Just signed up here.

I have been driving 1Z TFSI BWA powered RS Octavia since 2018 with a quite rich experience.

Camshaft / full cylinder head operation included!

I´m hoping to get some advises from here for possible problems in the future.

I have a massive chunk of experience my self also so I´m glad to help too.

Hi, welcome.

Great that you are able to give and take, good luck.

Hello, was the head and cam work a modification - or result of wear/damage?

@AksA87 Welcome. Is that a Mk2 Octavia, how old & how many miles /km?

20 hours ago, Warrior193 said:

Hello, was the head and cam work a modification - or result of wear/damage?

Intake camshaft´s sprocket cracked loose and started to spin freely.

Intake valves were bent.

19 hours ago, Evolution13 said:

@AksA87 Welcome. Is that a Mk2 Octavia, how old & how many miles /km?

Hi,

2006 MK2 RS with 2.0 TFSI BWA engine and 244 000 km / 151 614 miles.

2 hours ago, AksA87 said:

Intake camshaft´s sprocket cracked loose and started to spin freely.

Intake valves were bent.

Thanks, was there any significant damage to the pistons?

42 minutes ago, Warrior193 said:

Thanks, was there any significant damage to the pistons?

No, just tiny marks.

Only intake valves were bent and that camshaft was broken.

Positive side on this was that there was not any counter force behind the valves because the camshaft was separated from the timing sprocket.

And this all happened when I was starting the engine so there was no high rpm´s.

As you can see from the pic, there´s tiny marks on the first and fourth pistons.

I think I´m going to open a dedicated topic for this and do a full report of that cylinder head operation.

Quite interesting that the cam sprocket appears to have failed at the drilled hole - does that hole correspond to any locking device?

1 hour ago, Warrior193 said:

Quite interesting that the cam sprocket appears to have failed at the drilled hole - does that hole correspond to any locking device?

I bought Freccia's manufactured cam shaft and there is no holes in the sprocket, and what comes to locking the cams, there is a tool that bolts on to the head over the cams that locks them in the right timing position, so it wakes some questions that is it meant to fail over time?