Suggestion #1.
With the engine running, use a four gas analyzer (smog testing equipment) to
see if you read any HC's at the coolant pressure cap opening with the cap
removed. If you do read HCs then you COULD have a head or head gasket
problem. LESS likely is a block problem.
Suggestion #2.
Sell me the car.
Suggestion #3.
Pull the spark plugs and check for one to be significantly cleaner than any
of the others. It won't tell you exactly what your problem is, but it will
tell you where to narrow your search.
Suggestion #4
Sell ME the car.
Suggestion #5
Pressurize the cooling system with 15 psi. Remove the spark plugs (see if
one is CLEANER than the rest) and use a bore-o-scope to look inside the
combustion chamber for water ingress.
Suggestion #6.
Sell me THE car.
Suggestion #7.
Pay a technician to do all this work just to get a "No Fault Found"
diagnosis because the time required to properly diagnose really wasn't
invested. Or you could sell the car to me?
Suggestion #8.
Please see my sick humor in suggestions 2,4,6,& 7=. But, you could tear the
head off and do the diagnosis the hard way. I've worked with machine shops
in the past that will pressurize the combustion chamber to 90psi and find
leaks caused by the coolant etching the head from inside the water jacket,
out. I'd cover my bases before tearing the car apart, though.
Suggestion #9
Always get a second opinion from someone you know and trust.
----- Original Message -----
From: "Daniel Neuman" <dneuman@hodge.sfsu.edu>
To: <datsun-roadsters@autox.team.net>
Sent: Thursday, March 15, 2001 6:09 PM
Subject: The case of the missing water
> Hello All,
> So I have a problem maybe with my car. It seems that I fill the
> rad and then a couple of months later its definately lower. The catch
tank
> is empty and I have to put like 3/4 gal in the rad. I do not see any
> visiable water leaks-new hoses and water pump. I don't think that I see
> any white smoke coming out my tail pipe...What could be causing this
> water to go missing?? Do I have a baad headgassket?? How does one
tell
> if the headgasket is bad?? Is there a way to tell without pulling the
head?
> Even if I did pull the head what are the telltale signs that the gasket
> is bad??
> Daniel 69 2000
> SF CA
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