[DeTomaso] Compression ratio

[eb0711 at kolumbus.fi]

No need to back off rockers if you just take the spark plug out, rotate 
engine and feel with your finger from spark plug hole when it's getting 
to the compression stroke. Air wants to purge out when piston goes up.
If the damper has marks every 90 degrees from cylinder #1 TDC (some 
aftermarket ones may have, or you can measure and mark yourself), just 
continue to rotate until the next mark and the cylinder should be on 
TDC. If you go further, the air does not come out anymore. If you 
measure from cyl #1, just feel the compression and take it to the TDC mark.

-Janne

3/16/2013 6:55 PM, Daniel C Jones kirjoitti:
>> Isn't it enough to measure at TDC?
> Only if you back the rockers of on an intake and exhaust pair.
> Otherwise cam overlap will bleed off compression.
>
> Dan Jones
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