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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

Oil pump bearing stud

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KirkWest14

10-11-2017 10:55:44




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Good day gentlemen,
When I was getting ready to plastigauge my main bearings the front cap studs came out of the block with the castle nut still attached. No big deal, checked bearing clearances but when I tried to back them out the big one stripped. Research on the previous threads shows they are no longer available. I can get grade 8 bolts and I assume I need lock washers too since there is no hole for the keeper wires? Has anybody else dealt with this before? What was your solution?

Thanks in advance

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Jock(OR)

10-12-2017 09:57:03




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 Re: Oil pump bearing stud in reply to KirkWest14, 10-11-2017 10:55:44  
I have found that Caterpillar bolts are very strong and also machine like butter! I scrounge them from mechanics and truck shops, but the black oxide coated ones are cheap enough from Cat to buy new when I don't have one in stock that will work.

I make studs, special bolts, pins, and shafts from them all the time.

For a stud like this application, I would use a NF bolt and cut the coarse threads a little large on the lathe. I have a fixture for drilling the cross-hole that is sold by aircraft supply houses.

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TheOldHokie

10-12-2017 06:36:24




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 Re: Oil pump bearing stud in reply to KirkWest14, 10-11-2017 10:55:44  
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Send me your address and I'll put it in the mail:

oldhokie@windyridgefarm.us

Corrosion and/or a ham handed PO would be my guess on the stripped thread problem.

TOH



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TheOldHokie

10-11-2017 17:34:16




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 Re: Oil pump bearing stud in reply to KirkWest14, 10-11-2017 10:55:44  
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Not sure if that's a compliment or a diss ;-)

I was just in the shop and I have your stud in a roached block. Stud is good and yours if you want it.

TOH



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KirkWest14

10-12-2017 06:05:53




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 Re: Oil pump bearing stud in reply to TheOldHokie, 10-11-2017 17:34:16  
That would be great. Not that I'm a purest and want to keep it all original, I'm just cheap and this way I'll only have to replace the one. How do I get a hold of you? Just curious, what would have caused the wear on the stripped stud? Cant imagine it was loos at some point.

Thanks



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TheOldHokie

10-11-2017 12:53:43




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 Re: Oil pump bearing stud in reply to KirkWest14, 10-11-2017 10:55:44  
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I didn't look too hard but no - the longest I found was 3". So go with cap screws and the thread locker. I would not use spring washers. Might want to consider these and do them all while you are at it. Very modern and sure to drive the next old tractor guy crazy ;-)

TOH

12 point alloy steel cap screws

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KirkWest14

10-11-2017 17:32:02




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 Re: Oil pump bearing stud in reply to TheOldHokie, 10-11-2017 12:53:43  
Thanks HoBo



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KirkWest14

10-11-2017 17:33:44




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 Re: Oil pump bearing stud in reply to KirkWest14, 10-11-2017 17:32:02  
Thanks Hokie. Hate the spell checker.



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TheOldHokie

10-11-2017 11:26:34




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 Re: Oil pump bearing stud in reply to KirkWest14, 10-11-2017 10:55:44  
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A new stud and drill it or use Loctite 271 (red) thread locker.
TOH



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KirkWest14

10-11-2017 12:36:32




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 Re: Oil pump bearing stud in reply to TheOldHokie, 10-11-2017 11:26:34  
I haven't been able to find one that's 3 3/4" long. Got a source?



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