Vehicle & Technical > Defender

Timing

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nzrover:
"In the middle of a hard bit" sounds right.  Given that the timing is at #1 cylinder TDC between compression & firing, #4's valves should be rocking (ie exhaust closing & inlet opening) so the cam will be hard to turn.  Your safest way to sort this out is to line the crank up at TDC, remove the belt, then turn it 1/4 of a turn clockwise to make sure the pistons are all away from TDC,   then line 8the pump up (only ever turn it clockwise or you'll break it).  Now turn the camshaft until it is lined up.  Check where the cam lobes are - #4 should be rocking as above, and #1 should both be closed - If this isn't the case you have a problem and are using the wrong marks.  When you're happy with the position of both the pump and cam, turn the crank back 1/8 turn to line up with it's marks, fit the belt, tension it up and wind it over 2 turns to check.  Good luck - if you have any doubts as to how to do this -  pay for expert help before it gets really expensive.

Guy90:
Thanks for that. Tried it and all was going well until I refitted the belt and re tensioned it. After about a quarter turn on the crakshaft, it locked solid again.

Off to the garage I think as there seems to be no explanation for the lock up.

Guy

diesel_boy:
hay   guy my offer is still ther if you want some help to get you engine running  any time you  want ill come and have a look .... sam

kevinf:
just quick suggestion before going to the garage,check the crankshaft gear and woodruff key for wear as this could allow the crank shaft gear to move round the crankshaft especially as the damper pulley has been off,which would normally hold the gear in place hence the problem now being noticed
good luck kevin

Guy90:
Thanks. Checked it and it's fine. Problem seems to be with a piston hitting a valve at the wrong place. Cam shaft and crankshaft turn fine until you put the belt on and tension it up then it locks solid within 1/4 turn.

Spoke to remanufactures and they said must go to a garage or warranty will be invalid.
In any case I can't be arsed to fix it anymore.

Guy

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