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df1

Member Since: 06 Aug 2011
Location: Ireland
Posts: 221

Provent fitting woo's

I fitted the provent to my td5 about a month ago.
Did 2 trips of about 6 hours driving, it burnt about 1 litre of oil each time.

Never had to top up once between oil changes since new.

Thought it might be my turbo on the way out but there's very little play in the turbine, I removed the provent today and did a 4 hour round trip, not a tint of oil burned.

When I fitted the provent I brazed a pipe into the turbo return pipe for the return from the provent, could this be an issue ?

Really has me baffled, went from not using a tint of oil to drinking it back to not using a tint.

18th May 2014 5:42pm

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey

Was the filter and the inside of the Provent housing wet with oil? It sounds on the face of it that you have managed to rig up some form of syphon rather than a filter. I am unaware of the setup on a TD5 but on my Puma I effectively in laymans terms cut the crankcase breather and fitted the Provent in series. Where did your crankcase breather return feed to before you brazed it into the turbo return pipe?

***EDIT***

A couple of TD5 owners here have bought them and presumably fitted them too. Drop them a 'pm' and ask how they fitted theirs.

http://www.defender2.net/forum/topic26798.html?highlight=provent If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

18th May 2014 6:50pm

df1

Member Since: 06 Aug 2011
Location: Ireland
Posts: 221

My Worthing May not be the best,

I simply disconnected the original breather pipe where it fits onto the valve on inlet pipe just after turbo.
Connected that to inlet on provent, then put a new pipe from outlet on provent to valve where breather pipe was previously.
Effectively just putting the provent inline on original breather pipe.

I then connected the small pipe out of the bottom of the provent to the oil return pipe from the turbo.

Just can't figure out what's wrong.

18th May 2014 7:16pm

LR90XS2011

Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3648

2011 Defender 90 Puma 2.4 XS CSW Galway Green

I think the problem is where you have the oil return from the provent, as it allows the vacuum from the engine to draw oil from the turbo return. The drain from any seperator should go to a point below the level of the sump oil. An alternative is just to have it going to a sealed catch tank. Also dont forget that the oil return pipe from the turbo may still actually be under pressure from the oil supply to the turbo.

as an aside I have now fitted a 200tdi seperator to my puma to see if actually catchs anything, I will let everyone know how it goes. DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

18th May 2014 7:28pm

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

Just blank off the small pipe at the bottom of the Provent there's no need to return feed the oil as they don't need draining very often anyway. I think your issue lies there.

RockJaw wrote:
We don't drain ours more than once every 20k-30k (kms that is, not miles)

If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

18th May 2014 8:07pm

df1

Member Since: 06 Aug 2011
Location: Ireland
Posts: 221

Thanks for the help.

I'll try fitting it without the return in the morning.

18th May 2014 8:20pm

LR90XS2011

Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3648

Im fairly sure as Mal and I both have suggested that will be your fix. DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

19th May 2014 5:25am

Steve B

Member Since: 22 May 2009
Location: Warwickshire
Posts: 587

K9F wrote:
Just blank off the small pipe at the bottom of the Provent there's no need to return feed the oil as they don't need draining very often anyway. I think your issue lies there.

RockJaw wrote:
We don't drain ours more than once every 20k-30k (kms that is, not miles)

I have done this, I wouldn't want to use this oil again anyway and as Mal says there is very little.

I believe the Provent manufacturers suggest a one way valve?

Steve

19th May 2014 7:10pm

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

Due to the close location to the turbo I fitted a steel braided drain pipe to my Provent and my one way valve is an M10 bolt with a small jubillee clip at the end of it. With the mileage I cover it'll be a few years before I'll have to drain it anyway.

If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

19th May 2014 9:13pm

derbywill

Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 559

How have others mounted there provent on a Td5? Mines a XS and abit tight for room.
Regards
Will 2005 90 XS
1954 86'' Series 1 tilt
1968 88” 2A 200tdi
2002 110 Hardtop

20th May 2014 6:15am

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

Derbywill,

Mine's an XS albeit a 2.4 but it was damn tight for fitting on mine too. Maybe you could utilise my idea of a bracket and 'p' clip arrangement and adapt it for your TD5 perhaps?

Page 5.....

http://www.defender2.net/forum/topic26798-60.html If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

20th May 2014 8:44am

ibexman

Member Since: 13 Dec 2008
Location: Essex
Posts: 2947

Can someone post up plumbing diagrams ?

17th Jan 2015 1:54pm

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

Have a look at the linked thread there's some photos on there that will give you a guide. There's only two pipes to connect you basically in layman's terms cut the rocker breather pipe and fit the Provent in series blanking off the oil return pipe outlet at the bottom of the Provent.

If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

17th Jan 2015 2:11pm

ibexman

Member Since: 13 Dec 2008
Location: Essex
Posts: 2947

Cheers Mal

17th Jan 2015 2:16pm

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

Take a note of the TD5 issue above, no need to connect the oil return. You should have loads of room too which is a bonus.

I know mine's a Puma but you can see clearly the rocker breather connected to the inlet of the Provent.

Click image to enlarge

The outlet depicted as the lower pipe with the blue 90 degree union is the outlet which is basically the other half of the cut breather pipe. If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

17th Jan 2015 2:22pm

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