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944S engine locked

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Old Oct 9, 2018 | 12:51 AM
  #1  
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blein
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Default 944S engine locked

Here is the problem

I have a 1987 944s RHD – has been off the road for 4 years (ops on feet etc)

A friend said they would like to buy it if I can get it going.

Went out and tried to start it – it just turned over but no start. (note: it turned over many times)

Figured the petrol was old and battery didn’t have a lot of charge

Put new petrol in and charged battery – then – back in hospital for hip op.

Another year goes by

Get in car to try again – and clutch pedal hits floor.

Order new master/slave – wait - put them in – leak in hose – order new hose – wait

Bleed clutch – repeat many times

Clutch works

Try to start it – and just get click … order new battery - wait

Back in hospital for another hip op

Put battery in – still just click

Pull starter – works fine on bench

Scratch head

Put starter back in – still just click

Check voltages to starter – looks OK

Pull starter but leave wires on and try it as it dangles – starter works

Scratch head

Try and turn engine over by hand

Moves a ¼ turn and it stops – with a clunk

Turn it back a ¼ turn and it stops – with a clunk

Pull valve cover and turn engine - cams turn – till it clunks (distributor turns also)
(pistons go up and down also)

Scratch head

Loosen alternator/compressor/PS pump

Still clunk

At this point all I can think of is that
  1. it has dropped a valve
  2. cam belt has slipped more than few notches
  3. or ?


Is there anything else I can check – or do I just bite the bullet and pull the head?

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Old Oct 10, 2018 | 11:03 AM
  #2  
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If it dropped a valve you should be able to see it with the valve cover off. I would think it would turn more than 1/4 turn with a dropped valve.
If it stopped turning over when you replaced the slave cylinder, I'd check that. Pull the slave cylinder, see if it clunks.
Can you borrow or rent a borescope? That would be easier than pulling the head.
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Old Oct 10, 2018 | 07:42 PM
  #3  
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blein
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good point - will look at slave - meds are making me stupid(er)
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Old Oct 10, 2018 | 10:15 PM
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951and944S
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You'd need a bore scope with the little mirror end attachment or else all you will see is top of the piston.

T
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Old Oct 10, 2018 | 11:37 PM
  #5  
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blein
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don't have a mirror thingy but will check to see what piston is coming up with values down
things to do when it stops raining (car is in driveway)
1. check pistons positioning
2. look in bell housing to see if anything is loose
3. check if slave is in correctly
4. have helper turn engine back and forth while listening (with screw driver in ear) to see where noise is coming from
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Old Oct 11, 2018 | 08:15 AM
  #6  
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951and944S
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From: New Orleans/Baton Rouge
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There's not much piston to head clearance on the 11:1, may be possible that in your previous attempts from car sitting so long, a piece of carbon fell from the combustion chamber or valve face.

b), you really have the transmission in gear and the clutch rubber center has broken and the "clunk" you are hearing are the metal drive dogs that engage when the disc fails.

Was the car (you said it is in driveway) parked on an incline with the transmission/clutch holding it from rolling for an extended time...?

T
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