Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangerous ?

[Clio 2 RS Minicup]

Hello everybody

In first sorry for my bad English it is not my native and natural langage but I try ^^ and I hope that you will understand me in spite of that (It will be better for me if you could understand the French language lol)

So , this topic is about my "Clio 2 RS1" or "Clio 2 RS phase1" or "Clio 2 RS mk1" like you say in the UK, and its engine F4R730 precisly

My last work in the engine is to eliminate all the returns of oil in the engine and the admission air

Already I have made this for the return of oil in the admission air (under the case "buttefly) by diverting the circuit towards a oil-catch tank and by blocking the entry under the case butterfly




Now I could like to block the small hole in the decanter of oil (number 1 in the photo) like made some owners of Clio 2 RS1, but before, because i'm not sure, I shall wish to know if it's dangerous or not for the engine for average or long term

I suppose this little hole is used for the return of oil towards the plenum but also to let escape the pressure of the engine

And thus I ask the question to know if by blocking this small hole, I am not going to make increase the pressure at the top engine and thus destroy faster or be dangerous for parts and joints "spy" of the engine for examples

To resume, if I block this small hole (number 1), the only exit (number 2) towards the oil-catch tank will be enought to evacuate the full oil and pressure and not be dangerous for the engine?



Thanks for all informations about that

 

[stevescort172]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

Why would you want to block those holes up??

i think you should leave it as its been designed to run.

steve

 

[Cup_Phil]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

Yes you can block that hole up without any problems

 

[JackJack]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

Yes you can block that hole up without any problems

This.

 

[Dan519]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

1 is for positive crankcase ventilation. This means the oil vapours are sucked into the engine through this hole. There is no issue from blocking this as long as the main outlet (number 2) is unrestricted

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

Why would you want to block those holes up??

i think you should leave it as its been designed to run.

steve

????
I said that in the 1st message, you dont understand my bad English ? ^^

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

1 is for positive crankcase ventilation.

I know the use of this little hole, it is not my question ;-)

This means the oil vapours are sucked into the engine through this hole. There is no issue from blocking this as long as the main outlet (number 2) is unrestricted

Sorry I dont understand ^^
do you want to say that I can block this little hole without problems for the engine because it have the outlet number 2 ?
Outlet number 2 which is unrestricted in my mountage because like I said it have that

 

[mr.pink87]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

What happens if you leave the small hole open when running ITBs? Is it spitting oil out there?

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

What happens if you leave the small hole open when running ITBs? Is it spitting oil out there?

what is it the small hole you speak ?
this in zone 1 in my picture in the 1st message ?

 

[mr.pink87]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

Yes.

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

OMG it's sure for me now I write a bad English langage because I explained that in my first message ^^ lol

So, on the engine of a Clio 2 RS phase 1 there are 2 return of oil :

1 by the outlet behind the decanter of oil (zone 2 in my picture in the 1st message) which return in the admission air under the case butterfly that I diverted towards a oil-catch tank and blocked the entry under the case butterfly

and

1 by the small hole (zone 1 of my picture in the 1st message) which go in the plenum

And it's on this that I ask if I can block this small hole to avoid thus returns of oil passing by the plenum without dangers for the engine

 

[john182rs]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

What happens if you leave the small hole open when running ITBs? Is it spitting oil out there?

I left mine not blocked for ages and it was going through oil quickly and every time I opened my bonnet it was covering the underside of my bonnet.

Blocked and no problems since.

 

[mr.pink87]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

I left mine not blocked for ages and it was going through oil quickly and every time I opened my bonnet it was covering the underside of my bonnet.

Blocked and no problems since.

What did you use for blocking? Self tapper?

 

[Cup_Phil]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

KumKum - You're getting confused reading replies. Straight forward answer - you can block hole 1 with no issues at all.

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

KumKum - You're getting confused reading replies. Straight forward answer - you can block hole 1 with no issues at all.

Ok that is direct answer and I understand perfectly !! :cheers:

Thus let's go now ^^ I am going to unsettle the decanter to block the small hole

I would make that by a small weld metal doubtless

 

[DannyR]

Small weld is best way to block hole 1 and then smooth down so inlet sits flush and flat

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

yop :clap:

Tomorrow I shall visit my friend boilermaker to block cleanly the small hole ^^

Thus tonight I prepared the things for that





You see in the next photo the joint dough which was in stock on the decanter of oil
I am going to clean because I bought the metalique joint that I prefer





And the same decanter of oil after the cleaning




To be continued tomorrow

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

So I remounted the decanter of oil with its small hole blocked by welds (I will post photos of that later) BUT I have little (I hope) problem :S

I cannot screw saw it of the decanter noted in the red zone

All others screws are good but not this...

The hole of this screw is "falsified" and too big (it is one of big problems on the engine of my Clio 2 RS1... do you knwo that you too in your Clio 2 RS ph1 ?) Grrrr !!

I try to made the hole and the form of screw for a bigger screw (size 8 and the stock 6) but it's too difficult and not possible for me...

Is it dangerous for my engine and the lack of oil for example to remount the engine anf the decanter of oil without only this one screw ?

 

[DannyR]

You should be fine, mine once had 3 missing!

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

You should be fine, mine once had 3 missing!

What ?
OMG !! LOL
And do you have problems like leak of oil or others ?

 

[Clio 2 RS Minicup]

Re: Block the small hole of return of oil in the decanter of oil : Good, Bad, Dangero

It's over, I remounted all that this afternoon

To see story and photos of that go in the topic of my Clio 2 mk1 ;-) ---> http://www.cliosport.net/forum/show...Clio-2-RS-ph1-living-in-the-South-of-France-)