Valve Cover Mod

Fiat 500s with Terbows.
Romanoaf
Posts: 70
Joined: Fri Feb 15, 2019 7:09 am
Location: SW Ont
Your Car's Year / Make / Model: 13 Fiat Abarth

Re: Valve Cover Mod

Post by Romanoaf » Thu Apr 04, 2019 9:53 am

That's going to clean up the area nicely.. Is AOS being replaced with a catch can?
13’ Abarth

mr16valve
Posts: 60
Joined: Wed Dec 12, 2018 8:31 am
Location: Greenville, SC
Your Car's Year / Make / Model: 13 Abarth 500
Your Instagram (Optional): tattedmikep

Re: Valve Cover Mod

Post by mr16valve » Thu Apr 04, 2019 1:41 pm

Yes. I deleted the AOS a few months ago. I capped the hole on the valve cover. The intake PVC port was capped at the intake using a 9mm silicone cap.
(the PVC valve - the actual plastic removable valve - it a ticking time bomb in my estimation. Not a matter of IF it will fail, but WHEN it will fail.
Stock 18psi was pushing much less the additional psi generated by phase 2).
We extensively dissected & tested (a spare one) the plastic pvc spring check valve before removing it from the car.

I used a 28mm bung plug to cap it while I waited for the valve cover to come back from powdercoaters.
I shaved the lip (on the new one) and then tapped it for an Earl fitting. The vacuum pull is coming from the large port on the ATM for the CC.

The Neon guys deleted their AOS long ago with no problems - It looks like it is nearly the same AOS as the 500 uses.
Before deleting it, we bought one from pull a part & dissected it to fully understand what it did & how it did it.
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Romanoaf
Posts: 70
Joined: Fri Feb 15, 2019 7:09 am
Location: SW Ont
Your Car's Year / Make / Model: 13 Fiat Abarth

Re: Valve Cover Mod

Post by Romanoaf » Fri Apr 05, 2019 7:14 am

How were you venting the crank case with the bung capped?
13’ Abarth

mr16valve
Posts: 60
Joined: Wed Dec 12, 2018 8:31 am
Location: Greenville, SC
Your Car's Year / Make / Model: 13 Abarth 500
Your Instagram (Optional): tattedmikep

Re: Valve Cover Mod

Post by mr16valve » Fri Apr 05, 2019 7:24 am

I was venting through the other opening in the valve cover.
My OEM valve cover had hard 2 outlets.
I bought a valve cover from a 2015 for my mod, as it only has 1 hard opening (its other opening was in the removable oil filler stack).
Attachments
2019-04-05 08_23_04-IMG_4448 - Windows Photo Viewer.jpg
2019-04-05 08_23_04-IMG_4448 - Windows Photo Viewer.jpg (188.94 KiB) Viewed 2914 times

Romanoaf
Posts: 70
Joined: Fri Feb 15, 2019 7:09 am
Location: SW Ont
Your Car's Year / Make / Model: 13 Fiat Abarth

Re: Valve Cover Mod

Post by Romanoaf » Fri Apr 05, 2019 7:58 am

That’s what I figured, just couldn’t see it in the pictures
13’ Abarth

mr16valve
Posts: 60
Joined: Wed Dec 12, 2018 8:31 am
Location: Greenville, SC
Your Car's Year / Make / Model: 13 Abarth 500
Your Instagram (Optional): tattedmikep

Re: Valve Cover Mod

Post by mr16valve » Wed Apr 10, 2019 4:20 am

Some random pics I just found - this was from when I was shaving it all down.
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