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Coated steel oil pump gear Update #2659413
05/26/19 06:39 PM
05/26/19 06:39 PM
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central il.
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second 70 Offline OP
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Worked on the car today and here are a couple of pictures of the crane gear I put in three years ago on a used solid roller cam and HV melling pump. No wear except where I had to use needle nose to remove it. Cam looked great too.

Mike

326E10E4-3513-4512-BF77-94990003C471.jpegDFBA6150-122D-4DFE-8042-15D30BC9E12A.jpeg
Last edited by second 70; 07/10/19 11:42 AM.
Re: Coated steel oil pump gear [Re: second 70] #2659423
05/26/19 07:32 PM
05/26/19 07:32 PM
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Wichita
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GY3 Offline
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Same experience here. I have over 5700 street miles and hundreds of dragstrip passes on mine. I pulled it this Spring to manually prime the pump and it and the hydraulic roller cam gear looked like the day I put them in there.


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Coated steel oil pump gear [Re: GY3] #2659442
05/26/19 08:19 PM
05/26/19 08:19 PM
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Ontario, Canada
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Stanton Offline
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What make are these ??

Re: Coated steel oil pump gear [Re: Stanton] #2659450
05/26/19 08:40 PM
05/26/19 08:40 PM
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Wichita
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GY3 Offline
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Originally Posted by Stanton
What make are these ??


Crane


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Coated steel oil pump gear [Re: second 70] #2659479
05/26/19 09:58 PM
05/26/19 09:58 PM
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Bend,OR USA
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Cab_Burge Offline
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Thanks, that is good to know up bow


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Coated steel oil pump gear [Re: Cab_Burge] #2659501
05/26/19 11:25 PM
05/26/19 11:25 PM
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Minnesota
Hemi_Joel Offline
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That is very good info, thanks for posting it. I have a crane gear but I was afraid to put it in because I thought it is too much of an unknown to run on drag week, where it could fail in the middle of nowhere. Now I have the confidence to install it. Thanks again


[img]http://i.imgur.com/boeexFms.jpg[/img]
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Re: Coated steel oil pump gear [Re: second 70] #2659527
05/27/19 06:41 AM
05/27/19 06:41 AM
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Charlotte, North Carolina
sgcuda Offline
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Gear looks great. Good info. Seems like much better option than bronze gear.

Re: Coated steel oil pump gear [Re: sgcuda] #2659588
05/27/19 10:51 AM
05/27/19 10:51 AM
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Posts: 12,587
Great Neck,LI,new york
hemi-itis Offline
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My bronze gear is 15 years old and the are showing their age.Good to hear all this as now I also will install one bow


HEMI-ITIS has no cure.
My condition is fully BLOWN!!
Re: Coated steel oil pump gear [Re: second 70] #2659592
05/27/19 11:09 AM
05/27/19 11:09 AM
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So. Burlington, Vt.
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fast68plymouth Offline
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Thanks for the update!!


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Coated steel oil pump gear [Re: fast68plymouth] #2659619
05/27/19 12:45 PM
05/27/19 12:45 PM
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Canada
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RobR Offline
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How much spring pressure ? something like 350/750 type of spring..

Re: Coated steel oil pump gear [Re: RobR] #2659632
05/27/19 01:29 PM
05/27/19 01:29 PM
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Utah and Alaska
astjp2 Offline
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HV oil pump or standard volume? I put one in my hemi with the HV pump, it has only 5 minutes of run time on it since I built it 8 years ago...


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Re: Coated steel oil pump gear [Re: second 70] #2659868
05/28/19 08:30 AM
05/28/19 08:30 AM
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S.E. Michigan
ZIPPY Offline
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Thank you, going to have to give that a try.


Rich H.

Esse Quam Videri




Re: Coated steel oil pump gear [Re: ZIPPY] #2659885
05/28/19 09:18 AM
05/28/19 09:18 AM
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Ontario, Canada
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Stanton Offline
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Why do the Mopar ones cost 30% more than all the others ?!?!?!?

Re: Coated steel oil pump gear [Re: second 70] #2659888
05/28/19 09:23 AM
05/28/19 09:23 AM
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Posts: 13,319
Marion, South Carolina [><]
an8sec70cuda Offline
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I think I'll definitely be getting one of these the next time I need one!


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
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Re: Coated steel oil pump gear [Re: second 70] #2659942
05/28/19 11:34 AM
05/28/19 11:34 AM
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West Coast, USA
jbc426 Offline
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I put that gear and hardened hex-end shaft in my RB when I changed the cam. Got it from Hughes. Remember, they expressly state on the instructions to only use it with a new cam. I guess the operating dynamics are much like a ring and pinion set. Keep them together once run.

Also, use a distributor shaft collar to limit how much the hardened gear can climb the cam gear during operation, which can dramatically effect the contact pattern between the cam gear and driven gear.


1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
Re: Coated steel oil pump gear [Re: Stanton] #2659997
05/28/19 01:05 PM
05/28/19 01:05 PM
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Val-haul-ass... eventually
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BradH Offline
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Originally Posted by Stanton
Why do the Mopar ones cost 30% more than all the others ?!?!?!?

90% less demand?
50% more material required?
"It's a Mopar thing"?

shruggy

Re: Coated steel oil pump gear [Re: jbc426] #2660002
05/28/19 01:08 PM
05/28/19 01:08 PM
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Val-haul-ass... eventually
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Originally Posted by jbc426
... they expressly state on the instructions to only use it with a new cam.

That's direct from Crane, who also states not to use it w/ high-volume or high-pressure oil pumps, IIRC.

I am curious how long a cam used w/ a bronze gear might still be OK to convert to one of these treated gears, considering the wear "should" be on the bronze gear up to that point.

Re: Coated steel oil pump gear [Re: BradH] #2660284
05/29/19 11:41 AM
05/29/19 11:41 AM
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central il.
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second 70 Offline OP
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The cam was around 10 years old it was a Melling high volume oil pump. I don't know spring pressure for sure but should be close to 200/450#. This is the bronze gear that I removed. I'm no expert but I couldn't see how a bronze gear could hurt the cam? The biggest exception I heard was it could hurt the coated gear if there was a burr or any of the bronze stuck on the cam surface.

849816D9-CC6C-4D4B-8A0F-E3CAB1C61AC1.jpgEAE24795-CD24-4E24-BCE6-C55F0E773CA5.jpg
Re: Coated steel oil pump gear [Re: Stanton] #2660435
05/29/19 07:14 PM
05/29/19 07:14 PM
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Wichita
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GY3 Offline
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Originally Posted by Stanton
Why do the Mopar ones cost 30% more than all the others ?!?!?!?


Why would you even consider buying anything from Mopar Performance?!

They quit supporting their "heritage performance cars" a long time ago. flame


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Coated steel oil pump gear [Re: GY3] #2660446
05/29/19 07:48 PM
05/29/19 07:48 PM
Joined: Oct 2005
Posts: 8,828
Ontario, Canada
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Stanton Offline
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Quote
Originally Posted by Stanton
Why do the Mopar ones cost 30% more than all the others ?!?!?!?


Why would you even consider buying anything from Mopar Performance?!

They quit supporting their "heritage performance cars" a long time ago. flame


Where did you see the words "Mopar Performance" ?!?!?

If you go on Summit's or Jeg's sites you will see that the "Mopar" gears cost close to 30% more than the Ford or Chevy. I don't know what MP sells them for.

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