[Mgs] TD bore measurements

[Charley & Peggy Robinson]

Are there ridges at the top that you can catch your fingernails in?

CR
On 7/19/2013 3:43 PM, Richard Lindsay wrote:
> Hi Friends,
>
> Today I spent a little time doing the kind of work I really like;
> diagnosis.
>
> Here's what the workshop manual says about the XPAG
> cylinders:
>
> Bore: 2.6180"
>
> 1st over-bore: 2.6381"
>
> Here are the measurements, made just a few minutes ago
> on my TD's cylinder #1.
>
> Note: The precision of my instrument is about 0.0003" and
> although I repeated the measurements a few times, these
> are the numbers I recorded.
>
> #1 Bore inline (top): 2.6390"
> #1 Bore inline (bottom): 2.6380"
> #1 Bore cross (top): 2.6388"
> #1 Bore cross (bottom): 2.6381"
>
> Ovality (top): 0.0002"
> Ovality (bottom): 0.0001"
>
> Taper (inline): 0.0010"
> Taper (cross): 0.0007"
>
> Initial interpretation:
>
> This engine is on its first over-bore and acceptably healthy,
> at least the #1 cylinder's bore.
>
> More measurements and more 'careful' measurements will
> be made once the the block is cleaned.
>
> -rick
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