bliffle

Let it set for 24 hours again, went out and added about a spoonful of water (that's good news!), started it with NO puff of white smoke and NO stumble when starting engine! Looking good. Later today I think I'll drain all the CRC-bearing water out and refill with distilled water.
Maybe air out the system in between.

These final steps are pretty easy. Just need to be able to let the car set and have another car to drive in the meantime.

B

bliffle

Bump

bliffle

OK, I've operated the car for about 20-30 minutes each day for the last week, and it seems to have gotten better: starts without white smoke and doesn't stutter. So I'm gonna drain the CRC, flush it out good, let it air out for a few hours, and then just fillup with distilled water (no danger of freezing here , now) so I can add more CRC easily if required.

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KehoeAutomotive

K&W Rocks!!


I had a car drive into the shop with a blown headgaskett and a cracked head and K&W fixed it up just fine.

The K&W even filled the spark plug gap! Amazing stuff.

It does not however work with antifreeze. Follow the directions exactly.

bliffle

I've seen K&W but never tried it. Do you know what is in it? Near as I can tell, CRC is a sodium silicate fluid filled with copper filings of various sizes.

I started flushing the CRC a little while ago, and what comes out is very slightly milky looking, and slippery between the fingers (I'm guessing this is a sodium byproduct, alkaline in nature). No real sign of copper evident. When the fluid runs toward the sewer it has a milky color, very slight. I filled it with tap water, ran it at temp for a few minutes with the cap back on and the tee capped to seal the system. It's cooling now, and when cold I'll flush it again.

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bliffle

OK, I just started it up: NO white smoke, NO water at the end of the exhaust pipe! And the water I flush out is NOT slippery or milky.

Think I'm getting close to the end.

The Prestone plastic tee has been a BIG help. I'm gonna leave it in.

Couple more flushes and I go with distilled water.

I guess it's been about a week of elapsed time, and about 4 hours of work, in little bits.

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KehoeAutomotive

Woo Hooo!!!!!

bliffle

One of the guys wrote about discovering sludge in the water passage below the rotor on an engine he was rebuilding. Maybe that was some kind of block seal: it would gravitate to the lowest point. So I'm thinking about how to get all that stuff out. Repeated flushing is sorta good, but not sufficient, as the metal dust would gravitate there after every rinse, and the thermostat would keep fresh water from getting there when the engine is cold (the tap water is inserted on the radiator side of the system). So I think I've either gotta remove the thermostat, or be able to flush when the engine is hot. When I do the latter the prestone plastic fixture gets sorta soft! But seems to hold up.

I'm kinda wary about that K&W stuff, because it's maybe too good. One of the traditional problems with things like "Barrs leak" (which has been around forever) is that they even plug holes you don't want plugged, like in the radiator.

I'd feel better about the CRC stuff if I saw copper particles flowing out with the flush water.

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MarkPerez

the way the product works is by presure and heat. And yeah , remove the thermostat during the treatment(s).
To really flush an engine good, the t-stat comes out.

bliffle

I didn't remove the tstat, but I did run the engine with the rad cap off and a slow stream of tap water into the prestone T so that the temp would go to normal so water would flow throughout the system. Seemed to work OK.

I'm about ready to declare this a success! No white smoke, no stumble. I figure to run it around town a few minutes each day for a few days with tap water, then drain it, air it out, fill with distilled water and coolant.

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smith88

Will Bar's Leaks brand work instead of Block Weld?

It is a clear liquid with copper particles floating around in it. It contains sodium silicate also.

I don't want to use the wrong stuff.

Cody

I just had another customer with an 84 GS come into Checker after I mentioned this KW stuff will fix his smoking problem.

He stopped in just to tell me it was a perfect success, and the car feels like new again.

I'm almost saddened that my car doesn't smoke.....because I can't do this.

MarkPerez

another thing to look for is the coolent system loosing coolent,,,does the engine burn the coolent ? check the level in the radiator. sounds like it worked.

bliffle

I'm calling the CRC treatment a success. I'll see how long it lasts, as I intend to keep this car a while.

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Rx7carl

Archive material here.

You got lucky, glad it worked out in the end.

ostryjak

I just did this fix myself last weekend and ...... sure enough my water pump fried this morning. However - the white smoke has gone :-). I left the block weld in the system meaning to flush it this weekend - too late the pump is scrap. Having read all the other posts on this fix I am inclined to think that one does need to leave it in at least a couple of days for good measure - heat up , cool down , heat up cool down and if ANY leakage is still taking place it keeps a pluggin till it doesn't leak. The cost - looks like a water pump every time from what I can make out. Picking mine up on the way home. Still a cheap *** fix at $46 for a water pump.

bliffle

OK, it's 2 months later and a couple hundred on the odo, and I checked the radiator and it's full of brown scale! WTF!

So I drained it and refilled with tap water.
F

bliffle

I'm doing the same procedure on the new 85SE.

Wish I knew why all the brown scale came out of the blue83. This time I'll top up with distilled water and some coolant, to get the benefit of the additives in the coolant.

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Richard Miller

If I knew this worked 2 years ago I would still have my TII.

MarkPerez

thats wierd,,, but it has not burned any coolant off ?
you know that a lube is needed in the cooling system.
anti-freeze or better yet some water wetter.

usmcjsy

iTrader: (1)

I may have a blown coolant seal, what are ya guys recommending?

bliffle

OK, it's 3 months later, and I'm declaring this fix a success! Yesterday I unscrewed the radiator cap and got a hiss from the cold engine. After sitting unused for 2 days. And no coolant missing. I think that proves there is no leak in the cooling system.

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