Catch Can installation

[wholesalesuspension Advanced Member Find all posts View Profile Close wholesalesuspension]

Go a Mann Hummel ProVent 200
Best Catch Can on the market and with piping sizes and flow capacity well suited to Diesels.


Regards, Jason.

[MalcomM Senior Member Find all posts View Profile Close MalcomM]

I'd just love to see some evidence as to 'Best Catch Can on the market'.
Its a bit like fridges, unless its a waeco or engel it must be crap. Buying the most expensive can available doesn't mean it will perform any better than a cheap one if installed properly.

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

Well I for one vote for the Provent, I check mine often, oil deposits in inlet hose,
filter is saturated in oil, oil residue on inside of canister, oil in drain pipe, outlet
hose is dry.

Also the fact that it has an overpressure release is good, not such a problem with
a new car but down the track, should the filter become blocked then you won't
be blowing rocker cover or crankcase or other seals.

[wholesalesuspension Advanced Member Find all posts View Profile Close wholesalesuspension]

I'd just love to see some evidence as to 'Best Catch Can on the market'.
Its a bit like fridges, unless its a waeco or engel it must be crap. Buying the most expensive can available doesn't mean it will perform any better than a cheap one if installed properly.

I have used them many times & also seen cheap cans with fittings too small that can't flow enough blow by for a diesel and blow the ass out of gaskets from the crankcase over pressurising.
This is the biggest problem with most of the cheapie catch cans on the market. The fittings are too small for a diesel and people put reducers on the hoses to make them fit. They just don't flow enough.

A decent can should always be baffled or filtered, as an empty can does very little except catch what oil hits the sidewalls & runs down.

The addition of the pressure relief valve in the ProVent is invaluable also.
They have some good data on their site about flows and particulate catchment.
https://www.mann-hummel.com/fileadmi...nt_en_2013.pdf

I have used and seen many many cans over my years as a mechanic and a lot of them rate very poorly.


Regards, Jason.

[Rusty62 Advanced Member Find all posts View Profile Close Rusty62]

Well I for one vote for the Provent, I check mine often, oil deposits in inlet hose,
filter is saturated in oil, oil residue on inside of canister, oil in drain pipe, outlet
hose is dry.

Also the fact that it has an overpressure release is good, not such a problem with
a new car but down the track, should the filter become blocked then you won't
be blowing rocker cover or crankcase or other seals.

X2.
Installed mine and always has oil in the drain pipe.
The only issue I have had is the need to put a reducer in the line before the turbo. The over suction valve was fluttering at idle. The first Provent I had split this seal and ws replaced under warranty even though it was 2 years old.

Rusty.

[wheelbarrow74 Lurker Find all posts View Profile Close wheelbarrow74]

Well, there is no question that the Provent 200 is a very good catch can. However, it is quite a large bulky can and difficult to find somewhere to install it!!

[Dabeanian Member Find all posts View Profile Close Dabeanian]

Hi boys,
Just so I know, we take the hose from the turbo to the rocker box , and re route it from the turbo to the catchcan, then out of the catchcan into the rocker box,
Sorry boys it's got to be clear for me.
Cheers Alan.

[wholesalesuspension Advanced Member Find all posts View Profile Close wholesalesuspension]

Hi boys,
Just so I know, we take the hose from the turbo to the rocker box , and re route it from the turbo to the catchcan, then out of the catchcan into the rocker box,
Sorry boys it's got to be clear for me.
Cheers Alan.

Come out of the Rocker cover to the inlet of the Catch Can.
Then from the outlet of the Catch Can to the turbo.

Regards, Jason.

[BlakMoth Avid PP Poster! Find all posts View Profile Close BlakMoth]

That's for a 90 series Dabeanian.
You have a 120?
I think the hose from the catch can goes into the egr valve not the turbo


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[wheelbarrow74 Lurker Find all posts View Profile Close wheelbarrow74]

I notice also that the Provent has 1" inlet/outlet, where as the rocker and turbo inlet are 3/4"... will need to source a reducer.. but starts to get messy! I reckon this one is the go... http://www.ebay.com.au/itm/291366622...%3AMEBIDX%3AIT

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

What I found was that my 16mm hose was a tight fit inside the catch can fittings. Some heatshrink over the top and no issues for 40k.

That one looks like a copy of the M+H 100 which is a bit small for the D4D. I also wouldn't go with a copy. Genuine filters are unlikely to fit. I bought a @#$# %$ Provent style (please note description edited after the event) believing it to be genuine. It is still in its box. I bought genuine because the filters seal properly.

[wheelbarrow74 Lurker Find all posts View Profile Close wheelbarrow74]

Should be fine with the 1KZ though?

[wholesalesuspension Advanced Member Find all posts View Profile Close wholesalesuspension]

What I found was that my 16mm hose was a tight fit inside the catch can fittings. Some heatshrink over the top and no issues for 40k.

That one looks like a copy of the M+H 100 which is a bit small for the D4D. I also wouldn't go with a copy. Genuine filters are unlikely to fit. I bought a @#$# %$ Provent style (please note description edited after the event) believing it to be genuine. It is still in its box. I bought genuine because the filters seal properly.

MJ, i am well aware of those copycat cans that a business that shall remain unnamed on here was selling.
Mann Hummel will actually give you one of theirs at a greatly reduced cost if you send them your copy.
That certain someone is about to end up in Court over it all.

Regards, Jason.

[wholesalesuspension Advanced Member Find all posts View Profile Close wholesalesuspension]

Should be fine with the 1KZ though?

Up to you, but for the sake of my own engine, i'll buy one that i know works and won't risk a cheaper copy.

Regards, Jason.

[Early Member Find all posts View Profile Close Early]

You have a 120?
I think the hose from the catch can goes into the egr valve not the turbo

that will be interesting!:!:

Doesn't matter what car, PCV and EGR are different systems. catch can is for PCV, which is engine blowby gas + oil mist being removed from upper crankcase via rocker cover and rerouted into air intake (usually pre-turbo). EGR is cooled exhaust gases and fed into air intake manifold (post-turbo, usually post-intercooler) during times when engine is being warmed or when under low load.

EGR blocking has its merits but can lead to CEL's caused by low intake pressures. check PP or google "EGR resistor mod" to fool ECU and bypass EGR electronically.
EGR + PCV + 100,000 km's = restricted intake manifold

I have used provent 200 and it works to keep an intake clean of oil. cleaning the intake pipes and intercooler full of oil is not a quick job.