For the vacuum advance, you may have a bad vacuum can. You can check this
with a pump like the Matyvac.
http://www.toolsource.com/vacuum-pump-auto-tune-brake-bleeding-p-65755.html
These are great for one man brake bleeding also. At idle you won't have
hardly any vacuum so the advance may not move much, if at all. But it should
at higher rpm. Is the breaker plate stuck? It sat for several years.
As for the water leak, I would take it to a radiator shop and have them
pressurize the system to try and find the leak. I think some auto stores
will let you borrow one also. You could have a leak anywhere. Just because
you see water at the bellhousing doesn't mean it's a freeze plug. Maybe the
intake. Heater hose, water pump seal, head gasket. Any water in the oil? In
that environment, blowing from the fan, wind coming in at speed, vibration,
it could be anywhere. Goode luck. Hope this helps you out.
----- Original Message -----
From: "Mark Hall" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, July 11, 2008 9:43 PM
Subject: [Chevelle-list] Let's try again....
OK - let's try this again....(second time to post my questions...)
I've recently gotten around to working on my '67 Chevelle after ignoring
for
it several years (I know... bad bad bad)
I did a LOT of pre-start work on the motor to ensure I didn't cause any
damage - which seemed to pay off as it started right up the first time.
(changed oil, drained all the fuel, pre-lubed extensively etc etc)
The motor (built 350) is running pretty good except for two issues that
I'd
like help with;
1. I 'think' the vacuum advance isn't working - when I put the timing
light
on the engine, the timing doesn't change at all with or without the vacuum
advance connected... shouldn't it change? Would this cause 'popping'
through
the exhaust at higher RPMs? (~4000rpm) - i.e. no advance for higher rpms?
and
2. At sustained higher rpm (say 3000rpm+) - there is coolant dripping from
the bellhousing - I'm assuming this means I've got a bad freeze plug on
the
back of the motor - anyone else ever had this? It doesn't drip unless the
motor is running up - i.e. no drips at idle. I've verified there are no
leaks anywhere else on the motor.
Thanks everyone - I hope to have the rust-bucket running and driving good
enough for next year's Chevelle-a-bration.
How about some responses?
Mark
