Irishrover · Dec 10, 2012

:behindsofa:

Following purchase of the TD4 and previous posts, I decided to strip out the PCV which on removal, found the filter element to be rock solid with crap. I have a BMW one on it's way to me following good advice from Sinvogel.
Whilst removing the top covers however, I noticed what I think is a vacuum pipe with a teepiece fitted and one leg of the tee had been blanked off with a pop rivet !!

I have attached a photo with the tee outlined in yellow...can anyone enlighten me as what-if anything was connected to the blanked off leg.

BlankedteeFreelander.jpg photo by rowleyjohn | Photobucket

Singvogel · Dec 10, 2012

This link to photobucket doesn't work on my gas-powered lap-top.

Can you post it again as a thumbnail using 'manage attachments' ?

SV.

DTO · Dec 10, 2012

NeilTD4 · Dec 10, 2012

On mine there is a pipe going to the end of the ribbed cylinder, which is a vacuum reservoir.

Have a look at this

http://www.landyzone.co.uk/lz/f9/identification-bits-under-bonnet-205094.html

Singvogel · Dec 10, 2012

I'm thinking that is possibly someones pretty crude way of trying to de-activate the EGR.

What I would do would be to replace the T-joint with a little metal peg of the type that comes in the 'bag of bits' from IKEA used to hold up shelves in a cupboard unit.

That stops the solenoid from activating the EGR.

Singvogel.

DTO · Dec 10, 2012

This is the pipe you block off to de-activate the EGR , don't know where the over one go's ?

Davidspect · Dec 10, 2012

I have attached a photo

Do you know how many photos you posted?

biggeeeee · Dec 10, 2012

Davidspect said:
Do you know how many photos you posted?

36 by my reckoning (Nice range Rover)

teddywood1 · Dec 11, 2012

if you start messing with the vacume pipe you will end up with very hard brakes and you will not be able to stop almost on down hill , you will be standing up to stop the car.

chris2000 · Dec 11, 2012

Why does the pipe coming off the T-piece go over the top of the injectors? I don't have any vacuum running past the diesel return pipes. It's like they have used a t-piece to extend the pipe to go somewhere different or via a different route. Where does the other end go?

Irishrover · Dec 11, 2012

Quote:
Originally Posted by Davidspect

Do you know how many photos you posted?

36 by my reckoning (Nice range Rover)

I was in a rush to stick it on Photobucket and forgot to put it in a separate album !!! Glad you liked the Rangie-I sold it after many years of ownership as it was only doing 2000 odd miles a year and was kept in the garage 99% of the time !!! The other pic's are of the EAS valve block poppets on the Rangie which I posted on the Rangie forum. You will see there are none of Er Indoors on there :hysterically_laughi

chris2000 said:
Why does the pipe coming off the T-piece go over the top of the injectors? I don't have any vacuum running past the diesel return pipes. It's like they have used a t-piece to extend the pipe to go somewhere different or via a different route. Where does the other end go?

I didn't get chance yesterday to follow the pipe as it started to get dark, it goes round the back of the oil filler neck. I will do a more detailed search today and update. The teepiece will be knackered anyway if I have to reconnect the pipe as it's plastic and removal of the pop rivet will probably wreck it. I will measure the size of the hose and get a new one before I reconnect the pipe.

Thanks for all the input Guys....

Irishrover · Dec 11, 2012

chris2000 said:
Why does the pipe coming off the T-piece go over the top of the injectors? I don't have any vacuum running past the diesel return pipes. It's like they have used a t-piece to extend the pipe to go somewhere different or via a different route. Where does the other end go?

:behindsofa:

Followed the pipe and the other end goes to what seems like some sort of valve which is located on the rear of the engine block at the l.h. side (Looking in from the front).

On a different note...the new PCV came today and I have fitted it. Wen I started the engine, blue smoke came out of the exhaust for a while and then cleared-would this be the residue burning off in the exhaust ? Took it for a run and all seems fine. When I remove the dipstick with the engine on tickover, the oil no longer comes up the dipstick tube so that's a good sign !!

hd3 · Dec 11, 2012

Followed the pipe and the other end goes to what seems like some sort of valve which is located on the rear of the engine block at the l.h. side (Looking in from the front).

that'll be the solenoid for the turbo vane actuation diaphram .. pic in this thread ..
( http://www.landyzone.co.uk/lz/f9/td4-lack-power-70mph-fixed-77147.html )

vacuum system :
brake servo
turbo vanes - solenoid, diaphram, vent filter
egr valve - solenoid, diaphram

Singvogel · Dec 11, 2012

Someone has obviously re-routed the vacuum hose - as the original didn't go that way - over the top of the engine - at least mine doesn't.

SV.

springer1 · Dec 11, 2012

The pipe on my 56 TD4 is fitted this way.

Irishrover · Dec 11, 2012

Thanks Guys...appreciated.

I'm a dummy at the moment regarding the bits & pieces on the TD4 engine.

I don't fancy the idea of the tee with a pop rivet jammed in it, so I will get a plastic or brass connector and replace it to tidy it up. There is not enough length on the hose to reach the tee where it comes off the main line.

Any thoughts on the smoke after first starting following the PCV renewal ??

teddywood1 · Dec 12, 2012

i think the pipe is 5mm hole as far as i can remeber hope this helps

chris2000 · Dec 26, 2012

Looking under my bonnet yesterday and I noticed that a feed from the vacuum pump goes to the front of the ribbed cylinder (I assume a buffer chamber) Then a pipe goes out the back of the chamber and across the back of the engine and feeds down to the turbo vane control solenoid. Therefore they have bypassed the chamber and rerouted over top of engine, maybe? Anyway - found something to look out for.

My pipe running across back of engine had drooped down and was getting caught in the steering arm, which was slowly squashing and rubbing the pipe away

I have moved the pipe away and back approximately where it was for the photo.

I tyeraped it up to the IRD breather pipe to keep it up out of the way.
Freelander 1 53 plate (not facelift)

With the vacuum been shared to turbo,egr and brake servo I assume any leaks or pipes just taken off will alter brake performance!

teddywood1 · Dec 26, 2012

having looked at the photo again there is supposed to be another pipe coming of the t piece and going onto the vacume chamber behind it

disco_mikey · Dec 26, 2012

chris2000 said:
Why does the pipe coming off the T-piece go over the top of the injectors? I don't have any vacuum running past the diesel return pipes. It's like they have used a t-piece to extend the pipe to go somewhere different or via a different route. Where does the other end go?

To the VNT actuator

In reply to the OP, someone has blanked off the vacuum canister, probably due to a split canister

Well-Known Member

Well-Known Member

New Member

Active Member

Well-Known Member

New Member

New Member

Retired - Living the dream

Well-Known Member

New Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

New Member

Well-Known Member

Well-Known Member

New Member

Attachments

Well-Known Member

Active Member

Similar threads