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Old 3 Weeks Ago   #1
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Oil catch tank.

Hi.
I have now lashed up a temporary fitment of the catch tank. If all goes well I'll get some nice alloy pipes made up and a proper bracket for the tank itself.
The main breather pipe was quite oily and the MAP was oily yet again.
I really think this will be a worthwhile modification.
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Old 3 Weeks Ago   #2
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Re: Oil catch tank.

I'd be interested to know what it collects compared to mileage.
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Re: Oil catch tank.

Quote Originally Posted by Goudrons View Post
I'd be interested to know what it collects compared to mileage.


I agree, it will be interesting to see.

Also have to give applause for the effective bodging using cable ties until you can fabricate a bracket. One of the most useful things I have in my toolkit
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Re: Oil catch tank.

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Re: Oil catch tank.

Quote Originally Posted by The Pretender View Post
Nice if you're rich!!!!
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Re: Oil catch tank.

Quote Originally Posted by murphyv310 View Post
Nice if you're rich!!!!
Nothing to do with being rich or not, but just being the best solution IMHO.
After filtering it drain back into the oil-pan with this solution.
So no need to empty out the sludge after some time, just clean the filter and ready to go again.
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Re: Oil catch tank.

Quote Originally Posted by The Pretender View Post
Nothing to do with being rich or not, but just being the best solution IMHO.
After filtering it drain back into the oil-pan with this solution.
So no need to empty out the sludge after some time, just clean the filter and ready to go again.
Looks like a neat solution, two minutes draining the residue though and not returning dirty oil back to the sump to me is just perhaps more sensible.
Each to their own though.
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Old 3 Weeks Ago   #8
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Re: Oil catch tank.

Quote Originally Posted by murphyv310 View Post
Looks like a neat solution, two minutes draining the residue though and not returning dirty oil back to the sump to me is just perhaps more sensible.
Each to their own though.
Oil get filtered before that with this solution.
Besides that, where do go with the sludge that "you" drain. ??
Down the toilet. ??
You have to collect it somewhere and the get rid-of it environment friendly.

Back in the sump is a better solution IMHO.
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Re: Oil catch tank.

Hi.
I have a 25 litre barrel I keep for oil changes and I empty it in an oil recycling tank when it's full, done this for years.
TBH I'm more than happy with my little tank, I've all the time in the world to potter about with the car and my other hobbies so it will do fine for me.
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Re: Oil catch tank.

Educate me, what's the purpose of this system?
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Re: Oil catch tank.

To keep your engine healthy.
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Re: Oil catch tank.

Quote Originally Posted by The Pretender View Post
To keep your engine healthy.
Elaborate with some science

Is it worth doing?
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Re: Oil catch tank.

Yes, everything from the blow by go's into your intake manifold and pollute it, with al kind of problem in the long run.
The Catch-can catch everything but air.
Google, Catch-Can Sludge and you have an idea what will not end up in your engine again.
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Old 3 Weeks Ago   #14
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Re: Oil catch tank.

Hi.
Every engine has to breath. The products of combustion and inevitable leaks past the piston rings would pressurise the sump and block if this small amount of pressure wasn't vented. In days gone by the rocker or cam cover would have an oil filler cap with gauze in it and the fumes would be vented to the atmosphere, some cars also has a breather on the side of the block.
Today due to regulations the breather fumes are vented back to the air intake on the throttle body side of the air filter and also a small bypass tube sucks the fumes below the actual throttle flap so the fumes will be burned on tick over.
What also happens is some of the oil from the engine as it splashes around is drawn up the breather pipe and it gets drawn in by the throttle and this collects in the inlet manifold. it will contaminate the MAP, carbon up the inlet valves and if excessive damage the Lambda sensor.
The Catch Tank literally breaks the breather pipe and oil will drip into the tank rather than it getting into the inlet manifold and engine. Both the inlet and outlet on a catch tank don't face each other for this reason, It is possible a tiny amount of oil still could be drawn in but that depends on the catch tank design.
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Re: Oil catch tank.

Quote Originally Posted by leroya500 View Post
Educate me, what's the purpose of this system?
The idea is to prevent oil fumes/mist/vapour being sucked through inlet manifold.
The oil fumes etc could be contaminating the op map sensor causing poor engine running and possibly also being the cause of the op O2 sensor failing.
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