Hi C & L,
I did a simple leakdown test on my daughters Nissan Pulsar GTiR as
follows.
Remove all spark plugs
My "leakdown tester" was just an inflatable spark plug which I hit
with about 200 psi from the compressor.
A good cylinder will try to rotate the crank, so lock the crank up via
gears or whatever.
The proper way is to momitor the % leakdown via gauge over a period of
time, but I simply listened for air at the exhaust then inlet and
finally sump.
You can monitor the sump by removing the oil filler cap and wathing
for or listening for oil mist escaping i.e. air blowing by the
piston/rings.
Coupled with a compression test I picked up two broken pistons this
way.
Regards,
Graeme Suckling
1965 SP310 - under restoration.
1971 P510 4 door daily driver.
1972 PL510 2 door - in storage.
1973 240Z - re-building.
-----Original Message-----
From: owner-datsun-roadsters@autox.team.net
[mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of audela2
Sent: Saturday, 28 September 2002 1:46 AM
To: Roadster Mail Group
Subject: Troubleshooting the next problem
Well, we FINALLY got the '64 1600 running and the carbs balanced,
thanks in
large part to Keith and his excellent article he posted earlier about
balancing the little monsters. She runs well, Len even says she's fun
to
drive (seat is too far back for me to reach the pedals; next project,
replacing the seats!)
We are facing a smoking problem now (the car's, not ours!) At idle
everything
is fine, but upon accelleration it pours out a whitish/bluish smoke
that has
an odd, kind of rubber smell. Oil level is fine. Temperature stays
between
190-200 with a 180deg thermostat installed. The previous engine
simply poured
oil out the tailpipe, so I'm sure there is residual oil left there.
We
haven't drained the gas tank yet; it has gasoline that's a mix of 1 yr
old
stuff and probably older.
We have a compressor, we have a hose that can fit into the spark plug
hole.
How do we do a compression leak down test? What is the pressure we
use?
Any ideas & input is as always greatly appreciated. We would never
have
gotten THIS far with our first engine swap project if it weren't for
all you
wonderful people :)
Charlotte & Leonard Hoover
Phoenix, Arizona
'64 SPL310 1500
'64 SPL310 1600
Plus various non-running projects
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