Max 2 no low end torque

[pgoose]

I have a 96 max 2 with a 16hp vanguard. I just installed the high speed clutch upgrade in the primary. Original spring in secondary. Now when I drive it, it has no power for climping hills. The motor revs up in neutral, but when under load it won't. I was also adjusting the governor, which maybe I have something wrong there? Any suggestions?

[fulleraviation]

Higher gearing will take more power.

I put a high speed clutch on my IV. I live in Florida so relatively flat. I could run 30MPH flat but would slow under a load or uphill. Still had low end power though, but wouldn't go 30 up a hill.

The Vanguard should run 4,000rpm. How many are you turning? Do you know how fast you are going?

You will probaby be ok with some adjustments, but might mod the engine some. I would adjust the govenor to turn about 4,500 on flat ground. Then check to see what you can get going uphill. How fast was the stock machine? Mine was 18MPH, now its 30. You should still be able to pull the stock speed ok, but lug above.

Do you have stock tires? Get us some numbers, and we can help better.

I know that the high speed clutch is not really recommended on an 18 or less.

Check out one of my previous threads: http://www.6x6world.com/forums/engin...ore-power.html

Is your belt snug on the clutches and is it at least 1 7/8's wide. (Is that the right width guys, just guessing) You do have to shim the engine to get proper belt tension.

Later,
Rut

[pgoose]

The motor runs 4000 rpm in neutral. Stock tires. stock motor. Runs in the mid 20's top speed, but takes for ever to wind up to that. If I come to a log or steep hill, it will barely climb over. At top speed, when I come to a hill it will bog down around 2000 rpm, depending on the hill. Was a lot better before about climbing over obstacles.

Belt tension is good. Could the governor do this? Should I switch to a red spring in the secondary? Thanks for the help.

[liflod]

You may want to check your belt tension. If the belt is too loose, you will lose your low end.

[fulleraviation]

Hate to say it, but I think the 16hp engine is too weak for the application. Is your belt wore to thin? Get a measurement!

Next, if the engine is too weak you could sell it or hop it up!

Is anyone else running the high speed clutch with a 16?

Where did you get the clutch? It's not for a 2-stoke by chance?

[fulleraviation]

Hey liflod, hows your 18 doing?

Wish you could borrow mine for a day, it's a rocket now with the mods that I have done. Reliable so far.

Rut

[pgoose]

It's not a whole new clutch. It's just the heavy weight and spring upgrade from R.I., for '98 older clutches. Sorry for the mistake

[fulleraviation]

AHHHH! it's shifting way to fast.... It's running the belt up too quickly.

I have no experience with that mod...

Either it's installed incorectly or not right for the application. Your fix is arround the corner I'm sure.

You need to call RI. I usually talk to Jay, but everyone is friendly and willing to help.

[bigmandengo]

When i installed the high speed kit, i also installed the red spring at the same time and it seems to have the same low end power, but i drive mostly flat land.

[fulleraviation]

What does the high speed kit do? Unless you install a larger diameter clutch, I do not understand how you can go faster. Is the belt allowed with this kit to ride higher than stock which equals larger diameter?

It seems from the posts and reading between the lines that this kit allows the clucth to change/move throughout its range quicker which would allow faster acceration, but would bog down a smaller engine. In the end you would not go any faster, just get there quicker if your engine had the torque?

Interesting, can't wait to hear what RI say's or any other members more familiar with this. I would call RI, but sure someone will post their response soon.

BTW: I installed an Argo Clutch on my Max IV on an 18hp machine. Richard at Richards Relics sold it to me. It is a larger diamenter, and retains the same low gearing. I Love it!

Read this thread. I have pictures of stock and high speed clutch for those interested: http://www.6x6world.com/forums/max-a...ed-mods-2.html

Rut

[bigmandengo]

it allows the belt to ride higher in the clutch

[pgoose]

Yes, the '98 and older clutches didn't allow the sheave to close all the way, this is just an upgrade to equal the new clutch. Tried calling R.I. all day yesterday with no luck. We'll see what happens today.

Am I right by saying that I would need a stiffer secondary spring to go with the stiffer primary and bigger weights? Wouldn't the weaker secondary spring allow it shift too fast, which seems like exactly what is happening. Jay at R.I. says people run this setup all the time with no problems when I talked with him 2 days ago. Thanks again for the help.

[jerseybigfoot]

A stiffer spring on the secondary (driven pulley) allows the engine to rev higher (stay in a lower gear) longer and to back shift quicker. The previous owner may have taken the driven end apart and didnt index the sheaves properly. Preloading the cam (3 ramp ring) is critical to proper clutch performance. Usually the preload is 33 degrees wind up on the spring.

[pgoose]

I'm still having problems with no power on low end. I've called R.I. and tried everything they could think of. I ran it up an incline and watched the clutches and the belt is where it should be, not riding up in the primary or down in the secondary at all. I'm lost anyone have any other suggestions? Before this, we were also adjusting the governor, could I have screwed something up there? Thanks for your help.