust]

Going by one of the PDF manuals. Take the driver and driven pulleys off and pop them apart to service inside. The springs might be old and rusty or worn out.

 

[landuse]

My clutch is not releasing which is why the gears are grinding. Anyone have a link for a replacement? Thanks btw everyone. Forums rule!

Going by one of the PDF manuals. Take the driver and driven pulleys off and pop them apart to service inside. The springs might be old and rusty or worn out.

Do as Kartoburst says and rather service the thing.

 

[Kartorbust]

Now judging by the pictures in the manuals, it looks to be a Comet 40 series. Grant from KartFab did a video on how to service a 40 series. https://www.youtube.com/watch?v=a3FCcLlR-sg

A visual guide/tutorial I feel is a better way to learn to do something than trying to follow pictures, especially trying to learn what each part is.

Replacing a 40 series is not cheap, about $400 for a true Comet, maybe half for a Chinese knock off.

 

[Electriccheetah]

Clutch broke. I took it all apart and it was broke. Rusted metal chunks missing and not retracting fully causing the clutch to be engaged full time. I ordered a new one and it was just about as much to piece the parts I needed together.

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Anyone have a link for replacement shocks?

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That cleaning video is great. It’s not the torque converter I have but none the less very informative!