[MR2] Ongoing problem, will not start, mk2T, 3rd gen-UPDATE

[waynearndt at waynearndt.com]

Take my comments a little as a grain of salt because I'm not as
mechanically inclined as I'd like, but this is scaring me as I envision him
turning the crank until the shaft itself hits a broken rod which has
dropped to the bottom of the cylinder...I hope I'm wrong!!

-wayne
'91 Turbo T




 

On Tue, 13 Apr 2010 10:00:47 -0500 (CDT), Kurt Krueger
<telek2 at verizon.net>
wrote:
> Apr 13, 2010 07:37:03 AM, chrissul at comporium.net wrote:
> 
>>
>>removed the alternator belt, alternator spins freely.  Cannot turn the
>>crank
>>
>>by hand clockwise, can turn counterclockwise about 1/2 a turn(180
>>degrees)
>>maybe..not quite that much.  it also emits a squeak when I do that.  Can

>>then turn back to the original position.  I cannot turn it very far in 
>>either direction, honestly.  180 degrees is probably optimistic.
>>
>>like I said, car ran PERFECTLY FINE, has oil (1500 miles, mobil 1 every 
>>3000-3500 miles), coolant, etc.   until the morning it fired and died.
>>
>>Car is out of gear, plugs are out,
>>
>>So what should I do next?
> 
> Not likely anything dropped into A cylinder.  If a piston was hitting
> something, you'd
> have about 360 degrees of rotation back and forth.  To get only 180 it
> would have
> to involve two cylinders.
> 
> I take it you don't get any metallic sounding clunk when it hits the end
> of travel.
> If something was being hit internally, you might be able to hear it when
it
> makes contact and get a clue what/where it is.
> 
> Water pump uses a centrifugal impeller.  It's not likely to have a
definite
> range of motion like you experience.  Oil pumps use gears to move
> oil (at least most do).  A broken tooth could behave like you observe.
> 
> If it were my engine, I'd continue like you did with the alternator. 
> Start eliminating
> things that turn.  Anything else turned by a belt, then distributor,
then
> remove
> the timing covers and deal with the timing belt (3rd gen does have a
> timing belt,
> right?).
> 
> I hope you find something.  If you do all the above an it still won't
> turn, you've got
> something internal to the engine.  Like a thrown rod.
> 
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