Pre-1997 Models

'91 5.0L distributor/timing problem?

Old Feb 26, 2010 | 01:41 PM
  #1  
lumpster's Avatar
Thread Starter
|
Junior Member
Joined: Feb 2010
Posts: 3
Likes: 0
'91 5.0L distributor/timing problem?

The distributor mounted icm shorted out. So I got a new one, but I forgot to mark the rotor alignment on the distributor housing. I did mark the distributor position in reference to the engine. So what should I do now to get it running? It almost starting when I put it back together but I'm assuming the timing is off now. Thanks for any help.
 
Reply
Old Feb 26, 2010 | 09:02 PM
  #2  
avfrog's Avatar
Senior Member
Joined: Oct 2009
Posts: 6,172
Likes: 1
From: Missouri
You will have to start over with #1 TDC.
 
Reply
Old Feb 27, 2010 | 09:25 AM
  #3  
ymeski's Avatar
Senior Member
Joined: Aug 2008
Posts: 338
Likes: 0
From: Long Beach, Ca.
Originally Posted by avfrog
You will have to start over with #1 TDC.
TDC/#1 Cyl. on the compression stroke only. There are 2 TDC/#1'Cyl.'s. If you use the Exhaust stroke, your timing will be 180 degrees out. You won't like it. The symptom will be similar to a jumped timing chain. The Piston throw is slightly farther on the Compression stroke. http://fordfuelinjection.com/?p=71
 
Reply
Old Feb 27, 2010 | 10:11 PM
  #4  
avfrog's Avatar
Senior Member
Joined: Oct 2009
Posts: 6,172
Likes: 1
From: Missouri
^ I assumed anyone would know that if they have ever timed a motor. I should have elaborated though, thanks for clarify!
 
Reply
Old Feb 28, 2010 | 04:13 PM
  #5  
ymeski's Avatar
Senior Member
Joined: Aug 2008
Posts: 338
Likes: 0
From: Long Beach, Ca.
Originally Posted by avfrog
^ I assumed anyone would know that if they have ever timed a motor. I should have elaborated though, thanks for clarify!
It's a b*tch, finding out the hard way. A lot of people don't know the plugs fire twice, once on the compression stroke, & once on the exhaust stroke. Which is why they think it's trying to run if it's 180 degrees out!
 
Reply
Old Feb 28, 2010 | 04:18 PM
  #6  
ymeski's Avatar
Senior Member
Joined: Aug 2008
Posts: 338
Likes: 0
From: Long Beach, Ca.
If your referring to the TFI module, that doesn't require Dist. removal. The PIP sensor does! (aka: Stator/Hall effect) The PIP & TFI module are usually replaced at the same time, because of their close interaction, and similar usable life expectancies. Kinda like a preemptive measure. http://fordfuelinjection.com/?p=25
 

Last edited by ymeski; Feb 28, 2010 at 04:26 PM.
Reply


Thread Tools
Search this Thread

All times are GMT -4. The time now is 09:02 AM.