Manifold clean & EGR blank

[Nater]

Hi guys,

I know the EGR thing has been done to death over the past few years with many variations. However with so many threads it's hard to determine if the mods have been a success.

I am about to do a manifold clean and afterward a full EGR blank and throttle plate hole.

I would like to know how members have gone with these two mods (full EGR blank & 12mm throttle plate hole (no chip)? Is the vehicle running well, is it or has it caused any faults over time.

Thanks

Craig

[Axis]

Hi Craig.

I have a 2007 NS manual and have EGR block and throttle plate drilled. No issues and no errors but I still heed to clean the inlet manifold as have not got around to it

Does the NT need the throttle plate drilled? For some reason i thought it was only the NS that needed it to prevent the error.

Cheers, James

[markc]

I haven't done a manifold clean yet but will do so on my next service at 150K which will be this pajero's first manifold clean.

I fitted a full egr block however when my economy worsened by around 0.7 ~ 0.9 lt/100 checking over 4 weeks of similar driving I went for a partial EGR block with a 11.5mm hole (=10% of the pipe x sectional area) on the blocking plate. My plate is fitted to the outlet side of the egr cooler to minimise heat to the plate which is made of 2mm thick 304 stainless steel. I can provide a sketch if you're up to making one.

I can explain why this happens to economy but didn't want the flack of all the EGR block lovers.

My economy improved to where it had been for months and my theory is a partial block is better than none and give sufficient protection when a catch can is fitted..

I also fitted the pro-vent catch can and can confirm after 10,000 klm the outlet to the manifold is absolutely spotless with no oil to be found and the can has captured approximately 60ml of oil in that time that would of headed into the manifold to mix with hot exhaust gases = build up of carbon. Also at high temps a quality synthetic oil with fume off and release less volatiles than a syn/mineral blend oil.

I first tried the "chipit" imitation catch can (pro-vent copy) but still had oil in the outlet so bought the genuine unit which is doing a perfect job even though they both look near identical and measure up within 0.2mm on most tolerances that would mean anything.

Its also interesting that all the current Volvo Penta marine diesels are running pro-vent catch cans on the crank case vapour returns

So my 20c is to fit a partial block and prov-ent can, equals no oil to the manifold, no faults and better economy than a full block. The manifold will stay pretty clean and probably need a clean maybe every 100,000 or so but your better off fuel wise by around $1,300. you decide.

Good luck with your manifold clean

Note that the better economy is only while the manifold is reasonably clean and hasn't been chocked up with coal like some

[Nater]

Thanks guys,

James, I'm not sure about the NT needing the throttle plate hole. I was under the belief it did require it.

Mark, could the worse economy be due to not having the throttle plate drilled, I.e. Not enough oxygen for good combustion?

Craig

[aranciaman]

I have just fitted the EGR module from SPV industries. Took about 5 minutes to do and seems good so far. We towed our 22ft van at 95-110km/h last night from Bairnsdale to Melb with a fuel average of 17 which I thought was good considering that I wasn't being careful. Haven't had the chance to see what driving without the van does yet. Only cost $50 inc delivery. Seemed easier than blanking plates etc. No codes. Don't know what else to look for. It does seem to have slightly better around town fuel average. Literally cut a wire, fitted two bullet terminals and then cut another to activate it. Taped it back into the loom and I was done. Worth a look.

[eman]

I have just cleaned the manifold on my NT during the 180k service, jeez that was fun.
I also fitted the SPV EGR module while I was at it. Pretty easy to install, took all of 5 mins and the Ultragauge confirms the EGR is closed during the limited testing I've performed.
Previously I had an EGR blanking plate from chip it and didn't have a problem or need to drill the throttle plate...

[Muzza]

I fitted the SPV mod as stated and a 100% 3 mm blank just to be sure, no fault codes ever logged, no crap in manifold mid 8's not towing 15 towing
I'm pleased
The vehicle is chipped

[Kirkster72]

Where can I get this SPV EGR from? & also does that mean I don't have to put a blank in?
Still trying to work out this "egr blank thing"
Cheers Bryan

[eman]

Bryan send an email to [email protected] and they should be able to set you up with an order. No need for a blanking plate

[Kirkster72]

Thanks Eman,
Don't know if you remember me, I bought the Thule roof racks from you.
Cheers Bryan

[eman]

No worries Bryan, and sure do, hope the racks are treating you well!

[Nater]

I have just cleaned the manifold on my NT during the 180k service, jeez that was fun.
I also fitted the SPV EGR module while I was at it. Pretty easy to install, took all of 5 mins and the Ultragauge confirms the EGR is closed during the limited testing I've performed.
Previously I had an EGR blanking plate from chip it and didn't have a problem or need to drill the throttle plate...

Hi Eman,

Can I ask why you did the SPV mod if the full blank plate was already in place and working without issue?

Cheers

Craig

[Nater]

I have just fitted the EGR module from SPV industries. Took about 5 minutes to do and seems good so far. We towed our 22ft van at 95-110km/h last night from Bairnsdale to Melb with a fuel average of 17 which I thought was good considering that I wasn't being careful. Haven't had the chance to see what driving without the van does yet. Only cost $50 inc delivery. Seemed easier than blanking plates etc. No codes. Don't know what else to look for. It does seem to have slightly better around town fuel average. Literally cut a wire, fitted two bullet terminals and then cut another to activate it. Taped it back into the loom and I was done. Worth a look.

Thanks mate, I guess that's the other option. Then no blanking plate required.
Is it pretty easy to install for an electrical idiot like me to install?

[eman]

Hi Eman,

Can I ask why you did the SPV mod if the full blank plate was already in place and working without issue?

Cheers

Craig

Hey Craig,

Basically I preferred the idea of having the EGR motor closed instead of relying on the blanking plate, I've already had to replace an EGR motor and with it closed 100% of the time I shouldn't have to replace it again.
Plus there's the thought of something going wrong with the plate and destroying a motor...

Eden

[Roley]

I was looking at installing a Pro-vent catch can.
If i was to do the SPV mod would it still be a good idea to use a catch can or not?