Good point - Hervey's cap will let you do a separate expansion bottle BTW. Harold McElraft - 3354 --- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> wrote: > > > 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 > > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/