Air in diesel filter

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R8SRGR8
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Air in diesel filter

#1 Post by R8SRGR8 » Fri Sep 11, 2020 12:16 pm

Hi all I have a problem with my Blue snail. (418 TD Diesel tourer) I have to bleed the air out of it every morning at the filter which is easy enough but an absolute pain. I have changed the filter, return pipes, injectors and glow plugs prior to the air in problem so would appreciate any ideas as to what could be causing this. There are no obvious fuel leaks anywhere. In addition, because the car is so slow I am considering an engine change to a K series 1.8 and wondered if those wise men amongst you know what would be involved if I went down this route. I would more likely than not use a donor car for the engine swap. Thanks in anticipation. :D

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GTiJohn
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Re: Air in diesel filter

#2 Post by GTiJohn » Fri Sep 11, 2020 3:14 pm

That's not a small job to contemplate!

There'll be some welding in the engine bay as the engine-end mount is quite different. If you've got a donor then you'll have most bits available so it's possible :D
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RoverRevival
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Re: Air in diesel filter

#3 Post by RoverRevival » Fri Sep 11, 2020 4:44 pm

Honestly, just sell the diesel and buy a petrol one.

I’d run out of fingers before I could list all the bits required to be changed.
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Re: Air in diesel filter

#4 Post by R8SRGR8 » Fri Sep 11, 2020 6:14 pm

Thanks for the comments about the engine swap but in the meantime I still need to use the car so any ideas about the air in the fuel as its frustrating as hell. :cursing

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Re: Air in diesel filter

#5 Post by RoverRevival » Fri Sep 11, 2020 6:18 pm

It can only be one thing, you have a split in the pipe somewhere above fuel tank level.
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220 Coupe turbo K785OAT
218 VVC Cabriolet R220OVR
Mercedes C270 diesel P80CJM
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961tat
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Re: Air in diesel filter

#6 Post by 961tat » Fri Sep 11, 2020 6:33 pm

Have you checked the bleeder on filter housing , sound like pin hole or split somewhere .
You wont like the 1.8 k fuel consumption after having that diesel sipping snail that will do 250k easy that i do know .
Stick with it , you need to Pressure test pipes going to and from filter housing and recheck what as been done , somthings been over looked . :thumbup :thumbup

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Re: Air in diesel filter

#7 Post by 220 GSi turbo » Fri Sep 11, 2020 10:56 pm

Does your car have a priming bulb on the fuel line somewhere near the filter?

I have had to change that part on a couple of Rovers with the L-series diesel engine recently because they had perished with age and were allowing air into the fuel line while the engine was not running.

Exactly the same symptoms as you have been having! The 'genuine' replacement part from Rimmer Bros is around £55, but I found something very similar in Halfords for £8.99 (A 'Laser priming tool') that fits in place of the original and seems to be working well so far :wink3

I am not sure if the Peugeot diesel installation in the R8 has a priming bulb, but it would be worth having a careful look at it if you have one fitted. Give it a good squeeze and see if it appears to be sweating or leaking fuel.

As regards the lack of power, I have never heard any Peugeot or Citroen owners complain of poor performance from their XUD turbo engines, so maybe it would be worth searching online for ways to tweak yours (after checking for blocked air filter, leaking intercooler and pipes etc)
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R8SRGR8
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Re: Air in diesel filter

#8 Post by R8SRGR8 » Sat Sep 12, 2020 5:48 pm

Thanks for the assit guys plenty of useful stuff. I;ll get checking and see what I can sort. Once again thanks. :clapping

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Re: Air in diesel filter

#9 Post by richard moss » Sun Sep 13, 2020 8:45 pm

R8SRGR8 wrote:
Fri Sep 11, 2020 12:16 pm
In addition, because the car is so slow I am considering an engine change to a K series 1.8 and wondered if those wise men amongst you know what would be involved if I went down this route.
I would have thought that fitting an L series out of an R3 200 or HHR 400 would be easier
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Russnp
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Re: Air in diesel filter

#10 Post by Russnp » Sun Sep 13, 2020 9:33 pm

An L series tourer is the vehicle of dreams!
I have a remapped L series ZR absolutely fantastic car so much power and torque and still does well over 50mpg. That would be fantastic in a tourer.
It is much faster than my VVC coupe
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R8SRGR8
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Re: Air in diesel filter

#11 Post by R8SRGR8 » Thu Sep 17, 2020 8:32 pm

The L series diesel seems like a good swop and a lot quieter than my XUD7. Thanks for the info. As far as the air leak is concerned have now sorted it and am embarrassed to say it was simply the top seal on the fuel filter had twisted and got pinched. Hey Ho alls well that ends well new seal fitted and no more air in fuel. Now have a problem with the turbo which is throwing oil into the air intake pipes from the intercooler so I think a serious change is beckoning. Any tips for the L series swop would be greatly appreciated. :clapping

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Re: Air in diesel filter

#12 Post by Russnp » Thu Sep 17, 2020 9:05 pm

You could ring CJL tuning in Spalding a bit far from you but he may be able to do the job for you as he's a rover specialist
98 Rover Coupe VVC
99 MGF VVC
03 ZT 135
03 ZR 115 TD
15 MG3 , partners car

Off the road at present

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Metro Turbo

R8SRGR8
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Re: Air in diesel filter

#13 Post by R8SRGR8 » Sun Oct 11, 2020 4:43 pm

After much researching and thinking with a beer at hand I have finally sorted the oil issue. It turns out that despite the previous person who replaced the turbo saying that all air related items had been cleaned when the new turbo was fitted it turns out that the problem was in the intercooler which was thoroughly clogged with oil and sludge. I have removed this as well as all the air pipes and breather given them a thorough degreasing, wash and dry and refitted to car which is now running great with no apparent oil blowing from the turbo. Job done. Should have done the job myself in the first place. Lesson learned. :clapping

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Re: Air in diesel filter

#14 Post by richard moss » Sun Oct 11, 2020 8:29 pm

You should be able to crank up the boost and fuelling to increase power - there must be Peugeot/Citroen forums that can help with how to do It (it's generally feasible).
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Re: Air in diesel filter

#15 Post by R8SRGR8 » Sun Oct 18, 2020 9:44 am

Thanks for that I'll see what I can find on the citroen/peugeot forums then.

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