Engine hesitating

[Lowflyinggt2]

Hi guys,
I have a Scirocco mk2 1.8 gt2 2e2carb a problem started this week , car feels like it is hesitating on a constant throttle, say 40 mph 2500 rpm also has a tendency to stall needing a little more revs than usual, additionally if I stay in a low gear and rev it will not pass 4000rpm. It feels a little like carb icing but obviously not. It is idling fine choke is ok, I have sprayed carb cleaner in and checked some of the vacuum hoses. Any suggestions, maybe fuel pump? Blocked jets?


Thanks

[Nate]

Checked the timing?

[Lowflyinggt2]

Hi Nate,
No have not checked the timing why would that change overnight? I ll dig out the timing light though thanks.

[ianaudia4]

Is there crap in the in-line fuel filter?

[Nate]

Advance / retard not working right?

[DannyH]

Collapsing fuel line near the pump?

[ianaudia4]

Carb mount goosed? Easy to test, wiggle the airbox and listen for change in the noise.

[Lowflyinggt2]

Hi,
Thanks for the replies, no crap in fuel filter, will buy some new fuel line and try that. Think the carb mount is ok. Excuse my ignorance how does the advance retard work? will doing a timing check diagnose that?

Thanks

[Nate]

Stick the timing light on it and point at the crank pulley, having marked the notch to make it easier to see. Start engine with timing light on, and rev engine to make sure timing moves.

To set timing, throw away timing light, then keep advancing it until it pinks under load, then back off slightly.

[Lowflyinggt2]

Thanks I will try and give it a go one evening this week.

[Nate]

I would suggest not moving the timing until you know there isn't another fault. Check adv/retards working though

Have you got a vacuum gauge? Google how to use it for diagnostics

[Lowflyinggt2]

Yep I do have a vacuum gauge, how do I check the advance retard?

Thanks again

[Nate]

Stick the timing light on it and point at the crank pulley, having marked the notch to make it easier to see. Start engine with timing light on, and rev engine to make sure timing moves.

[monzajake]

Stick the timing light on it and point at the crank pulley, having marked the notch to make it easier to see. Start engine with timing light on, and rev engine to make sure timing moves.

To set timing, throw away timing light, then keep advancing it until it pinks under load, then back off slightly.

Hahahaha. Old skool way rocks !!!!

[Lowflyinggt2]

Thanks guys will check when I get hold of a timing light cannot find mine