> BTW, someone mentioned the hot water heater coolant loop always by passes
> the radiator. Sounded like a cooling system design flaw which would
> contribute to the engine overheating quicker.
>
> I made a note to add a valve to restrict the water heater coolant flow, if
> needed.
And I'll add that one of my improvements for next year is to put two heater
control valves in this circuit and turn the water heater exchanger loop off
when I'm not using hot water. I this is a good idea for several reasons:
1). The rear of the coach (particularly the bathroom) stays cooler because
the water heater stays cool.
2). The engine doesn't have a loss of circulator 'pressure' to the radiator.
3). I have less risk of a potential coolant loss if the circuit is closed.
There are vacuum controlled heater valves that are normally closed (used on
real old Caddy's, like '62). A couple of these, a vacuum tee, an old EGR
solenoid, a dash switch and I've got a pretty cool low cost improvement.
I'll get my parts list together and send it along when I do the project.
Mark Grady
'77 Kingsley
North Webster, IN
mgrady
> the radiator. Sounded like a cooling system design flaw which would
> contribute to the engine overheating quicker.
>
> I made a note to add a valve to restrict the water heater coolant flow, if
> needed.
And I'll add that one of my improvements for next year is to put two heater
control valves in this circuit and turn the water heater exchanger loop off
when I'm not using hot water. I this is a good idea for several reasons:
1). The rear of the coach (particularly the bathroom) stays cooler because
the water heater stays cool.
2). The engine doesn't have a loss of circulator 'pressure' to the radiator.
3). I have less risk of a potential coolant loss if the circuit is closed.
There are vacuum controlled heater valves that are normally closed (used on
real old Caddy's, like '62). A couple of these, a vacuum tee, an old EGR
solenoid, a dash switch and I've got a pretty cool low cost improvement.
I'll get my parts list together and send it along when I do the project.
Mark Grady
'77 Kingsley
North Webster, IN
mgrady
