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Ford 9N, 2N & 8N Discussion Forum
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Avoid these oil pump kits

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TheOldHokie

11-14-2017 14:43:55




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Just received these two kits today - neither one is usable and will be going back to the seller (Reliable Aftermarket Parts). The 9/16" gears were .006/.007 undersize. The 3/4" gears were worse - .012/.013 undersize.

TOH




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mike stegall

11-17-2017 02:07:27




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
you are like a surgeon of the n tractor oil pump...it IS the heart of the engine...it keeps it alive....thanks again for all your work



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bigbleeker

11-16-2017 17:48:07




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
I had a problem with a 2 inch exhaust elbow holes drilled of center from rap.they Wanted me to send back and then send back to manufacturer to see if it was wrong .i had already done some filling on elbow i bout it mine i should have noticed the holes sooner.i have had good results from many purchases from reliable just not that one.



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showcrop

11-16-2017 05:40:36




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
TOH, it is very charitable of you to offer them a means of helping their reputations much. If someone there has any smarts he will source some good ones and send them to you no charge for you to check.



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TheOldHokie

11-16-2017 04:54:32




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
Quoting Removed, click Modern View to see

All of the gears can be purchased individually. I have the original Ford specs for the pumping gears. They are "unique" in that they are 9 tooth pinions with standard tooth form on an oversize pitch circle. Here is the data for 8N-6612 - 8N-6610 is the same with the exception of the D-hole bore. Presumably 52-6610/52-6612 are simply narrower (.561/.562) versions of the wider gears.

Material: SAE 1112 stl. cold drawn Brinell hardness 175-205. Optionally, SAE1112 stl hot rolled machine straightened Brinell hardness 140-170

Inner bore: .406/.407

Pitch diameter: .833

O.D. .997/.998

Gear width: .724/.725 ends to be square with bore within .001 T.I.R.

Tooth data

Pitch: 12

No. of teeth: 9

Addendum: .0833

Depth below pitch line: .1042

Whole depth of tooth: .1875

Pressure angle: 20 degrees

Must show .003-.006 backlash when meshed with 8N-6610 on .833 centers

Outer tooth tip corner radii .01/.03 R

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Tim PloughNman Daley

11-17-2017 04:02:17




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-16-2017 04:54:32  
HHHMM.. Brinnell is usually reserved for cast iron specs. Steel usually spec'd in Rockwell, but I've seen both on older prints. I can take this info to the gear rep and see what they can do...thanks.

Tim Daley(MI)

PS- I didn't see the gear sold separately in Carpenters catalog but then didn't look anywhere else. Just curious, did you try and see what CNH has in stock? They may have a NOS package on their shelf with the correct gear. I will check with my local CNH dealer too. Will brace myself as to what they'll charge if they do.

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Tim PloughNman Daley

11-16-2017 02:47:15




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
Dan-
Just curious because the gear part numbers are 6610. MPC's show that p/n 52-6610 is the gear used in oil pumps from '39-'50. Then p/n 8N-6610 was released. These are the differences between the 9/16" gear and the 3/4" gear. Where did you find the original specs? Do you have the original drawing? I don't see just the gear being offered as part by the usual suppliers. Though now retired, I still am in contact with the machine tool business, have a buddy with a shop, and do processing/programming for him on the side. One of his customers is a big gear manufacturing supplier in Detroit here and he does a lot of gear blanks for them. It may be possible to get some made exact as original but need a drawing to go by.

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nicko-31

11-15-2017 10:42:41




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
Quoting Removed, click Modern View to see It's an unfortunate state that we are in when it comes to Costomer satisfaction. This perticular issue has cost me a great deal of time, money, and frustration. None of which I have a great deal of.



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TheOldHokie

11-15-2017 09:35:07




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
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I spoke with a RAP returns representative this AM. She was not interested in anything other than setting up the refund which she did quite pleasantly and efficiently. So I wrote a NICE letter to go back with the parts explaining in great detail the exact problem and what it was doing to their reputation. I suggested they do something//anything to rectify the problem and when the do to let folks know that they took proactive action. If I get any indication they follow up on that suggestion I'll let folks know. For now I would advise you don't hold your breath waiting for action and stay away from their APN6600A/B oil pump repair kits ;-)

TOH

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nicko-31

11-15-2017 02:23:44




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
X2 :D



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mike stegall

11-15-2017 00:58:49




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
thank you for the awesome effort you have put into making sure our oil pumps are as perfect as they can be...what you do is what made us a great manufacturing country years ago...sadly your one of the few left who knows the true meaning of the word quality



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TheOldHokie

11-14-2017 17:34:36




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
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Same here - I have had good success with other things purchased from them. I will call tomorrow and talk to someone about the problem. Hopefully they will TAA and find a source of usable kits. If not they will move to the bottom of my supplier list.

TOH



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Shaun Wallace

11-14-2017 17:29:59




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
Our host sells Atlantic Parts. I have gotten some that I have had problems with. Namely R/A shaft seals for 65 up 4,5000. They seep around end of axle hsg. The last Ford ones used had thick cork gskt inside instead of couple rubber strips.



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Royse

11-14-2017 17:11:46




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
That's a shame. I've bought a lot of parts from those guys because

they are local to me. They have always stood behind what they

sell for me. Unfortunately, they, like other sellers, only sell them.

They don't make them.

Atlantic, A&I, Tisco, I've had trouble with all three on various things.

The local Agco dealer sells A&I, which I understand is owned
by John Deere. They rue selling them, but they feel they have
to sell some aftermarket brand or loose the sales.

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tractorguy2

11-14-2017 15:20:12




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 Re: Avoid these oil pump kits in reply to TheOldHokie, 11-14-2017 14:43:55  
I bought a lawn mower cable from those guys. It lasted two weeks.



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