740 GLE high idle and other problems

Oct 17th, 2005, 17:04

Dear Friends in this Forum,

First of all thanks for existing!!!

My problem that my '88 740 GLE with B230K engine needs some attention. The engine starts up fine and runs fine but as soon as I start driving the throttle keeps hanging and the car is idling at 2000 RPM. When I press and let go the accelerator fast it will go back to about 1100 RPM.

I have checked several things and I noticed that one of the levers on the carburettor is not going back to the original position. This also make a switch not go on or off (no idea).

Please have a look at www.gorpproductions.com/volvo/volvo.html to get an idea of what the problem is.

When this is fixed I will go to the next problem which is that the car loves to drive so much (320.000 km) that it does not want to stop. When I turn the ignition off it just keeps running like it's on one cilinder (dieseling) ....

Cheers,

Eddy

Mike_Brace · Oct 17th, 2005, 22:59

It will run on due to the fact that it is idling too fast, so the anti-dieseling valve is being bypassed. Try disconnecting the adjustable bar linking the throttle spindle to the carb. If that closes the gap adjust the bar down to suit.
Best of luck
Mike

Oct 18th, 2005, 08:18

The cable on the throttle spindle is slack and I can manually move the spindle but something is blocking the lever. It seems something within the carb is blocking it..... I cannot move it back to the original position, only by turning the throttle spindle fast and letting go fast.

http://www.gorpproductions.com/volvo/volvo.html

http://www.gorpproductions.com/volvo/volvo-Images/0.jpg
http://www.gorpproductions.com/volvo/volvo-Images/1.jpg
http://www.gorpproductions.com/volvo/volvo-Images/2.jpg
http://www.gorpproductions.com/volvo/volvo-Images/3.jpg
http://www.gorpproductions.com/volvo/volvo-Images/4.jpg

Eddy

Mike_Brace · Oct 18th, 2005, 09:07

The adjusting rod I'm refering to can be seen in the fourth picture below the cable to the right of cable. This might be holding spindle away from stop. Try disconnecting it (see last post) - let me know if that sorts it.
Mike

Oct 19th, 2005, 19:48

While checking what you told me I found out that the gasket between the carburettor and the manifold has been blown out!!!! I will replace this first and see what happens.

Thanks Mike

Eddy

Oct 17th, 2005, 17:04	#1
evangorp Guest Location:	740 GLE high idle and other problems Dear Friends in this Forum, First of all thanks for existing!!! My problem that my '88 740 GLE with B230K engine needs some attention. The engine starts up fine and runs fine but as soon as I start driving the throttle keeps hanging and the car is idling at 2000 RPM. When I press and let go the accelerator fast it will go back to about 1100 RPM. I have checked several things and I noticed that one of the levers on the carburettor is not going back to the original position. This also make a switch not go on or off (no idea). Please have a look at www.gorpproductions.com/volvo/volvo.html to get an idea of what the problem is. When this is fixed I will go to the next problem which is that the car loves to drive so much (320.000 km) that it does not want to stop. When I turn the ignition off it just keeps running like it's on one cilinder (dieseling) .... Cheers, Eddy

Oct 17th, 2005, 22:59	#2
Mike_Brace Former contributor Last Online: May 15th, 2024 09:52 Join Date: Dec 2004 Location: Rhosgoch, Anglesey	RE: 740 GLE high idle and other problems It will run on due to the fact that it is idling too fast, so the anti-dieseling valve is being bypassed. Try disconnecting the adjustable bar linking the throttle spindle to the carb. If that closes the gap adjust the bar down to suit. Best of luck Mike __________________ A Volvo is for life not just for Christmas!

Oct 18th, 2005, 08:18	#3
evangorp Guest Location:	RE: 740 GLE high idle and other problems The cable on the throttle spindle is slack and I can manually move the spindle but something is blocking the lever. It seems something within the carb is blocking it..... I cannot move it back to the original position, only by turning the throttle spindle fast and letting go fast. http://www.gorpproductions.com/volvo/volvo.html http://www.gorpproductions.com/volvo/volvo-Images/0.jpg http://www.gorpproductions.com/volvo/volvo-Images/1.jpg http://www.gorpproductions.com/volvo/volvo-Images/2.jpg http://www.gorpproductions.com/volvo/volvo-Images/3.jpg http://www.gorpproductions.com/volvo/volvo-Images/4.jpg Eddy

Oct 18th, 2005, 09:07	#4
Mike_Brace Former contributor Last Online: May 15th, 2024 09:52 Join Date: Dec 2004 Location: Rhosgoch, Anglesey	RE: 740 GLE high idle and other problems The adjusting rod I'm refering to can be seen in the fourth picture below the cable to the right of cable. This might be holding spindle away from stop. Try disconnecting it (see last post) - let me know if that sorts it. Mike __________________ A Volvo is for life not just for Christmas!

Oct 19th, 2005, 19:48	#5
evangorp Guest Location:	RE: 740 GLE high idle and other problems While checking what you told me I found out that the gasket between the carburettor and the manifold has been blown out!!!! I will replace this first and see what happens. Thanks Mike Eddy

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