trouble with newly fitted dellortos
Posted: Wed Jan 11, 2017 9:57 am
Hiya,
I've recently gotten a hold of matching 40E Dellortos, had the bodies professionally cleaned and rebuilt the carbs myself. The reason for the new carbs was that one carb on my car was a 40 with 3 progression holes, while the other a 40E with 4 progression holes. I didn't like this.
So having fitted the new rebuilt carbs (jets stolen from the previous carbs) I'm having trouble setting them up.
The idle is regularly rising and falling. In a repeating sequence. I've checked for vacuum leaks and all seems ok.
I have a vac gauge ready to test with but the idle not staying regular I can't even tell if a screw in is raising the idle or a screw out is raising the idle.
any ideas besides vacuum leak?
It is a repeating sequence of high idle to low and again and again.
cheers.
-Jim
I've recently gotten a hold of matching 40E Dellortos, had the bodies professionally cleaned and rebuilt the carbs myself. The reason for the new carbs was that one carb on my car was a 40 with 3 progression holes, while the other a 40E with 4 progression holes. I didn't like this.
So having fitted the new rebuilt carbs (jets stolen from the previous carbs) I'm having trouble setting them up.
The idle is regularly rising and falling. In a repeating sequence. I've checked for vacuum leaks and all seems ok.
I have a vac gauge ready to test with but the idle not staying regular I can't even tell if a screw in is raising the idle or a screw out is raising the idle.
any ideas besides vacuum leak?
It is a repeating sequence of high idle to low and again and again.
cheers.
-Jim