Page 1 of 1
Whats wrong with my 1.3 carby?
Posted: Sat Dec 10, 2005 5:31 pm
by Meteor
After a trip to stockton beach on about the hottest day of the year the other day the sierra has been has been idling almost 1000rpm higher than usual (up to 2700 at the lights
). The temp has been sitting around 2 needle widths higher as well. Raditator is near new, idle is not related to having lights on etc. so nothing in the search....
Posted: Sat Dec 10, 2005 6:07 pm
by Spike_Sierra
sand in the carbi, take it off and blow everything out.
Posted: Sat Dec 10, 2005 11:06 pm
by Meteor
no sand, just found the screw to adjust the idle has half it's thread missing... bugger
Posted: Sun Dec 11, 2005 12:14 am
by Crawford
my idle starts normal.. but after like a 2minute drive it sits really high!!
could that be the idle screw to?
Posted: Sun Dec 11, 2005 9:12 am
by christover1
Crawford wrote:my idle starts normal.. but after like a 2minute drive it sits really high!!
could that be the idle screw to?
sounds like auto choke may be sticking on....often caused by too low water level, or blockage in pipes that feed the auto choke.
running hotter suggests a water flow issue, which can affect auto choke.
christover
Posted: Sun Dec 11, 2005 11:02 am
by Crawford
well my car uses like no water not sure if thats a good or bad thing...
did a 800km drive once and the water barely went down at all
so could it be a blockage? and how could i find out
cheers
Posted: Sun Dec 11, 2005 11:24 am
by christover1
The pipes running in and out of the auto choke should be warm to hot when car has reached running temp.
If one pipe is cold, it is not flowing.
Pull one end of and blow the crud out usually works.
You can also see the mechanism slowly move up as car warms.
worth a look into.
christover
Re: Whats wrong with my 1.3 carby?
Posted: Sun Dec 11, 2005 11:29 am
by christover1
Meteor wrote:After a trip to stockton beach on about the hottest day of the year the other day the sierra has been has been idling almost 1000rpm higher than usual (up to 2700 at the lights
). The temp has been sitting around 2 needle widths higher as well. Raditator is near new, idle is not related to having lights on etc. so nothing in the search....
check your choke, too, water can get air locks or crud in them, causing ckhoke to stay on, which in turn keeps the idle high, cos it thinks it cold
christover
Posted: Sun Dec 11, 2005 6:41 pm
by OldGold
full of the nuggets of wisdom christover, as always
Posted: Sun Dec 11, 2005 7:25 pm
by christover1
Posted: Mon Dec 12, 2005 3:11 pm
by Meteor
Officially the wax plug that moves the auto choke has stopped working, will know if it's a water flow issue tomorrow. Couldn't go on driving it with the idle getting up around 3,500, brakes would be f$cked in a week.... Having the thing start up like an old radial engine did sound kinda cool though.
