bpspa

iTrader: (1)

whats the best breather system for a stg 1 2wd, and do they all need the rocker cover drilling as I would prefere not to?

cheers

ben

tabetha

Some advise against drilling the rocker cover citing the reason as it stopping the flow of oil draining back, because pressure is coming that way.
Personally I think this is wrong, so will be drilling mine when next off.
You can get cheap decent breather kits from RATSPORT.CO.UK.
tabetha

bpspa

iTrader: (1)

tanks for that tabetha.

i presume its one of these I need to order and a length of hose to go back to the sump.
http://shop1.actinicexpress.co.uk/sh...il_Catch_Tanks

am I right in thinking that you will drill the rocker cover putting one pipe from there into one of the catch tank tube and then the other coming out of the tank back to the sump somewhere what fittings would you use for the rocker cover and sump in order to attach the hoses?

tabetha

There are three take off points on the cossie one in the kidney box(remove), one on the base oif the block the other side, and if you want to the rocker cover can be drilled.
The rocker cover does not really need to be drilled at stage 1 though to be honest, just use the two blcok ones.
The fittings can be bought at a lot of places, like burtons etc std part.
the plenum cover breather pipe will need blocking where it was connected to the kidney box, use a grub screw(allen) with a bit of sealant here.
tabetha

robocos

I hope tabetha never sells his Sapphire as where would we all go for advice then. Top man.

tabetha

I know nowt me, it wasn't me and I did not do it!!
I paid more for this car than I have ever paid for any other so it will be with me for at least ten years yet.
I bought it for £2700, then the next day when some dozy bint backed her 4wd into it arsing around, it had £1600 of repairs(she paid, CASH), but I paid for extra work totalling £3500, so all good for a few years yet!!
tabetha

Ridgey

iTrader: (5)

If you don't want to drill the rocker cover use for breather ports the original place (inlet side), and on the exhaust side there is a blanking plug underneather the exhaust manifold you can take out and position a second breather hose. Now you have given yourself double the breathing capacity.
For the oil return hose for your breather you can purchase (from GGR or others) goodridge fittings to return to the sump plug position. This is the best place to have the oil return as it is below the oil level, therefore no positive pressure working against the oil flow return.
GGR recommended this method to me (i didn't want to drill the rocker cover on a 3dr i had) and they also used it on RS500 touring cars.

Standard bailey setup is breathing from the rocker cover and original position, and oil return to the exhaust side of block (above oil level).

sygjim

iTrader: (1)

with a bailey "image" tank separator, does it necessary to keep the genuine separator (near the plenum) ?

mk2rstaff

i am about to do the same thing to my car as i have just purchased all the relevant stuff, so will be keeping this thread watched for any info, i have a breather tank with two top pipes and an atmosphere one at the bottom, then a separator tank, which way should i fit them round, ie from the separator to the sump

bpspa

iTrader: (1)

some top advice their mate, have you got a pic of your setup at all

also bit of dumb question but will I need to take the head off, as the car has just had a new gasket before I got it back off my uncle

will give GGR a ring

mk2rstaff

no need to remove the head mate, but it is tricky to get under the inlet manifold

sygjim

iTrader: (1)

on the white paper, bailey said to keep the little hose on the genuine kidney box

so, i had just to fit the alloy join and the supplied hose on it ???

with the mirror kit , there is 3 hoses, does i need to kut one ?

thanks for your help

col cos1

iTrader: (5)

ive removed the baileys one on mine

and bought a ggr 3 port seporater

1 hose to block under inlet

1 hose to block under turbo

1 drain to sump

1 to atmosphere

im going to have to block the one in the cam cover

really wish i hadent drilled it in the first place

scotty4130

what diameter of pipework and fixings on the tanks are recommenbed, i've a jap universal kit here, just want to do a few measurements before going any further with it.

mk2rstaff

not to sure on that mate

rinus_2005

iTrader: (1)

just curious, anyone ever measured the blowby pressure in the engine before and after modifying the breathing system?