Spool Type Head Drain

[portaz]

Hello again,

While my sump is off I kinda thought about the drain installed there. It's been welded into the fins on the lhs towards the bottom. I'm thinking it defeats the purpose really so I did some research some are on the left some on the right ( inlet side) as viewed from the rear. I'd prefer it to be correct but this seems to me that it would push oil up there to the height of the oil in sump and not allow flow. So in after some thoughts , I really don't mind getting another fitting welded if need be while sump is off.

Scott

[r33_racer]

Get a fitting welded on the inlet side of the sump, as high above oil level as practically possible. Make it -12AN and run that line directly to your catch can. If you want to use the rear head drain, then run it to the exhaust side of the sump, as it might actually have a better chance of working like a drain in that configuration, though you wont need it anymore if you do the -12AN crankcase vent on the inlet side.

[portaz]

I will get a pic tomorrow so is where it is ok? Runs from rear of head to exhaust side if sump but near the bottom under the jun baffle.

[r33_racer]

I would have thought above oil level would have been better then below.

However, that drain wont really do much. You need to vent the inlet side of the sump. So just get one welded on there and you will be sweet.