smoke inside - help
Drifting
Joined: Mar 2011
Posts: 1,693
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From: on Barnegat Bay Joisey
Oil Producer
Joined: Apr 2014
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fair enough, sorry if it sounded like I was pooh-poohing the suggestion. I did try your suggestion in my 1985 to fix a head gasket leak. Unfortunately in my case for the head gasket it did not work, I ended up pulling the heads in doing the job. It was at that time that I realized how occlusive that material can be , It had started to plug two of the coolant passages above cylinder number seven. My understanding of how the chemistry works, it is at a depressurization site i.e., a leak, the chemical turns to a gel and eventually seals over the whole if it is not so big that it can't seal it entirely. In my case and a head gasket it didn't work. When I saw all the buildup in the cylinder head of this material it was rather scary and I decided I would never use that type of material again. In my case I used something called Irontite.
it is not true that the stuff will come out of solution and plug up your system like so many people believe. There needs to be a depressurization experience for the particles to precipitate.
it is not true that the stuff will come out of solution and plug up your system like so many people believe. There needs to be a depressurization experience for the particles to precipitate.
My understanding of why GM puts this type of material in the new LS engine, is to deal with any issues before they get so big that this type of solution will not work, as in my 1985. The whole was too big, and the gel would not hold against the pressure of the cylinder. If it had been in the cooling system since day one, it is very possible that as a small leak forms it is covered over by this material.
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,058
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From: Ohio
Sean
Team Owner
Joined: Sep 2003
Posts: 20,179
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Fall time - heater cores
Winter time - mice problems
Spring time - alternators and batteries
Summer time - speeding tickets
Winter time - mice problems
Spring time - alternators and batteries
Summer time - speeding tickets
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,058
Likes: 108
From: Ohio
fun fun fun
sorry one more question - there are 2 hard lines that lead to the 2 hoses that go to the heater core - can the bypass for the heater happen before the hard lines ?
Sean
sorry one more question - there are 2 hard lines that lead to the 2 hoses that go to the heater core - can the bypass for the heater happen before the hard lines ?
Sean
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Sure. 
My fix for the early systems is to pin the water control valve open.
This keeps coolant flowing year round and prevents the stagnant water from corroding the heater core.
My fix for the early systems is to pin the water control valve open.
This keeps coolant flowing year round and prevents the stagnant water from corroding the heater core.
Last edited by JrRifleCoach; Nov 30, 2016 at 12:57 AM.
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,058
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From: Ohio
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