1.8T engine cured!! - Page 12

teethgrinder · 27th October 2010, 19:32

K-seal...is useful but not in the intended way!

My 1.8K was losing coolant. Not much, but enough to be a worry, so in went some K-seal. It seemed to cure the leak for a while, but the other day the temp went up to 2/3.

The initial leak was a seriously tiny hairline crack on the top radiator fin next to the inlet hose traced by spotting the tiny coper flecks from the K-seal. This was 'fixed' with JB Weld.

However, there was still a leak. This turned out to be one of the brass inserts in the stat housing had come out somehow. New stat, o-rings and a longer bolt and nyloc nut seems to have done the trick.

Robin

kaiser · 22nd December 2010, 10:51

Just an update! Nothing to see here, - pass on!:xmas-smiley-031:

Everything works 100%.

drewbie · 31st January 2011, 16:31

Quote:

Originally Posted by kaiser

Well, maybe I should have a slice of their profits!!

Although I used Wondarweld!

No, it is just a follow up, an example of stuff done, and still working.
Had this not been done, I would have had to overhaul the unit.
It has been worthwhile and certainly much cheaper.
The heater works, the car uses no water, pulls like a train and does over 600km per tank. Seriously, we could not wish for a better vehicle, as long as this continues.
And that is not even considering the luxury, the looks at that price.
Unbeatable.

You say you used Wondarweld, not K-seal, does Wondarweld not have the small particles in it like K-seal, that some say can block the heater matrix.

kaiser · 11th February 2012, 07:46

Just a final up-date.
The engine is now being re-built. The aux belt frayed and lodged itself under the cambelt.

The result has been 16 bent valves, one smashed piston and a cracked liner.

Just to emphazise the point, the failure is not related to the cure affected here originally. For what it is worth it might still be running had nothing happened to the cam belt.

I will thus conclude that the cure has been successful, and the distance covered since the cure is about 40000km.

The engine rebuilt is on hold awaiting Gatekeepers arrival from the UK with new head bolts. The previous lot have been re-used twice. I doubt it is necessary, and I will carefully compare the new and old, but for the sake of a relatively modest amount, I will not take the chance!

The re-building can be followed here:http://www.the75andztclub.co.uk/foru...t=engine+cured

TEOC · 13th July 2012, 20:36

Quote:

Originally Posted by brownie21

I have added K-seal in mine recently as I had a constant small coolant loss. K-seal can be left in the system permanently according to the manufacturer and I have only read good reviews about the product. Those who say 'don't do it it will kill the engine' need to come up with some concrete facts supporting this claim. It doesn't go 'sludgy' and doesn't blocks the waterways. You end up with very minute particles in the water which will eventually pack together at any small leak points (including head gaskets) to seal them up which can take a few days.
Saying this I have since found out that I have a suspect water pump which is causing the loss which I am having replaced shortly. Still leaving this stuff in though and I have no worries about using it. Never heard of the other one though.

Rgds

Wayne

Ancient post I know - but to add my tuppence, ever tried cleaning up the cooling system when you eventually have no option but to pull the head, not pretty after adding the K-Seal.

murphyv310 · 13th July 2012, 22:09

K Seal has its uses, no way do you need a full bottle, 33% is enough, I would say its an insurance more than anything. I have a very reliable contact in the trade and he says if the product blocks radiators and heater matrix its purely to do with mixing incompatible antifreeze then adding k seal, a recipe for disaster.

Jules · 13th July 2012, 22:20

Should be called K cement

VVC-Geeza · 13th July 2012, 22:30

It took me 6-8 coolant system flushes before I saw the last flek of copper floating in the header tank.

Never again.

kaiser · 14th July 2012, 05:16

The cure with Wondarweld has left no mess anywhere, the engine was clean.

The comments form other users regarding other products must be for their own account.

The use and results I have achieved the way I describe it has been astounding and certainly, in my case, worthwhile.

murphyv310 · 21st July 2012, 16:19

Hi.
What I have heard is that if OAT and other antifreeze is in the system adding K Seal can cause the gelling effect from mixing dissimilar antifreeze to be quite serious. My system had been thoroughly cleaned and flushed out. So far no problems and that is with 1/3 of a bottle!

13th July 2012, 22:09	#116
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	K Seal has its uses, no way do you need a full bottle, 33% is enough, I would say its an insurance more than anything. I have a very reliable contact in the trade and he says if the product blocks radiators and heater matrix its purely to do with mixing incompatible antifreeze then adding k seal, a recipe for disaster. __________________ Cheers from Trevor MM0KJJ

13th July 2012, 22:20	#117
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Should be called K cement __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

13th July 2012, 22:30	#118
VVC-Geeza This is my second home 2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009 Location: Derby. Posts: 8,756 Thanks: 2,022 Thanked 1,016 Times in 739 Posts	It took me 6-8 coolant system flushes before I saw the last flek of copper floating in the header tank. Never again. __________________

21st July 2012, 16:19	#120
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	Hi. What I have heard is that if OAT and other antifreeze is in the system adding K Seal can cause the gelling effect from mixing dissimilar antifreeze to be quite serious. My system had been thoroughly cleaned and flushed out. So far no problems and that is with 1/3 of a bottle! __________________ Cheers from Trevor MM0KJJ

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27th October 2010, 19:32	#111
teethgrinder Avid contributor 75 Club SE 1.8, 414Si Join Date: Nov 2008 Location: Prudhoe Posts: 124 Thanks: 0 Thanked 0 Times in 0 Posts	K-seal...is useful but not in the intended way! My 1.8K was losing coolant. Not much, but enough to be a worry, so in went some K-seal. It seemed to cure the leak for a while, but the other day the temp went up to 2/3. The initial leak was a seriously tiny hairline crack on the top radiator fin next to the inlet hose traced by spotting the tiny coper flecks from the K-seal. This was 'fixed' with JB Weld. However, there was still a leak. This turned out to be one of the brass inserts in the stat housing had come out somehow. New stat, o-rings and a longer bolt and nyloc nut seems to have done the trick. Robin

22nd December 2010, 10:51	#112
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	Just an update! Nothing to see here, - pass on!:xmas-smiley-031: Everything works 100%.

11th February 2012, 07:46	#114
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	Just a final up-date. The engine is now being re-built. The aux belt frayed and lodged itself under the cambelt. The result has been 16 bent valves, one smashed piston and a cracked liner. Just to emphazise the point, the failure is not related to the cure affected here originally. For what it is worth it might still be running had nothing happened to the cam belt. I will thus conclude that the cure has been successful, and the distance covered since the cure is about 40000km. The engine rebuilt is on hold awaiting Gatekeepers arrival from the UK with new head bolts. The previous lot have been re-used twice. I doubt it is necessary, and I will carefully compare the new and old, but for the sake of a relatively modest amount, I will not take the chance! The re-building can be followed here:http://www.the75andztclub.co.uk/foru...t=engine+cured

14th July 2012, 05:16	#119
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	The cure with Wondarweld has left no mess anywhere, the engine was clean. The comments form other users regarding other products must be for their own account. The use and results I have achieved the way I describe it has been astounding and certainly, in my case, worthwhile.