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Old 20-06-2018, 02:03 PM   #41
bidderman1969
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Old 20-06-2018, 02:09 PM   #42
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I'm sorry I can't make head nor tails of that, it's obviously in a tricky spot.

I hope it's sorted cheaply for you.

I've not seen any of the ones listed for Optima that have that gasket in the diagram you posted but that could just be from the info I've got.

Fingers crossed. When's it going in?
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Old 20-06-2018, 02:17 PM   #43
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Old 20-06-2018, 02:18 PM   #44
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I'm beginning to wonder now

In the engine pics it goes front to back under the bits in the pic
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Old 20-06-2018, 02:19 PM   #45
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Old 20-06-2018, 02:41 PM   #46
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See if you can work out if your eGR cooler is like this:



or like this



The first picture doesn't have that gasket. This 2nd one does.

I'm very surprised there is a system that isn't totally closed loop, I've never seen it before.
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Old 20-06-2018, 02:45 PM   #47
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Yeah me too, ��

I don’t know myself which one it is until I take bits and pieces off, may do tomorrow
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Old 04-07-2018, 05:12 PM   #48
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Well, seems to have cured 2 years things now, changed the EGR cooler and the part attached, EGR itself?

Before the mpg was down to between 34 and 38 mixture of long and short journeys, when I got the secondhand part I cleaned it out with Mr Muscle and the flap was moving freely, the garage put my old one back in the boot of the car, when I looked at it, I couldn't move it at all! After a bit I managed to move it but it's not moving freely so I may clean it up and see if I can see where/and if any coolant was going out of that.

I did quite a long trip from base to Luton airport and back and retuned 46.4 mpg, so happy with that!

I did the "green machine hydrogen carbon cleaning", before I changed this EGR stuff and said I'd know if it worked as it was being taken apart, and although the engine sounds a little quieter, it never cleaned the EGR out at all
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Old 04-07-2018, 07:55 PM   #49
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Thats the problem with engine cleans, they just cannot get to the areas where carbon builds up. They only way to get rid of it is to strip it all down and and scrub.
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Old 04-07-2018, 10:53 PM   #50
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Bit like the companies that advertise that their miracle product works on the intake valves of DI engines.

I'm sure it does.

As for cleaning an EGR, I've used oven cleaner before. Worked for me.
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