Fred,
i haven't heard the" brass vs steel "argument yet, what is your preference and
why? And how often are the freeze plugs removed and cleaned?
Also the block plug on my 1600 which looks like a big flat head screw does not
seem to come all the way out, is it supposed to? Or do you have to remove it by
it's square base into the engine itself if you wanted to put some kind of valve
there to make it easier to back flush? The water is just trickling out .
thanks,
Linda
roadster wrote:
> Linda,
>
> Place the tip of a flat-blade screwdriver on an edge of the freeze plug, and
> whack the screwdriver with a hammer. The freeze plug will rotate in the
> hole. Then you can grab the freeze plug portion sticking out of the hole,
> with a large-jaw pliers and pull it out.
>
> The freeze plugs are not reuseable, as they get bent in use and removal.
> Besides, they're cheap, couple bucks apiece if that. They go back in by
> placing a socket of the same diameter in the freeze plug, and then tapping
> them in with a mallet. There are different opinions about using brass or
> steel freeze plugs and I'm sure you'll hear them but you decide which you'll
> use.
>
> 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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