[Shotimes] Clarification on: SHO cranking but not starting

Mike.Wojton@us.o-i.com Mike.Wojton@us.o-i.com
Fri, 5 Mar 2004 08:33:50 -0500


Well, I for one, have definitely been put in my place. But I wanted to
go back to the original post for a second.

"the engine turns over slowly but does not catch. The starter has
that high 'whir' sound--it does not seem to engage the flywheel at all."

If the engine turns over, then the starter is engaging the flywheel.  Now,
there's all manner of prospective problems after that, but it explains
why the majority of the discussion revolved around starters and solenoids.


Mike Wojton
Toledo, Ohio

-'95 White MTX
   '96 Brake Upgrade

"Avoid the clap." - Jimmy Dugan



shotimes-admin@autox.team.net wrote on 03/04/2004 11:15:03 PM:

> It's amazing the kind of asinine arguments people get into over idiotic
> things, and whoever shouts the loudest wins.
> 
> In any case...  Abnormal cranking like you describe which is not caused 
by a
> defective starter or cables can often be traced to a timing belt 
problem.
> 
> Do the serpentine belts/accessories move consistently when cranking? 
Next
> thing to check would be to remove your oil filler cap and visually 
verify
> that the cams are turning when the starter is cranking.   If they are, 
I'd
> next want to verify the timing, if they aren't, your timing belt is 
probably
> broken.  While I suppose it may be a starter or battery/starter cable
> problem, I think it would be unusual to see this with two different
> starters.  Another way to test would be to use a compression gauge on 
the
> front three cylinders.  If you get no, or really out-of-whack 
compression
> readings, your motor is most likely out of time.
> 
> Hope this is a little more helpful than a bunch of useless posts about 
how
> starters work! :)
> 
> -----Original Message-----
> Reply-To: <jkoper@frankgates.com>
> From: "Koper Jim" <jkoper@frankgates.com>
> To: <shotimes@autox.team.net>
> Date: Wed, 3 Mar 2004 09:40:53 -0500
> Subject: [Shotimes] Clarification on:  SHO cranking but not starting
> 
> Thanks to those that have offered their advice so far, but I think I 
didn't
> word the problem correctly.
> 
> To clarify, the engine turns over slowly but does not catch. The starter 
has
> that high 'whir' sound--it does not seem to engage the  flywheel at all. 
The
> portion of the flywheel I could see with the starter removed was not 
missing
> any teeth, so wouldn't the (new) starter engage OK? If the starter is 
good
> but the flywheel bad, would the engine even turn at all? That's why I 
wonder
> if maybe the DIS or coil are bad. I gotta remember to check if the fuel 
pump
> is priming at KOEO.
> 
> 
> <Original post below for those who wish to contribute:>
> 
> My '92 SHO is exhibiting a no-start behavior. I went to start it the 
other
> day and it didn't quite catch after I released the ignition key. It was 
a
> solid crank. "No big deal", I thought, "I'll try again." The second time 
I
> tried it I heard an electric whirring sound, similar to when a starter 
is
> bench tested. I figured the armature gear was not engaging the flywheel. 
The
> starter was 4 years old (Ford reman), so I yanked it and put an Advanced
> Auto Parts reman starter on the car. SAME WHIRRING SOUND occurred, so 
the
> starter does not appear to be the weak link.
> 
> A few observations:
> 
> When the starter is whirring, I noticed the serpentine belt was turning,
> though slower than what I'd think a normal crank would produce.
> 
> The engine does not catch now, but does turn.
> 
> Complete 60K done in summer 02 (10K miles ago). Timing belt, camshaft 
sensor
> and crankshaft sensor replaced at that time.
> 
> New plugs and wires recently.
> 
> Until this happened, it always cranked solidly.
> 
> Any ideas? Would the DIS be bad? Ignition switch on its way out? Fuel
> injection concerns? I want to pull the timing belt cover to verify the 
belts
> OK.
> 
> Thanks in advance!
> 
> Jim Koper
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