Tired and frustrated with the glycol in oil leak..

[Ronbo]

The Evens commercial is over, you can relax now.

If you bothered to read through the entire thread you'd find that I may have been the only one to correctly identify Undy's problem. (so maybe I'm not quite the dumbazz you think I am)

But hey, no one could possibly teach you something when you already know what's really happening.

If you'd bother to actually read about the history of this product you'd see that GM invested heavily into it's development - probably because it was totally unnecessary. No, it's probably best to broad-brush people's problems with water as a result of poor maintenance.

I really don't care if you choose not to run it, is it OK with you if someone else does?

[Z-linkCobra]

Originally Posted by Ronbo

The Evens commercial is over, you can relax now.

If you bothered to read through the entire thread you'd find that I may have been the only one to correctly identify Undy's problem.

Still waiting for you to tell us what the problem was.

Or are you too busy patting yourself on the back?

[Ronbo]

Originally Posted by Z-linkCobra

Still waiting for you to tell us what the problem was.

Or are you too busy patting yourself on the back?

The back coolant ports (read the thread).

Don't need to pat myself on the back, cash will do nicely.

Oh, by the way, bite me!

I guess no one forgot to take their azzhole pill today...

GM's research was specifically to address coolant issues with high horsepower engines being developed for the Corvette. (not that high horsepower engines have anything to do with Cobra's) Since emissions dictate not running rich (which would lower detonation problems) they addressed the "real" problem: the steam pockets that develop in any engine's coolant passenges above the cumbustion chamber. (turns out steam is a lousy conductor of heat, go figure) The problems you stated ie: valve spring fatigue and cylinder bore wear are a direct result of combustion chamber temps, not block temp.

There is a huge difference in your cumbustion chamber temp and your coolant temp. Why do you think your recovery tank level varies so much between hot and cold (the liquid coolant only expands slightly) that's how much steam is in your cylinder heads and upper block.

[Z-linkCobra]

Originally Posted by Ronbo

The back coolant ports (read the thread).

Don't need to pat myself on the back, cash will do nicely.

Oh, by the way, bite me!

I guess no one forgot to take their azzhole pill today...

GM's research was specifically to address coolant issues with high horsepower engines being developed for the Corvette. (not that high horsepower engines have anything to do with Cobra's) Since emissions dictate not running rich (which would lower detonation problems) they addressed the "real" problem: the steam pockets that develop in any engine's coolant passenges above the cumbustion chamber. (turns out steam is a lousy conductor of heat, go figure) The problems you stated ie: valve spring fatigue and cylinder bore wear are a direct result of combustion chamber temps, not block temp.

There is a huge difference in your cumbustion chamber temp and your coolant temp. Why do you think your recovery tank level varies so much between hot and cold (the liquid coolant only expands slightly) that's how much steam is in your cylinder heads and upper block.

I dont think it would have helped you Ronbo....

[ERA Chas]

Originally Posted by Ronbo

I guess no one forgot to take their azzhole pill today...

GM's research was specifically to address coolant issues with high horsepower engines being developed for the Corvette. (not that high horsepower engines have anything to do with Cobra's) Since emissions dictate not running rich (which would lower detonation problems) they addressed the "real" problem: the steam pockets that develop in any engine's coolant passenges above the cumbustion chamber. (turns out steam is a lousy conductor of heat, go figure) The problems you stated ie: valve spring fatigue and cylinder bore wear are a direct result of combustion chamber temps, not block temp.

There is a huge difference in your cumbustion chamber temp and your coolant temp. Why do you think your recovery tank level varies so much between hot and cold (the liquid coolant only expands slightly) that's how much steam is in your cylinder heads and upper block.

This scientific discourse may be true when you lecture the forth-graders on your planet, but here on Earth, no one is having steam pocket-itis. Even Patrick. You correctly state (contradicting your planet's science) that the chamber temps are higher than the 'recovery' tank. On Earth that is true -about 700 deg. F difference, but we on Earth have a miracle cooling substance know as water which negates the much feared and dreaded 'steam-pocket formation' syndrome.

For the second time however, you brought it up but failed to explain why GM is not using the magic coolant you promote, in every 'high horsepower' (or low for that matter) Corvette. Or Malibu, Traverse, Silverado or Volt. You're having a credibility problem Dude.

And Undy will use his magnifying glass to read this thread more carefully because he obviously missed your 'block coolant ports' solution to his problem.

[patrickt]

Originally Posted by ERA Chas

And Undy will use his magnifying glass to read this thread more carefully because he obviously missed your 'block coolant ports' solution to his problem.

Am I correct that Undy is still waiting the results of sending out some parts to be pressure tested and that he just mightof/couldof/notreallysureof may have noticed some moisture, and that's it?

[Ronbo]

Originally Posted by patrickt

Am I correct that Undy is still waiting the results of sending out some parts to be pressure tested and that he just mightof/couldof/notreallysureof may have noticed some moisture, and that's it?

Patrick, now don't go posting on threads you've actually read. It sets a bad example for others...

His responses were: (from memory)

1: Interesting idea about the back ports, I'll have to look at that area.

(then later)

2: I've noticed a bit of what looks like porosity on the back machined area.

Considering all the stuff he checked and the history of the problem...

He's doing the right thing and eliminating everything possible, kept an open mind, then I bring up "waterless coolant" and the door slams shut.

Then the reading-challenged ERA jumps in...

I also like ERA's claim there's no steam in the coolant passages. (makes me wonder why they call those extra holes the mfgs drill in the deck face and heads "steam holes" Hmmm.) But what do the mfg's know anyway.

[undy]

Originally Posted by Ronbo

(makes me wonder why they call those extra holes the mfgs drill in the deck face and heads "steam holes" Hmmm.) But what do the mfg's know anyway.

Ohhhhh... shades of Chebby small block 400. Ya got to love those steam holes for the STEAM caused by the siamesed bores. GM knew and designed for it. It's also a problem with the LS motors, #7 hole to be exact.

Sorry Pat, Ernie and Chas, got to go with ol' Ronbo on the steam up your gump-stump theory.

[undy]

Originally Posted by patrickt

Am I correct that Undy is still waiting the results of sending out some parts to be pressure tested and that he just mightof/couldof/notreallysureof may have noticed some moisture, and that's it?

Nah... I'm keeping all my pressure testing in house. I sent the manifold out to be artificially inseminated, or sumpin' like that

My next magic trick will be blowing up the block/heads with some stratospheric pressure testing. I figure 10 or 12 bar will do the trick. My philosophy, can't find a leak? ... make one!

On the count of three, everyone duck!

The nitrogen bottle still has 1500 psi left ... and there's more where that came from

[patrickt]

Originally Posted by undy

My next magic trick will be blowing up the block/heads with some stratospheric pressure testing. I figure 10 or 12 bar will do the trick. My philosophy, can't find a leak? ... make one!

If you have, say, a teensy weensy pin hole leak in the cylinder, aren't you going to have to spray some soapy suds up from the bottom to find it?