Tell me about tuna, can Options

[Porsche Rescue]

Have my first 914 with a "tuna can" sump and a front oil cooler.
Is the tuna can removed, cleaned etc. same as the stock screen during an oil change? Does it use the same sealing ring, compression washer as stock? Or do I need to find proper seal? Or should I just leave it alone?

[Dave_Darling]

The standard "sump gasket kit" contains the crush washer plus two gaskets--one for between the screen and the crankcase, one for between the cover and the screen. The "tuna can" does away with the screen (you still have the regular oil filter!) so you only use one of the gaskets.

Torque on the nut (yeah it looks like a bolt but the threads are on the inside, so it's a nut!) is the same as stock: 9.4 lb-ft. Yes, less than ten pound-feet!

The can does not, on my car, hang down as low as the engine bar. I understand that on a Bug (or other rear-engine'd application) it would be much more exposed to damage, but on the 914 it is right around the same fore/aft position as the rear wheels and seems to have zero issues. I have scraped my motor mount bar (!!!) but not the tuna can.

There was a bad batch (or two or more!) out there which had the oil pickup tube extension too long. With that extension, the can would never seal up to the bottom of the crancase, there was something like a 1/4" or 1/8" gap. You can cut material off the bottom end of the extension tube and correct that, but it is probably better to return the faulty parts to the place you bought them from and tell them to get the correct parts from Weltmeister. (Trust me, your retailers have already yelled at WM more than once about this!!)

Sadly, I do not know the lengths of the correct sized extension nor the incorrect-sized one.

--DD