MOT tomorrow. To EGR or not to EGR?

D

dog-man

Active Member

Posts

952

• Dec 3, 2018

• #21

Does the bypass look like the original EGR valve or is it completely different?

 

hd3

Well-Known Member

Full Member

Posts

3,924

Location

Yorkshire

• Dec 3, 2018

• #22

Does the bypass look like the original EGR valve or is it completely different?

Click to expand...

it's like the egr unit .. but without the vacuum diaphragm disc-shaped housing ..
and exhaust feed pipe ..

pic 1 .. the egr valve unit

pic 2 .. a delete unit

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

hd3

Well-Known Member

Full Member

Posts

3,924

Location

Yorkshire

• Dec 3, 2018

• #23

Does the bypass look like the original EGR valve or is it completely different?

Click to expand...

to keep it looking original ..

see also :
https://www.landyzone.co.uk/land-rover/are-all-egr-valves-the-same.327080/#post-4204221

and ..
https://www.landyzone.co.uk/land-rover/are-all-egr-valves-the-same.327080/#post-4205147

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

D

dog-man

Active Member

Posts

952

• Dec 3, 2018

• #24

hd3 said:

it's like the egr unit .. but without the vacuum diaphragm disc-shaped housing ..
and exhaust feed pipe ..

pic 1 .. the egr valve unit
View attachment 163894

pic 2 .. a delete unit
View attachment 163895

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Click to expand...

Yours is pretty similar to mine. I replaced my EGR for the MOT in July, but might take a risk next summer.

 

Nodge68

Well-Known Member

Posts

32,848

Location

Cornwall

• Dec 4, 2018

• #25

I'm quite keen on keeping mine standard looking. I'm actually thinking of doing a modification to the EGR valve that reduces the amount of exhaust that can pass into to their inlet. I'm thinking of turning up a restrictor plug for the exhaust inlet side of the valve that has a 6mm or 8 mm hole through it. This will still allow it to pass a small amount of exhaust gas, but stop it from gooping up the inlet tract.
The idea behind this is to stop the 2K misfire, the is only evident when the EGR is blanked.

 

Rank Amatuer

Well-Known Member

Posts

4,880

Location

Scotland

• Dec 4, 2018

• #26

A 6mm or 8 mm hole will goop up in no time.

What are the advantages of fitting an EGR bypass over simply blanking it? One is cheap and easy to do, the other more expensive and a sod to get at.

 

Nodge68

Well-Known Member

Posts

32,848

Location

Cornwall

• Dec 4, 2018

• #27

Rank Amatuer said:

A 6mm or 8 mm hole will goop up in no time.

Click to expand...

No reason for a 6mm or 8mm hole to goop up. The goop only forms due to the oil mist in the intake system. This oil mist then partially burns in the intake when the hot exhaust is admitted, forming the goopy soot.
There's no goop in the exhaust transfer pipe, so a small hole won't clog up.

 

Nodge68

Well-Known Member

Posts

32,848

Location

Cornwall

• Dec 4, 2018

• #28

Rank Amatuer said:

What are the advantages of fitting an EGR bypass over simply blanking it? One is cheap and easy to do, the other more expensive and a sod to get at

Click to expand...

Non really. Fitting a bypass does the same job as plugging the vacuum pipe to the EGR valve.
In theory the removal of the valve in the inlet "could" improve throttle response, but it's doubtful anyone would notice.

I'm going to try a restrictor, as I want to solve the 2K misfire riddle.