NC hybrid setup/coolant blows heater core/how to avoid?

[steve ravet]

The JTR S-10 book shows 2 Everco 5/8" heater hose fittings, one with a
built-in restriction (3/8").  Part #H2894.  They also list a similar GM
part, #10039163, used on some 4cyl S-10s, to restrict flow.

I am pretty sure there is an in-line restrictor used on some Corvettes,
but I can't find in in JTR book.

> > I know this is NC but I"ve exhausted my related Nissan/Datsun list w/ no
> > good info.
> > A few of us have sb chevy V8's and several have experienced heater core
> > problems d/2 higher/greater coolant flows/pressure (I don't know
> > specifically), they've replaced w/ brand new units and halfway thru
> winding
> > out and leaving another NSX (their ride, mine wouldn't do that;^) their
> > heater core will fail again.
> > They only discussed ways to just bypass the heater core which is simple
> but
> > I live in the often rainy pacific nw so need heat occassionally throughout
> > the year and would prefer some sort of pressure reducer mini-manifold but
> > I"m not familiar w/ what hardwar is out their or the simplest way to solve
> > this.  I'm not sure if it's simply a matter of too much flow or pressure
> or
> > combo of both that fails them.  Mine's still OK but I haven't ran it very
> > hard yet and want to preempt a painful heater core R&R etc.
> > Ross Corrigan  /  Vancouver, Canada

-- 
Steve Ravet
ARM, INC
steve.ravet at arm.com
www.arm.com