A couple more things: It seems to be backfiring at the carbs most of the
time verses at the exhaust pipe. But I am not sure it is actually the carbs
but it seems like it.
Also, it doesn't run quite right when I give it some gas and before it
starts backfiring.
I just noticed that I didn't mention that the tube with the screw is at the
intake manifold that used to go to the smog stuff. I already have the
nonemission distributer installed.
Thanks again,
Steve
>From: "steve car" <steve_car@hotmail.com>
>Reply-To: "steve car" <steve_car@hotmail.com>
>To: datsun-roadsters@autox.team.net
>Subject: Backfire problem
>Date: Sun, 22 Oct 2000 02:44:28 GMT
>
>I was out today and all of a sudden my 69 1600 started backfiring like
>crazy
>when I gave it gas. This happens during acceleration and a constant medium
>speed. It ran good at idle and low speeds though. One thing I noticed was
>that my tube with the screw in it had popped off. But it did not solve the
>problem when I put a new one in.
>
>Timing is ok, fuel level in carbs is ok, vacuum advance mechanism moves
>when
>I suck on it. Points, plugs ok. Choke is not stuck. I tried looking for
>manifold leaks with no luck. Maybe I am doing it wrong though. I sprayed
>some carb cleaner at all gaskets and throttle area without noticing any
>stumbling. This was done at idle.
>
>I am out of ideas. Does anybody have any suggestions? How do you determine
>for sure if it is fuel or ignition?
>
>Thanks,
>Steve
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