Thread: M62 TU timing chains and Vanos rebuild

Originally Posted by NUTTTR

Any noises that made you look for it? Seems like a lot of guide in there!

Yes, loud clattering one morning. Not gradual, sudden. Did not go away after a few seconds. L322 engine noise 2005 4.4 Vogue - 30 August 2020 - YouTube

Originally Posted by glenhendry

My turn to do this job on my 2005 4.4 M62.

Attachment 164333

Took sump off, found plastic from chain guide. Will need to chain guide replacement. Anyone know where I can hire cam lock tools in Brisbane?

Also can I replace the timing chain guides without disrupting the timing?

How do I measure chain to see if it's stretched and needing replacement?

Oh that looks nasty. Definitely time to change your guides and I don't think I'd be driving the car anywhere until you do. How many KMs has your engine got on it? The job is not that technically difficult just time consuming. If you are going to take on the task I/we will be able to help you through it.


Anyone know where I can hire cam lock tools in Brisbane? You can borrow my timing kit if you would like for a case of beers and postage. I don't think I'll need them anytime soon.

Also can I replace the timing chain guides without disrupting the timing? Short answer no. The timing kit locks the cams and the crank but you have to remove the cam angle sensor plates so you need the kit to re-time them.

How do I measure chain to see if it's stretched and needing replacement? I'd say if your guides have gone the chains may have a bit of damage rubbing on the bare alloy so I'd just change them as you get them as part of the kit. Also no real way for the DIY'er to check for chain stretch to any real accuracy.

Originally Posted by NUTTTR

What are the key steps to cut it down?

In future I'll need to do guides, might leave the vanos alone as it's quiet as... But who knows what it'll be like once I get around to the job!

The key step to cutting down on the time it takes to do the job is having done it before. Once you work out which way to hold your tongue as you squeeze the rocker covers out and back in without bumping off the gasket between the pipes and wires and the like.

You don't need to do the Vanos seals, but you have to remove them off end of the cams if you are going to replace the small cam chains.

Originally Posted by glenhendry

Yes, loud clattering one morning. Not gradual, sudden. Did not go away after a few seconds. L322 engine noise 2005 4.4 Vogue - 30 August 2020 - YouTube

Wow, lucky catch! I'm amazed it just disintegrated suddenly!

How many KM?

Originally Posted by NUTTTR

Wow, lucky catch! I'm amazed it just disintegrated suddenly!

How many KM?

235kkms

Lucky catch then! I've got 210k and considering doing it as preventative maintenance at some point... Engine is currently silent...

I have completed the tear-down, everything looks quite good except lower guide and passenger side guide are both missing plastic. Ordering parts now. Am a little nervous about all the cam timing but an awesome fellow Aulro-er has agreed to loan me cam lock tool. Very happy. Will share photos later.

Nice. You work fast!

I assume you look on the engine bay and, basically, remove everything you can see? Most of the guides cover BMW sedans that have a lot less space in the engine bay! How many hours so far?