I found drain sizes

[Liquid_Neon]

I searched and searched but no one ever seems to know what I am talking about. I found the sizes for the pcv system and turbo drains. 5/8 or 16mm is the normal size I think everyone knows about, but that damn valve cover drain back pipe is HUGE! 7/8 or 22mm for only about 4 inches. This is also the size of the actual pcv valve tube itself on the fwd model, with that huge L tube that goes from the center breather to the manifold.

Basically I made this so someone can search and hopefully find it

[float_6969]

Thanks!

[mdb4879]

My problem wasn't finding the sizes (although I didn't search, I just measured them as you did). It was finding a hose for the 7/8" drain. In short, I couldn't, lol. What I ended up doing was using 3/4" heater hose and stretching it over (the stock hose after taking a good look seemed to be stretched 3/4" anyways). Idk how long it'll last since heater hose isn't made to resist petroleum product, but it'll do for now.

[louiswun]

I use 19mm silicone hose to replace that 7/8 or 22mm without any problem.



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[float_6969]

IIRC, when I replaced that hose, I found some random 21mm silicone hose on ebay. It might have been for a Honda now that I think about it.

[Liquid_Neon]

I ended up ordering a silicone turbo drain tube for a diesel truck, they apparently are 7/8 haha.