Timing my 'open engine'

Wowa · May 7, 2019

I just received my 11L 200tdi engine back from a complete rebuild but head left off for me to complete the re-assembly.
Pistons 1 and 4 are flush with the face of the block but the woodruff key is just short of 12 o'clock/the arrow on the face plate. The camshaft pulley is dead on the arrow. The injection pump is not yet mounted.
So, for timing, are pistons at TDC now with the key slightly off or do I ignore the position of the piston and still align the key to the arrow as per the manual?
Thanks, James

Flossie · May 7, 2019

Ignore the pistons, set crank position with the flywheel pin.

Wowa · May 7, 2019

Cheers Flossie! First engine build- don't know if I'll be able to turn the ignition when the time comes!! (Great fun though).

My Old Landy · May 7, 2019

Wowa said:
Cheers Flossie! First engine build- don't know if I'll be able to turn the ignition when the time comes!! (Great fun though).

Remember to turn it by hand twice after the belt is on and tensioned correctly

Wowa · May 7, 2019

Thanks MOL! Hadn't seen the rotate by hand part and the mention of the 2:1 rotation ratio didn't seem clear to me until your tip.

lynall · May 9, 2019

You can set it by the piston, but its not as simple as the pin

payydg · May 12, 2019

Wowa said:
I just received my 11L 200tdi engine back from a complete rebuild but head left off for me to complete the re-assembly.
Pistons 1 and 4 are flush with the face of the block but the woodruff key is just short of 12 o'clock/the arrow on the face plate. The camshaft pulley is dead on the arrow. The injection pump is not yet mounted.
So, for timing, are pistons at TDC now with the key slightly off or do I ignore the position of the piston and still align the key to the arrow as per the manual?
Thanks, JamesView attachment 177376 View attachment 177377 View attachment 177378

As said just put the head back on and set it the usual way. When putting the belt over the cam pulley helps to have it wound on a tiny bit (less that half a tooth) clockwise past the mark to then turn it back anti-clockwise to take up the slack in the belt between crank and cam.

I’ve just finished doing the same as you and turned the key for the first time a few weeks ago and it’s a great feeling when it starts up.

Don’t forget to turn it over just on the battery (unplug FIP stop solenoid) for a good 10-20 seconds to get the oil pressure up and flowing before firing up.

jamesmartin · May 12, 2019

Wowa said:
I just received my 11L 200tdi engine back from a complete rebuild but head left off for me to complete the re-assembly.
Pistons 1 and 4 are flush with the face of the block but the woodruff key is just short of 12 o'clock/the arrow on the face plate. The camshaft pulley is dead on the arrow. The injection pump is not yet mounted.
So, for timing, are pistons at TDC now with the key slightly off or do I ignore the position of the piston and still align the key to the arrow as per the manual?
Thanks, JamesView attachment 177376 View attachment 177377 View attachment 177378

pistons should be slightly proud of block face as will be when key is at 12

jamesmartin · May 12, 2019

Flossie said:
Ignore the pistons, set crank position with the flywheel pin.

you cant ignore pistons a mark can be wrong pistons cant

Timing my 'open engine'

Wowa

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Flossie

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Wowa

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My Old Landy

Keep breathin'

Wowa

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lynall

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payydg

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jamesmartin

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jamesmartin

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