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06-24-2007, 10:47 AM
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#1 |
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River life......
Join Date: Oct 2005
Location: Soldotna AK
Posts: 1,078
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Engine component quiz
Explain what type of piston this is. What is the divot for?
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06-24-2007, 11:06 AM
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#2 |
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Active Member
Join Date: Apr 2005
Location: Miami, Florida
Posts: 286
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Re: Engine component quiz
Looks to be a dish-top piston, donno what the divot is there for though...
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"The Great State of Florida" |
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06-24-2007, 11:07 AM
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#3 |
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Spanked once
 
Join Date: Oct 2006
Location: Intheshop, Indiana
Posts: 969
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Re: Engine component quiz
Front?
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06-24-2007, 11:34 AM
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#4 | ||
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River life......
Join Date: Oct 2005
Location: Soldotna AK
Posts: 1,078
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Re: Engine component quiz
Quote:
The divot is towards the rear Quote:
I found this on summits site, but it is not as extreme. 
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Last edited by Southedisto; 06-24-2007 at 11:39 AM. |
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06-24-2007, 11:51 AM
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#5 |
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Spanked once
Join Date: Oct 2006
Location: Intheshop, Indiana
Posts: 969
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Re: Engine component quiz
A lot of pistons do have orientation notches in them , never seen one so extreme as the first pic. Interesting.
That is the piston that came out of my 4 bolt 72 donor 350. Last edited by Richard H.; 06-24-2007 at 11:58 AM. Reason: * |
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06-24-2007, 09:00 PM
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#6 |
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GEARHEAD
Join Date: Jan 2007
Location: CENTRAL,PA
Posts: 2,284
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Re: Engine component quiz
I agree that it is a orintation mark for foward. I hve seen some excentric engine builder change this up and claim benifits in power on track. I not sure I beleive it. but the pin is off set in some pistons so there will be a difference if they are changed.
RJ22... 
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Last edited by RACINJASON22; 06-24-2007 at 09:02 PM. |
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