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14 Tooth Oil Pump Gear Testing
https://slantsix.org/forum/viewtopic.php?t=65228		 Page 1 of 7
Author:  Doctor Dodge [ Sun Aug 16, 2020 2:57 pm ]
Post subject:  14 Tooth Oil Pump Gear Testing
The photo below tells a story about the oil pump gears shown.
Any guesses on what that story is?
DD

Image
Author:  SlantSixDan [ Sun Aug 16, 2020 2:59 pm ]
Post subject:  Re: Oil Pump Gear Work
H'mmmm. Is 3D printing involved in this story?
Author:  Doctor Dodge [ Sun Aug 16, 2020 4:05 pm ]
Post subject:  Re: Oil Pump Gear Work
Yes, the white gear shown was 3D "printed".
DD
Author:  Rick Covalt [ Sun Aug 16, 2020 5:24 pm ]
Post subject:  Re: Oil Pump Gear Work
And can we do anything with it?
Author:  SlantSixDan [ Sun Aug 16, 2020 5:39 pm ]
Post subject:  Re: Oil Pump Gear Work
I donno yet, but it sounds like the start of a new, more cost-effective, faster way of making new oil pump pinions that are actually the way they're supposed to be.
Author:  Jase [ Sun Aug 16, 2020 7:34 pm ]
Post subject:  Re: Oil Pump Gear Work
Quote:
Yes, the white gear shown was 3D "printed".
DD
Please excuse my ignorance here: I've heard of 3D printing, But have no idea what that white gear is made out of.. and or how such printing is done in a way that ends up with a steel gear being ready for it's intended use.
Author:  plymouthcranbrook [ Sun Aug 16, 2020 8:26 pm ]
Post subject:  Re: Oil Pump Gear Work
https://markforged.com/metal-x/

https://all3dp.com/1/3d-metal-3d-printe ... -printing/
Author:  emsvitil [ Sun Aug 16, 2020 8:39 pm ]
Post subject:  Re: Oil Pump Gear Work
Would printed metal be hard enough?

smooth enough?
Author:  Greg Ondayko [ Mon Aug 17, 2020 4:36 am ]
Post subject:  Re: Oil Pump Gear Work
Cool stuff Doc, you getting into the 3D printing Hobby?


Greg
Author:  Doctor Dodge [ Mon Aug 17, 2020 3:36 pm ]
Post subject:  Re: Oil Pump Gear Work
The plastic gear was "step #2,
We designed a new SL6 oil pump gear and proto-typed it with a 3D printed gear.(stereolithography)
The material used is soft, much like ABS plastic so it was not intended as a final product, just to prove the new design.
Truth is that the SLA gear was way too soft, It was impossible to really get good gear contact & load info. off t so we took the cnc file and machined another gear, out of aluminum. (thanks Wayno) :wink:
All this led to a small lot of pre-production gears... machined at a gear shop.

DD
Author:  Reed [ Mon Aug 17, 2020 4:10 pm ]
Post subject:  Re: Oil Pump Gear Work
Today- the oil pump gear.
Tomorrow - THE ALUMINUM HEAD! :twisted:
Author:  volaredon [ Mon Aug 17, 2020 4:54 pm ]
Post subject:  Re: Oil Pump Gear Work
I picked up 2 NOS /6 oil pump gears off of feebay recently. The old blue and black MOPAR packaging.
Author:  SlantSixDan [ Mon Aug 17, 2020 6:06 pm ]
Post subject:  Re: Oil Pump Gear Work
Quote:
All this led to a small lot of pre-production gears...
Now we need someone to write lyrics and sing "Pre-Production Gears" to the tune of Bette Davis Eyes.
Author:  Doctor Dodge [ Mon Aug 17, 2020 7:42 pm ]
Post subject:  Re: Oil Pump Gear Work
Quote:
I picked up 2 NOS /6 oil pump gears off of feebay recently. The old blue and black MOPAR packaging.
It is nice to find / use the original Chrysler produced oil pump gears. Those seem to have less failures.

Truth is, we still see oil pump gear failures, especially in high RPM / performance Slant engines..
I have personally tried many things to fix this issue but it still "bites" me (and others) every so-often.
This new gear design is the latest effort to prevent failures.

So what is different with this new gear design? :?
DD
Author:  Rick Covalt [ Tue Aug 18, 2020 2:49 am ]
Post subject:  Re: Oil Pump Gear Work
Quote:
So what is different with this new gear design?
Please tell us? :D
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