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HJHeaven Offline
#1 Posted : Wednesday, 15 October 2008 9:12:19 AM(UTC)
HJHeaven

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Joined: 29/08/2008(UTC)
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Hi all

Finally got my fully recond rochester carby for the 308 and have installed it with an electronic choke.

I have put the carby on (with fuel hose, dizzy vacuum hose and hose to manifold) and installed the choke by wiring into post ignition power.

I have set up the idle/fuel mixture to 2 full rotations from closed.

My question is, it started ok when i installed it and was running nicely (idling and at revs - though a little black smoke at higher revs) and that continued when i took it for a quick run.

About halfway through i gave it a quick squirt to open the secondaries and somthing happened (no loud noise or anything but an obvious lag and running rough).

When i had a look afterwards it was flooded badly with fuel everywher and leeking from under the choke mechanism (but not from the gasket). Since then i have tried to start it and it floods badly straight away.

Does anyone know what i have done wrong - is this tuning or something else.

All help appreciated.

Thanks
Mark

p.s. thanks to all your help so far, this is great place to get this sort of help.


I am not allowed a mistress so i got a GTS - and its better
A GTS/4 is a monaro - so nuuur
trubluhq Offline
#2 Posted : Thursday, 16 October 2008 12:36:14 AM(UTC)
trubluhq

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When it was recod, who did it ? If a shop take it back.

If someone else, here is a checklist. Is it an early model (side entry fuel) or later model (fuel from front) carb?. Is the fuel pressure too high or float stuffed ? Do u have good vacuum for the carby ? The Quad needs good vac to keep idle circuits closed. Its a bit more than just the two knobs outside. Did anyone lose any small springs ?? Did teh carn come off a 308 or something hotter ?

Cheers john
Bazzajd1 Offline
#3 Posted : Monday, 24 August 2009 8:27:24 AM(UTC)
Bazzajd1

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Sounds like you now have the Secondary needles still lifted out of their Jets. Toggle the Secondary Air blades until these needls drop in.
If thats not it try;
Bouncing the float with a screw driver down the float Bowl Top horn hole, it may be needle and seat needs a tap, or you could tap the area where this is lightly, all in all it may do it again simply until you identify exactly what needs adjustment..But something does need adjustment.
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