Fuel starvation?

gr_diver · 03-10-2005

My 1.6S Ascona (1900) has the Solex 32/32DIDTA.
When I drive uphill, and going a bit hard on the accelerator, if I come to a traffic light and stop my idle drops to about 400rpm. If I rev it a couple of times it goes back to normal. Should I suspect fuel starvation, because of incorrect float level in the carb?

baz · 03-10-2005

i think this could be to do with the problems you had the other week with your carb
did you get the carb set up right then its gone off again or is this the same problem?

to try and get it fixed
first for the revs to drop down that far the idle stop must be set too low and then you must have the idle set with the air idle jet
have a good re-read of the heynes you have and set the carb so the idle is right this will hopefully sort it

gr_diver · 03-11-2005

My carb is set correctly, I set a slightly higher idle-speed (900rpm) I get proper intake vacuum at idle, and have no emmissions. This happens ONLY after hard acceleration going uphill.

baz · 03-11-2005

in that case all you can do is pull the top of the carb and and look to see if the float is sitting level ,look tosee if the float valve is free to move, look to see if the plate between the pivot and the float is straight and look for any thing that should not be in there like dirt

Wolf Spyder · 03-11-2005

Just another thought, might you have some trash in the fuel tank that is shifting and clogginng the line?

gr_diver · 03-11-2005

Thank you guys, BOTH!
Hey baz, thanks for responding to my other thread as well (oil consumption)!
I will try to figure things out during the weekend. If anything noticeable comes into my attention I will post it. Let's hope that it's just a semi-sticking valve int the float chamber which needs a bit of cleaning...
Have a nice weekend!

03-10-2005	#1 (permalink)
gr_diver Senior Contributor Join Date: Feb 2005 Location: Greece Posts: 540	Unanswered: Fuel starvation? My 1.6S Ascona (1900) has the Solex 32/32DIDTA. When I drive uphill, and going a bit hard on the accelerator, if I come to a traffic light and stop my idle drops to about 400rpm. If I rev it a couple of times it goes back to normal. Should I suspect fuel starvation, because of incorrect float level in the carb? __________________ '78 Opel Ascona B 1.6SR ______________R.I.P.____________

03-10-2005	#2 (permalink)
baz opel free after 26 years Join Date: Jun 2002 Location: sunderland england Posts: 4,941 Real Name: barry williams Provided Answers: 4	i think this could be to do with the problems you had the other week with your carb did you get the carb set up right then its gone off again or is this the same problem? to try and get it fixed first for the revs to drop down that far the idle stop must be set too low and then you must have the idle set with the air idle jet have a good re-read of the heynes you have and set the carb so the idle is right this will hopefully sort it __________________ Copyright © 2003-2009 barry williams All Rights Reserved save praying to God for sunday today we pray to Nike and run like hell

03-11-2005	#3 (permalink)
gr_diver Senior Contributor Join Date: Feb 2005 Location: Greece Posts: 540	My carb is set correctly, I set a slightly higher idle-speed (900rpm) I get proper intake vacuum at idle, and have no emmissions. This happens ONLY after hard acceleration going uphill. __________________ '78 Opel Ascona B 1.6SR ______________R.I.P.____________

03-11-2005	#4 (permalink)
baz opel free after 26 years Join Date: Jun 2002 Location: sunderland england Posts: 4,941 Real Name: barry williams Provided Answers: 4	in that case all you can do is pull the top of the carb and and look to see if the float is sitting level ,look tosee if the float valve is free to move, look to see if the plate between the pivot and the float is straight and look for any thing that should not be in there like dirt __________________ Copyright © 2003-2009 barry williams All Rights Reserved save praying to God for sunday today we pray to Nike and run like hell

03-11-2005	#6 (permalink)
gr_diver Senior Contributor Join Date: Feb 2005 Location: Greece Posts: 540	Thank you guys, BOTH! Hey baz, thanks for responding to my other thread as well (oil consumption)! I will try to figure things out during the weekend. If anything noticeable comes into my attention I will post it. Let's hope that it's just a semi-sticking valve int the float chamber which needs a bit of cleaning... Have a nice weekend! __________________ '78 Opel Ascona B 1.6SR ______________R.I.P.____________

03-11-2005	#5 (permalink)
Wolf Spyder Member Join Date: May 2004 Location: Mississippi Posts: 412	Just another thought, might you have some trash in the fuel tank that is shifting and clogginng the line?

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