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14 Tooth Oil Pump Gear Testing
https://slantsix.org/forum/viewtopic.php?t=65228		 Page 4 of 7
Author:  MJF [ Thu Aug 20, 2020 4:31 am ]
Post subject:  Re: Oil Pump Gear Work
I haven't had any gear failures yet, but I spin my 170 6000+ at least every week. So definetly interested of this new design :D
Author:  Doctor Dodge [ Thu Sep 17, 2020 11:03 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Oil pumps with 14 tooth gears were shipped to a couple of members for testing. Hopefully we can get some "real world" feedback in the near future.
My fingers are crossed that these new oil pump drive gears resolve the drive gear failure problem that keeps popping-up.
DD
Author:  Reed [ Thu Sep 17, 2020 12:30 pm ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
I will document the install and post periodic inspection pictures. 8)
Author:  Rick Covalt [ Fri Sep 18, 2020 8:03 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
I will do the same! Thanks Doug!
Author:  Greg Ondayko [ Fri Sep 18, 2020 8:42 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
How many got sent out?

Greg
Author:  Doctor Dodge [ Fri Sep 18, 2020 10:19 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
So far, I have built 3 SL6 oil pumps with the new 14T gear.
2 of these pumps were sent-out to members w/ trucks (Reed & Rick C) .and I have the third, running in an engine, on a "static" test stand.
DD
Author:  THOR [ Fri Sep 18, 2020 10:24 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Hey Doc,

I'm actually in the middle of prepping my (used and beaten) engine to go into my 58 Plaza. I could be another tester since I don't really care if there's a failure on it. I still have the hardened gear pump you sold me years ago as a backup.

Let me know!

~THOR~
Author:  Rick Covalt [ Sat Sep 19, 2020 9:25 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Mine arrived today.

Will let you know when it is running.
Author:  Doctor Dodge [ Sat Sep 19, 2020 9:33 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Rick has a rebuilt factory die cast pump, 5/8 impeller size.
In theory, it is this type of pump that will show the lowest hot idle pressure readings with the slower 14T rotating speeds.
Question is... how low will it go? (the one I have goes down to 25 psi @ 700 RPM)
DD
Author:  Reed [ Sat Sep 19, 2020 8:11 pm ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Got mine today. I will install it ASAP.
Author:  Dart270 [ Sun Sep 20, 2020 5:01 am ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Sounds great, guys. Thanks for your work.

Lou
Author:  Tim Keith [ Sun Sep 20, 2020 7:09 pm ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
I need to 3D print myself a set of new teeth.
Author:  '67 Dart 270 [ Sun Sep 20, 2020 9:24 pm ]
Post subject:  Re: Oil Pump Gear Work
Quote:
I haven't had any gear failures yet, but I spin my 170 6000+ at least every week. So definetly interested of this new design :D
I ran my 225 very easy, nowhere close to 6000 rpm, still lost two gears. Of course, after that i learned about the cam button. Haven't had an issue since (but using hardened and worked in oil pump gear, thanks DD!).

Question for DD: do we have statistics on failures vs cam button modification?

brian
Author:  Doctor Dodge [ Mon Sep 21, 2020 1:20 pm ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
We never had any feedback on results, after adding a positive cam stop.
https://slantsix.org/articles/oil-pump- ... esults.jpg
DD
Author:  Greg Ondayko [ Mon Sep 21, 2020 3:55 pm ]
Post subject:  Re: 14 Tooth Oil Pump Gear Testing
Mine failed in my ruster engine build after 4+ years of drag racing with a ~2000 production year Schneider cam and cam button.


Greg
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