You got it Michael. Remove and replace the plug wires one at a time and
listen for a change in tone from the engine. No change means that cylinder
isn't firing. You can get special insulated pliers to do this. If you don't
want to get one of these, cut the engine before you replace the wire or else
you'll have a shocking experience.
> -----Original Message-----
> From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
> Behalf Of SamuelsMA@aol.com
> Sent: Sunday, December 01, 2002 3:08 PM
> To: 6pack@autox.team.net
> Subject: 5 cylinders
>
>
> Listers:
>
> OK, I'm on a roll now, getting answers for all my problems.
> The new one is
> this: my 1970 PI only wants to run on 5 cylinders or so.
> Maybe 4, but I
> think it is 5. I removed and cleaned the plugs. #4 seemed
> to be fouled, and
> #5 and #6 looked a little sooty, but this didn't help. The
> other thing that
> I know is wrong is that the cable which goes both to the
> choke and to the
> cold start fuel distribution thingy has broken at the choke
> end. But the
> choke defaults to the off position, and the problem occurs
> when the car is
> warm. In fact, it doesn't get cold here anyway, so I don't
> think that the
> choke really comes into the picture.
>
> The fuel pump was checked by the mechanic. It is a Bosch unit and is
> functioning well. The wire to the fuel pump was loose, but
> he tightened it.
> The ignition is a Crane electronic unit. The plug wires look
> pretty new, and
> I think they were replaced by the PO not too long ago. The
> PI system was
> rebuilt a few years ago. The mechanic checked this out
> recently, and said
> that it was working well.
>
> I hate to take the car back to the mechanic and lose it for 6
> weeks again. I
> can replace the choke cable myself. Where should I start
> looking for the
> problem? How can I isolate which cylinder is the problem?
> Isn't there some
> simple thing where I remove either the wires or the plugs one
> at a time, and
> then look for a spark or a change in how the car sounds to
> find the bad
> cylinder? Could it just be something simple like a bad spark
> plug? Those,
> by the way, are almost new as well.
>
> Thanks in advance.
>
> Michael Samuels
> SamuelsMA@aol.com
> 1970 TR6 PI
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