[Peugeot-L] Re: 505 Diesel radiators & heater core by-pass

From: Brian Rodgers <brians.outfit_at_gmail.com>
Date: 04/17/06

Yes the canister is surrounded by glass. And no, at the moment I do not have a picture of it as I am focusing on the head bolts. If the head bolt torque works out I will take some pictures after a while. How do I post images to this group?

Brian Rodgers

On 4/17/06, firepiston <firepiston@fastmail.fm> wrote:
>
> If the valve in your heater core is leaking, you should see coolant
> in the passenger compartment. A good heater core should handle 40 to
> 50 psi. Your radiator cap is 12 to 15 psi, if working, should
> protect the heater core. If you see bubbles in the expansion tank
> you most likely have a head gasket or head leak. There is a product
> called Thermagasket recommended to me by a mechanic friend who's
> used it and says it works as far as repairing leaking head gaskets
> and blocks. http://www.rxauto.com
>
> It's an expensive (around $100) 2 part mix and you must follow the
> directions. If you try it please report your results.
>
> --- In peugeot-L@yahoogroups.com, "Brian Rodgers"
> <brians.outfit@...> wrote:
> >
> > I too am working with a diesel coolant system. I have a 1981 505s
> TD XD2S
> > engine. Yesterday I did the valve adjustment. They were not off by
> much, a
> > little tight. I spent the rest of the day replacing hoses and
> generally
> > investigating my new car. While I have the coolant reservoir off
> for the
> > valve adjustment I checked the hoses going to the heater core. One
> has been
> > cut off at the firewall the other removed from the right rear head
> port and
> > the hose which comes from the cluster by the water pump goes back
> into the
> > head bypassing the heater.
> > I got this car cheap from a used car dealership because their
> mechanic said
> > bubbles in the radiator mean blown head gasket. I wrote about this
> when I
> > first joined this wonderful group last Summer. I have decided to
> drive the
> > car as it is not blowing out coolant hoses. I investigated the
> heater core
> > and it looks like the valve is what was leaking.
> > Here is my hypothesis: I believe the valve couldn't handle the
> increase in
> > coolant pressure due to either an obstruction or a head gasket
> leak. After
> > seeing the heater core bypass job, I think this car has been
> pressurising
> > the coolant lines for a long time. I am considering installing a
> valve in
> > the hose going to the heater core, to protect the heater valve in
> the
> > Summer. Any thoughts on this?
> >
> > During my investigation under the hood, I am looking at this
> canister in
> > front of the vacuum bottle. It has two fuel lines and what looks
> to be a
> > fuel reservoir in the bottom. Perhaps a pre-fuel filter/strainer
> water
> > separator thing? I can't figure out how to pull it out for
> maintenance. It
> > is mounted to the left hand wheel well with plumbers strap, so it
> may be an
> > add-on. It has some kind of drain in the bottom, which goes
> through the
> > wheel well to the ground. I can't tell if it was original
> equipment or what.
> > Please advise
> >
> > Sincerely,
> > Brian Rodgers
> >
> >
> > On 4/15/06, Brian Holm <peugeots@...> wrote:
> > >
> > > Richard,
> > >
> > > The radiators should be equal in performance. There isn't a
> factory
> > > hose that will connect your water pump with that radiator, but
> there
> > > is an aftermarket one that will work fine. You could use 604
> lines
> > > to connect the transmission with the heat exchanger. That would
> > > probably be preferable to an external cooler.
> > >
> > > Brian Holm, Used and New Parts for Peugeots
> > >
> > > At 06:03 PM 4/15/2006, pugmanvancan wrote:
> > >
> > > >Hi, hoping someone more knowledgeable than I can give their two
> cents
> > > >worth. I have received (thanks Chuck) a replacement radiator
> for my
> > > >'85 XD2S turbo diesel. It came out of a 604 TD so is slightly
> > > >different to the one in my '85 505. Firstly the top hose
> connects to
> > > >the same side as the bottom hose and secondly the auto trans
> cooling
> > > >lines are on the opposite side. Ok so I can get around the trans
> > > >cooling by going with an aftermarket cooler but will it make a
> > > >difference to engine cooling if I now have both hoses
> connecting to
> > > >the same side. How does the cooling compare between radiators?
> > > >
> > > >Will I have better, worse or the same cooling with the
> replacement?
> > > >
> > > >cheers
> > > >
> > > >Richard
> > > >
> > >
> > > Brian Holm, Parts for Peugeots
> > > at Peugeot Holm, since 1969
> > > 2120 Maple Hill
> > > Plainfield, VT, 05667
> > > 802-454-7132, fax -1310
> > > ----------
>

--
High tech in the wild wild west.
www.outfitnm.com
Our cool old machines:
1981 Peugeot 505s TD
1974 Mercedes 250
1974 BMW Bavaria
1956 International Utility 460 Tractor


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Received on Mon Apr 17 09:57:36 2006