If you think its fuel supply, try swapping the Webbers and see if the
problem happens on the other cylinders.
I have had a similar problem recently. I refitted the head on an unknown
quantity L series engine which I had just bought with the head removed,
because the unmechanical former owner was told by a workshop mechanic it had
a blown head gasket. She couldn't afford the $700 bill he wanted to
reinstall it.
It fired up, but ran as rough as guts, as if it had a head gasket leak, or a
cracked head.
I pulled each plug lead in turn to find it was no. 2 cylinder that wasn't
working. But I noticed as I pulled the no 2 plug lead again, the motor
started running on all 4 when the spark jumped 2cm.from the lead to the top
of the plug. When I refitted the lead it was back to 3 cylinders. I
repeated this test and the same thing happened each time - perfect running
if I held no 2 plug lead 2 cm from the plug, so it had a super fat spark.
I pulled the plug and it looked perfect, as it was a brand new NGK. I
refitted the crappy old plug it replaced and presto, all four were firing -
a dud new plug that required a big voltage to arc it up.
Moral - dont ignore ineffective new parts.
----- Original Message -----
From: "nat P." <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, 1 November 2000 0:58 AM
Subject: Engine Problem!!!! HELP
>
> Morning Listers!
> I have a huge problem, my Datto is
> missing(Misfiring).
> I have checked the following:
> -Spark plug= leads, New leads and plugs
> -Timing, Advance- Changed with new Rotor button and
> Cap
> -Coil.
> All wires.
> I have noticed that if I pull the lead off number two.
> the engine, stays the same.
> Hence Number cylinder is not firing. Another reason
> why I know this is because the plugs are brand new.
> That cylinders plug has no carbon on it yet (Actually
> onlt a 1/4 of it, the rest still looks like its never
> been used). But only is this cylinder no working. I
> did also notice that If I take off number 1. it only
> changes slightly. Hence it must be that Webber. That
> is why I am rebuilding them. If anybody knows exactly
> what my problem is, Please tell me, or any other tests
> I could of missed
> Cheers NAT
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Messenger - Talk while you surf! It's FREE.
> http://im.yahoo.com/
>
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