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RE: Boreing Cylinders

To: "'MG Board'" <mgs@autox.team.net>
Subject: RE: Boreing Cylinders
From: "Larry Hoy" <list@marketvalue.net>
Date: Thu, 17 Apr 2003 12:16:53 -0600
.040 isn't a problem, ever.

.060 probably isn't a problem.

.080 and .100 should be sonic tested first, and you better have a good
machine shop. Most MG blocks can be bored that much.

The 1950 engine is .130" over.  SOME MG blocks can go that far but not
all.

YMMV

Larry Hoy

> -----Original Message-----
> From: owner-mgs@autox.team.net 
> [mailto:owner-mgs@autox.team.net] On Behalf Of Dodd, Kelvin
> Sent: Thursday, April 17, 2003 9:34 AM
> To: 'Gregg Baker'; MG Board
> Subject: RE: Boreing Cylinders
> 
> 
> Gregg:
> 
> 
> I don't have the specifics, but the 1950cc oversize pistons 
> are substantially larger than +60 over.  
> 
> The B series engine is usually ok at +60, which is why the 
> piston is supplied.
> 
> I did have an engine block that failed, but the pistons in it 
> were +120 and that block ran for a number of years before 
> water jacket corrosion perforated the cylinder bore.
> 
> 
> Kelvin. 

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