This sounds like the system on my 318's. I have a diagram and instructions calling it "The San Juan Cooling System" My heat exchangers are mounted along each engine on the outside. I have the original aluminum reservoir, none of the replacement ones fit under the hatch on my '72 SaltyDog.
On Tue, Feb 9, 2010 at 7:17 PM, gene <[email protected]> wrote: > John: > > Am I correct that your engine has a "half" system, that is antifreeze > cooled block and salt (raw) water cooled exhaust manifolds? > > If so, the small aluminum reservoir may not be sufficient to cool the > antifreeze after being heated by both the block and the manifolds. In > a full system, one hose from the heat exchanger usually runs to a T > fitting which in turn runs one hose to the aft end of each manifold. > Hoses also run from the forward or top forward end of the manifolds to > a T and then to the thermostat housing. That puts the two manifolds > in the antifreeze circulating system before the fluid enters the > block. > > The heat exchanger needs to have fittings for the cooling salt water > in and out and then two more fittings for the heated antifreeze in and > out (total of four). You may want to check with some heat exchanger > manufacturers like Sen Dure in Florida for the capacity and size of > the heat exchanger designed for your engine. > > By the way, if the manifolds have been salt water cooled for any > period of time, you may find that the passages are already clogged. > > Gene > > -- > You received this message because you are subscribed to the Google Groups > "UnifliteWorld" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<unifliteworld%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/unifliteworld?hl=en. > > -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en.
