Hi,

 

My '13 Mk3 Octavia VRS 2.0 TSI recently had new timing chain and cam fitted 3 weeks ago. On return from Xmas trip to Ireland, I had loss of power and misfiring with fuel smell and then wouldn't start.

 

Recovered to a different garage who are suggesting (without yet looking at it) that the initial repair could be the cause. Any thoughts?

 

TIA

5 minutes ago, dcalder said:

new timing chain and cam

Why? I mean it's possible, but a cam chain is lifed over 100_000 miles IIRC.

The timing chain had stretched and jumped and damaged the cam (worsening rattle). I have the damaged cam too.

 

One thing they said was that they tried three different cams which seemed odd...

 

I'm not technical at all FYI

Who told you that the chain had stretched in 3 weeks from new?

 

If it's the garage who now have your car get it back ASAP and treat everything else with suspicion.

 

I would say there has been a failure of the tensioner from what little you had said prior to their strip down.

34 minutes ago, dcalder said:

The timing chain had stretched and jumped and damaged the cam (worsening rattle).

I'd want to know how they inspected for bent valves after finding that out.

Timing chain was >100k and was initial repair. The rattling that became progressively worse was the cam. Engine been fine for last three weeks (maybe 1000 miles) until the issue a couple days ago.

Did the engine get rotated backwards even half a turn not long before the chain jump?

 

It could have been a stalled engine on a hill, pushing the car backwards in gear etc or equally the garage rotating it backwards when setting the valve timing although I would have expected the failure even sooner.