Throttle taking an age to sit back to idle

[jamesandtheopenroad]

Have taken apart and cleaned my carb (was running lumpy - blocked jet I think), and having put it back on, adjusted the timing and set the idle at 900 and co2 at 2%, it's running very nicely, thank you.

However, the throttle is taking an age to come back to idle, and so between gear changes or coming to a junction, keeps the revs up until it idles again - I reckon about 5-8 seconds.

What should I be looking at to fix this please?

Thanks.

[AdrianC]

I'm presuming this is running on petrol, rather than gas?

Is the carb's butterfly physically closing quickly? If not, is there some slack in the throttle cable when it's fully closed?

[faggie]

what engine are we talking about here , check that the throttle return springs are correctly fitted or not missing

[R0B]

A visit to specsavers may help.

1990 VW T25 Transporter
1.9 DG 78ps

what engine are we talking about here

[jamesandtheopenroad]

Evening.

Apologies for delayed reply, been at work.

Yeah, setting it up on petrol , anything lpg related and it goes straight into the garage.

Will double check the choke butterfly tomorrow. There is a spring that someone has attached between the accelerator cable bolt and the oil breather pipe so I'm guessing that the throttle return spring is a little weak.

I tightened up all bolts in case any came loose during the clean. If I've over tightened the nuts at either end of the throttle rod, would that make it stick?

[faggie]

did not read the full post my fault but thers no need to be sarcastic like the avatar

[R0B]

Sarcasm? It was a joke.

[faggie]

no worries

[Ian Hulley]

There is a spring that someone has attached between the accelerator cable bolt and the oil breather pipe so I'm guessing that the throttle return spring is a little weak.?

Our's has a spring from the throttle which is cable-tied to the dizzy .... it behaves exactly like yours when that has come off or the cable tie breaks.

Ian

[jamesandtheopenroad]

There is a spring that someone has attached between the accelerator cable bolt and the oil breather pipe so I'm guessing that the throttle return spring is a little weak.?

Our's has a spring from the throttle which is cable-tied to the dizzy .... it behaves exactly like yours when that has come off or the cable tie breaks.

Ian

Thanks Ian. Will have a look at that. Perhaps time for another spring.