[CDN SS]

Guys I am venting both valve covers to a common puke tank with a breather on top ......... seems to be workin fine ........ Does the breather on the puke tank help to pull the pressure out of the motor or should I add a breather on one VC to allow more air into the motor ??

 

[Mike]

Don't see how another vent would do anything unless your vents/puke tank are too small to do actual venting.
Adding another vent per VC would just be adding another vent per VC.
Your already venting to atmosphere ,just giving a shorter route with vents on the VC.

 

[CDN SS]

Tank is a dual AN 12 inlet Stefs Breather tank ..........my idea was to only put one breather on one VC my thinking ( pbly wrong) was that it would pull air into the engine and push the pressure out the vents to the puke tank ?? I agree I dont need another vent

 

[Mike]

Unless I'm missing something here,there's nothing pulling air in ,just breathers venting out.
On an OEM system ,there's a breather/air cleaner attachment on one side and a PCV valve on the opposite side attached to a vacuum source.
Air is drawn in through the breather/air cleaner by the vacuum applied on the opposite VC.
Again ,don't see anything that pulls air into the engine from what you've described.

Closed system as used by GM

 

[CDN SS]

No nothing pulling air in from the VC .........there is a Breather / fliter on the puke tank .........thats what I am asking does that breather on puke tank pull air in or do I also need a breather on a VC

 

[camaroman7d]

The breather on the 'puke" tank is just a remote valve cover breather, they do the same thing. The good thing about a tank is it keeps the valve covers clean. I would not add another vent to the VC if you already have both of the VC connected to the "puke" tank.

 

[Rex Auftinn]

Bill,


Your intention by installing the tank into which you're venting your crankcase vapors is to accomplish what purpose?

Street car? Street-strip? Track only? 1/4? Circle track?

Have seen similar & various such arrangements on circle burners back to the early '60s...Rex White's '61 specifically.


Sounds interesting.

 

[CDN SS]

The breather on the 'puke" tank is just a remote valve cover breather, they do the same thing. ]

Camaroman you understand my question
Yes the puke tank breather is a vc type breather they do the same thing ... ......... that is what I was looking for someone to confirm ....... someone who currently runs a puke tank with a breather would be helpful......lots run puke tanks but not with a breather on tank the breathers are on the VC ....... as I said I been running it this way with no issues .both VC vented to one tank with a Breather on top but some have suggested I should have an additional breather on the VC I was of the opinion the puke tank breather was all I needed ........ keep it coming

 

[Rex Auftinn]

...keeps the VCs clean...

Is this the rationale for the tank, or does it serve an additional purpose?

 

[jbird]

Here's the deal. Air does not get pulled into the engine, regardless of whether the breathers are on the valve cover, or remotely mounted on a puke tank. Air gets pushed out of the engine by blow by, or crankcase pressure. Whichever you want to call it. The only way air is going to be pulled into the engine is if you run a PCV valve, or a vacuum pump. If you are running a PCV valve, it really doesn't matter where the breather is. As long as there is one somewhere.

 

[aukai]

Bill, my understanding of the system is, if there is crank case pressure and it is routed to the puke tank the residual oil vapors will condense in the tank. They need to be pushed there. If you add a breather to the VC there is no pressure for the accumulator to catch anything......I think.

 

[CDN SS]

Bill, my understanding of the system is, if there is crank case pressure and it is routed to the puke tank the residual oil vapors will condense in the tank. They need to be pushed there. If you add a breather to the VC there is no pressure for the accumulator to catch anything......I think.

Thats how I understood it too :beers:........ but an "internet expert" saw a pic of my engine and told me I needed to add a vc breather ........

Thanks Jay you explained very well .:thumbsup:....... I run the Moroso vacuum pump vent fittings at the VCovers to the tank so get almost zero oil in tank just vapors .....I will leave it alone

 

[F1 Speed]

The breather on the 'puke" tank is just a remote valve cover breather, they do the same thing. ]

Camaroman you understand my question
Yes the puke tank breather is a vc type breather they do the same thing ... ......... that is what I was looking for someone to confirm ....... someone who currently runs a puke tank with a breather would be helpful......lots run puke tanks but not with a breather on tank the breathers are on the VC ....... as I said I been running it this way with no issues .both VC vented to one tank with a Breather on top but some have suggested I should have an additional breather on the VC I was of the opinion the puke tank breather was all I needed ........ keep it coming

I asked Mike Lewis about this when he built my engine and he said 1 breather tank would be fine.
Been running 2 (1 each side of the Radiator) Peterson Breather tanks to keep the top of the VC's clean looking with no problems for a couple years now. 1 -12 fitting on the front of each VC works really well. Made an oil fill system using an inline radiator hose filler neck, 2 short -12 hoses that screw onto the 2 -12 VC fittings to add oil through the same fittings. When I'm done, I just unhook it and reattach the 2 -12 breather tank lines. Works really slick and keeps things clean and simple.

The breather on the 'puke" tank is just a remote valve cover breather, they do the same thing. The good thing about a tank is it keeps the valve covers clean. I would not add another vent to the VC if you already have both of the VC connected to the "puke" tank.

:yes: Exactly

 

[CDN SS]

Great Thanks ........ I run those same an12 fittings only on the rear to the one tank with breather ..... do you ever get any oil accumulation in the tank?

 

[zombie1969]

I like that pully and belt setup for the alt.Who makes it?

 

[F1 Speed]

I like that pully and belt setup for the alt.Who makes it?

It's a mix of different stuff but the HTD Belt set-up is.....
Black Mountain Precision
http://www.blackmountainprecision.com/

 

[F1 Speed]

Great Thanks ........ I run those same an12 fittings only on the rear to the one tank with breather ..... do you ever get any oil accumulation in the tank?

Very minimal amount. Maybe a tablespoon or so total between the 2 tanks between oil changes.

 

[camaroman7d]

Here is how I ran mine, the original intention was to run a PCV in the other VC, decided against the PCV, no issues what so-ever.

 

[CDN SS]

Very minimal amount. Maybe a tablespoon or so total between the 2 tanks between oil changes.

Thanks ....... same for me almost nothing :thumbsup:

 

[CDN SS]

Here is how I ran mine, the original intention was to run a PCV in the other VC, decided against the PCV, no issues what so-ever.

Thanks

Now thats a Buick :yes: