Manifold and EGR Changed After Cleaning - Page 2

Wilmac · 17th February 2012, 15:12

This is something that I am considering doing on my 75 cdt, I would really appreciate any advice as to whether this is a " good" mod and what damage bypassing the EGR may cause?

All advice welcome!!!!

uk_dave&gill · 17th February 2012, 15:53

With respect to the manifold, assuming it was caked up beforehand (?) have you had the clean one on long enough to notice any difference in performance or mpg?

Mel Dawson · 17th February 2012, 19:11

Hi,
I cleaned my maniflold & egr about 6 months ago & found the car runs a lot smoother & about a 3 mpg improvement.

Cheers Mel.

kissifer1972 · 17th February 2012, 19:18

What method is best for cleaning the manifold? Have heard all sorts such as putting it through the dishwasher, using a bottle brush and petrol and others.

Which method do people find works best?

Chris

Arctic · 17th February 2012, 20:46

Quote:

Originally Posted by kissifer1972

What method is best for cleaning the manifold? Have heard all sorts such as putting it through the dishwasher, using a bottle brush and petrol and others.

Which method do people find works best?

Chris

Hi Chris

I just used a engine degreaser sprayed it and let it soak over a few days mind i could afford too as i had a couple i bought spare.

this was my last spray the day before i fitted the manifold i then power washed it out with a jet washer

ready for fitting

all is in link below.

https://www.the75andztclub.co.uk/forum/showthread.php?p=927819#post927819

johnny english · 17th February 2012, 21:25

Hi artic
Brilliant write up,just one question did you reuse the manifold gaskets.

Arctic · 18th February 2012, 00:20

Quote:

Originally Posted by johnny english

Hi artic
Brilliant write up,just one question did you reuse the manifold gaskets.

Yes checked them all and in good condition as are rubber i used the ones which cam with the spare ones i bought and have yet to clean my own which i took off.

grivas · 18th February 2012, 11:46

An excellent write up Arctic, a quick question, how tight are the bolts and any danger of rubber gaskets falling into engine when removing the manifold.

HarryM1BYT · 18th February 2012, 16:19

Quote:

Originally Posted by Wilmac

This is something that I am considering doing on my 75 cdt, I would really appreciate any advice as to whether this is a " good" mod and what damage bypassing the EGR may cause?

All advice welcome!!!!

Worth doing, if you want to avoid the need to clean the EGR and inlet. Bad point is that there will be slightly more emission at low revs. The fitting of EGR's was an attempt to reduce the emmissionsas they come from the factory, but likely after a few thousand miles and due to the caked on muck, the emissions will be made worse.

The difference is not detectable during the MOT test.

Arctic · 18th February 2012, 21:25

Quote:

Originally Posted by grivas

An excellent write up Arctic, a quick question, how tight are the bolts and any danger of rubber gaskets falling into engine when removing the manifold.

Bolts were not really tight if you are asking me how tight in specified torque its M6 bolts 10Nm -lbf ft 7 M7 nuts and bolt 15Nm lbf ft 11 i use rule of nip up till tight then a third turn i tightend them from left to right every other one so as to keep them even or criss cross which ever you feel best with. someone may jump on board and give you how they tighten theirs there are nine bolts and four nuts i doubt the rubber gaskets will fall into the engine all mine stayed in the inlet manifold. Arctic

17th February 2012, 15:12	#11
Wilmac Avid contributor 75 Connie Saloon cdt (03) Join Date: Jan 2012 Location: Portglenone Posts: 194 Thanks: 17 Thanked 1 Time in 1 Post	EGR Bypass ?? This is something that I am considering doing on my 75 cdt, I would really appreciate any advice as to whether this is a " good" mod and what damage bypassing the EGR may cause? All advice welcome!!!! __________________ Wilbert

17th February 2012, 15:53	#12
uk_dave&gill This is my second home .. Join Date: Feb 2007 Location: Town Posts: 4,166 Thanks: 1 Thanked 189 Times in 105 Posts	With respect to the manifold, assuming it was caked up beforehand (?) have you had the clean one on long enough to notice any difference in performance or mpg? __________________ Dave

17th February 2012, 19:18	#14
kissifer1972 Posted a thing or two Rover 75 CDTi Conn Tourer & Rover 75 CDT Conn SE Saloon Join Date: May 2010 Location: Queensbury Posts: 1,368 Thanks: 0 Thanked 1 Time in 1 Post	What method is best for cleaning the manifold? Have heard all sorts such as putting it through the dishwasher, using a bottle brush and petrol and others. Which method do people find works best? Chris __________________ Mods so far X-Power Performance Upgrade LED interior lights and sidelights Genuine Rover Xenons - now removed and sold Kenlowe fan Synergy 2 EGR Bypass

17th February 2012, 19:11	#13
Mel Dawson Passed Away 2004 facelift saloon cdti se connoisser Join Date: Nov 2008 Location: Brixham Posts: 765 Thanks: 88 Thanked 22 Times in 17 Posts	Hi, I cleaned my maniflold & egr about 6 months ago & found the car runs a lot smoother & about a 3 mpg improvement. Cheers Mel.

17th February 2012, 21:25	#16
johnny english Avid contributor rover 75 club cdti se saloon Join Date: Jun 2010 Location: liverpool Posts: 190 Thanks: 16 Thanked 8 Times in 8 Posts	Hi artic Brilliant write up,just one question did you reuse the manifold gaskets.

18th February 2012, 11:46	#18
grivas I really should get out more....... Rover 75 CDT Club Tourer Join Date: Nov 2006 Location: Milky Way Posts: 2,380 Thanks: 105 Thanked 513 Times in 382 Posts	An excellent write up Arctic, a quick question, how tight are the bolts and any danger of rubber gaskets falling into engine when removing the manifold.