Injector seats - VW 1.6tdi

[Mildlyinterestd]

Morning all,

Just replacing an injector clamp on a 1.6tdi Golf, got the injectors out to find the seats have seemingly been damaged.

Is this irreparable? Tempted to give it a clean, new copper seal and back in. Is the wear on the seat too great?

Any advice appreciated.

[Smint]

Look to me like the seal was leaking and blow by has burnt through as it sought escape, was the injector nozzle damaged.

I don't know if the injector seats are replaceable in a machine shop or if the only cure is a new head, either is not going to be quick or a cheap fix.
A new seal might fix it for a while, what to do depends on how long you intend to keep the vehicle.
If you decide on a new seal fix i'd be inclined to shove an endoscope up the oil drain plug after overnight draining and inspect the oil pick up strainer, presumably there was evidence of carbonnised oil around that injector?

[stevieturbo]

Mildlyinterestd said:

Morning all,

Just replacing an injector clamp on a 1.6tdi Golf, got the injectors out to find the seats have seemingly been damaged.

Is this irreparable? Tempted to give it a clean, new copper seal and back in. Is the wear on the seat too great?

Any advice appreciated.

It is standard practice to recut seats before fitting a new copper seal.

eg. one of many

https://www.ebay.co.uk/itm/388683211566

[E-bmw]

^^^^ Wot 'e said.

Done it myself with a kit the same as that, however those seats do look pretty bad!

If you do re-cut them make the best way to make sure no swarf gets into the cylinder is either VERY carefully/slowly with grease on the cutting face which you clean off regularly. Or with an air-line blowing into the glow plug hole, which is my preferred method, though I have done both.