'68 running warm <--my '67, too!
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

'68 running warm <--my '67, too!



These fail frequently and are easy to check.

Paul

In a message dated 6/15/2004 11:26:15 PM Eastern Daylight Time, dickb@xxxxxxxxx 
writes:

> 
> 
> Check your fan clutch, Mike, before you go off on a wild goose chase.  High
> speed driving will cause the engine to heat up.  I know this is
> counter-intuitive, but I've seen it enough times to believe it.  Apparently
> the aerodynamics are such that too much air gets around instead of through
> the radiator if the fan isn't doing it's job.  Of course there is a lot more
> heat rejection at high speeds also (that extra gas goes partly into heat).
> 
> Another cause of high speed overheating is the lack of an anti-collapse
> spring in the lower radiator hose.   The average gas station mechanic
> doesn't know much about physics, and discards that spring when replacing the
> lower hose.  It is important - the water pump inlet side can actually go way
> below atmospheric at high RPM.
> 
> So squeeze your hose to see if you can feel its ribs.  If you can't - you've
> found your problem.
> 
> Dick Benjamin
> ----- Original Message ----- 
> From: "Mike Pittinaro" <mechimike@xxxxxxxxx>
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Sent: Tuesday, June 15, 2004 12:57 PM
> Subject: Re: IML: '68 running warm <--my '67, too!
> 
> 
> > > 68) - I temporarily bent up some coathangers from
> > > the motel closet to force
> > > the blades to turn with the pulley all the time.
> > > Noisy as hell, but it sure cooled the engine down!
> > >
> > > Dick Benjamin
> >
> > Dick Benjamin, or MacGeyver...you be the judge!
> >
> > On a serious note, I've noticed my own '67 running a
> > bit on the warm side now that the daytime temps in our
> > nation's capital have broken the 90 degree mark.  At
> > idle, its fine, however the faster I go, the warmer
> > the needle registers.  This seems counter-intuitive,
> > since there would be more air rushing past the
> > radiator at, say, 90 than at a stoplight (Not that I
> > EVER drive 90...no, not me.)  At idle, the gauge will
> > return to and sit at the mark indicating the bottom of
> > the "operating range" on the gauge, but above 55 or so
> > it will begin climbing.  It stays within the
> > "operating range" but gets into the top 1/3 of it,
> > which I consider a bit too warm.  My old '67 would
> > stay in the same place regardless of driving
> > conditions.
> >
> > My own thoughts tend towards something wrong with the
> > engine itself, ie timing wrong, plugs, mixture, etc,
> > rather than a defect in the cooling system.  Am I on
> > the right track here?
> >
> > =====
> > --Mike Pittinaro
> >
> > One point eight litres
> > Stromberg carburators sing
> > Loose nut at the wheel
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Mail Address AutoComplete - You start. We finish.
> > http://promotions.yahoo.com/new_mail
> >
> >


Home Back to the Home of the Forward Look Network


Copyright © The Forward Look Network. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
This site contains affiliate links for which we may be compensated.