You mentioned the Haynes manual. I just visited their web site to see
what you are talking about? http://www.haynes.co.uk/ One might think
, judging by the language used in your correspondence quoted below (eg
bare, bored, insert it, all the way, down, piston, skirt) that you were
reading the wrong haynes manual, perhaps the one advertised on the home
page,. Better check the title page. : >
On Tuesday, February 24, 2004, at 02:05 PM, Triumphs@Autox.team.net
daily digest wrote:
>
> Subject: RE: To Rebore or Not To Rebore... That is the question!
>
>> Now that I'm down to a bare block I'm trying to decide if I need to
>> have
>> the cylinders bored out to oversize. The Haynes manual says to take a
>> piston sans rings, insert it 3/4" into the cylinder and measure the
>> clearance with a feeler gauge. Clearance should not exceed .010 in.
>> I
>> did this test and found a .013 feeler gauge can be inserted about 3/4"
>> of the way down between the piston and cylinder bore.
>
> Are you doing this with the piston the "right way up" in the bore ?
> The
> area where the rings go is normally a slightly smaller diameter than
> the
> skirt of the piston, and I'm pretty sure the Haynes instructions meant
> to
> measure between the piston skirt and the cylinder wall.
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