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Feb 14, 2007 12:18:23 GMT
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...well most of the other daft questions. This really is rudamentary schoolboy stuff and I'm embaressed to ask but I'm having a mental block. Car looses all power when second choke kicks in, carb is clean, float levels spot on, had all the jets out and cleaned, blasted cleaner down the pipes. More than likely need to adjust mixture (scew has a tendancy to move on its own) but am I more likely to be getting too much air or flooding with too much fuel? (not smelling anything but have a blocked nose anyway) Go on, put me out of my misery then point and laugh!  |
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Feb 14, 2007 12:32:29 GMT
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Sounds like too much air, not fuel. Are the jets for the second choke blocked, so it is running on 2x air and 1x fuel?
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Feb 14, 2007 12:35:13 GMT
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jets all looked fine when I had them out, gave them a blow through, I shall however check again with the old glasses on  |
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Feb 14, 2007 12:37:35 GMT
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My car did that too, so I changed to Twin SU's from a Single 2BBL...
Wait.. that doesn't help you...
Maybe it's an option? ;D
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Skyline: 1963 - 1973 - 1983
Sunny: 1982
450SLC: 1973
Navara: 1992
Gloria: 1992
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rod
Posted a lot
Posts: 1,953
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Feb 14, 2007 13:27:57 GMT
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Carb to manifold gasket? ..especially if its one of those thick plasticy ones ....just my 2p.....
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Feb 14, 2007 13:32:21 GMT
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also check for a colapsed exhaust box, same thing happened to me resently
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"quote hairnet"
I'm not paying nine pound for a pi$$!
[/quote]
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Feb 14, 2007 16:07:32 GMT
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Thanks guys, will give her a good look over this afternoon, heres hoping its nothing serious, I can just about handle a carb gasket or a crossbox though |
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Feb 14, 2007 18:45:20 GMT
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too much fuel will cause it to bog worse than too much air IME. Suddenly going lean can also cause pinking. Does it pink or just stumble?
Also check your distributor, failure to advance can cause a stumble when you whack the pedal to the metal. Check both vacuum and mechanical advance are operating freely.
Also also check the secondary choke is actually openning...
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Last Edit: Feb 14, 2007 18:45:53 GMT by akku
1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1994 Ford Fiesta
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Feb 14, 2007 19:23:31 GMT
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Distributor? What's one of them?! (Sorry, 2CVs don't have anything that complicated!)
Could be timing though - if it isn't quite firing in the right place, booting it would highlight a problem. Is it on 123 ignition?
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1986 Citroen 2CV Dolly Other things. Check out my Blog for the latest! www.hubnut.org |
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Feb 14, 2007 20:30:15 GMT
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Distributor? What's one of them?! (Sorry, 2CVs don't have anything that complicated!) Could be timing though - if it isn't quite firing in the right place, booting it would highlight a problem. Is it on 123 ignition? It is on electronic ignition yes, timing strobe out tomorrow then! akku, no pinking, carb mechanics 'seem' ok, may whack one of my spare carbs on tomorrow and see how it goes. I shall post back if and when I solve it! Cheers guys, Mick. |
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Feb 14, 2007 21:21:58 GMT
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Long shot this but ...
The fuel tank system on a 2CV is 'Open vent system' (simlar to many old british motorcycles), in other words if your fuel cap vent hole is blocked (tiny little hole in the cap) from dirt or polish ( or if you've recently fitted another type fuel cap?) then the tank can't 'vent' and thus the fuel system can't 'suck' so to speak.
Used to happen a lot with British motorcycles in the 60's
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