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Old 08-21-2013, 07:03 PM   #19486
Reddog*
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Quote:
Originally Posted by markjenn View Post
Sorry, but again, mostly irrelevant. Cooling towers work by evaporative cooling. A vehicle radiator does not. Totally different thermo principles.

- Mark
That was suppose to be dry towers/closed loop. To much fine print and I buggered the numbers reading charts.

At a given temp that we can live in say up to 100F, 0% to 99% humidity changes the rate by less than 2%.

So it would not be noticed in any thing less than a lab as Graham pointed out.
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Old 08-21-2013, 08:23 PM   #19487
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Originally Posted by Reddog* View Post
At a given temp that we can live in say up to 100F, 0% to 99% humidity changes the rate by less than 2%.
Sounds about right. Interesting discussion.

- Mark
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Old 08-22-2013, 08:35 AM   #19488
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Quote:
Originally Posted by Dallara View Post
Well, that would be true if it weren't for one minor detail...

On almost all liquid-cooled engines there is always some method to allow a certain amount of "bypass" to occur somewhere in the area of the water pump. On many cars it is as simple as a bypass hose, but on most motorcycle engines it is some sort of small casting divot or a simple hole across the intake and exhaust side of the pump. On some bikes it is even done at the thermostat housing, but one or the other, it's there (except for some race bikes that have no thermostat).

Why, you may ask?

When an engine starts cold, before the thermostat begins to open, if the engine were designed as you describe, coolant would sit stagnant and would not move at all. We know that we want the coolant to stay in the engine block so it will warm up quickly, but some coolant must circulate. If it didn't circulate, and remained completely stagnant, localized areas around the cylinder head would literally boil coolant and create steam pockets, quickly superheating the area and causing metal fatigue and component failure. Incorporating a simple bypass arrangement that allows just a small amount of circulation of coolant within the block before the thermostat opens and allows circulation through the remainder of the system.

Further, if there was not some sort of bypass the pump would suck the coolant return hose shut, so the bypass acts as a bit of a negative pressure "bleed" to avoid this.

Don't believe me? Look it up.

Hope this helps!

Dallara

~
My son was testing the " water bypass" system yesterday. Guess what's on his Christmas wish list?

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Old 08-22-2013, 08:42 AM   #19489
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Pluric to the rescue!

This thread had turned into science weekly. Just kidding guys
My wife would say that is just one more way to kill yourself more fun than a fork or spoon
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Old 08-22-2013, 08:54 AM   #19490
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Pluric to the rescue!

This thread had turned into science weekly. Just kidding guys
My wife would say that is just one more way to kill yourself more fun than a fork or spoon
I don't know about the rest of you, but this is how I picture Dallara.....



Not that that's a bad thing he does seem to know his shit.
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Old 08-22-2013, 10:16 AM   #19491
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Originally Posted by pluric View Post
Not that that's a bad thing he does seem to know his shit.
Isn't that a proctologist?
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Old 08-22-2013, 10:24 AM   #19492
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Originally Posted by TH View Post
Isn't that a proctologist?
Not to get technical and start three pages of responses, but I think you mean Scatology.

The study of ones bypass. Normally it comes from a closed system that is controlled
by the bodies thermostat. If you have a faulty system it circulates prematurely and
causes your ride to end faster than you had planned. Beware of the air bubbles in the
system as they cannot be trusted to only vent excess system gas.
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Old 08-22-2013, 10:27 AM   #19493
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Laugh It's a tough job, but somebody has to do it...

Quote:
Originally Posted by TH View Post
Isn't that a proctologist?


Well, somebody has to take care of all you a**holes...







Dallara


~
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Old 08-22-2013, 10:29 AM   #19494
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Quote:
Originally Posted by pluric View Post
Not to get technical and start three pages of responses, but I think you mean Scatology.

The study of ones bypass. Normally it comes from a closed system that is controlled
by the bodies thermostat. If you have a faulty system it circulates prematurely and
causes your ride to end faster than you had planned. Beware of the air bubbles in the
system as they cannot be trusted to only vent excess system gas.
Oh crap, here we go again....
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Old 08-22-2013, 10:38 AM   #19495
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Originally Posted by Dallara View Post
Well, somebody has to take care of all you a**holes...



Dallara

~

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Old 08-22-2013, 11:11 AM   #19496
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A clarification...

Quote:
Originally Posted by pluric View Post


Hey, I don't mind doing a bit of probing, but I don't take no probing myself!!!


Remember, I don't do raven black... I RIDE BLUE!!!





Dallara



~
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Dallara screwed with this post 08-22-2013 at 11:19 AM
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Old 08-22-2013, 12:06 PM   #19497
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For all of you S10 Proctologists.

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Old 08-22-2013, 12:20 PM   #19498
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Quote:
Originally Posted by TH View Post
For all of you S10 Proctologists.







Dallara



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Old 08-22-2013, 01:05 PM   #19499
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Actually, Dallara is not SUPPOSED to be posting right now.
He is SUPPOSED to be spending time with his loved ones.

Turn the Mac off Dallara. Grab a bottle and cigar and go sit on the back porch and CHILL.
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Old 08-22-2013, 01:21 PM   #19500
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Laugh Easy, Snake...

Quote:
Originally Posted by snakebitten View Post
Actually, Dallara is not SUPPOSED to be posting right now.
He is SUPPOSED to be spending time with his loved ones.

Turn the Mac off Dallara. Grab a bottle and cigar and go sit on the back porch and CHILL.


Spent all day yesterday and last evening with my son, DIL, and grandkids... And had a *GREAT* time. Out at the beach over in Port A, then time with the grandbabies at the pool, wonderful dinner at "La Playa" over there, etc., etc. Couldn't have been better.

Unfortunately today my ex-wife has swooped down from her skulking perch and decided to take up most of their day... Since any time she and I occupy the same square kilometer results in sort of a matter/anti-matter collision I decided I'd spare the kids & grandkids the stray high-energy gamma rays rays from that conflagration...





But I'll see 'em tonight and tomorrow!!!

Dallara



~
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Dallara screwed with this post 08-22-2013 at 05:42 PM
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