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Old 09-20-2007, 04:44 AM   #1
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Default Inner button head - polishing after engine has been pitted

Hi Guys

Just wanting to know if its good to lightly sand/polish the inner button head after its been pitted?

should i replace the head instead?
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Old 09-20-2007, 04:45 AM   #2
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I forgot to mention ive done this to this engine once before
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Old 09-20-2007, 06:20 AM   #3
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Quote:
Originally Posted by mrgsr View Post
Hi Guys

Just wanting to know if its good to lightly sand/polish the inner button head after its been pitted?

should i replace the head instead?
Replace the head button... A pitted head button is due to a bad tune and by sanding/polishing it, will cause your motor to loose compression as well. Your head clearance will be off and most cases the button will not seal with the sleeve properly either... For what $10.00-$15.00 USD, go buy a new head button, run the proper plug/nitro% combination, run a tune pipe more suited to the motor you're running, don't run your motor out of tune/to lean... and you won't have anymore pitted head button issues... Your motor will run faster, your glow plugs will last longer and your motor will be happy you did...

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Old 09-20-2007, 06:47 AM   #4
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No problem to do the rough part with waterproof sandpaper and the rest with a multitool with a polishing bit.
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Old 09-20-2007, 07:30 AM   #5
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I polished up the button with some real fine sandpaper then polished it up with aluminium polish, ill see how it goes on the weekend.
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Old 09-20-2007, 10:54 AM   #6
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Default Polish

I think you can polish it and it will work fine. If you read the plug you can shim the head properly.
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Old 09-20-2007, 02:33 PM   #7
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Replace it
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