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Cylinder bore


Jack B.'s Avatar
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Join Date: Jul 2003
Posts: 590
AL

04-02-06, 03:11 PM   #1  
Cylinder bore

It's been quite a while since I bored out an engine. Does boring out an engine (0.010, 0.020 or 0.030) always require an oversized piston?

 
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JLOpower's Avatar
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Join Date: Dec 2005
Posts: 106

04-02-06, 05:17 PM   #2  
Yes. The clearances involved require a new piston with any overbore.

 
cheese's Avatar
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Join Date: Jul 2001
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GA

04-03-06, 01:31 AM   #3  
Yep, need oversized piston and rings. Is this on the 5hp briggs engine block? I don't know how close you are to SW. Ga., but I have a few good blocks and would be glad to give you one if it would save you the trouble of boring yours out.


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Jack B.'s Avatar
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Join Date: Jul 2003
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AL

04-03-06, 05:19 PM   #4  
Cheese,
The numbers on it are M - 130202, T - 0135-10, C - 73091407. As you can see its an old 1973 model. The cylinder was 2.562". I called Briggs and Stratton in Norcross Georgia and they don't make a short block anymore. If you think you might can help, just drop me an e-mail at [email protected]

 
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