[Healeys] Strange Timing Setting

Subject:	[Healeys] Strange Timing Setting
From:	warthodson at aol.com (warthodson at aol.com)
Date:	Sun, 11 Feb 2018 19:29:52 -0500

The question I have for Patrick is: Considering that the crank shaft goes 
around twice for every single rotation of the cam, how do you know whether the 
#1 piston is at TDC at the end of the compression/beginning of the power stroke 
or at the end of the exhaust/beginning of the intake stroke? I.E. The #1 piston 
is at TDC twice in a 4 cycle engine. What method are you using to determine 
which cycle you are on? The fact that the pointer is pointing at the mark/slot 
on the harmonic damper is not enough. 

To be at TDC on the compression/power stroke the inlet & exhaust valves should 
not be open. If the rockers are loose (I.E. the valves are closed) your are on 
the correct stroke. If the rockers are not loose you are either not on the 
correct stroke or your cam timing is not correct. 

Gary Hodson
 
 
-----Original Message-----
From: Per Schoerner per at schoerner.se

All
Slight misunderstanding here I think. I read Patricks text as ? piston 1 at TDC 
while you can rock the lifters by hand?. If the lifters are moved by the cam 
Gary is right.
Sorry for the confusion.


Per


Skickat fr?n min iPhone

11 feb. 2018 kl. 20:19 skrev Per Schoerner <per at schoerner.se>:



Gary
That is the end of/beginning of the compression/power strokes to me.


Per


Skickat fr?n min iPhone

11 feb. 2018 kl. 15:55 skrev warthodson at aol.com:





Your description stated "Number 1 piston is top dead centre and the rocker gear 
is rocking." Is that not a description indicating that the #1 piston is on the 
exhaust stroke? 
Gary Hodson
 




 







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