Phil -
Well I know this is or isn't what you want to hear, but, I have to
congratulate you! You've completely tuned your car!
A little "puffing" out the exhaust at idle, if there's no missing, is
quite normal for a healey.
I'd suggest enjoy driving the car now!
Alan
On 8/4/08, PhilRitten@aol.com <PhilRitten@aol.com> wrote:
> All,
>
> I am still getting a "puffing" noise from my BN4/6 after I have driven it a
> little. After warming it up, I take it up on the freeway a mile or two,
> turn
> around and bring it home. After that, every fourth or fifth sound out of
> the
> tail pipe is a "puffing" sound. Interestingly, the idle is still smooth (no
> obvious missing). The only way you can tell there is a problem is listening
> to
> the tail pipe. BTW - when idling and warming up in the garage there is a
> steady staccato sound from the tail pipe.
>
> I'm rather puzzled. I replaced the plugs/cap/rotor/wires and set the timing
> around 15 BTDC. I looked under the hood at night (in the dark) to see if
> there was any shorting and didn't see anything. There doesn't seem to be the
> same
> problem with the rotor rubbing on the cap that I had before. By the way, I
> have electronic ignition.
>
> I'm wondering if it could be something like a bad coil or something that
> fails once it has warmed up.
>
> Thank you all,
>
> Phil
>
>
>
> **************Looking for a car that's sporty, fun and fits in your budget?
> Read reviews on AOL Autos.
>
>(http://autos.aol.com/cars-BMW-128-2008/expert-review?ncid=aolaut00050000000017
> )
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Alan
'52 A90
'53 BN1
'64 BJ8
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