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>
|