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Godless Commie decides to build a catch can...

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Godless Commie decides to build a catch can...

 
Old 06-18-2019, 08:18 AM
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About the drainage...

I came up with the vacuum idea because there is no room under or below the breather tank for a petcock or for holding a cup under the drain.
Hence the approach to empty it from the top, using readily available engine vacuum.
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Old 06-18-2019, 10:49 AM
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Originally Posted by Godless Commie View Post
No, there will be a section of rubber hose (2 hoses) to connect the hard lines to the breather tank ports.
I feel better.

Re: vacuum, no need to concern about fumes, as I would think you would do this on cold oil.
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Old 06-18-2019, 03:32 PM
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Originally Posted by Godless Commie View Post
* It will raise fewer eyebrows come inspection time.
I feel like you are well abd truly past the point if raising not raising eyebrows at inspection already....
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Old 06-18-2019, 05:35 PM
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Originally Posted by Godless Commie View Post
About the drainage...

I came up with the vacuum idea because there is no room under or below the breather tank for a petcock or for holding a cup under the drain.
Hence the approach to empty it from the top, using readily available engine vacuum.

a pic from my build, 4 years ago. did I steal theirs, or did they steal mine?





of course, this was when I was set on dumping oil into my intake. decided that was bad.
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Old 06-18-2019, 08:32 PM
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Today's plan was getting everything done and visiting the aluminum welding shop.
I just took my sweet time instead.
Welding and powdercoating will have to be on Wednesday, or Thursday even.
(I really do not want to haul everything on my bike, so I will have to borrow my sister's car for a day.)

But, there was progress:






Hardline "legs" are done.

I also made some spacer clamps to hold things in place.



All the bare aluminum will be black like the VC. I am pretty satisfied with how it looks so far.
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Old 06-18-2019, 08:32 PM
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Old 06-18-2019, 08:35 PM
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I also drilled and tapped the 30x10 aluminum bars I will be lining the inside of the tank.

That took longer than I expected.






More to come...
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Old 06-18-2019, 08:44 PM
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Originally Posted by sixshooter View Post
Are you opening up the internal passages in the valve cover?
Sorry, I don't know how I missed your question.

I had already enlarged the "hole" between the center section and the hotside baffle. Is there more to be opened up?

I guess the best thing to do would be to take a picture of the bottom side of the VC, and we can take it from there...
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Old 06-18-2019, 08:44 PM
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Originally Posted by DNMakinson View Post
I feel better.

Re: vacuum, no need to concern about fumes, as I would think you would do this on cold oil.
This.
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Old 06-18-2019, 11:09 PM
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Yes, center to hotside orifice.

Good work.
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Old 06-19-2019, 08:52 PM
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Progress...

Here's a trick I use to mark screw/bolt hole locations - I have used this method on a ton of things from brake caliper adapters to miscellaneous blanking plates...

Get proper size screws/bolts for the job and cut the heads off..






Then use the grinder wheel to sharpen the cut tips to a point.
I don't have a lathe, so a cheap drill in a vise works.


Then, thread the screws/bolts in their holes...



A small hammer comes in very handy here...


Hold the cover in place, and lightly tap on each pointy stud...



All your screw holes are belong to us!
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Old 06-19-2019, 08:57 PM
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That was my PSA for the day...

Anyway.

I briefly considered drilling a bunch of holes on a piece of aluminum sheet to hold the steel wool, then I remembered I actually have some wire mesh tucked away somewhere.
(Left over from my vacuform project)

So I used that instead...




And, this is how it will sit in the breather tank...


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Old 06-19-2019, 08:59 PM
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Inlet tubes from the engine will extend past the oil trap, and the steel wool will be in this section.
(Not the actual steel wool I will be using, that gunky stuff is just modeling for the photo)

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Old 06-19-2019, 09:04 PM
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The two inlet pipes will be welded in place.

I know I was talking about using grommets for them, but they will not move around if they are welded.



The only thing left to do is the drain doodad I had mentioned earlier. It will be welded to the lid, and come up with it when I open it up.
That's pretty much it. I just need to get it welded and smooth the edges.
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Old 06-19-2019, 09:07 PM
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Oh, and there is the sight glass, too.
I reinforced the 2 mm aluminum wall with a piece of 3 mm thick aluminum so the 1/8 npt fittings would have some meat to bite.




I am not concerned about cleaning off all the sharpie markings. Media blasting before powdercoating will take care of that.
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Old 06-21-2019, 12:30 PM
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Originally Posted by Godless Commie View Post

Who makes that tube bender?
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Old 06-21-2019, 01:40 PM
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Cool to see the custom fab work and creativity. Where did you hide the oil cooler? A bunch of us sure know the pain of getting that “one more thing” under the hood. I put a VTA catch can about where you have your BOV but did the IC piping down and around.
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Old 06-21-2019, 02:15 PM
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Originally Posted by IMSTuner View Post
Who makes that tube bender?
I really can't remember. It was a French brand.
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Old 06-21-2019, 02:19 PM
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Originally Posted by Turbomack View Post
Cool to see the custom fab work and creativity. Where did you hide the oil cooler? A bunch of us sure know the pain of getting that “one more thing” under the hood. I put a VTA catch can about where you have your BOV but did the IC piping down and around.
Thanks.
I do not have an oil cooler, just the factory "warmer" on the block.
The hood vent does wonders even with two turbos adding heat to the oil.
The highest oil temp I have seen with the current setup is 102 C, on a very hot day.
As soon as I get up to speed, temps go down quite a bit.
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Old 06-21-2019, 02:32 PM
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Originally Posted by Godless Commie View Post
I really can't remember. It was a French brand.
Thanks
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