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PVC removal and Catch can install (BAM Engine

cuprapete

Active Member
Feb 18, 2010
193
0
Damp Devon
great guide. I am about to do mine after getting fed up plugging the leaks in the pcv system (everytime I run a boost leak test there is a new leak in the pcv piping somewhere. Will be fitting a Saikou Michi catch tank
 
Dec 5, 2012
806
0
Harlow
i want to do this to mine. ive been reading various different threads on this and from what i can gather the pipework, inlets and outlets on the catch tank need to be 19mm.

ive seen people say there needs to be some form of webbing inside the catch tank, is there any reason for this?
also ive seen others say that venting to atmosphere isn't good and that is should be plumbed back into the TIP. something about the piston rings not sealing properly when venting to atmosphere.

could anyone shed any light on this for me?

thanks
 

rallychief

Active Member
Oct 13, 2008
101
0
I live in South Devon
Hi also is this exactly the same procedure to do this on an AUQ, if not can anyone give me a link to the guide for that, I have a huge split in the Y shaped pipe going to PCV valve, which I have repaired temporarily, rather than start replacing probably expensive hoses and the valve, rather take it off.



Cheers Chris
 

Greavesy

Active Member
Jun 30, 2013
380
0
Donny
The webbing catches the oil vapor better.

Not heard anything about venting to atmosphere causing any engine problems. Surely more air/fuel mixture with less oil vapor will be better for the engine?
 

wildrides

Active Member
Dec 27, 2013
396
1
Its a sealed pollution system that works best as intended ....... Just replace the split pipe from your seat dealer ....... way cheaper than all these mods people are doing . The oil vapour lubes the valve guides ......... remember redex anyone ?
 
Dec 5, 2012
806
0
Harlow
See^ does this have truth to it? First of all fitting a catch tank will cause the piston rings to not seal properly now its they won't Lubricate the valve guides.

Is any of this true and fitting a catch tank could/will cause problems and I'm better off sticking with the standard PCV system, or will a catch tank not cause any of these issues?

As far as I'm aware fitting a catch tank is a good idea, no more crappy oil vapours going back into the engine clogging everything up with old oil and decreasing the octane rating of the fuel.

Anyone shed any light on this??
 

Greavesy

Active Member
Jun 30, 2013
380
0
Donny
People have been adding catch cans to all sorts of cars for ages, I can't see it causing serious issues.

Also, how will fitting a catch can cause the piston rings to not seal properly?
 
Last edited:

Hobbiniho

Active Member
Jan 17, 2009
545
9
shetland/ Aberdeen
put it this way do you want his **** going back into your engine or would you rather catch it??
(edit) mostly water!! dont think water lubricated valves very well..

 
Last edited:

747_727

Active Member
Apr 2, 2012
1,113
2
Essex
That is the stuff that normally just blocks up all the pipes anyway and stops the pvc system working anyway.
 

googujube

LCR225
Jan 1, 2013
368
0
York
See^ does this have truth to it? First of all fitting a catch tank will cause the piston rings to not seal properly now its they won't Lubricate the valve guides.

Is any of this true and fitting a catch tank could/will cause problems and I'm better off sticking with the standard PCV system, or will a catch tank not cause any of these issues?

As far as I'm aware fitting a catch tank is a good idea, no more crappy oil vapours going back into the engine clogging everything up with old oil and decreasing the octane rating of the fuel.

Anyone shed any light on this??

interested to hear more on this. I've run a can since a rebuild and cant see any issues with sealing.
 

wildrides

Active Member
Dec 27, 2013
396
1
That stuff as you call it is just imulsified oil ......... as said it lubes the valve guides

........ its just oil and pure water , both of which are found in engines ! People actually inject water into engines as I am sure you are aware . If you want to rip out a perfectly good vent system and spend time and money putting in an inferior one fine !;)
 
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