I was talking with 19Doug90 about the pcv going into the intake and we both agreed that this was kinda stupid. Our idea was could we route the pcv to a canister or something so that no more sludge gets into the intake? I don't know if anyone else has thought of this but it's just a thought. Thanks

 

If your motor has high mileage then you'll have some "blowby" which tends to cause oil to get in the intake through the PCV. You can run it through a separator tank or try installing a inline fuel filter in the PCV line to block/separate any oil flow.. make sure the PCV valve is not sucking up oil in the valve cover. Many aftermarket valve covers have the holes in the wrong spot on the top and no oil separator baffle in them.

A healthy engine with proper vlave cover baffling and venting will not suck up much oil at all. The PCV is too benificial[ even on a modified street motor, to eliminate it.

the only cure for a motor with exessive blowby is a rebuild.

 

So installing a filter before the pcv goes into the intake would be your suggestion? Would that stop the "sucking power"?

 

???????? a pcv system does not reduce power output at all.

No, it just traps any oil that gets sucked up.

 

Well I just wanted to stop all the sludge from getting into the intake

 

thats what it does

 

a pvc system will over time begin to build up some oil resedue in the intake because not all of the oil mist is stopped by the baffle. You DO want a pvc system. It prevents oil leaks in the engine because of the negative pressure.

However, a better setup, would be to put a good catch can between the pvc and the intake. The catch can would catch the remaining oil mist and prevent if from getting into the intake.

Probably the best catch can for this is HERE . There not cheap however, they are probably the best.

 

Cool thanks!

 

steve was talking about the sucking power as in the intake vacuum which is what operates the pcv valve, and if having a filter would effect that vacuum.

The catch can is basically exactly what i want, too bad its as pricey as it is. This question basically came about because i had pulled apart my tpi system once or twice and the runners perticularly were coated completly black on the inside. And my motor only has 90 000 kilometers

 

What about the one on the passenger valvecover that goes into the intake? People usually install breathers on there, as I have done, and I havent noticed any adverse effects as of yet...

 

Your oil will get dirtier sooner than it would with a PCV valve installed.

 

Nono, I still have the pcv installed, but this seems to be a seperate system.

 

You mean air cleaner, not intake? That's where the PCV system gets fresh air from. Doesn't matter if you have a breather or a hose to the air cleaner, as long as you have some way for clean air to get in. PCV doesn't do much without it.

 

If you have a carb, the opposite valve cover connection,from the PVC, goes to the carb air cleaner housing. If it is a TPI system it goes to the throttle body. The purpose of this is to feed clean filtered air into the engine as the PVC sucks out the contaminated air.

 

On carb engines the PCV goes to the canister then gets routed back up to the carb, might be the same on TBI engines as well I dont remember.

If you running a TPI just get a clear fuel filter and run it between the valve cover and the vacuum port. When it gets dirty change it. This is a trick I came up with for MPFI fNords and shared it with TGO a few years back. It works great on dry induction systems, I'd guess it reduces oil build up around 90% in the intake.

 

With a MAF all the fresh air drawn in must be drawin in through the intake ducting before the MAF. This is so that the air drawn in by the PCV system can be accounted for. With a breather, there will be air drawn in by the motor but no additional fuel added in to compensate for it, resulting in a lean condition.

 

Which is nice, but his LG4 isn't going to have a MAF.

 

Oh, thought it was in reference to the thread starters vehicle and not an LG4