Anyone else?

DeathBySnuSnu · Jan 28, 2016

Remember the pump cover from a few pages back?

Trying to finish it up. Completing the machining of the smaller details.

Drill and tap to size.

For the oil thermo switch on the fan.

So it is nearly finished.

Finished the oil port through the bolt center.

Now to seal the bolt head to hole.

I am thinking o ring. Hence the chamfer.

I may have to put a groove under the bolt head.*

I still might find one that fits the chamfer only.

stinger608 · Jan 28, 2016

Do basically like and oring boss seal? Pretty much what your thinking!

DeathBySnuSnu · Jan 28, 2016

A custom 30mm pump and filter with the oil "out" fitting adjacent to the cooler and an "in" fitting tapped into the case adjacent to the cooler on the other side.

Steel cover, no gasket, tighter pump tolerance, no sucton leaks or airiated oil, minimum oil lines.

DeathBySnuSnu · Jan 28, 2016

I dont see this working on a normal setup.*
It would have to be "full flowed".
The pump and the case holes plugged.
Then an "out" fitting cover.
And the case tapped, or possibly that oil pressure piston adapter, oil port back into the case oil galley.*

Buna N o rings are good to 220f.
These are #-037 viton o rings, good to 500f.
.062 dia in a .052 groove, .070 Wide.
.010 projection.

stinger608 · Jan 28, 2016

DeathBySnuSnu said:
I dont see this working on a normal setup.*
It would have to be "full flowed".
The pump and the case holes plugged.
Then an "out" fitting cover.
And the case tapped, or possibly that oil pressure piston adapter, oil port back into the case oil galley.*

Buna N o rings are good to 220f.
These are #-037 viton o rings, good to 500f.
.062 dia in a .052 groove, .070 Wide.
.010 projection.

Right, I knew it was a "full flow" design bro. That is what I'm using currently and have an extra pump set up the same way. I ended up using an oil bypass valve and going full flow on my trike.

Oh you are using Viton orings! Can't get any better than that for sure. Usually I have seen Viton rings in a kind of brown color. Usually don't seen them in black. Used many Viton rings in Cat high temp applications in the past.

DeathBySnuSnu · Jan 28, 2016

I know you understand full flow mods.
But for everyone else reading this i wanted to be clear.

A lot of the stuff i am doing is a long string of mods to make something function the way i want it to.

Very little of mine is a one item bolt on and not for the faint of heart.

But in the end i hope to have a lot of oil flow at reasonable pressure while using thin synthetic oil.

DeathBySnuSnu · Jan 30, 2016

An idea of how much the axles are shortened.

I guess I am gonna blast and paint the end castings.

Did think of remaking them out of something prettier.

DeathBySnuSnu · Jan 31, 2016

The o rings I used on the oil pump.

All three are the same part.

DeathBySnuSnu · Feb 2, 2016

I wonder just how much port i need to have to run the bigger motor?

stinger608 · Feb 2, 2016

DeathBySnuSnu said:
I wonder just how much port i need to have to run the bigger motor?

Hmm, from the looks of the picture there is going to be a bunch of porting. At least that's what it appears from the Prusion Blue impression. Unless that is an illusion from the image. Looks as though a bunch of the bottoms need to be machined to match the intake ports? Or is that aluminum color the tapering in the ports?

DeathBySnuSnu · Feb 2, 2016

Yes I did start whittling on them.

The shiny part is where.

My template on the port.

Of course these are big valve, big d port 050 heads to start with. But they were originally designed more for a 2110 to 2180 sized engine and I am now a 2387.

DeathBySnuSnu · Feb 7, 2016

Getting there.

I suppose that is big enough.

No flow bench to be able to get any data.

Not full drag only, must be driven, so it is a balance between flow for rpm and velocity for a fun torque curve.

stinger608 · Feb 7, 2016

Yea, looking awesome bro!!!

DeathBySnuSnu · Feb 17, 2016

Finished the depth and diameter for the 94's

DeathBySnuSnu · Mar 4, 2016

Robot season for the little girlie is finally over.

Her team ended up 4th in the state and not going any further. Not to bad for their first year. Not to mention her team are probably the youngest at the competition. Her team is mostly the kids from the stem schools or private schools scholastic acedamy programs. So they are jr high age kids going up against high school kids.

So anyway... back to the scooter.

As the deck height is done, now to finalize the chamber volume.

Checking cc's it is looking like 58cc might be the finished size. Gives 9.9 static cr. That would be somewhere between 7.1 and 7.2 dynamic cr.

FuzzyWuzHe · Mar 4, 2016

Congrats to your daughter ... she'll get em next year ...

DeathBySnuSnu · Mar 15, 2016

Blasting and priming parts.

I put por 15 on the magnesium cases.

Dont Have any experience with it, but it sure seems tough.

Cutting these chrome dune buggy axle housings down to size. Don't you Just love to take brand new parts out of the box and saw them in two?

peteg59 · Mar 15, 2016

looks good DBSS. The engine case looks clean in paint.ThumbUp
Is the POR 15 heat rated?

DeathBySnuSnu · Mar 16, 2016

Por 15 does have a heat resistant paint.
This is not it though, this is also not a hot part.
The heads and cylinders will be done in something else.
I have cerakote thermal transfer ceramic for those.