carbon build up.

Ron-D · Guru

carbon build up.

Dickodownunder · Guru

Hi Ron
I fitted one to my Toyota from new after reading and viewing results via pics in posts on a Toyota forum.
The results of fitting a catch can were obvious by the lack of carbon build up in the manifold and cylinder head so I thought it a reasonable addition for a small cost.
I have only done 26000 kls so I can not report as to its advantage to me but if it saves me an expensive strip down of the engine components at a later date then I will be happy.
The catch can on its own, as far as I am aware, does not interfere with engine emission figures however if you modify or block the EGR system then that is a different story.

-- Edited by Dickodownunder on Thursday 25th of August 2016 12:06:01 PM

Ron-D · Guru

Wish I had of done the same Geoff, but the next 100,000 ks there will be one fitted to the car, the thing is that you get used to the lack of power caused by this problem because it happens slowly, if it gets bad enough totally blocked you come to a stop..

Dave Jezza · Veteran Member

I'd also recommend using premium diesel all the time, or at least whenever possible... Caltex Vortex or BP Ultimate etc. I know it can be hard to get "out there" but definately worth it.

I have a '98 Hilux ute and a '14 Rav4 and it's all I use now. The old girl loves it, ute that is, more guts and less crap out the back.

Ron-D · Guru

Did not help in my case woollies with Caltex vortex is what I always use ,the fuels turned over with fresh tanker loads and its premium fuel, it does not matter what fuel your using the oil residue vapours are simply blocking your inlet manifolds up, the catch can filters the oil residue out so its not being burned in the manifold I think that's how it was explained from memory...

macka17 · Guru

If nothing else. Put a catch can of some sort in line.
Keep the crap that actually cooks into your exhaust system out of it.

The EGR will still pump old gases into system.
But it's the oil and s--t out of the rocker cover that do that cooking
and build up side of the damage.

Aus-Kiwi · Guru

I have fitted a Devels Own water / meth injection kit . It operates over 3/4 throttle & over 6 lb boost . Keeps carbon out of cylinders big time ..ever checked an engine with blown head gasket ? That cylinder is clean as a mirror ., servicing, frequent oil changes helps . Yes oil seperator., older diesels can be fitted with exhaust crankcase system to pull water etc out of engine. Keeps oil cleaner much like PCV on petrol engines..

WAssa41 · Senior Member

Had the same problem with my Colarado and found a chip on E Bay that tells the computer that the engine is not up to operating temp which stops the ERG? valve from opening and dumping exhaust gas into the manifold. It also gave me a little improvement in fuel consumption and more power on hills. The engine always gets pure air and not a mixture of air and exhaust gas.

Wassa

mr glassies · Guru

There is a preasure pack spray for diesels cleans this crap out but make sure it's only for diesel motors as they make 1 for petrol motors as well . I use them our Subaru loves it makes a **** load of difference and so do v6 crumble doors .
I think the diesel 1 has a yellow lid

Dibs

Aus-Kiwi · Guru

Yes it's called Sea Foam ., believe it or not ., Exhaust gases actually help keep combustion chambers COOL as it's an inert gas, doesn't burn. The issue is when it blocks up and doesn't work .,

Aus-Kiwi · Guru

https://seafoamsales.com

Diggings · Senior Member

I fitted a Provent 200 catch can to our PK Ranger some time ago and I drain it regularly, the blocked manifolds were a big problem in the 3 ltr Nissans but have talked to owners of other vehicles and they had the same problems, usually see oil dripping from Intercooler hose

Aus-Kiwi · Guru

Check turbo seals if oil is in intercooler ??

briche · Guru

Hi Aus-Kiwi, had a bit of a read about this sea foam and sounds like we should all be using it. One question, where do you buy it and how much per application ? Thanks for the heads up This is what makes this site work

briche

Aus-Kiwi · Guru

Subaru use a similar product .. I've used a few times to clean the vacuum pump on my 08 WRX or it gums up .. Only has 30.000 Klms on it too ..

dorian · Guru

This looks disturbing:
www.exploroz.com/Forum/Topic/29080/WARNING-_Oil_catch_cans__Diesel_Engines.aspx

Dickodownunder · Guru

dorian wrote:
This looks disturbing:
www.exploroz.com/Forum/Topic/29080/WARNING-_Oil_catch_cans__Diesel_Engines.aspx

From the link above

" Basically all oil catch cans have small 1/4 inch piping, which is totally inadequate to handle the larger volume of blow-by air that a diesel engine produces. (Due to the higher compressions). "

.................................

Well as usual, not everything you read on the internet is true.

I have a "Provent" catch can fitted to my Toyota 200 series and without going out and measuring the piping it would be approx 19 mm or 3/4" in old language.

The kit is supplied to suit the type and model of vehicle and in my case the piping is the same size as the original Crank case vent tubing.

"Provent" is a well recognised brand where as you can buy many other variations off ebay that may not be suitable for use on a particular engine.

Most mechanics worth their "salt" would know not to fit a system with 1/4" tubing.

-- Edited by Dickodownunder on Saturday 27th of August 2016 09:01:51 AM

-- Edited by Dickodownunder on Saturday 27th of August 2016 09:02:39 AM

GerryP · Veteran Member

Most EGR systems only operate under low load conditions and close off at speed and higher loads. This means that those vehicles which do mainly short runs or city stop-start running are most prone to carbon buildup. As far as I know, a properly sized catch can is not illegal and can certainly help.

I used to have a Toyota V8 diesel and had an EGR blanking plate fitted. Yes, it's not strictly legal, but there's no way you could tell it was in there without stripping the thing down. I'm afraid I don't like having a very abrasive, carbon loaded exhaust gas being forced back through my engine, reducing both it's performance and it's life.

Dickodownunder · Guru

GerryP wrote:
Most EGR systems only operate under low load conditions and close off at speed and higher loads. This means that those vehicles which do mainly short runs or city stop-start running are most prone to carbon buildup. As far as I know, a properly sized catch can is not illegal and can certainly help.
I used to have a Toyota V8 diesel and had an EGR blanking plate fitted. Yes, it's not strictly legal, but there's no way you could tell it was in there without stripping the thing down. I'm afraid I don't like having a very abrasive, carbon loaded exhaust gas being forced back through my engine, reducing both it's performance and it's life.

Hi Gerry,

Totally agree with you re the egr blanking plate.

There are plates made that have a small hole in them so as to "trick" the computer into not showing a fault code.

I thought it not good to fit one of these while the car was under warranty.

I hope I havent dragged this too far off topic but I would imagine that egr blocking would be able to be carried out on most engines.

GerryP · Veteran Member

Yes you're right Geoff, mine had a 10mm hole to avoid an engine fault light. Some vehicles can be completely blocked, but not too many of the newer computer controlled ones.

Delta18 · Guru

Like others, I experienced the issues with carbon build-up in our Triton. When we bought our D_Max 18 months ago one of the first things was to fit a catch can as well as a egr blanking plate.

I anticipate NO carbon issues in this car.

Cheers Neil

Ge · Senior Member

What about vehicles with DPF (diesel particulate filter).
Mine is 2008 VW Transporter 2.5 tdi
Cheers

DeBe · Guru

This is out of a Ford ranger diesel MAP sensor. Carbon baked on & this is as good as it could be cleaned using various sprays. A new one was fitted, the customer did not want any thing else done. So have no idea what the rest of the inlet system was like. MAP SENS.1.JPG MAP SENS.3.JPG MAP SENS.4.JPG

OutbackMK · Senior Member

My V8 70 series has had a blank-off plate with a 8mm hole since new also a Provent 200 catch can (it traps about 100 ml of oil every 5K) , at 90K I checked EGR blank 0ff plate and found about 30 grams of carbon, have now updated ECU to disable EGR valve altogether. (illegal)
All up the catch can (provided it will carry the full vapour load of the crankcase "min of 19mm hoses" ) will reduce the amount of oil ingested by your engine. As it is a closed circuit it should not contravene any anti pollution laws. (return vapors to inlet manifold minus condensed oil.) MAP sensors should be upstream of EGR reintroduction of burnt gasses on most vehicles, I admit I have no experience with particulate filtration systems however.

Aus-Kiwi · Guru

Three seperate devices mentioned here . PCV is seperate from EGR as is partical exhaust filter . Obviously a smaller system for breathing crakcase isn't going to work ! Plus I could almost say the crankcase pressure pushed oil through turbine seals ?? Possibly nothing wrong with turbo ? Depending how and where EGR enters engine ? The oil from PCV can add big time to cementing inlet . On the higher stressed single rail 4 cyl turbo engines . I wouldn't restrict EGR too much as it assists in keeping combustion temps down .. One reason the 3l Nissan burns Pistons .,

nuttyalmond · Newbie

Hi

Check out the Mitsubishi Pajero forum www2.pajeroclub.com.au there sections on this sublect. You can blank the EGR valve or you can fit a little gizmo that keeps the valve open. Also fit a provent catch can. Blanking the valve and drilling a hole can throw up error codes.

Best to do this early in the life of the car or after you have had the manifold removed and cleaned.