Flywheel locking hole location 1.6hdi 8 valve

[petey11]

Hi all
I'm trying to locate the flywheel locking hole on my C5 1.6hdi 8 valve 2011 model. I have seen several different locations mentioned. One say by the starter motor, problem being I cannot even see the starter and cannot raise the car enough to get right underneath it. Another diagram I saw showed opposite the sump at the bottom just above the Flexi part of the exhaust as it runs under the engine. I can access this quite easily as I can reach that area with ease.
Any advice would be greatly appreciated

[mickthemaverick]

I have moved this thread here as it is not a 'super sticky subject'.

If you watch this video at around 28 minutes he will show you an alternative to using the flywheel locking pin.

[RichardW]

There are 2 locking points, with different functions:

The one in your picture in the back plate above the exhaust - this is NOT a timing pin, it is only for loosening / tightening the crank pulley bolt. Takes about a 10mm pin, just about enough room to fiddle it in over the exhaust.

The actual timing point is in the crank timing ring, behind the crank pulley. Takes a smaller (6mm?) pin and the timing point is at 12 o'clock..

You cannot fit both at once! Get the car jacked up and under tray off and then turn the engine over forwards with a ratchet on the crank pulley till the flywheel pin drops in - it's a bit awkward lying on your back on your own! Now slacken the crank pulley and remove the bolt and pulley. Refit the bolt and remove the flywheel pin. Remove the covers and engine mount and then turn the engine forward to the timing position and pin the crank, cam and pump. Once built back up, turn engine forwards again to reinsert the flywheel pin to allow you to remove the crank bolt and refit the pulley and (new) bolt.

[petey11]

Hi Richard
Thanks for that, that's what I was looking for. I posted a while ago about a possible cambelt failure and have only just got around to have a look at it. I've a timing pin kit on order. I stripped splash pan, removed wheel etc. I tried locking the brake disc and in gear but for the life of me could not undo the crank pulley bolt, then spent half an hour researching where the flywheel lock was and trying to locate. I only come across the diagram later that evening. My plan is to get the timing belt cover off and see what is going on with the belt. I can see a small part of the belt through the crank timing pulley and it looks like it has the teeth on still. When I crank with ignition it goes into , I believe, a fail safe shut down after about a second because the crank/cam sensors are out of sync.

Ill have another look next weekend when I have the next free time and hopefully be able to undo the pulley bolt now I know where the flywheel lock is.

[shtu]

Undoing the crank bolt is easy with an impact wrench, and arguably less risky than the traditional Big Bar.

I think I mentioned on the other thread that the cam lobes are prone to turning on the camshaft in the event of a belt failure. Depending on what you find, a set like this might be the cheap way out,

https://www.lymmengineparts.co.uk/camsh ... 8v-dv4-dv6