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post #1 of 12 (permalink) Old 06-05-2019, 04:26 PM Thread Starter
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Clutch Loss question

Hi all,

2018 CVO Roadglide. Installed the AIM Corp Lightforce clutch actuator last November. Version 1.

Have had zero issues, including a 2000 mile trip, until Sunday.

Sunday coming home, clutch started acting up. Disengaging less and less, until finally, pulling in driveway, it failed to disengage.

Upon inspection, my fluid reservoir was low, but not empty. After exhaust cooled down, I removed cover. No signs of leaks, all connections tight. I filled the reservoir, and voila, clutch fully disengages, no issues. Two short rides to and from work before the rain gets here and reservoir still full, no leaks observed.

So, where did the fluid go?

I know the Harley recall corrected an issue where the seals allowed the clutch fluid to enter the transmission. Although I have an aftermarket part, that is a possiblility. Is there any way to confirm that?

Is there any other explanation for the loss of fluid with no external leaks?

Thanks up front for any advice.

2018 CVO Road Glide, Black Earth/Vivid Black
Fuel Moto Road & Track 2 into 1, Fuel Moto custom K & N Air Cleaner, Redshift 468 cam, Power Vision.
2003 Super Glide 100th Anniversary Edition
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post #2 of 12 (permalink) Old 06-05-2019, 08:58 PM
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Quote:
Originally Posted by jchar27 View Post
Hi all,

2018 CVO Roadglide. Installed the AIM Corp Lightforce clutch actuator last November. Version 1.

Have had zero issues, including a 2000 mile trip, until Sunday.

Sunday coming home, clutch started acting up. Disengaging less and less, until finally, pulling in driveway, it failed to disengage.

Upon inspection, my fluid reservoir was low, but not empty. After exhaust cooled down, I removed cover. No signs of leaks, all connections tight. I filled the reservoir, and voila, clutch fully disengages, no issues. Two short rides to and from work before the rain gets here and reservoir still full, no leaks observed.

So, where did the fluid go?

I know the Harley recall corrected an issue where the seals allowed the clutch fluid to enter the transmission. Although I have an aftermarket part, that is a possiblility. Is there any way to confirm that?

Is there any other explanation for the loss of fluid with no external leaks?

Thanks up front for any advice.
I would contact AIM and tell them that you are loosing fluid with no external leaks. There is a rumor that they did more than relocate the line fitting during the redesign. It was actually about some early failures on the first design units.


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post #3 of 12 (permalink) Old 06-05-2019, 09:35 PM
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Just like what happen to HD AIM had some issues. I am sure they will stand by it.


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post #4 of 12 (permalink) Old 06-06-2019, 06:33 PM
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The same thing happened to me after 1500 miles. No external leaks. The fluid had to go somewhere so I checked the tranny fluid and it seemed a little milky, not much but enough that I wanted to change it. I put the the OEM slave cylinder back on and have had no issues after 2500 miles. I did not feel good about leaving the AIM Liteforce Gen2 on my other RG so I put the OEM slave cylinder back on it. Maybe AIM would have replaced it, but I just chalked it up to another failed experiment.
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post #5 of 12 (permalink) Old 06-07-2019, 08:34 AM Thread Starter
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Originally Posted by Molo1 View Post
The same thing happened to me after 1500 miles. No external leaks. The fluid had to go somewhere so I checked the tranny fluid and it seemed a little milky, not much but enough that I wanted to change it. I put the the OEM slave cylinder back on and have had no issues after 2500 miles. I did not feel good about leaving the AIM Liteforce Gen2 on my other RG so I put the OEM slave cylinder back on it. Maybe AIM would have replaced it, but I just chalked it up to another failed experiment.
AIM says they will send me the new one out. I'm waiting for their instructions. Now I have to find the stock one and pop that back on so I'm not down for a week waiting for a new part.

2018 CVO Road Glide, Black Earth/Vivid Black
Fuel Moto Road & Track 2 into 1, Fuel Moto custom K & N Air Cleaner, Redshift 468 cam, Power Vision.
2003 Super Glide 100th Anniversary Edition
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post #6 of 12 (permalink) Old 06-07-2019, 09:57 AM
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I have their latest version, 3 months and just over 5k, no problems absolutely love it.

2010 FLTRX With Plenty of extras, goes by the name "Hardeshia"
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post #7 of 12 (permalink) Old 06-20-2019, 08:42 AM
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Just installed one of these from eastern performance . Haven’t tried it yet, but I was curious if anyone measured the stroke with a dial indicator like the manual says. According to the instructions you should get .072 movement on the push rod. All I could get was.065. Has anyone else seen this. And how does the clutch fell. Also the clutch line went in exactly like stock does this mean I have a Gen. 1??
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post #8 of 12 (permalink) Old 06-20-2019, 09:02 AM
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Originally Posted by ROCK FISH View Post
Just installed one of these from eastern performance . Havenít tried it yet, but I was curious if anyone measured the stroke with a dial indicator like the manual says. According to the instructions you should get .072 movement on the push rod. All I could get was.065. Has anyone else seen this. And how does the clutch fell. Also the clutch line went in exactly like stock does this mean I have a Gen. 1??
It just needs to move far enough to release the clutch. The measurement is how the MoCo determines that all of the air is out of the system and is only valid with the oem cylinder installed. The AIM trade stroke for power, so you'll have less stroke indicated on the dial indicator.


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post #9 of 12 (permalink) Old 06-20-2019, 09:05 AM
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Originally Posted by jchar27 View Post
AIM says they will send me the new one out. I'm waiting for their instructions. Now I have to find the stock one and pop that back on so I'm not down for a week waiting for a new part.
I wouldn't do that, I'd just top it off and carry a little bottle of fluid with me.

I'd be surprised if it needed a second topping off between now and when the new cylinder shows up. You can also add extra fluid above the line for the short term. All that unused space is to allow for clutch plate wear. And you're just not going to have very much of that in the short term. I wouldn't fill it to the top, but I'd be comfortable using up half of the open space. Just remember to allow for the space the gasket uses up.


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Last edited by Thermodyne; 06-20-2019 at 09:12 AM.
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post #10 of 12 (permalink) Old 06-20-2019, 03:19 PM Thread Starter
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Originally Posted by Thermodyne View Post
I wouldn't do that, I'd just top it off and carry a little bottle of fluid with me.

I'd be surprised if it needed a second topping off between now and when the new cylinder shows up. You can also add extra fluid above the line for the short term. All that unused space is to allow for clutch plate wear. And you're just not going to have very much of that in the short term. I wouldn't fill it to the top, but I'd be comfortable using up half of the open space. Just remember to allow for the space the gasket uses up.
I had to send the old one back before they'd send me a new one. Weather has been crappy and life has been busy. Mailed unit Tuesday, they got it today. They shipped me a new one today.

2018 CVO Road Glide, Black Earth/Vivid Black
Fuel Moto Road & Track 2 into 1, Fuel Moto custom K & N Air Cleaner, Redshift 468 cam, Power Vision.
2003 Super Glide 100th Anniversary Edition
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