Motor won't turn over

[Ultramaroon]

put a box end wrench on the harmonic damper screw and see if you can turn the engine by hand.

Turn it slowly and only clockwise (from the perspective of looking at the front of the engine)

[Tcoat]

Originally Posted by Ultramaroon

put a box end wrench on the harmonic damper screw and see if you can turn the engine by hand.

Turn it slowly and only clockwise (from the perspective of looking at the front of the engine)

He seems to have disappeared!

You know I never thought of that. May be pretty hard to turn with the plugs in it though since the compression is so high.

[Ultramaroon]

Originally Posted by Tcoat

He seems to have disappeared!

You know I never thought of that. May be pretty hard to turn with the plugs in it though since the compression is so high.

I thought about going back to mention that. The compression is amazing but you can get through it just turning slowly and letting it bleed down.

[Tcoat]

Originally Posted by Ultramaroon

I thought about going back to mention that. The compression is amazing but you can get through it just turning slowly and letting it bleed down.

Would have been a handy trick with my old Ghia or Corvair. I never figured out an easy way to move those. About 35 years too late though.

[Ultramaroon]

Originally Posted by Tcoat

Would have been a handy trick with my old Ghia or Corvair. I never figured out an easy way to move those. About 35 years too late though.

Never too late.

[Tcoat]

Originally Posted by Ultramaroon

Never too late.

HMMMM

[Ultramaroon]

Originally Posted by Tcoat

HMMMM

Do it! A colleague of mine is a Corvair guy. They're awesome.


shit, I fell for it. Tried to click on the pictures.

[Urmyson]

I put a socket on the crank pulley and I was able to turn it counter clockwise about maybe 2 turns and then it got tight. then I can go clockwise about the same before it gets really tight. I didn't want to put a lot of force into it because I don't know exactly what I'm doing though.

If the motor was locked up would it turn at all?

[humfrz]

Originally Posted by Urmyson

I put a socket on the crank pulley and I was able to turn it counter clockwise about maybe 2 turns and then it got tight. then I can go clockwise about the same before it gets really tight. I didn't want to put a lot of force into it because I don't know exactly what I'm doing though.

If the motor was locked up would it turn at all?

Well, if you turned it counterclockwise, you just loosened the bolt/nut. Then you turned it clockwise and tightened it back up. So, no real turning of the crank.


humfrz

[Urmyson]

It turned the crank, all the pulleys and belt moved at least. But I put very little force into it either way. I can put a breaker bar on it, but I'm afraid I'll just break something else.

[humfrz]

Originally Posted by Urmyson

I put a socket on the crank pulley and I was able to turn it counter clockwise about maybe 2 turns and then it got tight. then I can go clockwise about the same before it gets really tight. I didn't want to put a lot of force into it because I don't know exactly what I'm doing though.

If the motor was locked up would it turn at all?

As discussed above, I'm not so sure anyone except a big guy like @Ultramaroon could turn a crank using a box end wrench. Maybe yes, with a socket and breaker bar ....... if you could get one in there.

I just remember how difficult it was to crank the old engines, even with their low compression and using the leverage of a hand crank.


humfrz

[Ultramaroon]

Originally Posted by Ultramaroon

put a box end wrench on the harmonic damper screw and see if you can turn the engine by hand.

Turn it slowly and only clockwise (from the perspective of looking at the front of the engine)

Originally Posted by Urmyson

I put a socket on the crank pulley and I was able to turn it counter clockwise about maybe 2 turns and then it got tight. then I can go clockwise about the same before it gets really tight. I didn't want to put a lot of force into it because I don't know exactly what I'm doing though.

If the motor was locked up would it turn at all?

*sigh* Never turn an engine backwards unless you know exactly how it affects it.

It's ok if it gets hard to turn in a springy way. That's normal. Just go slowly and let the cylinder pressure bleed down. You're looking to feel for a hard mechanical bind. If you feel that then you've already found what has broken. Not going to break it more. Not by hand.

If you can get 2 full rotations of the crankshaft then you have made it through a full rotation of the camshafts. You can consider it ok to turn over with the starter.

[humfrz]

Originally Posted by Urmyson

It turned the crank, all the pulleys and belt moved at least. But I put very little force into it either way. I can put a breaker bar on it, but I'm afraid I'll just break something else.

Like mentioned above, crank it a ways clockwise till you feel resistance, then wait till the compression bleeds off, then turn it some more (still clockwise).

If you can get the crankshaft to make a full revolution, that would indicate that the engine is not completely locked up.

However, that doesn't mean you are completely out of the woods ...... you could still have a spun bearing that the starter motor can't overcome.

Where did @Ultramaroon and @Tcoat run off to ....... church ......??


humfrz

[Ultramaroon]

Originally Posted by humfrz

Where did @Ultramaroon and @Tcoat run off to ....... church ......??

Hey, I'm here.


...doing laundry.