Do I drill and tap holes for the return lines on the alum reservoir? On Feb 10, 12:03 am, John Miller <[email protected]> wrote: > 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%2bunsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/unifliteworld?hl=en.- Hide quoted text - > > - Show quoted text -
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