Energy One Clutch Pack oil recommendation

[Matt Wech]

Hi there,
I have an ‘07 Mastiff and I am in the process of replacing my clutch pack and pressure plate with an Energy One 9 plate setup. It appears that on the forums, everyone is recommending a non-synthetic 20-50 weight, but on the card from Energy One, they state to use ATM Type F, 10-30, or a B&M Trick Shift. This is for the “pre-soak” but then they go on to say, use the same oil you plan to use for the primary that you pre-soaked it in. So this leaves me a little confused.
any guidance here would be very appreciated!
Thank you

 

[Matt Wech]

Here is the card from Energy One that I’m referring to.

 

[TreeGuru]

HDM (bigdogpartskingpin.com)

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[HMAN]

Ima fan of ATF.. Can get it anywhere and its cheaper. Everybody got their own opinion tho.

 

[Mr. Wright]

Nothing wrong with Type F ATF, but my shop uses Harley primary fluid.

 

[Matt Wech]

Appreciate the replies here, gents. Curious why there is so much variation from 10-30 to 20-50. I’m guessing ATF at a 10-30 weight has different properties than a regular motor oil. Im no expert here, just want to protect my internals
Appreciate you all for taking the time to respond

 

[Mickmorris]

I like this in my primary. In the BigDog manual they say Not to use ATF but you know how that goes.. lol
For reference purposes. See below.

 

[Matt Wech]

Wow, this is excellent, appreciate you, Mick!

 

[Mickmorris]

Wow, this is excellent, appreciate you, Mick!

One note. The ‘05 & up models only use 22 ozs. In the primary NOT 32 as stated for the older models. You will notice how thin your ‘07 primary case cover is compared to the ‘04 & earlier.

 

[Matt Wech]

Primary assembly looks to be in great health, fluid looks like chocolate milk, though. Almost zero metal shavings. I used a magnet and rolled it through the pan and it hardly picked anything up. Magnet on the drain plug was almost with zero metal shavings as well. So that’s good…. I also noticed some rubbing on the inside of the primary cover where the pressure plate bolt heads have been rubbing ever so slightly, a bit concerning there….This is a new-to-me bike so I’m still in the process of getting to know her.

 

[Matt Wech]

Clutch with plates out

 

[knothead]

The rubbing is from the clutch hub nut coming loose...not saying its loose now but at one time it was forsure....I would check it to make sure it was still tight since you are in there

 

[Matt Wech]

So I ordered the 9 plate thinking my plates were worn, upon inspection, it already has the 9 plates and they appear to be in good shape with little wear. Clutch is slipping in 3rd on up under torque. Sooooo, maybe the culprit is either the fluid or the pressure plate. She looks somewhat worn and I do have the upgraded plate ready to go, so hopefully that was the cause of the slipping

 

[Matt Wech]

Sure looks like a lot of wear here

 

[Mickmorris]

Sure looks like a lot of wear here

Almost a guarantee that is your problem. Keep us posted on your progress with adjustments when you get it back together.

 

[Mickmorris]

Clutch with plates out

Looks pretty good!

 

[Mickmorris]

The rubbing is from the clutch hub nut coming loose...not saying its loose now but at one time it was forsure....I would check it to make sure it was still tight since you are in there

100%

 

[Mickmorris]

BigDog Torque specs for the primary. In case you are needing them. You will notice the clutch hub nut has a different torque spec on the ‘05 & later. Very important note.

 

[Matt Wech]

Mick

BigDog Torque specs for the primary. In case you are needing them. You will notice the clutch hub nut has a different torque spec on the ‘05 & later. Very important note. View attachment 121757
Mick, once again you are extremely helpful, sir.

 

[Matt Wech]

I’m just blown away by all of the support here, fellas. Tip of the hat to you all. I will certainly keep you all posted. Going to be a while, had to order a new primary case seal and the weather is crap here, but I will certainly let you all know how it turns out.
Thank you!