912/6 Project - here we go again!

[KS]

There is a setting that does "decel cut" that can give an aggressive stumble on power- off . Might be worth finding this and at 1st, turn it off, if that cures it, re-adjust the parameters at which it cuts in/ out.
Whatever, drive it whilst the weather is mild ! You've got some catching up to do to make up for missed miles

Ah, that makes sense. Might also account for the stumbling in on-off throttle situations in heavy traffic. I'll take a look.

And as for your other suggestion,m you're right!

Thanks for all your help and support!!!

[KS]

[KS]

Well, after having what I believed to be cam chain tensioner failure, and then replacing the tensioners with pressure-fed tensioners, and having them 'fail', we've discovered the mystery noise was nothing to do with the tensioners – it's a broken valve spring (inlet on #3)!!!

Don't ya just love cars?

[Darren65]

[911hillclimber]

What a pain that is as a lot has to come off the engine.
Good luck with it.

[KS]

What a pain that is as a lot has to come off the engine.
Good luck with it.

Not too bad - compressed air into cylinder. Can be done with engine in the car if needs be, but will drop engine to give better access, though. Shame Bob's not around to comment.

[911hillclimber]

Indeed, and have seen the compressed air trick done but not on a 911.

[Bootsy]

Hope it all goes well - not needed as you were just finding your mojo at CLM

[sladey]

Bummer - but on the plus side at least you've found the problem - it'll be great when it's fixed