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Clio oops I did it again... Adey's Clio 200 EDC

I think ive had a bit of a weep from the oil return pipe on the turbo. I can see some staining on the manifold. That and the car stinks when pulling up at junctions. I've had it on and off a few times and not replaced the gasket so decided to get it swapped out. Autodoc provided the smallest gasket in a huge box to justify the postage cost I'm sure. With the intake pipe work out of the way ot wasn't to bad to get too. Easier than on a meg anyway. Replaced in under an hour, in the dark by candle light. Upon checking I found the joint between the DP and front pipe to be blowing a lot, not sure thats helping with the cabin smell. That's the weekends job now...

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Vx220 with Astra VXR turbos used to love leaking on the return, some good as gold others even with OEM gasket a pita

Used to be a diesel turbo gasket that had a crush copper ring and soft metal surround which sealed great....maybe something like that if leaks again
 
The exhaust had started to sound a little louder recently, that and it stank of fumes when pulling up at junctions. I originally thought it was the turbo oil drain gasket dripping oil and then burning off, but found the downpipe to front pipe was blowing when replacing that. Got underneath the car today to check it out.



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ps, phone used for some of the recording, the sound and picture quality are pants when using the front facing cam
 
Yep like @cossie1 said them style of gaskets are terrible.

Oem steel gasket no good? Your still on o.e cat back arent you?

I am on the OE cat back, but that starts mid way down the car. These have 2 cats from factory. The leak was between the downpipe and front pipe.

I will get some metal ones on order ready for the inevitable (y)
 
I spent a little time today working on closing off some of the gaps around the rad pack, intercooler and creating a duct to feed cold air up to the air filter. Haven't finished up yet as rain has halted play but there should be an improvement. I've also modified the fog light housing so I can cable tie the ducting to it and cut out the bumper, PMT style, with a few tek screws and some 90 degree brackets bent to suit. Should be discreet and only noticed if you are looking for it but will feed some cold air directly to the air filter (y) To get enough clearance for the 100mm duct I've had to relocate the horn and a vacuum pump. Strangely the car has a vacuum assistance pump on the brake servo pipework, not seen that on a petrol car before.

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Just a thought. Maybe the issue is the servo not liking boost pressure being fed into it??? Have diesels lost their vac pumps since they got throttles??? Maybe there isn't enough high vacuum to make it work well enough. Why did we end up with all that stuff, Rather than sizing the hydraulics properly.
 
Just a thought. Maybe the issue is the servo not liking boost pressure being fed into it??? Have diesels lost their vac pumps since they got throttles??? Maybe there isn't enough high vacuum to make it work well enough. Why did we end up with all that stuff, Rather than sizing the hydraulics properly.
In my mind its to do with the efficiency side of things mixed with the EDC gearbox. Maybe there are times where the engine isn't producing enough vacuum, assuming when its creating a vac it is engine breaking more and being less efficient? No idea really, I had to google the part when I found it, I've never heard it running.
 
Yep could be. Is it a manual box with auto shifting or a jazzed up auto? Auto's tend to having one way clutches, so no engine braking on overrun, this is because the lift off braking of a big V8 is a one way trip to hospital. It means you can't wind the motor up to high revs on overrun which would generate high vacuum. Perhaps this cuts in if vac is not high enough when brakes pressed.... Yet more complexity. I think it's cheaper for manufacturers to add tech rather than get it right, it sounds daft, but I'm convinced it's true.
 
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