RE: cams

["Sedon, Doug (OD)" <sedond@xxxxxxxxxxxxxx>]

	>Thanks Doug for the information about the cams.
	>
	>The info you provided does not appear to be at .050 lift. The reason I
say
	>this because the
	>
	>duration of both valves at the values you have given does not match the
	>duration values you
	>
	>gave at .050 lift.
	>
	>The duration of IO=37 & IC=61 is 278 and you said duration at .050 lift
is
	>225
	=======================
	1st, i said duration at .050 lift is 228.  this still jives - it yust
means that when opening, from 0.0 to .050 lift, it takes 25 degrees.  same 25
degrees when going from .050 to 0.0 when closing.

	>The duration of EO=60 &EC=24 is 264 and you said duration at .050 lift
is
	>205.
	===============
	same as above, yust change the 25 degrees to 29.5 degrees.

	mebbe these #'s are not right, but they are logical.  i suggest you call
a-r; they mite be able to verify...  800.225.alfa

	>Any one else has more info about cam timing at .050 lift for 2.5V6.
	i, also wouldn't mind confirmation on this...

	>Abe Kheraz
	========
	doug s.

	>Madison, WI
	==========
	jefferson, md

	-----Original Message-----
	From: Sedon, Doug (OD) <sedond@domain.elided>
	To: 'nasser@domain.elided' <nasser@domain.elided>
	Cc: 'alfa-digest@domain.elided' <alfa-digest@domain.elided>
	Date: Monday, December 07, 1998 8:28 AM
	Subject: cams


	>abe, among other things, you said:
	>>I am looking for the valve timing information @ .050 cam lift from a
	>>camshaft card for 2.5 V6 Milano engine. All the info I came across so
far=
	>> is just valve timing specs. If there is no such info available, how
can
	one
	>>tell when the valves are opening and closing for the purpose of
degreeing=
	>> a cam.
	>================
	>from the '91-'92 a-r catalog, v6 2.5:
	>valve timing:
	>io - 37
	>ic - 61
	>eo - 60
	>ec - 24
	>valve clearance, inches:
	>i - .019
	>e - .009
	>duration degrees crank:
	>i - 278
	>e - 264
	>overlap degrees crank:
	>61
	>lobe centers:
	>i, atdc - 102
	>e, btdc - 108
	>duration at 0.050" cam lift degrees crank:
	>i - 228
	>e - 205
	>cam lift, mm (inches):
	>i - 9.1 (0.358)
	>e - 6.4 (0.252)*
	>*exh rocker arm ratio is 1.4:1;  valve lift = cam lift x 1.4
	>
	>hope this helps,
	>
	>doug s
	>
	>

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