hugh:
No. This is not normal in a 6. Give an example of what
happens or how you are driving when it drops (i.e. going
down the road at 45 mph in 3rd gear, RPMs at 3400, turn
on headlights and RPMs drop to 2400?).
Scott Suhring
Elizabethtown, PA
'70 TR6
'59 TR3
Hugh Fader wrote:
>
> At the end of the previous episode, our hero had replaced the torn
> diaphragms in his ZS carbs in order to allow them to be balanced. His
> earlier misdiagnosis that the problem was the front carb's bypass valve
> proved incorrect. In fact the diaphragm in the rear carb was ripped.
>
> We now join him re-adjusting the carbs:
>
> Hmmm. Idle speed is wandering between 500 and 900 RPM. Maybe I somehow
> screwed up the front carb's bypass valve when I removed it. Let's install a
> gasket to disable it. Uh-oh, the problem is not corrected.
>
> A couple of days later:
> Let's try a dummy gasket to disable the rear carb's bypass valve. Great, now
> the idle is rock solid.
>
> So, I guess the torn diaphragm in the rear carb was masking the problem with
> it's bypass valve. Carbs now balanced and pretty darn good idle.
>
> Now, one more observation: With headlights on, idle speed drops 1000 RPM.
> This seems excessive to me. Is this normal behavior on a TR6?
>
> Thanks,
> Hugh Fader
> 72 TR6
> (every day in every way it's getting better)
/// triumphs@autox.team.net mailing list
/// To unsubscribe send a plain text message to majordomo@autox.team.net
/// with nothing in it but
///
/// unsubscribe triumphs
///
/// or try http://www.team.net/cgi-bin/majorcool
|