• The Forums are now open to new registrations, adverts are also being de-tuned.

EGR valve faults

Kerabo

Active Member
Joined
May 20, 2018
Messages
457
Location
Spalding Lincs
Car
2006 C220 Estate
image.jpeg image.jpeg I was just working on a mates E220 2005. EGR warning was on. A valve is close to £280 so had it off and a look at it.
Well the plastic cover comes of easy but be careful as its brittle and inside oh what a mess.
See the before and after pics. I think you could nealy do this in place.
All ok now
Ken
 
What did you use to clean it?

I took a lot out with a screwdriver and then Carb cleaner.
The big question was what to lube it with. I had some graphite spray so it got that in the end. Thought grease would collect carbon.
 
Good to see some one making the effort to clean and continue with the engine as it is intended to be - not just delete it.
You're right re lubricant - if it is seeing exhaust temp then a grease would carbonise. Anti-wear additives in a liquid solution is what will work best.
 
Good to see some one making the effort to clean and continue with the engine as it is intended to be - not just delete it.
You're right re lubricant - if it is seeing exhaust temp then a grease would carbonise. Anti-wear additives in a liquid solution is what will work best.

The strange this was that most EGR valves soot up where the valve is. This one let the carbon in through the shaft spindle. I wasn't expecting to find all that gunge in there.
 
The strange this was that most EGR valves soot up where the valve is. This one let the carbon in through the shaft spindle. I wasn't expecting to find all that gunge in there.

In that situation I'd be tempted to try a high temp grease on the spindle in an attempt to seal it. Any pressure differential could blow it out though. If I did the above, it would be as an experiment with full expectation of having to open it up again if it didn't work as intended.
Wont you be back cleaning it again soon if the spindle continues to leak?
 
In that situation I'd be tempted to try a high temp grease on the spindle in an attempt to seal it. Any pressure differential could blow it out though. If I did the above, it would be as an experiment with full expectation of having to open it up again if it didn't work as intended.
Wont you be back cleaning it again soon if the spindle continues to leak?


Well it's not my vehicle, it belongs to a Mate but I suspect that has never been open in its life. I don't expect to be touching it again at least through a carbon build up.
 
Well it's not my vehicle, it belongs to a Mate but I suspect that has never been open in its life. I don't expect to be touching it again at least through a carbon build up.

Since when did being someone else's stop us having to fix it?!
If it comes back to you and you want to try grease on the spindle - revive this thread and I'll maybe manage to help you with a suitable grease.
 
Since when did being someone else's stop us having to fix it?!
If it comes back to you and you want to try grease on the spindle - revive this thread and I'll maybe manage to help you with a suitable grease.

Thanks for the offer but I am happy with what's been done. I can't see that grease would be ideal. I have some quality copper grease but it going to block up or at least hold any carbon.
I suspect the unit is made from parts that are able to move with little lubrication.

Anyway thanks all for the input and I hope it helps someone save on a new valve.
 

Users who are viewing this thread

Back
Top Bottom