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Oil breather installation. #1647640
03/01/2021 09:05
03/01/2021 09:05
Joined: May 2018
Posts: 941
born in Italy I live in German...
carmine Online content OP
club member 1915
carmine  Online Content OP
club member 1915
Enjoying the ride

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born in Italy I live in German...
hello everyone and a Happy New Year. I wanted to have some information about the assembly of an oil vapor filter, it is not difficult but I did not understand if I should remove the non-return valve fig.7? i will put a cap in the intake manifold this is okey but on the side of the vapor tank, do i have to leave it open anyway? one last thing, what diameter is the pipe where to insert the filter? thanks.

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Last edited by carmine; 03/01/2021 17:29.
Re: Oil breather installation. [Re: carmine] #1647653
04/01/2021 04:12
04/01/2021 04:12
Joined: Jun 2007
Posts: 4,596
Malaysia..Glasgow at heart
Kelv27 Offline
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Kelv27  Offline
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Joined: Jun 2007
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Malaysia..Glasgow at heart
You should leave the connection between intake manifold and the tank as the vacuum helps draw out the oil from the breather outlet on the cam cover (No.2).
I have tried set ups involving the disconnection to the No.3 pipe before...and can't say that there is any improvements to performance. If you are getting excessive oil in your intake, I would check the valve (No.7) first. If you can blow through it, the valve needs replacing....and also check the health of the engine or the viscosity of oil you are using.

Re: Oil breather installation. [Re: carmine] #1647654
04/01/2021 08:43
04/01/2021 08:43
Joined: May 2018
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carmine Online content OP
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carmine  Online Content OP
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thanks kelv27.

Re: Oil breather installation. [Re: carmine] #1647655
04/01/2021 08:56
04/01/2021 08:56
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i am trying to build my own custom SIP. i try to eliminate some input if possible, like for example the tube in question by adding a filter. I only have the EBV pipe and the petrol vapor pipe left. I think I can cancel the EVB pipe, because I have a manual boost controller, I don't know if the injector light could appear, as far as the petrol vapor pipe is concerned, you can perhaps also put them 1 filter?


Re: Oil breather installation. [Re: carmine] #1647697
05/01/2021 10:06
05/01/2021 10:06
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Malaysia..Glasgow at heart
Kelv27 Offline
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Malaysia..Glasgow at heart
You can put a filter...I've done that before in the past. But I get a feeling that its more difficult for the engine to get rid of its oil vapors that way. I believe that when the turbo spools, it helps pull the vapors from the catch tank. I would keep set ups as close as possible to stock...but of course that is entirely up to you.

Re: Oil breather installation. [Re: carmine] #1647699
05/01/2021 13:17
05/01/2021 13:17
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carmine Online content OP
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carmine  Online Content OP
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Thanks for the reply. I think you are right, I will leave the original configuration, but I will check the valve (n.7) in case it does not work properly.

Re: Oil breather installation. [Re: carmine] #1649551
22/03/2021 15:10
22/03/2021 15:10
Joined: Feb 2006
Posts: 5,390
Essex
Trappy Offline
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Essex
Originally Posted by carmine
hello everyone and a Happy New Year. I wanted to have some information about the assembly of an oil vapor filter, it is not difficult but I did not understand if I should remove the non-return valve fig.7? i will put a cap in the intake manifold this is okey but on the side of the vapor tank, do i have to leave it open anyway? one last thing, what diameter is the pipe where to insert the filter? thanks.


Carmine, where did you find that drawing of the oil breather system?

Last edited by Trappy; 22/03/2021 15:10.

F****** b****** thing...
Re: Oil breather installation. [Re: carmine] #1649552
22/03/2021 15:41
22/03/2021 15:41
Joined: May 2018
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carmine Online content OP
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carmine  Online Content OP
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Hello. It's a picture I found on the internet, and I drew it in red, if I find it I'll send you the link.

Re: Oil breather installation. [Re: carmine] #1649553
22/03/2021 15:49
22/03/2021 15:49
Joined: May 2018
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born in Italy I live in German...
carmine Online content OP
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https://www.fiatcoupeclub.org/forum/ubbthreads.php?ubb=showflat&Number=63410


i found it on google but in the end it is a forum thread. Anyway, just write on google photos: "fiat coupe oil breather" and it comes out.

Re: Oil breather installation. [Re: carmine] #1649554
22/03/2021 15:54
22/03/2021 15:54
Joined: May 2018
Posts: 941
born in Italy I live in German...
carmine Online content OP
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carmine  Online Content OP
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Posts: 941
born in Italy I live in German...
as of today I am still looking for a valve n.7. On ebay, there are many non-oem possibilities, but I don't know if they are correct.

Re: Oil breather installation. [Re: carmine] #1649557
22/03/2021 17:50
22/03/2021 17:50
Joined: Apr 2010
Posts: 1,184
norwich, norfolk
adam16vt Offline
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norwich, norfolk
Originally Posted by carmine
as of today I am still looking for a valve n.7. On ebay, there are many non-oem possibilities, but I don't know if they are correct.


Any kind of 8mm non return valve will do the job

Re: Oil breather installation. [Re: carmine] #1649560
22/03/2021 18:14
22/03/2021 18:14
Joined: May 2018
Posts: 941
born in Italy I live in German...
carmine Online content OP
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carmine  Online Content OP
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Posts: 941
born in Italy I live in German...
Thanks thumb

Re: Oil breather installation. [Re: carmine] #1650130
15/04/2021 21:18
15/04/2021 21:18
Joined: Aug 2007
Posts: 8,057
Southsea
G
Gunzi Offline
Club member 189, Former Club President
Gunzi  Offline
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Je suis un Coupé
G

Joined: Aug 2007
Posts: 8,057
Southsea
you can remove pipe 4, cut it, bung the end which connects to the inlet 'elephants trunk' and put a filter on the end from the oil catch tank. this stops the oil recirculating back into the intake system.

I ran this set up for several years. Psycologically it felt better knowing no oil vapour was being mixed in the engine, no idea if it made a real difference though.

The side effect was the oil vapour has to go somewhere, all over the engine bay.


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