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Discussion Starter #1 (Edited)
Hi there..

Having a Mazda 3 1.6 diesel, the PSA engine.
Today I began removing the engine cover, since I wanted to change the cambelt. A nice job to do when you are bored in your holiday :eek:)

A surprised where hidden under the cover.
THe last #3 and #4 fuel injectors are smudged in some brown sticky stuff.
It looks exactly as the former much used brown liquid gasket.
But is definitely not something that has been put there.
I must have had originated from the engine in some way.
The brown substance turns into black liquorice like, that hardens after it have been running down the side of the engine.

What is this, and what is the reason for this ?
I of course suspect a leakage from the injector, but it should only produce diesel fuel. This is not diesel.

https://onedrive.live.com/embed?cid=7D94CF28ECA62333&resid=7D94CF28ECA62333%21109&authkey=ABumvqSyA8BW9Sg
 

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Discussion Starter #2
Well, cannot say I got much response on this one.
But finally I took it to a Bosch specialist repair shop.

It turns out this is a common known problem for these engines.
"we get one every week" ...he told me.

The problem is the fuel injector getting lose in the cylinderhead.
This causes sot and residual fuel to get pressed outside the combustionchamber.
Essentially there were a leakage between the injector and cylinderhead.

The cost: a new injector and flame gasket, and 3 working hours.
The injector was worn and had got an uneven surface towards the gasket.
 

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sorry not on here mch put it is the compression seals at the bottom of the injectors cause this problem

always remember citreon/peugeot/fiat use the same engine known as the hdi to them and the tdci to ford parts are always cheaper using the 3 above :thumb:

even quicko at trafford park have been have now started selling all the psa parts

Plus it is a Peugeot forum primarily.
 
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