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Catch Can Not Trapping Oil?

vxsr33

By vxsr33,
in General Maintenance

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vxsr33 Proficient

vxsr33

Posted
Posted

I was doing a minor service on my car and decided to check how much oil is in the catchcan but it was completely empty. The stainless steel kitchen scourers i put in smelt a bit like oil vapour but were not wet with oil.

just wondering why there is no oil? have i set up the catch can properly or am i just a stooge?

Thanks guys

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https://www.sau.com.au/forums/topic/465296-catch-can-not-trapping-oil/
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KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Did you have a problem before you fitted the catch can? What do you use the car for? Oil is normally spewed out only with sustained runs at WOT i.e on the track or sometimes on the dyno.

Empty catch can is a good thing!

Can't really see your set up. Do you have a line from each cam cover going to the top of the can? Is there a vent? Or a drain?

Dasmbo Collaborator

Dasmbo

Posted
Posted

That's how it should look no oil is a good thing. My catch can is like yours which is a sign of a healthy engine. When my engine was stuffed before it was rebuilt it was filling the catch can every 200kms which turned out to be a couple of cracked pistons.

vxsr33 Proficient

vxsr33

Posted
  • Author
Posted

Did you have a problem before you fitted the catch can? What do you use the car for? Oil is normally spewed out only with sustained runs at WOT i.e on the track or sometimes on the dyno.

Empty catch can is a good thing!

Can't really see your set up. Do you have a line from each cam cover going to the top of the can? Is there a vent? Or a drain?

The line to the catch can is from the right rocker cover to catch can (non vented) then to the intake.
rcs_888 Rising Star

rcs_888

Posted
Posted

The point of truth is to pull off the inlet pipe and see if there's evidence of oil vapour travelling through the can and into the inlet.

That's what I would look at. With your vent being right next to your vacuum source it may just be coming into the canand shooting straight across to the intake hose and back into the inlet manifold. You really want to be drawing through the scourers not across the top of them imo

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