convert twist in breather cap to push in?

[kirkallen143]

Anyone know of a grommet that can convert your twist-in oil breather cap to a push-in style? I am trying to install a K&N styled filtered breather to help with crankcase pressure and are keeping the pcv valve.

I have a Mr. Gasket twist-in breather now, but I don't think it is relieving enough pressure when the turbo boost kicks in (dipstick keeps blowing out). I do have a pcv for a turbocoupe and an inline check valve before that installed. Maybe it is blow-by from the rings not setting correctly, a leakdown test would show that, correct? Gosh I hope not!

Isn't there an old way to help re-seal the rings? Using Bon-Ami or something? Would it work, or not worth the time to do it now?

Thanks for any insight.

Kirk
ps. I did find that the opening underneath in the twist-in breather cap was just barely cracked open, maybe an 1/8" or so. I opened it all the way, but have not tested.

 

[Bort62]

I have the same issue. I just modified my VC to accept a bolt on breather.

I don't think that it is evidence of especially bad rings, it's just that some boost makes it past them and as a result pressurizes the crank case a little.

I keep blowing oil pan gaskets.

 

[CoupeBoy]

Not to get off topic but could you build a vent from the VC or the location on the block where the road draft tube used to fit, then route a tube up to the 'inlet' side of the turbo plumbing?

Would that be too much vacuum?

-ron

 

[kirkallen143]

Not to get off topic but could you build a vent from the VC or the location on the block where the road draft tube used to fit, then route a tube up to the 'inlet' side of the turbo plumbing?

Would that be too much vacuum?

-ron

Something similar like you mention:

I have heard that some folks route the pcv line to a oil/air filter of some sort and then from there to the intake of the compressor housing.

http://www.theturboforums.com/smf/index ... tach=86259

I will probably mod the twist-in to accecpt a clamp on breather. If that doesn't work then the above looks like my next step.

Kirk

 

[Bort62]

Not to get off topic but could you build a vent from the VC or the location on the block where the road draft tube used to fit, then route a tube up to the 'inlet' side of the turbo plumbing?

Would that be too much vacuum?

-ron

That is exactly what I have done. Jury is still out on the success however...

 

[CoupeBoy]

When I typed that up I was thinking of those HP gain tests they perform with high powered scavenging pumps that create vacuum in the crankcase. It's supposed to decrease on oil 'vapor' and 'windage'/drag that happens when a crank spins through the droplet vapors.

-ron

 

[JackFish]

Anyone know of a grommet that can convert your twist-in oil breather cap to a push-in style?

I may have such an adapter. I'll have to go through my stash and find it and post a photo. It's a Ford part, IIRC.

 

[JackFish]

Sorry for the crappy quality photo. It's just kind of an oddball part anyways.
This adapter has a 1 1/4" diameter pipe.

 

[kirkallen143]

JF, that is fantastic! Just about what I have been looking for. Thanks again.

Kirk