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How to refinish engine exterior (Read 189 times)
Blvd1960
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How to refinish engine exterior
10/30/18 at 13:19:13
 
Good day, I just found out I should not have used a degreaser to clean the exterior of my engine. Just sprayed it on the engine and was about to rinse it (one to two minutes) and it stained the aluminum case blackish stains, looks as this part had a clear paint covering it, because it peeled.
What do you recommend to repair this damage?
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Re: How to refinish engine exterior
Reply #1 - 10/30/18 at 13:20:51
 

Pictures
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IMG_20181030_120652898_001.jpg

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Re: How to refinish engine exterior
Reply #2 - 10/30/18 at 13:26:46
 
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Blvd1960
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Re: How to refinish engine exterior
Reply #3 - 10/30/18 at 13:29:46
 
picture 2
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Re: How to refinish engine exterior
Reply #4 - 10/30/18 at 13:37:23
 
It doesn't say it on the package, but Castrol Super Clean should never be used on cast aluminum.

I only trust simple green and a nylon brush...and a pressure washer.
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Re: How to refinish engine exterior
Reply #5 - 10/30/18 at 13:41:24
 
Blvd1960 wrote on 10/30/18 at 13:29:46:
picture 2

THANKS!
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Re: How to refinish engine exterior
Reply #6 - 10/30/18 at 13:43:51
 
Gary_in_NJ wrote on 10/30/18 at 13:37:23:
It doesn't say it on the package, but Castrol Super Clean should never be used on cast aluminum.

I only trust simple green and a nylon brush...and a pressure washer.


Any recommendation on how to get rid of the stains? Thank you.
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Re: How to refinish engine exterior
Reply #7 - 10/30/18 at 14:24:14
 
I think the stains are permanent. You could try to polish the stains, but I think you will find they are etched into the material.

A painted engine looks nice...just sayin'
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Re: How to refinish engine exterior
Reply #8 - 10/30/18 at 14:25:13
 
I would assume that the clear coat was removed.
So to get it back to stock finish, polish and re-coat.
Or completely remove the clear coat and repaint with color of choice.
Or buy new covers and never use dat sh!t again.
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Re: How to refinish engine exterior
Reply #9 - 10/30/18 at 14:35:22
 
Sufficient road grime makes it easy enough to not care.
Ride it.
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Re: How to refinish engine exterior
Reply #10 - 10/30/18 at 14:59:56
 
Aircraft stripper will remove the rest of the clear, you could try polishing and recoating with clear (IF YOU ENJOY HOURS OF WORK)  . Others have found it much easier to find paint used for repainting "mag" car wheels (which is Silverish-many different shades) ,it looks decent ,and is tough ,but doesn't gleam like chrome.
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Re: How to refinish engine exterior
Reply #11 - 10/30/18 at 15:06:14
 
I think this last option mentioned is the easiest and maight work well, will look for that mag wheel paint.

Thank you all!!!
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Re: How to refinish engine exterior
Reply #12 - 10/30/18 at 17:40:00
 
I stripped the clear coat from mine and polished them.  They look great - but you do need to polish them a couple times a year.

I never use Simple Green, Purple Power or any of those aggressive things on my bike - I only use Bike Bright or S100....they are made for use on motorcycles and don't harm the paint or chrome or aluminum.
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Re: How to refinish engine exterior
Reply #13 - 11/02/18 at 16:13:58
 
Dave wrote on 10/30/18 at 17:40:00:
I stripped the clear coat from mine and polished them.  They look great - but you do need to polish them a couple times a year.

I never use Simple Green, Purple Power or any of those aggressive things on my bike - I only use Bike Bright or S100....they are made for use on motorcycles and don't harm the paint or chrome or aluminum.




Dave, do you remember which grade of grit you began the polishing with? I intend to polish mine as well, and was just recently wondering what grade grit to start with.
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Re: How to refinish engine exterior
Reply #14 - 11/02/18 at 18:28:43
 
3m green scrubbing pads on an orbital, with a spray bottle of water.
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