Big block clutching

bud_toledo · 02-28-2021, 10:20 AM

Have a 04 precedent with 18hp vanguard with rev kit and cartsplus clutches. Question I have is...Is it suppose engine brake when you let off gas until it stops? Acts like you are driving in one gear. Prob a stupid question. But it doesn’t seem right.

slonomo · 02-28-2021, 11:01 AM

It really shouldn't drag like that, none of mine ever did. I'm wondering if the belt is too tight or if the secondary clutch spring might be really stiff? It sounds like it's not backshifting. When you let off the throttle the clutches should return to almost a neutral position. As you slow down the drivetrain shouldn't drag very much.

bud_toledo · 02-28-2021, 11:47 AM

That’s what I was thinking as well. Belt dosent seem to be to tight. There is a cpl of inches of play when pushing in middle of belt. Is it possible the belt needs to break in? It dosent squeal or smell like rubber burning. I know my governor on axle isn’t working. Think that wouldn’t have anything to do with it though.

Bigb19812000 · 02-28-2021, 11:52 AM

Is the cart on stands or on the ground when the issue occurs?

bud_toledo · 02-28-2021, 11:53 AM

On the ground.

slonomo · 02-28-2021, 12:30 PM

If the secondary clutch is a CPP part, it might be upgraded with a stiffer spring. Might give them a call and see if you can get any info. Did you purchase the clutches or were they already on the cart? If you did, you could look at the paperwork that came with them. Sometimes the secondary clutches come with machining and stiffer spring to help with low end torque.

It might be hard to do, but watching the clutches when driving on the ground is the only way to know what's happening. Looking at them while it's up on jackstands isn't always telling the whole story. Some guys have taped a GoPro or an old phone underneath the seat facing the clutches. I definitly wouldn't do that with your good phone lol

bud_toledo · 02-28-2021, 01:03 PM

I ordered the clutches. This cart was a basket case. So I never had driven this cart until now. So what would I be looking for when watching it?
I’ll call ccp tomorrow and see what they say about it. I know it’s the clutches for the big block kit.

bud_toledo · 03-01-2021, 02:54 PM

Here’s a link to a video of clutches. https://www.youtube.com/watch?v=-jzqF65dMt8

https://www.youtube.com/watch?v=-jzqF65dMt8

slonomo · 03-01-2021, 03:51 PM

To be honest, that looks like the clutches are working perfectly. What you are looking for is primary engagement at about 1600-1800 rpm, full shift at around 3000 rpm (or so), and the secondary clutch to backshift when the throttle is lifted.

If it's a new belt, they are sometimes a little "sticky". The belt will loosen up as it wears in.

bud_toledo · 03-02-2021, 08:30 AM

I talked to Bruce from ccp. He said that was normal. And I ordered the 8.1 gears. Thanks for the response.

02-28-2021, 10:20 AM	#1
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80	Big block clutching Have a 04 precedent with 18hp vanguard with rev kit and cartsplus clutches. Question I have is...Is it suppose engine brake when you let off gas until it stops? Acts like you are driving in one gear. Prob a stupid question. But it doesn’t seem right.
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80

02-28-2021, 11:01 AM	#2
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: Big block clutching It really shouldn't drag like that, none of mine ever did. I'm wondering if the belt is too tight or if the secondary clutch spring might be really stiff? It sounds like it's not backshifting. When you let off the throttle the clutches should return to almost a neutral position. As you slow down the drivetrain shouldn't drag very much.

02-28-2021, 11:47 AM	#3
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80	Re: Big block clutching That’s what I was thinking as well. Belt dosent seem to be to tight. There is a cpl of inches of play when pushing in middle of belt. Is it possible the belt needs to break in? It dosent squeal or smell like rubber burning. I know my governor on axle isn’t working. Think that wouldn’t have anything to do with it though.
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80

02-28-2021, 11:52 AM	#4
Bigb19812000 Not Yet Wild Join Date: Mar 2019 Location: Central Florida Posts: 11	Re: Big block clutching Is the cart on stands or on the ground when the issue occurs?

02-28-2021, 11:53 AM	#5
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80	Re: Big block clutching On the ground.
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80

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02-28-2021, 12:30 PM	#6
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: Big block clutching If the secondary clutch is a CPP part, it might be upgraded with a stiffer spring. Might give them a call and see if you can get any info. Did you purchase the clutches or were they already on the cart? If you did, you could look at the paperwork that came with them. Sometimes the secondary clutches come with machining and stiffer spring to help with low end torque. It might be hard to do, but watching the clutches when driving on the ground is the only way to know what's happening. Looking at them while it's up on jackstands isn't always telling the whole story. Some guys have taped a GoPro or an old phone underneath the seat facing the clutches. I definitly wouldn't do that with your good phone lol

02-28-2021, 01:03 PM	#7
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80	Re: Big block clutching I ordered the clutches. This cart was a basket case. So I never had driven this cart until now. So what would I be looking for when watching it? I’ll call ccp tomorrow and see what they say about it. I know it’s the clutches for the big block kit.
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80

03-01-2021, 02:54 PM	#8
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80	Re: Big block clutching Here’s a link to a video of clutches. https://www.youtube.com/watch?v=-jzqF65dMt8 https://www.youtube.com/watch?v=-jzqF65dMt8
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80

03-01-2021, 03:51 PM	#9
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: Big block clutching To be honest, that looks like the clutches are working perfectly. What you are looking for is primary engagement at about 1600-1800 rpm, full shift at around 3000 rpm (or so), and the secondary clutch to backshift when the throttle is lifted. If it's a new belt, they are sometimes a little "sticky". The belt will loosen up as it wears in.

03-02-2021, 08:30 AM	#10
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80	Re: Big block clutching I talked to Bruce from ccp. He said that was normal. And I ordered the 8.1 gears. Thanks for the response.
bud_toledo Getting Wild Join Date: Feb 2013 Posts: 80

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