Head gasket magic

[jackso11]

Has anyone ever seen this?

 

http://www.ebay.co.uk/itm/Mazda-MX-5-Head-Gasket-Repair-x-1-Bottle-/230652178019?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item35b3f0ee63

 

I found it while looking at mx-5's on ebay as I am thinking of building one of the new mx5 based caterham/westfields. You can't fix a blown head gasket with liquid...can you? I looked it up on amazon and there seem to be reviews of it working.

[TubbyTwo]

I think I would rather just replace the gasket.

[stevie_b]

It sounds a bit like Radweld but for BHGs instead of leaky radiators. My fear is that it would have the same problems as radweld. How does it know what holes to plug, and which to leave alone? Would it bung the thermostat up? I wouldn't touch it with a blown bargepole unless people I trusted and who knew about cars recommended it.

 

Also, it would only "fix" head gasket failure where the coolant either leaks out or leaks into the engine oil. It might be possible (but less likely?) for head gaskets to blow causing oil to leak out of the block.

[Soopra]

it's a fantasy product created by Toyota in an attempt to lure you into MK3 ownership believing BHG's to be a problem of the past...

[barneybrendan]

not sure on that product but i used the one on my link on my chevy astro day van.It had water dripping out of the exhaust and when i used it we could actually see the drip getting slower until it stopped.I had the van a further fiew months after that until i sold it on to a guy from birmingham ,i got a message after selling it to say how pleased he was ,so i wouldnt hesitate to use the product again.

 

http://www.ebay.co.uk/itm/SEAL-UP-BOILER-REPAIR-HEAD-GASKET-STOP-LEAK-TANK-/190349293558?pt=UK_Car_Accessories_Car_Care_Cleaning&hash=item2c51b3b7f6

[Chris Wilson]

I would imagine it's one of those products where a line up of bored old women sit sticking labels on bottles of the exact same snake oil. 2 hours labelling as a sex aid, 2 hours as a petrol additive, two as a snail killer, two as.... You get the picture!

[jackso11]

I thought it might be good for a van, or a daily driver, basically somehting that is not high performance. That seal-up stuff sounds interesting.

 

I really want to try it out but don'e have a crappy car to do it on. I think I might be getting a van to turn into a camper over christmas with the aim of an engine rebuild, might buy one dirt cheap with a blown head gasket and try this out to see how it lasts as I will be rebuilding it anyway. If I find one with a good body but blown head gasket that is.

[stevie_b]

Up to you, but I'd never be able to fully trust it. If it's strong enough to bung up hairline gaps between the cylinder head and bottom end, what will it do to the waterways, oilways, thermostat jiggle pin, etc etc? If it bungs those up, you might not know about it for a few hundred or a few thousand miles.

 

I see what you're saying about using it on a blown engine, but if it *appears* to work and gives up or has blocked some bottom-end oilways and the engine lets go 2000 miles later due to a blocked oilway whilst you're driving somewhere with a camper-load of family and suitcases, I'd lose my sense of humour about it.