Timing chain issues

[mayesj86]

The adjuster is a complex and expensive piece of kit, costing several hundreds from VW.

I was quoted £350 odd plus VAT from VW for the adjuster.  Thankfully I have had no issues with timing so far fingers crossed I don't muller it removing the bolt -  if the bolt is in ok nick probably be ok and if drilling will have to be very careful not to damage the unit 

[Pesky jones]

Also for metal swarf from drilling. Get some magnets?

[mayesj86]

Also for metal swarf from drilling. Get some magnets?

Thankfully I have ordered some already was worried about the swarf getting into the engine didn't think about the adjuster.

[mayesj86]

Well car is now in bits to find the cam bolt is absolutely trashed!!!! Was that bad i couldn't even get the tool to bite on any spline. Have a date with my drill now :-(

[pudding]

Oh man, that sucks.  We kind of guessed they fooked the bolt though, so it probably didn't come as a surprise.

Good luck with it fella, keep us posted.

[mayesj86]

After some hard fight and 4 cobalt drills later the bolt has been removed. It is one hell of a strong bolt. Massive downside is the VVT has damage from whatever the garage - huge gouges out of it assuming where the socket slipped when stripping the bolt  and there was a hell of alot of swarf kicking about with the drilling. Used magnets but I really don't want to risk it just in case.
Will call VW on Monday morning and get the VVT unit ordered in.
Does anyone know the part number off hand?

[doylebros]

After some hard fight and 4 cobalt drills later the bolt has been removed. It is one hell of a strong bolt. Massive downside is the VVT has damage from whatever the garage - huge gouges out of it assuming where the socket slipped when stripping the bolt  and there was a hell of alot of swarf kicking about with the drilling. Used magnets but I really don't want to risk it just in case.
Will call VW on Monday morning and get the VVT unit ordered in.
Does anyone know the part number off hand?

Item 6  http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/GOLF/year/2007/drive_standart/474/hg_ug/109/subcategory/109015/part_id/3708479/lang/e

Match to your engine code.

[Pesky jones]

That's a shame, sorry to hear. Probably for the best to fit a new adjuster considering. Hope it goes well from here

[mayesj86]

That's a shame, sorry to hear. Probably for the best to fit a new adjuster considering. Hope it goes well from here

Thanks buddy was a very long frustrating day on Saturday but its off now. For the sake of a few ££ and piece of mind Im just going to change the unit to be safe.

Pic of bolt after a long day at it 

[mayesj86]

All ready for new part to arrive and be fitted. For info the cam adjuster unit is £433 inc VAT from VW.

[neilw]

Well Done, I would of had a mental breakdown by now if this was me!

Out of interest and hopefully I'll never have to do it, how do you go about drilling the bolt out?

[mayesj86]

Well Done, I would of had a mental breakdown by now if this was me!

Out of interest and hopefully I'll never have to do it, how do you go about drilling the bolt out?

I was close to have a mental break down the bolt is made of some really hard material  . Thankfully Rich write up tells you to remove the battery tray which gives you just enough room to get a drill and the bit in.

I measured the head depth on the new bolt I have to avoid any excess drilling, centre dapped the bolt in the adjuster and started with a wee drill 5mm and worked my way up to a 13mm drill bit. The wee ones went through not too bad but the 12 and 13mm drills were a nightmare. I got most of the way through the head into the bolt shaft and the force holding the bolt in snapped the rest for me. It goes with one hell of a bang and jumps off the cam. Make sure you have your timing marks on the adjuster before starting 
I had the adjuster well covered and magnets all over the place to catch the swarf but it goes everywhere no matter how hard you try. Main reason im changing the adjuster don't want to risk putting it back together and find its now gubbed and transferred swarf into the bottom end.
I will say that there is a huge amount of heat generated doing this even with a cooling and lubricating fluid being drenched all over it. I'm glad I did it myself for piece of mind and my trust in "garages" has now totally disappeared.
I'm not going to lie it was an absolute pig of a job but very satisfying once it came off.

Part will be here tomorrow afternoon. Have taken Wednesday off work to finish the rebuild.

[Juliand]

 

Glad you're on your way to having it sorted. Have been reading this with much interest. A definite pat on the back. I couldn't do it. You've been so messed about, but great help on hand here - some really knowledgeable people. Big respect to you all

[Pesky jones]

Good stuff. If you have or have access to VCDS you can check the timing once you've put it back together. Engine measuring blocks, either block 90 or 91 will tell you your specified and actual exhaust cam adjustment. Your specified should be 28kw* and your actual wants to be + or - 1kw of the specified so between 27kw and 29kw. The number will fluctuate slightly, measure once warm and idling for five minutes.

*24kw specified adjustment for AXX engine code. +/-1kw for actual so 23 to 25kw

[mayesj86]

Glad you're on your way to having it sorted. Have been reading this with much interest. A definite pat on the back. I couldn't do it. You've been so messed about, but great help on hand here - some really knowledgeable people. Big respect to you all

Thanks very much buddy.
Broke the back of the job now. I really should have done it myself in the first place but hindsight is a wonderful thing  .
The guys and girls on here are brilliant and very helpful I would have been up a creek without a paddle without them all so big thanks to everyone who has advised and passed on their knowledge