[DML] Re: Cooling System Problems - still (coolant overflow bottle)

["content22207" <brobertson@xxxxxxxxxxxx>]

Don't forget to use an overflow style radiator cap, otherwise coolant
will never get sucked back.

System also MUST be 100% tight, otherwise it will suck outside air
rather than overflow coolant.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> 
> 
> Putting an overflow bottle on is a no-brainer. When I changed over to
> a metal header bottle I was no longer able to check the coolant level.
> To fix that I could have used a clear hose with two fittings top and
> bottom into the header bottle but I couldn't find any clear hose that
> could take the pressure and temperature. It was then that it made
> perfect sense to just add a hose to the fitting under the pressure cap
> and run a hose over to an overflow bottle. I mounted mine just ahead
> of the carbon cannister on the left side of the engine compartment and
> ran the hose over the motor. You need a fairly large bottle because
> the Delorean has such a large volume of coolant so there is more to
> expand and contract. You also want to try to keep the overflow bottle
> as close to the same level as the pressure cap to avoid creating a
> "head" ie, a differential that can cause a siphon. This overflow also
> helps to prevent any foaming and it reduces the air in the system so
> it should reduce corrosion. The biggest problem is you have to have a
> TIGHT (leakproof) system because it is almost always under pressure
> and is usually at a higher pressure longer because there is no air in
> the system to compress. As soon as you start to heat the coolant up
> you have the system under pressure. Be gentle with the fitting under
> the pressure cap on the header bottle. On mine it was just a tight fit
> and when I pushed the hose on it fell out. I epoxyed it back on so it
> wouldn't leak. Any generic overflow kit will work. This is one of the
> cheaper (read inexpensive) upgrades and is not so difficult so just
> about any owner could do it.
> David Teitelbaum
> vin 10757 
> 









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