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cleaning heavy soot in exhaust

  • Thread starter Thread starter slamonte
  • Start date Start date
TheBigRed said:
Ok, this has me wondering, would this procedure be harmful to the aluminum that is the engine of our wonderful bikes, to remove years and years of oil grime..... I'm thinking that the aluminum would be too porous for this to work without damage, but if it would work, would save HOURS of cleaning.

Amos
Click to expand...

Caustic soda will cheerfully eat all the aluminum you put into it. Porosity has nothing to do with it, the aluminum is simply too reactive and will be badly damaged.

An additional caution - any steel you clean with caustic (NaOH if anybody cares...) is completely bare when you are done and needs to be either painted or coated with a protectant or it will form surface rust in no time flat. Especially in the more humid climates. Where I live it is very dry, so we can leave bare steel for a few days before it gets red, but it will rust up in a few hours or less in high humidity locations.

Mark
 
dardoonk said:
If your wondering what happens to HCl & Aluminum,
clicky: http://www.youtube.com/watch?v=ksmgFA2yvnY
Click to expand...


Used to blow up wooden mailboxes with those in my younger and dumber days:oops:

Some kid tossed one in the commons area in between classes when i was highschool...took a while to go off, but when it did it scared the bejezzus out of everyone. Evactuated the school untill they found out what happened. Thankfully no one was around in the commons when it went off, or it could have done some hella damage to them. HCl in your face:shock:
 
Heavy "sooting" of a four stroke motorcycle exhaust is not an issue!!!
Leave it alone.
However having said that, heavy sooting is indicative of overly rich fuelling, this is an issue that should be dealt with.
So I suggest a thorough carb clean and balance, at least.
Is the bike modified from stock?? When were valve clearences last done??
Has ignition timing been checked??

Dink
 
Glad I found this. On other bikes I have also torched the baffles and smaller scooters like vespa's it's suggested to stick them in a gas barbque on high for an hour or two (preferably one you won't be using that weekend), and then hammering lightly and shaking out the loosened carbon. But I think the exhaust on my 650 is too big for either. I have heard of the draino cleaning, but wanted to hear from what others had done to clean out thiers.

Thanks again.
 
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