Mad Professor
Super OPE Member
- Local time
- 6:01 PM
- User ID
- 14251
- Joined
- Oct 21, 2020
- Messages
- 222
- Reaction score
- 739
- Location
- Northeast USA

I don’t mind if you ask me anything.
I use Simple Green branded Purple cleaner Pro in my USC. Unlike other purple cleaners, it won’t etch aluminum. I find it does the best job overall for me.
For cranks, I put them in a ziplock bag, cover with straight purple cleaner, and toss the whole bag in the USC. I’m paranoid that if I just put it directly in the USC, debris could migrate into the crank bearing. After I pull it out of the bag, I toss the cleaner into the mix. I rinse w water, blow out, then WD40. The 2T oil. You’d be amazed how bad every crank bearing feels totally dry. Every one feels bad until you lube it.
As for the seals, I do remove both sides. Not sure if I should remove the outer, as it could be a backup for the fly side seal. I figure the factory knew what they were doing, so I copy them.
A little space between the bearing and the seal should let fresh mix to flow in and out better with each cycle. Would loose that with 1-side sealed.
Might lube better and maybe cool the bearing? But then you loose the insurance policy of having 2 seals.