Product review: Rothsport oil check valve, For the /6 owners Options

[Mark Henry]

Every winter or anytime I didn't drive my 914/6 conversion for more then 2-3 weeks my oil tank would drain down into my sump. Often this would result in oil on the shop floor and the neighbors would call the EPA or fire department when I started my 914 in the spring.
I was on the fence on buying a Rothsport oil check valve then a generous member here offered me one for free (IMG:style_emoticons/default/blink.gif)
Story was he bought one, never looked at it and tossed it into his parts bin, only to find out he accidentally bought two. He said I've helped him out a lot over the years and he was just playing it forward.
So a big shout out to Mark, member mzapisek, Thank you. (IMG:style_emoticons/default/pray.gif)

So this isn't a just got the package in the mail and it "looks" like it works great worthless review. (IMG:style_emoticons/default/dry.gif)
I've had this in 914 for almost 4 months and I've been driving at least every 2nd day for the last 3 months.
This one is actually the wrong hose size for a 914, but that didn't matter to me as my conversion uses non stock (NPT) adapters. I made new adapters, bought a new late 911 S hose and cut it to fit. But only the check valve nipple size is different, the body and the valve size is still the same. For a stock feed line 914/6 get the smaller nipples, For -AN hose you will have to make adaptors for the check valves metic sized nipples. The valve is a unique cone mounted to a bronze bushed shaft. I can't see any way it could fail, and if it did it would be in the open position.
To install you cut 1-1/2" out of the hose and use the supplied ABA clamps torqued to 35 inch pounds. The big tank/engine printing on the valve make proper orientation foolproof. I bought 2 extra clamps from Belmetric for my S hose adapters and BTW these are NOT the common cheap hose clamps.

Once installed I filled the tank with 10 liters of oil, checked the level and then the car sat for 3-4 weeks. The oil level never moved.
Driving it has made no difference, on startup I have instant oil pressure exactly the same as before.

I lie... it made one huge difference, I no longer have to run the engine to check the oil!
Of course I quad-triple checked this both ways till I was confident, when running it shows about a 1/4 dipstick fuller than when it's not, but it does this repeatedly. It's so nice to be able to check my oil before starting the teen, especially when I'm in good clothes.

So out of 10 I'd give the Rothsport oil check valve a 9.5/10 losing a half point to price. Since I'm a CSOB it would lose a full point, but I'm so happy with the oil check improvement I gave it a half point back.
Included with the valve is 2 ABA hose clamps.
Yes, I recommend this product.

https://www.rothsport.com/Products/Engine/O...heck-Valves.htm