Larry...are you driving my car?
I have almost all the same problems. From what I understand, most of the
arise from trying to tune the engine without the vacuum retard. I know
not working, so I have the timing at 10d BTDC. I would like to go to 12
degrees, but then I can't get the idle down. My throttle stop screws are
all the way out now and I'm still at 950 rpm. I can get a good idle at
and bring the idle down to 650 rpm, but then I get no acceleration
unless I run
the carbs way too rich.
Anyone have a few ideas?
larry stein wrote:
> status report...
> i have my 72 gt6 in a driveable state now. today i drove it for the
> first time.
> 1. i don't seem to know how to start it properly. the weather here is
> dry, 60 degrees f in the morning (and late eve) and high 80s to 90 f
> during the day. should i use the choke ? it seems that if i touch
> gas peddle it doesn't want to start. i got it going by playing with
> choke out, in, half out etc.
> 2. if i am at low rpm while driving the car is sputtering and back
> mid to a little higher rpm it is much better.
> very high rpm it knocks quite a bit
> so i had to keep the engine at mid rpm to make it happy.
> when taking off from standing stop i have to really rev the engine
> to get the car going else the engine will really bog.
> 3. the compression is 200 lbs in all cylinders (i verified). i know
> this is high so someone had the head milled.
> 4. the spark plugs were black soot.
> 5. the car runs on when switched off even with the anti run on
> to vacuum line and ignition switch and oil pressure sender. wires are
> correct although i did not take a volt reading.
> 6. i have set the valves at .010 and rechecked them
> 7. i have set the points to .015 but do not have a dwell meter to
> that. how do you adjust the dwell anyway ? i don't know how to do
> 8. i have set the timing to 12dbtdc with the vacuum disconnected from
> the distributor
> q1. what should i do about the timing ? if i set it lower the car
> not idle
> q2. why does it run on ? there is not a large hose on the anti run on
> valve. does that need to be connected too ? right now the only small
> vacuum hose comes from bottom of rear carb to a the ant run on valve
> intake manifold via t connection.
> q3. why does it bog from standing start ?
> q4. why does it not like high rpm ? i am thinking timing, but if i
> it back it won't idle.
> q5. i don't know what gas is in the tank, only that it is not too
> maybe a month or two. i don't know if the prev. owner put in regular
> premium. should i buy a can of octane booster to see what that does ?
> q6. i ordered the carb adjusting tool to try and bring the mixture
> leaner (black sooty spark plugs). i have seen some visual tools for
> checking the mixture. can you recommend something ? the book says to
> turn it one way, then out 3 1/2 turns or something like that, then
> it the other way till the idle goes up (or down). is that method
> (manual) good ? or should i buy one of these add on tools for
> mixture ?
> thank you for your assistance. hope my questions aren't too boring.
> larry stein
> colorado springs, co 80920
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