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Throttle taking an age to sit back to idle
Posted: 15 Mar 2013, 15:26
by 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.
Re: Throttle taking an age to sit back to idle
Posted: 15 Mar 2013, 15:57
by 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?
Re: Throttle taking an age to sit back to idle
Posted: 15 Mar 2013, 21:07
by faggie
what engine are we talking about here , check that the throttle return springs are correctly fitted or not missing
Re: Throttle taking an age to sit back to idle
Posted: 15 Mar 2013, 21:25
by R0B
A visit to specsavers may help.
1990 VW T25 Transporter
1.9 DG 78ps
what engine are we talking about here
Re: Throttle taking an age to sit back to idle
Posted: 15 Mar 2013, 22:42
by 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?
Re: Throttle taking an age to sit back to idle
Posted: 16 Mar 2013, 20:08
by faggie
did not read the full post my fault but thers no need to be sarcastic like the avatar
Re: Throttle taking an age to sit back to idle
Posted: 17 Mar 2013, 09:18
by R0B
Sarcasm? It was a joke.
Re: Throttle taking an age to sit back to idle
Posted: 17 Mar 2013, 14:04
by faggie
no worries
Re: Throttle taking an age to sit back to idle
Posted: 18 Mar 2013, 08:51
by Ian Hulley
jamesandtheopenroad wrote: 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
Re: Throttle taking an age to sit back to idle
Posted: 18 Mar 2013, 10:41
by jamesandtheopenroad
Ian Hulley wrote:jamesandtheopenroad wrote: 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.