Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

timing mark confirmation help

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Old Jul 1, 2007 | 06:04 PM
  #21  
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paddy187
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Default RE: timing mark confirmation help

here we go

[IMG]local://upfiles/40810/0728057C1B7D43D39BF2B51E2C3D6823.jpg[/IMG]
Old Jul 1, 2007 | 06:14 PM
  #22  
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Default RE: timing mark confirmation help

Paddy187, when the marks are aligned on the bottom photo above, the rotor points to #6 directly opposite #1. When the marks are on the top photo the rotor points at #1. This timing stuff, arg....... Love to see the scan if you can get it working, thanks.
Old Jul 1, 2007 | 06:16 PM
  #23  
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Default RE: timing mark confirmation help

cool, I see your scan - this is where my rotor points to #6 at 180 degrees opposite the #1 in the distibutor cap diagram that "Almost Stock" posted.

This is where I turned the marks to when I replaced the timing chain.
Old Jul 1, 2007 | 06:24 PM
  #24  
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paddy187
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Default RE: timing mark confirmation help

You should be pointing at #1with the marks at the positions in the scan when you put the timing chain on, so my guess is your cam you are 180 out. My haynes says "If the task is being carried out with the engine in the vehicle and the distributor has not been removed, lift off the distributor cap and check that the rotor is pointed towards #1 cylinder spark plug lead position if not rotate the camshaft 180" this is before installing the sprokets.
Old Jul 1, 2007 | 07:39 PM
  #25  
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Default RE: timing mark confirmation help

it should be as paddy say.. but on my 289 i noticed when the cam and crank dots were aligned it was the 3rd (?)piston (one next to the #1) was on tdc

you can tryusing a "piston-stop" to find exact tdc for piston one

arthur
Old Jul 1, 2007 | 09:00 PM
  #26  
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Default RE: timing mark confirmation help

You have two strokes per every cycle ; compression and exhaust.
The compression stroke is a pushingstroke and the exhaust is a sucking stroke for late of a better term.
You shouldbe able to feel and hear the compression strokewith the escaping of air as it pushed by the piston, and you can feel it with your finger as you well know, but you should be pushing air on both strokes (compression and exhaust).


Make sure your on the #1 cylinder
Make sure the Rotor is pointing to the #1 plug wire
Make sure that you are Dot to Dot on the Cam sprocket and Crank sprocket
Make sure your timing pointer is pointing to TDC on the harmonic balancer

Then your good to go!



Old Jul 2, 2007 | 01:31 AM
  #27  
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Default RE: timing mark confirmation help

Almost stock, you rock dude! I am a little slow but now I get it. I am not sure if I did something strange when I took the prior timing chain set off or what but I am definitely 180 degrees out according to the lesson above. Should I take the timing chain off and rotate the camshaft around to get this correct or should I just align the dots and move the distributor shaft to get the rotor pointed toward cylinder #1?
Old Jul 2, 2007 | 10:24 AM
  #28  
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Default RE: timing mark confirmation help

If it were me and I wasn't sure that those dots lined up : I would take it apart and redo things right now, otherwise you'll never get it to fire up.Just my $.02.
Old Jul 2, 2007 | 08:45 PM
  #29  
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Default RE: timing mark confirmation help

I would agree, time to do it right
Old Jul 2, 2007 | 09:03 PM
  #30  
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Default RE: timing mark confirmation help

Once you see everything and how thingsare related to one another it will make complete since to you,and the next time you'll be telling someone else what to look for.

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