L14MNP
21-05-07, 10:55 PM
This has me stumped, my mates car [mk1 xr2] has twin 40 webbers and they are being a cnut!
We replaced the wiring loom in the car and now it doesn't want to start!
Ran fine beforehand, now seems like the carbs may need rejetting /cleaning?
It was firing and dying, only staying alive if you kept starter turning, but now, after some easy start and carb cleaner it doesnt attempt to start at all.
The plugs seem to be fine, they aren't soaked in fuel
The fuel pump is working and fuel is coming through to the rail
All 4 plugs are sparking
The alternator is working fine
Battery is fine [been running it with jump leads too]
Today we unscrewed the two 'caps' on the bodies and unscrewed the 4 jets? that's in each and cleaned them up although they seemed fine too!
What we have noticed is that when it tries to turn over the starter seems fine, but when you pump the acc. pedal it turns ever faster [confused!]
Any ideas? Has us stumped now! We get the feeling the carbs need to be took apart but have no clues how to do this, guess he needs the Haynes or equiv, carb manual
I'm right in thinking the carbs are entirely mechanical and don't require anything at all except no air leaks and fuel supply right?
Also RE fuel pump, although it pumps fine, it makes a click click click noise instead of the usual motor wirrr that i'm used to, on it's last legs or normal for some types? I don't know what type it is yet as I haven't looked unerneath when I've had the chance!
Cheers :D
We replaced the wiring loom in the car and now it doesn't want to start!
Ran fine beforehand, now seems like the carbs may need rejetting /cleaning?
It was firing and dying, only staying alive if you kept starter turning, but now, after some easy start and carb cleaner it doesnt attempt to start at all.
The plugs seem to be fine, they aren't soaked in fuel
The fuel pump is working and fuel is coming through to the rail
All 4 plugs are sparking
The alternator is working fine
Battery is fine [been running it with jump leads too]
Today we unscrewed the two 'caps' on the bodies and unscrewed the 4 jets? that's in each and cleaned them up although they seemed fine too!
What we have noticed is that when it tries to turn over the starter seems fine, but when you pump the acc. pedal it turns ever faster [confused!]
Any ideas? Has us stumped now! We get the feeling the carbs need to be took apart but have no clues how to do this, guess he needs the Haynes or equiv, carb manual
I'm right in thinking the carbs are entirely mechanical and don't require anything at all except no air leaks and fuel supply right?
Also RE fuel pump, although it pumps fine, it makes a click click click noise instead of the usual motor wirrr that i'm used to, on it's last legs or normal for some types? I don't know what type it is yet as I haven't looked unerneath when I've had the chance!
Cheers :D