The phrase "cly 1 2 3" is not clear. Where would it be used - please explain and resubmit your question.
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
1-6-5-4-3-2
firewall #1----#2----#3 #4----#5----#6 front of vehicle ( for the V6 engine )
firing order of 4 Cly engine - 1 2 4 3 ..
In a Ford Crown Victoria and Ford F-150 ( V8 ) firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
On a Ford Windstar , V6 engine : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford F-250 ( V8 )
1-8-4-3-6-5-7-2 fire order. driver side front to rear is 1-3-5-7 other side is 2-4-6-8 front to rear. 1-8-4-3-6-5-7-2 fire order. driver side front to rear is 1-3-5-7 other side is 2-4-6-8 front to rear.
numder 1 cly
stage 1 - 15 to 22 ft-lbs; stage 2 - 30-37 ft-lbs; stage 3 - tighten an additional 90� to 120� (degrees)
The spark plug firing order for the 300 cubic inch straight six cylinder ( 4.9 L ) is ( 1 - 5 - 3 - 6 - 2 - 4 ) The spark plug firing order for the 4.2 L V6 engine used in the 1997 F150 is ( 1 - 4 - 2 - 5 - 3 - 6 )
negative 1 over 3