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sump oil pan replacing


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#1 LOVIUS

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Posted 06 July 2018 - 01:36 PM

Hi all, I got an old 2007 hdi 1.6 diesel.

My sump oil drain thread is barely there and after the last oil change it just kept turning! so I am looking at replacing the sump.

 

The citroen service site says:

Uncouple the exhaust line in order to avoid damage to the front flexible pipe (at the flexible pipe).

 

 

And Haynes says :
Remove the exhaust front pipe as described in chapter 4B.

 

 

I am trying to estimate how hard and long this work will take me..
 
My question is can I just undo the flexible exhaust flexible bolt (red arrow), or is the more to it? do I also have to take out the coolant pipe on the other side (blue arrow).
I only got axle stands so would be under the thing on my back...
 
Also never having done this before how hard is it to clean the gasket seal?
 
Any advice much appreciated.
 
Attached File  sump_pipes.jpg   291.72KB   0 downloads


#2 discv

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Posted 07 July 2018 - 10:24 AM

The clamp [red arrow] has to be undone. Towards the rear of the car, their are 2 nuts holding the exhaust to the sub frame rear- undo these and you can then move the exhaust from side to side. this helps getting to some sump bolts.

The front down  pipe/cat will almost certainly have to come off. Once the heat shields are out of the way things become clearer.

 

That pipe [blue arrow] will just pull to the side, pay special attention to the twin nut and stud arrangement.

 

There is no gasket, a black RTV silicone is used. Google Pro Seal N80046.

 

At first it seems that the sump will never shift- but by tapping in a series of thin wedges/screwdrivers it will drop off.

 

Whilst there- look very carefully at the mesh filter up inside the oil pickup. Any rubbish trapped there- stop spending money :mellow:  

 

Main tips- no special tools needed, photo everything at every stage, allow plenty of time.

 

My experiences are from a 1.6 Hdi C4 picasso- but I doubt there will be much difference 


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C4 Grand Picasso 1.6 HDi 16V FAP/DPFS 110, -Auto (DV6 - 80kW) (C4) (DT) (2008)

 


#3 LOVIUS

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Posted 11 July 2018 - 11:45 AM

Thanks discv your reply much appreciated,

 

I got a sump wedge tool off ebay to help. and some black Bardahl silicone.

 

Taking off the catalytic converter looks like it will take half .. a day in it's self..

I did have hope I could just remove the first section of the exhaust with the flexible part!

 

 



#4 discv

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Posted 11 July 2018 - 03:31 PM

Getting the cat off is the bulk of the job! But spend the time clearing it out of the way. This will then allow you to take a peek at the lower turbo oil feed union and the tiny oil filter it houses. This in conjunction with the oil strainer pick up filter inspection will give you a warning as to the condition of the injector seals. 

And just a quick thought- do NOT be tempted to undo the big end bearings caps, special tools are required to refit them. And unless the caps are in the right position a con rod through the crankcase is likely.

 

I'd love to see the link to this sump wedge tool.


C4 Grand Picasso 1.6 HDi 16V FAP/DPFS 110, -Auto (DV6 - 80kW) (C4) (DT) (2008)

 


#5 gray

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Posted 12 July 2018 - 07:21 AM

How about getting a helicoil inserted, or tap out the thread to a slightly bigger thread ?  Then get a bigger plug.   Say 14mm to 15mm  or whatever size it is.

(or then fit a helicoil if needed to keep the same size thread)

 

For example:

https://www.amazon.c...77MMBMQ5A4VXX2V


Edited by gray, 12 July 2018 - 07:21 AM.


#6 ChrisGibbard

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Posted 12 July 2018 - 08:35 AM

Getting the cat off is the bulk of the job! But spend the time clearing it out of the way. This will then allow you to take a peek at the lower turbo oil feed union and the tiny oil filter it houses. This in conjunction with the oil strainer pick up filter inspection will give you a warning as to the condition of the injector seals. 

And just a quick thought- do NOT be tempted to undo the big end bearings caps, special tools are required to refit them. And unless the caps are in the right position a con rod through the crankcase is likely.

 

I'd love to see the link to this sump wedge tool.

 

https://www.ebay.co....joAAMXQQANRE5i5

 



#7 ChrisGibbard

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Posted 12 July 2018 - 08:37 AM

Think this might be more useful than a sump wedge tool!

https://www.ebay.co....Q8AAOSwnDZT~B5L



#8 LOVIUS

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Posted 12 July 2018 - 11:42 AM

Yes that the SEALEY TOOL  is what I got. https://www.ebay.co....joAAMXQQANRE5i5

And yes helicoil I start to think it may be much easier way to go...

https://www.ebay.co....Q8AAOSwnDZT~B5L

 

 

If it doesn't work I got all the parts to replace the sump ...