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Old 10-01-2017, 09:56   #1 (permalink)
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Head Gasket?

Looks like a blown head gasket.
What kid do you guys recommend for a 1.4?
is it worth getting the multi layered version?
thanks


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Last edited by mallorcaben; 10-01-2017 at 10:04. Reason: correct link to photo
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Old 10-01-2017, 11:25   #2 (permalink)
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It's always difficult to be certain when there is only a small quantity of emulsion evident - it is often said that some emulsion can appear on the filler cap in cold weather from condensation in the engine. However, after replacing the head gasket in mine 4 years ago, I have never found any trace of condensation or emulsion in the filler cap (neither have I had to top up the coolant at all).

On balance, I would say that you are probably correct, and the head gasket has failed and will need replacing before it fails more seriously.

There are three basic options for a new head gasket:

An original factory fit type SLS/elastomer,

The first type multi-layer-steel (MLS) with a separate shim, or

The Chinese 6-layer MLS gasket (as used in the redesigned chinese version of the engine.

It isn't really possible to recommend which type of gasket to use until the head is off - you need to ensure that the cylinder liners are standing proud of the block face by at least a couple of thou to reliably use the multi-layer-steel type of gasket (although a well respected member of another forum has successfully used the MLS with its separate shim on engines with less stand-proud than that suggesting that as long as there is some liner protrusion and the liners all measure the same and the protusion is even all round, the MLS can be safely used).

However, in general, it is usually advised that if the liner heights are very small (or flush with the block) or are uneven, the standard SLS elastomer gasket is more likely to be reliable. However, there is no specific evidence to support this view.

Whatever gasket you get, I would advise against buying any cheaper unbranded ones (there are loads of cheap inferior ones out there - especialy on eBay) - go for a reputable make such as Payen, FAI or Victor Reinz.

If your liners are at least 2 thou protrusion and even, I would recommend the six-layer MLS Chinese type gasket available from XPart under part number ZUA000530 which seems very reliable (I have had one in my ZR120 for 4 years and over 20000 miles now). However, it is very expensive (at over 200) - XPart supply it as part of a kit which includes higher tensile long bolts (which have a different tightening sequence from the original ones) and a stiffer lower oil rail. You would probably only wish to spend so much if you are planning on keeping the car for a considerable time.
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