fitting an oil catch can?

[robx1r]

anyone tell me how to do it? or have decent pictures?

the breather system on these is quite complex compared to all my other cars!

[James5]

Fitting a catch tank is a piece of piss :mrgreen:

I would do it the following way.

Remove the one way valve on the back of the inlet manifold and put a suitable bolt in the hole remove all the breather pipework, remove the restrictors from the pipe work,
Locate catch tank in location you want it then run the rocker cover to the catch tank and the catch tank 2nd port will be to atmosphere.

You then need to remove the oil sperator pot and metal pipe that goes to the sump as the metal pipe is not a breather but merely a return for the sperated oil. block this off as the sump

Job done.

[robx1r]

thank you kindly. any pictures of locations.

just the amount of breather pipe is daunting. on the mazda there is a balancer breather and one to the intake pipe.

[James5]

thank you kindly. any pictures of locations.

just the amount of breather pipe is daunting. on the mazda there is a balancer breather and one to the intake pipe.

I will try and find some pic's

[James5]

You need an M8 x 25 or 30mm length bolt for the inlet manifold also re-use the copper washer of the one way valve


Some pic's on a previous catch tank thread :mrgreen:

viewtopic.php?f=10&t=9560&p=63799&hilit=catch+tank#p63799

[robx1r]

i'm usually very good with the search function!

there was no one way valve on mine!

[smithyr5gt]

hay guys sorry to but in. james i meant to talk to you about this for a few weeks now. i have done what you have just said.
but a mate of mine has told me not to blank of the inlet and link this to the outlet on the catch tank. (get me) so rocker cover to inlet in catch tank then outlet on catch tank to inlet manafold.
this then causes a vacum in the tank and pulls the old oil vapour in to the tank.
then when full you empty. so on and so on. topping up with new oil all the time.

my tank has the inlet and out let at the top so when it pulls in it drops to the bottom of the tank.

what do you think honestly! this has worked for me and if it turns out a better way then wana spred the idea.
and in the same way if its going to cause me problems in the future then i wana know now.  

[scratcher]

Smithy. You don't need it to pressurise the breather system. It should only use atmospheric pressure. If the tank starts filling enough that you need to top it up there could be a problem.
It only goes to the inlett to stop the fumes going out into the wild. Or something like that it's fine blocked off.

[fordy]

smithy
what your mate has said is the most ideal way of doing it, if you have a good quality catch tank proper internals like a baffle or wire wool

but its all person preference some people like open to atmosphere and some like to pull the vapours through

either way works just as good as the other

[smithyr5gt]

cool ok guys sounds good.  
was wondering what everyone thought.

[James5]

Personally I would just go to atmosphere