John H---Plugging the vacuum line that connects the thermostatic vacuum
control (at the top radiator hose) with the vacuum retard capsule on the
distributor is a favorite method for enthusiasts to get a little better
throttle response. When this line is plugged, the ignition timing will
advance itself about 12 deg. (4 ATDC to 8 BTDC) The engine will
noticeably speed up when the retard mechanism is de-activated, and
usually then calls for a throttle adjustment to get the idle back down
to something more civil. A timing light is the best way to check this
ignition timing. The result of all this is slight, but noticeable
off-idle response. It supposedly also increases one of the emissions
in the oxygen nitrate family. If the smog laws in your state are
strict, it may show up if given this test.
Try the VTR website for a little different spin on this. Or:
www.mit.edu/people/zimerman/tr6.html for more interesting reading.
On the "door buzzer"--It should only come on when opening the car thru
the driver side door, with the key in the ignition. I think it is also
activated when engaging a forward gear if the seat switch senses someone
in it, and their buckle isn't in place. Some later model TR's have an
interlock on them that discourages us from controlling our own destiny.
Sounds like you have one of these. You might try simply disconnecting
the wire under both seats. My '73 has two LH door switches. When opened,
one controls the interior lights, the other tells the buzzer to let you
know you left your keys in the switch, you dummy! On the '73 it's
easiest to simply unplug or remove the offending buzzer, and do
something else with the wires to it. Fellow lister, Dan Masters, drops
in on this forum occasionally, and he may have something more
technically correct on this. If he should miss this, you can reach him
and his popular book on TR6 electrics at: DANMAS@aol.com
Dick Taylor
CF11143
|