Be sure to use a sealant or they will leak.
>Linda,
They go back in by
>placing a socket of the same diameter in the freeze plug, and then tapping
>them in with a mallet. >
>Fred - So.SF
>
>----- Original Message -----
>From: "L Jordan" <ay107@lafn.org>
>To: "datsunmike" <datsunmike@nyc.rr.com>
>Cc: "Datsun Roadster Mailing List" <datsun-roadsters@autox.team.net>
>Sent: Saturday, June 09, 2001 9:34 AM
>Subject: Re: No Thermostat
>
>
>> Mike,
>> How are the freeze plugs removed and are they reusabe?
>> Linda
>>
>> datsunmike wrote:
>>
>> > I did the same with my blocks too. I couldn't believe how much casting
>flash
>> > was in the water jackets.
>> >
>> > I also used a dremel tool to smooth out the water passages and take the
>> > sharp edges off where I could especially by the waterpump. I did the
>same to
>> > the head.
>> >
>> > Mike
>> >
>> > ----- Original Message -----
>> > From: "roadster" <roadster@rcn.com>
>> > To: "Charlie" <cehubbard@home.com>; "Datsun Roadster Mailing List"
>> > <datsun-roadsters@autox.team.net>
>> > Sent: Saturday, June 09, 2001 2:38 AM
>> > Subject: Re: No Thermostat
>> >
>> > > Charlie,
>> > >
>> > > Something sounds wrong with your engine overheating situation. You
say
>the
>> > > block has been flushed twice?
>> > >
>> > > A couple years ago when I had my block flushed, I checked the water
>> > jackets
>> > > before doing any rebuilding. I was shocked to find pieces of metal
>casting
>> > > inside the jackets. Some of these pieces were several inches long. I
>> > fished
>> > > them out thru the freeze plug holes. You can imagine that metal
debris
>> > like
>> > > this can impede the flow of coolant in the engine, and that other
gunk
>can
>> > > build up behind it creating a blockage. (After assembly, the engine
>never
>> > > ran hot.)
>> > >
>> > > This was no fault of the block tank flushing. It was a by-product of
>the
>> > > manufacturing process. A long time ago another 2000 engine block of
>mine
>> > had
>> > > a constricted passage, and I opened it up by breaking off the metal
>> > casting
>> > > that constricted the flow of coolant from the block into the cylinder
>> > head.
>> > > The engine ran cooler after that.
>> > >
>> > > Not saying that this is the situation with yours, just a possibility
>to
>> > > investigate.
>> > >
>> > > Fred - So.SF
>> > >
>> > > ----- Original Message -----
>> > > From: "Charlie" <cehubbard@home.com>
>> > > To: "Datsun Roadster Mailing List" <datsun-roadsters@autox.team.net>
>> > > Sent: Friday, June 08, 2001 6:56 PM
>> > > Subject: No Thermostat
>> > >
>> > > <snip>
>> > > > I don't have a thermostat in my car and it runs at about 230
>> > > > deg.
>> > > >
>> > > > Before you start...I removed a stuck/bad thermostat in order to do
a
>> > test
>> > > > drive. My engine was just rebuilt and the block has been flushed at
>> > least
>> > > > twice. The radiator has a brand new triple core. My timing is dead
>on 16
>> > > deg
>> > > > BTDC and the carbs are running a little rich. The heater valve on
>the
>> > > engine
>> > > > is closed.
>> > > >
>> > > <snip>
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