Leak?

67Rob · Jun 1, 2015

Over the past 4 months I've had to top up coolant level by approx 2.5 litres.

There's no water in oil / oil in water and can't find a leak anywhere so has anyone else experienced this?

TAKdriver · Jun 1, 2015

67Rob said:
Over the past 4 months I've had to top up coolant level by approx 2.5 litres.

There's no water in oil / oil in water and can't find a leak anywhere so has anyone else experienced this?

Yes....the same and I can't find a leak . If you find the answer post it on here !
I've checked ( I think) all the usual suspects : have had the rad off and checked. I've just accepted that tha's how it is !

Datatek · Jun 1, 2015

Hairline crack in the expansion tank?

67Rob · Jun 1, 2015

Datatek said:
Hairline crack in the expansion tank?

I'll have a look. Will it be very apparant if there is a hairline crack?

Datatek · Jun 1, 2015

67Rob said:
I'll have a look. Will it be very apparant if there is a hairline crack?

Could be hard to see, just weeping under pressure.

67Rob · Jun 1, 2015

Datatek said:
Could be hard to see, just weeping under pressure.

Ok, will replace. New aftermarket or original?

Datatek · Jun 1, 2015

67Rob said:
Ok, will replace. New aftermarket or original?

That's a bit drastic

I'd get it off and go over it with a strong light and a magnifying glass, a crack will show up as a very fine dark line or spot where the coolant has got into the plastic.

67Rob · Jun 1, 2015

Datatek said:
That's a bit drastic I'd get it off and go over it with a strong light and a magnifying glass, a crack will show up as a very fine dark line or spot where the coolant has got into the plastic.

OK, will do.

biketeacherdave · Jun 1, 2015

yep chased mine for ages then kept finding water leaks only under pressure sometimes no leaks but the next day water under the car so after finnally stopping all the leaks my cooling system was pressurising i bit the bullet and pulled the heads even after doing a sniff test which said no hg problems i found the trouble

head gasket failure you mite be lucky could be the valley gasket weeping but i dont think so

67Rob · Jun 1, 2015

biketeacherdave said:
yep chased mine for ages then kept finding water leaks only under pressure sometimes no leaks but the next day water under the car so after finnally stopping all the leaks my cooling system was pressurising i bit the bullet and pulled the heads even after doing a sniff test which said no hg problems i found the trouble

head gasket failure you mite be lucky could be the valley gasket weeping but i dont think so

Haven't found any water under the car in 4 months of ownership. Hope it isn't anything to do with the heads as the engine is a beaut....

TAKdriver · Jun 1, 2015

biketeacherdave said:
yep chased mine for ages then kept finding water leaks only under pressure sometimes no leaks but the next day water under the car so after finnally stopping all the leaks my cooling system was pressurising i bit the bullet and pulled the heads even after doing a sniff test which said no hg problems i found the trouble

head gasket failure you mite be lucky could be the valley gasket weeping but i dont think so

That would inevitable mean water in the oil. Consistently there is none. Not trusting my own judgement I put it down to a good local Idy to check. They say no head/gasket/block problems .
I have also looked for signs of water under expansion tank but haven't found any. That's not to say it's not the cause. Check has been superficial and visual only.

biketeacherdave · Jun 1, 2015

i had fluro dye in the cooling system then i found my engine oil fluresing. opps

Leak?

67Rob

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67Rob

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67Rob

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