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Discussion Starter #1

was wondering if anyones tried liquid intelligence 245 because working on a ef fairmont that has a leaking head gasket.

its just got slight rough idle, blows some water out exhaust sometimes pressurises coolant not often no oil water and oil mix, probhably similar to a lady celia thats got a ef thats got a video on liquid intelligence website

with that type of damage whats best way to apply the product for long lasting repair, celias head gasket problem was blowing steam out tailpie and bubbles in radiator

is taking out the plug and unplugging the fuel injector for that cyl thats got the miss and running the engine with plug out going to be ok while applying product

if anyones tried it can they please give some tips

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I am skeptical, but I have never tried it so cannot offer any objective advice. While you may consider you have nothing to lose by trying it some similar products are known to clog heater cores, radiator cores, thermostat air bleed valves etc. It may be wise to check that there is nothing in the product that will create such issues or clog fine water channels. I suspect like many other such products, it will address the head gasket problem at least temporarily; the question is will it cause other problems later and how long will it last; perhaps less than 100km if the head gaskets is delaminating.

The main doubt of have with chemical gasket sealants is to do with the reason why the early E series actually start have head gasket issues.

The most common reason the head gasket fails in the EA EB ED EF EL six series is that the head gasket is designed to block of two coolant passages at the front of the head and the coolant then erodes and delaminates the graphite or composite gasket there. The chemical block won't stop this eroding and delaminating action continuing although for a while it will stop the new leaks; however it will eventually get so bad the chemical block won't stop it and the leak will take the old chemical block with it with a high risk of the cylinder being flooded and connecting rods being bent. The solution when you replace the head gasket is to use a Ford OEM Multi Layered Steel (MLS) head gasket from the later AU model or the aftermarket Permaseal MLS gasket (the steel doesn't erode or delaminate). Of course if you also use the Liquid Intelligence coolant and run without a pressure cap perhaps the lower coolant pressure might reduce the eroding and delaminating effect of the coolant (that's an unknown).

Another reason head gaskets fail in these models is an earlier extreme overheating event has softened the head so the head bolt caps sink into the softened head; and you get head flutter at each or both ends of the head. Again a chemical block solution will not last for long as the head bolts will continue to sink into the softened head and the head flutter will worsen again with the risk of catastrophic failure and bent rods. There is only so much space between the head and the block that a chemical block under pressure can fill.

If the head gasket leak is caused by some less common reason (but how would you know) the chemical solution might be OK. And given the age of these cars, and if maintaining originality or matching numbers is not an issue, it likely also makes very sound economic sense to use the chemical solution and plan to replace the motor with a lower mileage AU or later model one if and when, the chemical solution fails and the catastrophic failure occurs.

If you a hoping to hide the fault while selling car any buyer with a knowledge of these cars will do a cooling system pressure test and most of the quick leak fix agents will fail under a pressure test,
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