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New engine thatís been sitting awhile damage (pictures) >

New engine thatís been sitting awhile damage (pictures)

New engine thatís been sitting awhile damage (pictures)

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Old 01-09-2019, 01:46 AM
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Default New engine thatís been sitting awhile damage (pictures)

Hey guys I had an engine tonight I pulled apart from around 2013 I never used, from the pictures you can see some major looking corrosion. To my knowledge I bought this brand new, I believe itís new but I know time has had its way with my internals and I want to use this engine, can this be cleaned? The engine is a crf 7 port engine. I got this because Cody king won the worlds with the 5 port and was told the 7 was a monster version. I wanna bring it to life.






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Old 01-09-2019, 02:04 AM
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Any help is great
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Old 01-09-2019, 03:21 AM
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Probably dried oil, use some denatured alcohol and try to wipe it off. Flush the bearings and make sure they don't feel gritty, and remove piston pin so you get it all out.
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Old 01-09-2019, 04:19 AM
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Try soaking in nitro
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Old 01-09-2019, 05:02 AM
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I'd replace the bearings but clean everything else. Assuming that's actually rust, which it appears to be.
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Old 01-09-2019, 05:27 AM
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Originally Posted by timjs View Post
I'd replace the bearings but clean everything else. Assuming that's actually rust, which it appears to be.
Dryed up oil can look the same. Yes, it is wise to take out the bearing also t let it soak in nitro.
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Old 01-09-2019, 11:52 AM
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Judging by how I can wipe this rust looking stuff off with my finger Iím guessing itís dried oil. I donít have access to a bearing puller so i think Iím just going to put everything I can in nitro and let it sit a awhile then use a tooth brush.
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Old 01-09-2019, 11:53 AM
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Originally Posted by Matt Piva View Post
Judging by how I can wipe this rust looking stuff off with my finger Iím guessing itís dried oil. I donít have access to a bearing puller so i think Iím just going to put everything I can in nitro and let it sit a awhile then use a tooth brush.
😁
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Old 01-09-2019, 02:43 PM
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Originally Posted by houston View Post
😁
u love seeing that name lol

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Old 01-09-2019, 11:37 PM
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Originally Posted by Matt Piva View Post

u love seeing that Matt Piva name show up now that u know who it is huh 😉
something like that ....lol


soak it in fuel ..... spin everything ..... might be some flaking of steel on the races though
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Old 01-23-2019, 09:33 PM
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a soak in denatured alcohol will clean most of that off
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