Keeping The Black Engine Case Clean
Thread Starter
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Intermediate
Joined: Oct 2018
Posts: 29
Likes: 1
From: Deep South
Keeping The Black Engine Case Clean
I noticed the black crinkle finish engine case has started getting some fading or oxidation on it. The cylinder fins are also looking a little rough with some oxidation. I can polish the engine fins with aluminium polish but that is a pain and does not help with the black case finish.
I was looking for ideas from the group as to what most people use the keep the engine looking decent. Anyone use F11?
I was looking for ideas from the group as to what most people use the keep the engine looking decent. Anyone use F11?
Seasoned HDF Member
Joined: Nov 2018
Posts: 10,833
Likes: 6,485
From: Canada Flats
A friend of mine did his engine last year with " engine brightener " he bought at the local dealer . It literally made his engine look brand new . I have a can sitting on my bench right now waiting for me to change the oil first .
Road Warrior
Joined: May 2017
Posts: 1,422
Likes: 981
From: Northern VA
I used the HD Engine Brightener on my old bike. It worked surprisingly well. I used a small spongy paint brush from Michael's to put it on the tough spots.
https://www.harley-davidson.com/store/engine-brightener
https://www.harley-davidson.com/store/engine-brightener
Seasoned HDF Member
Joined: Nov 2018
Posts: 10,833
Likes: 6,485
From: Canada Flats
[QUOTE=Studlintsean;18133946]I used the HD Engine Brightener on my old bike. It worked surprisingly well. I used a small spongy paint brush from Michael's to put it on the tough spots.
https://www.harley-davidson.com/store/engine-brightener[/QUOTE
Great tip there , Thank-you !! I'll have to run out and pick some up . Did one can give you enough to finish the job ??
https://www.harley-davidson.com/store/engine-brightener[/QUOTE
Great tip there , Thank-you !! I'll have to run out and pick some up . Did one can give you enough to finish the job ??
Advanced
Joined: Mar 2019
Posts: 78
Likes: 5
From: PENNSYLVANIA
Silicone spray
After researching a bit last summer. I used regular silicone spray. I washed and dried the bike. Sprayed the engine with silicone spray and then rinsed and dried the bike again. The first ride after that their was a slight smell but after that no smell and engine looked brand new.
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Intermediate
Joined: Oct 2018
Posts: 29
Likes: 1
From: Deep South
Glad I asked. Never thought the dealer had something better at detailing than the aftermarket stuff. I have used Pledge furniture polish on plastics and the windshield.
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Road Warrior
Joined: Jul 2012
Posts: 1,541
Likes: 412
From: Studio City, CA via Rochester, NY
Do NOT use F11 on the black casing. That stuff is crap to begin with, but on hot motors it will bake on and leave white spots. I learned the hard way. Personally, I like pig spit. Spray it on and you’re done. It’s a bit thinner than HD Engine Brightener which I prefer.