High revving

[joesouthgate]

hi guys,
Sorry if this has been covered before but just drove my k10 down the road home and as i pulled up it just started revving really high, i checked the vacuum hoses and couldn't see much?
happened once before with old engine but sorted that by slackening throttle cable a bit.
Wheni drove it back throught the village it seemed to get worse when i stopped, turned it off and it over ran for about 10 seconds?

Anyone got any ideas?
Cheers
Joe

 

[frank]

joe

your throttle cable might be sticking
if its "running on", it must be getting that hot that its igniting the fuel without a spark

 

[joesouthgate]

it pulled throttle cable off the bracket when it was running high and it didnt make a difference. grr when i had top of air pan off aswell it puffed a mist of i guess fuel out of it as it ran on

 

[frank]

joe

i think your carb has an antideisel valve ( to stop runon )
also theres a fast idle mechanism on the semi-autochoke ?

 

[joesouthgate]

not sure to be honest, engine is off arnold, and he said its got a low milage carb less than 40k so i would hope it wasnt something like that?

 

[Arnold]

Yeah it's definitely got about 40K on the carb. Was all in perfect working order when it reached Kristians. He drove it half the country without any problems!

 

[frank]

joe

i think the antideisel valve has 1 wire and the idle speed valve has 2
i would check them for condition/signal etc

 

[joesouthgate]

seems to be okay, guess something was sticking a bit casue i got a bi annoyed and really ragged it down the road, then it was fine when i pulled up lol