I said reservoir, meant expansion tank. Engines run about 180 deg,no problem, but I am adding fluid often. no leaks, not on long runs,but when turning motors on and off I need to keep an eye on the fluid level. Same on both motors.
On Tue, Feb 9, 2010 at 11:03 PM, 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%[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.
