pcv replacement or catch tank?

**p fandango** · Tuesday 3rd August 2010, 20:04

Originally Posted by jamest5r

Looks so simple in the flesh!! just get the damn thing started now and see how it performs, personally i would get rid of the catch tank and just vent straight to air from the block, you got to think about the weight at least a kilo there lol

it is simple really, just hope it works lol. Just got to get the throttle wheel welded onto the manifold & think the engine is ready then

she won't pass MSA scrutineering without a catch tank, my bro's VW failed last year becuase he was venting straight to air so we had to bodge a tank out of a water bottle so he could race lol

**Jamest5r** · Tuesday 3rd August 2010, 20:20

Just do what i do mate and run the pipe back down towards the back of the engine where its supposed to go....

**watchmytracer** · Tuesday 3rd August 2010, 20:24

after having all my pcv done and clearing all smoke mystery loss of oil has now been sorted after changing oil cap and loose pipe under top engine cover there was still a massive leak so in the end had to have mainfold off again to check everything and 1" wide rubber elbow had a split underneath causing epic oil loss so now it has a clean bill of health thank god

**p fandango** · Tuesday 3rd August 2010, 20:49

Originally Posted by jamest5r

Just do what i do mate and run the pipe back down towards the back of the engine where its supposed to go....

they know all the tricks mate, its amazing how well they check over the cars & rightly so, it is to make sure the cars safe to race

i've crew'd for a few teams in the VWDRC championship & its quite funny once they open up scutineering, the cars rushing back to the pit area & everyone trying to figure out how they can fix the faults with gaffa tape or anything they've got in the tents lol. The community spirit is very high between all the teams so normally end up borrowing/robbing from each other lol

**p fandango** · Wednesday 4th August 2010, 14:11

its been revised already lol, Powerflow would bend the pipe as it was too small for what they use so popped to Machine Mart & bought a hand pipe bender intended for gas pipe. The only problem was it only does wides radius bends so couldn't get them to line up where i planned yesterday. It has worked out well tho & the pipes now run under the manifold, theirs more run under there so is a bit better

need to either get some longer pipe & bend it upto the catch tank, or buy a 90degree silicone joint (think the new pipe will be better). Just put the crushed joint in to make sure it matches up

obviously all the joints will be jubilee clipped once its finished

**Jamest5r** · Wednesday 4th August 2010, 17:26

I think you should keep the silicone 90 bend that way you can easily take that section out if it ever blocks on that bend as no doubt there will be some of that gunk that dont make it to the catch tank.

**p fandango** · Wednesday 4th August 2010, 17:56

Originally Posted by jamest5r

I think you should keep the silicone 90 bend that way you can easily take that section out if it ever blocks on that bend as no doubt there will be some of that gunk that dont make it to the catch tank.

that is a very good point, thanks mate never thought of that

**Ade** · Wednesday 23rd February 2011, 15:08

Originally Posted by p fandango

its been revised already lol, Powerflow would bend the pipe as it was too small for what they use so popped to Machine Mart & bought a hand pipe bender intended for gas pipe. The only problem was it only does wides radius bends so couldn't get them to line up where i planned yesterday. It has worked out well tho & the pipes now run under the manifold, theirs more run under there so is a bit better

need to either get some longer pipe & bend it upto the catch tank, or buy a 90degree silicone joint (think the new pipe will be better). Just put the crushed joint in to make sure it matches up

obviously all the joints will be jubilee clipped once its finished

Looks interesting, think I'll be having a go at replicating this set up

**p fandango** · Wednesday 23rd February 2011, 19:50

Originally Posted by Ade

Looks interesting, think I'll be having a go at replicating this set up

i have changed the piping a bit since then, its basically the same just routed different to clear the manifold better. Also note i've still not ran the engine with it like that yet

**Ade** · Wednesday 23rd February 2011, 20:26

Cool, looks good.

In theory could I do this and just leave the original PCV box in place? Maybe just blank off the hoses?

So I would just need to route 1 hose from the block and 1 from the head?
Do you remember what diameter of hose is needed?

**p fandango** · Wednesday 23rd February 2011, 20:32

Originally Posted by Ade

In theory could I do this and just leave the original PCV box in place? Maybe just blank off the hoses?

So I would just need to route 1 hose from the block and 1 from the head?
Do you remember what diameter of hose is needed?

the PCV almost slots straight into the block breather so needs to be removed to get access to it. Its been changed & done over so long i can't remember the sizes sorry

**Ade** · Wednesday 23rd February 2011, 21:07

Originally Posted by p fandango

now to see about bypassing the PCV

Is the thick right angled hose on the right going into the block not what you hook up to the new catch tank though? Looks accessible there.

**p fandango** · Wednesday 23rd February 2011, 21:10

Originally Posted by Ade

Is the thick right angled hose on the right going into the block not what you hook up to the new catch tank though? Looks accessible there.

lol shows how much i remember, i thought there was less pipe than that & the pcv clipped straight onto the block outlet. So looking at the pic you should be able to remove all the pipes from the pcv (except sump) & T them into a catch tank