Hi Andy,
At 03:19 08:03 02/11/99 GMT, Andy Webster wrote:
>
>I figure 'running clearance' is the one I check but what is 'timing
>clearance'?
>
Believe "Timing Clearance" to be the gap needed in the tappets, while
checking the given valve opening degrees. It would seem logical that
a larger gap would lead to a delay in a valve opening, relative to
Crankshaft degrees of rotation.
Anybody got any other ideas?
Cheers,
Ron Corry
Longford, Ireland.
'59 Sprite "Oggibip"
>>From: "Ron.Corry" <Corry@iol.ie>
>>To: "Andy Webster" <trunkie@hotmail.com>
>>CC: spridgets@autox.team.net
>>Subject: Re: tune up questions..longish
>>Date: Mon, 01 Nov 1999 21:20:10
>>
>>Hi Andy,
>>
>>"Tuning BMC Sports Cars" by Mike Garton (1969) gives the following,
>>in relation to the C-AEA 731 cam:-
>>
>>Running clearance .015"
>>
>>Timing clearance .021"
>>
>>Hope this helps.
>>
>>Ron
>>59 Sprite "Oggibip"
>>========================================================
>>At 12:33 01/11/99 GMT, Andy Webster wrote:
>> >Greetings,
>>Snip...
>> >My tune up book states valve clearances of .012" or .015" for
>>competitiom
>> >driving...why is this? Should I be using .015" seeing I have a modified
>> >engine (731 cam, extractors)?
>>
>>
>
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