340 carburettor problems

Cypher007 · Jan 15th, 2003, 08:58

i have a 340GL which i recently bought. the carb was in a bad way so i stripped it and fitted a repair kit. now the choke works properly and the mixture leans out when crusing. the only problem i cant seem to fix is a strange one, basicaly sometimes when i pull up to a junction the car ticks over at 900rpm, which i set it to, at other times it can be anything between 400-600?. if i blip the throttle a few times i can usualy get the thing to go back to 900, or sometimes it will settle at 1200, its almost like the throttle plate is sticking. any ideas on where to look?

srtames · Jan 15th, 2003, 13:01

I also have had that problem but it was simply the carpet fouling the throtle pedal arm!
I suppose it could also be the throttle cable sticking slightly as the throtle action is very sensitive to this.

Steve

Cypher007 · Jan 15th, 2003, 17:11

hmm tried that, but found theres plenty of slack in the cable.

Jan 15th, 2003, 18:26

Hi Guys,

I have a similar problem with my carb. I recently had the carb professionaly overhauled and tuned using the weber kit. Ever since when stopping after a motorway run, the idle sits at about 1500rpm then gradualy drops back to normal in about a minute. I wonder if there is a fault with a component supplied in the kit ? I will investigate further and keep you posted.

Crunchie.

Jan 15th, 2003, 08:58	#1
Cypher007 Master Member Last Online: Jan 8th, 2024 14:20 Join Date: Dec 2001 Location: Lincolnshire	340 carburettor problems i have a 340GL which i recently bought. the carb was in a bad way so i stripped it and fitted a repair kit. now the choke works properly and the mixture leans out when crusing. the only problem i cant seem to fix is a strange one, basicaly sometimes when i pull up to a junction the car ticks over at 900rpm, which i set it to, at other times it can be anything between 400-600?. if i blip the throttle a few times i can usualy get the thing to go back to 900, or sometimes it will settle at 1200, its almost like the throttle plate is sticking. any ideas on where to look? __________________ Volvo 854 T5R Yellow 1994 Aquamist 2D (Don & Aquamist) BMC panel filter (Don) Ferrita Cat Back (Don) Denso Iridium Spark Plugs (Hong Kong) PowerFlex Top Engine Mount (?) PowerFlex Wishbone Bushes (Elk Parts) 302mm front brake upgrade Goodridge front hoses (rears to be fitted later) 600W Inverter (ebay) History: 1991 Volvo 340DL (1982) 1994 Volvo 360GLE (1989) 1999 Volvo 360GLT (1988) 2002 Volvo 850GLT (1991) 2004 Volvo 850T5R (1994)

Jan 15th, 2003, 13:01	#2
srtames Member Last Online: Jun 16th, 2020 17:21 Join Date: Jan 1970 Location: reading	RE: 340 carburettor problems I also have had that problem but it was simply the carpet fouling the throtle pedal arm! I suppose it could also be the throttle cable sticking slightly as the throtle action is very sensitive to this. Steve

Jan 15th, 2003, 17:11	#3
Cypher007 Master Member Last Online: Jan 8th, 2024 14:20 Join Date: Dec 2001 Location: Lincolnshire	RE: 340 carburettor problems hmm tried that, but found theres plenty of slack in the cable. __________________ Volvo 854 T5R Yellow 1994 Aquamist 2D (Don & Aquamist) BMC panel filter (Don) Ferrita Cat Back (Don) Denso Iridium Spark Plugs (Hong Kong) PowerFlex Top Engine Mount (?) PowerFlex Wishbone Bushes (Elk Parts) 302mm front brake upgrade Goodridge front hoses (rears to be fitted later) 600W Inverter (ebay) History: 1991 Volvo 340DL (1982) 1994 Volvo 360GLE (1989) 1999 Volvo 360GLT (1988) 2002 Volvo 850GLT (1991) 2004 Volvo 850T5R (1994)

Jan 15th, 2003, 18:26	#4
crunchie Guest Location:	RE: 340 carburettor problems Hi Guys, I have a similar problem with my carb. I recently had the carb professionaly overhauled and tuned using the weber kit. Ever since when stopping after a motorway run, the idle sits at about 1500rpm then gradualy drops back to normal in about a minute. I wonder if there is a fault with a component supplied in the kit ? I will investigate further and keep you posted. Crunchie.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)