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Timing chain, guides and tensioner installation (Possible orientation in Intake Stroke)

  • Thread starter Thread starter StallionMax
  • Start date Start date Sep 21, 2025
  • Tags Tags
    4.6 2v crankshaft cylinder head engine timing chain timing issue
S

StallionMax

Member
Sep 27, 2017
4
1
13
Sep 21, 2025
#1
  • Sep 21, 2025
  • #1
Hello Everyone,

I recently had a Spark plug blow out of my cylinder head and became eager to fix it. I have already repaired the spark plug threading on the head and torqued the head down following proper torque spec and sequence procedure. In the process of removing the timing cover I set the crank to TDC on cylinder #1 however, When I removed the timing cover the timing marks on the camshaft were not at the respective degrees being 11 and 12 o'clock (from what I've looked up) they are both fairly close to being 180 degrees away from where they should be. I theorize that this means I left it in the intake stroke when I removed everything (I did not realize this until I removed the chains. During the removal of the head (Passenger side) I had a cam holding tool in place and when I went to pull the head off the tool snapped and came loose causing the cam gear to shift slightly. Luckily I marked the orientation of where it lined up before hand (seen on second image). The third image represents the current position of the crankshaft sprocket (Timing mark) seems to be right where it needs to be at the 6'clock position. First of all, I would love and appreciate it if anyone can confirm this suspicion of being in the compression stroke and give me advice on how to correct it. I have all new tensioners, chains, and guides. If anyone has recommendations, or guidance I would greatly appreciate it. Thank you very much and have a blessed day!
 

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  • Mustang Engine (Camgear position).webp
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  • Mustang Engine (Cranksproket position).webp
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squeak93

15 Year Member
Jun 2, 2005
2,284
370
164
Joplin, Missouri
Sep 24, 2025
#2
  • Sep 24, 2025
  • #2
I would agree that you are 180 out based upon your pics and description. I would think you can pull the remaining installed side followers (maybe both heads are on the car now? hard to tell from you story) so all the valves close and rotate everything to get it all in the correct orientation to retime.

BTW if you removed the head to fix a spark plug the timesert tool kit allows for repairs on engine. Unless I'm not following the reason to pull chains/head etc.
 
S

StallionMax

Member
Sep 27, 2017
4
1
13
Sep 24, 2025
#3
  • Sep 24, 2025
  • #3
squeak93 said:
I would agree that you are 180 out based upon your pics and description. I would think you can pull the remaining installed side followers (maybe both heads are on the car now? hard to tell from you story) so all the valves close and rotate everything to get it all in the correct orientation to retime.

BTW if you removed the head to fix a spark plug the timesert tool kit allows for repairs on engine. Unless I'm not following the reason to pull chains/head etc.
Click to expand...
Thank you for replying! So initially I broke everything down to repair the spark plug threads (which was done and head gasket replaced with head torqued down). So I would have to remove the cam followers for i would be able to rotate the camshaft freely without interference? My only concern is being that crankshaft is in TDC possibly in the intake stroke , if thats going to make a difference or not. I would imagine it wouldn't matter as long as cylinder #1 is tdc . I'm sitting here in my back yard like goku channeling the largest spirit bomb to get this car back on the road. Thanks again
 
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