Technical Head gasket

[Pandarus]

Hi all

I am starting to look at Cinqs as a potential purchase - doing a bit of research I notice that the head gasket is a common problem.

How do you know if it is on it's way out?

Cheers

MARTIN

 

[balidey]

Water loss.
Oil and water mixing - either smelly water in header tank or a mayonaise type deposit in the oil system.
Possible compression loss (needs a compression tester)
Poor starting
One wheel at each corner

 

[fingers99]

There are only two sure ways of telling, a compression test or a coolant pressurisation test. Otherwise as above plus lumpy idle and difficult starting.

 

[Italian Coke Can]

Mine had a buggered HG.

Would drink a header tanks worth of coolant every two tanks. (when giving the beans)

At the same time i filled the coolant up, i'd put a couple of hundred mills of oil in. Not had to top it up once in 1,500miles of post rebuild! :slayer:

Slightly lumpy idle.

Ask how much oil / coolant it needs regulary and have a look for scum in the header tank.

 

[Fivehundred]

Get it tested with a leak detector. Uses a blue fluid that changes to yellow if there are exhaust gases in the coolant.

 

[Diwiak]

Hi ladz, wasn't here for a while,

When I open valve-rocker(?) cover(where the fresh engine oil is going in)while engine is running there's some pressure running out-is this normal, or could it be head gasket failure?? Water, oil, everything's fine, engine running with no problems, taking only petrol.
And there's only small pressure in coolant sump while hot.

How long could engine run if there's bad gasket-what could happen later???

Thanks.

btw. fuel cons. around 7.2 ltr/100kms - city/motorways/reg. roads mixed

 

[Diwiak]

One wheel at each corner

LOL, is out there some cinq without HG troubles.. ??!!

 

[custard]

LOL, is out there some cinq without HG troubles.. ??!!

both of mine never had problems