Wind and Its Effect On Cooling

[55 Fargo]

I have noticed, as it is a very windy province where I live, Winnipeg is known as the Windy City, like Chicago.

I was driving the 47 last night, It was quite windy, temp was around 60,engine temp was doing nice at 165.

While driving with the wind, the cowl vent was alomost sucking air back out of the car, stuck my hand out the window, and could not feel the wind against my hand.

Now when driving with the wind, especially if it is extremely windy, could this impair airflow across the rad, at higher speeds, I know the fan will also do some air movement.

The last time my engine ran hot, I was driving with the wind, on a warm, day.

I have also acquired a 6 blade fan from a truck, this might help things a bit too.............Thanx Fred

[Plymouthy Adams]

maybe I have missed it Fred but in reality have you corrected the 10 degree known temp variance in your gauge yet and checked this for linearity? And second, have you indeed set your timing to specs with the timing light and ensured that in full vacuum advance you are not pulling to much advance timing? Until your basic stats are set and ensured..checking your temp across any temp or operating condition is purely a guestimation...

[Don Coatney]

Fred;

Apparently you have not read my posts in the past. I have mentioned more than once that when I head into the wind my thermostatically controlled cooling fan does not run but it does run when the wind is at my back. Yes it makes a difference. So does correctly setting your engine timing. As Tim mentioned have you done that yet?

[55 Fargo]

I have not timed it with a timing light yet, but did advance it a bit, I figured the late timeing may be an issue, but will confirm with a light just as soon as I can, waitng for a friends light.

At the moment I have the manfolds off, I broke one of the 3 exhaust bolts, I now have a dilmena on how to get it out of the block, the darn thing broke flush.

I am paying attentiion to your posts and read most of them, and Tim's as well, I really appreciate any input/and/or ideas you 2 throw my way, I do not ignore either one of your's advice or suggestions, I appreciate any help you can offer...........Fred

[Don Coatney]

You need to retard your timing not advance it as has been mentioned several times in the past.

[55 Fargo]

Okay, I was under the impression that if the timing was late it might cause overheating, thus my mistakenly thinking to advance the timing, will retard it, mabe set to 2 ATDC..........

[RobertKB]

Timing should be set to 2-3 degrees BTDC, not ATDC.

[55 Fargo]

Robert is BTDC on the retard, and is ATDC on the advance side of the equation.

Not sure why I am mixed up with this, reason I have yet to find an explanation in any book to deifne the terms............Retard confusion

[Jim Yergin]

Fred,

BTDC is "before top dead center" (i.e. advanced)

ATDC is "after top dead center" (i.e. retarded)

Jim Yergin

[55 Fargo]

Thanx Jim

[Don Coatney]

Fred,

BTDC is "before top dead center" (i.e. advanced)

ATDC is "after top dead center" (i.e. retarded)

Jim Yergin

True Jim but;

If the timing is currently set a 5 degrees BTDC and it is retarded by 3 degrees it is still BTDC but slightly retarded from its original setting.

Still confused Fred?

[dirty dan]

Okay, I was under the impression that if the timing was late it might cause overheating, thus my mistakenly thinking to advance the timing, will retard it, mabe set to 2 ATDC..........

Late timing will cause a lean burn and heat the exhaust manifold.

[Don Coatney]

Late timing will cause a lean burn and heat the exhaust manifold.

True but it will not (in most cases) overheat the engine coolant nor register on the temperature gauge.