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Problem with ARP HD oil pump drive shaft

Posted By oldcarmark 15 Years Ago
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oldcarmark
Posted 15 Years Ago
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As far as ARP misrepresenting the quality of the product-I agree that you are not dealing with a third world company and its disappointing that the product is not up to expectations.The precision ones sound like the ones to buy for sure.

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MoonShadow
Posted 15 Years Ago
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I've also used the precision shafts. Fit right and work great. It's unfortunate that a company like ARP would continously missrepresent a product they know to be wrong! Their reputation is way better than that. Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire
marvh
Posted 15 Years Ago
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I use this shaft from Precision. I don't know if they are better than the ARP however I have over 35K on one engine using this shaft with no problems. It is machined longer on the lower hex for the retainer clip.

http://cgi.ebay.com/ebaymotors/FORD-272-292-312-BILLET-OIL-PUMP-DRIVE_W0QQcmdZViewItemQQhashZitem51912b00d4QQitemZ350327865556QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

marv
DANIEL TINDER
Posted 15 Years Ago
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Hoosier Hurricane (3/14/2010)
What's wrong with the original shafts??




According to Ted: more harmonics/spark scatter with points distributors.

6 VOLTS/POS. GRD. NW INDIANA
oldcarmark
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Hello John.I am putting in a new oil pump as part of my rebuild.The old shaft has some wear on both ends and i was going to buy a new shaft anyway.I was this one as HD hardened and bought it. Wouldnt have bothered if I knew it wasn't as correct as I would have expected.Now anyone who reads this post will know what I know now.

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Hoosier Hurricane
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What's wrong with the original shafts??

John - "The Hoosier Hurricane"
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Bob's 55
Posted 15 Years Ago
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When I bought my ARP shaft years ago from JM he told me at the time that it was on the wrong end and wrong size. He said they did it that way "because that is how it is on the FE's".

I wrote to ARP about this ~5-6 years ago, as I'm sure John has. Sad that they are still selling them this way and won't listen to the "Experts" (I'm not including myself in that list).

BOB


joey
Posted 15 Years Ago
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oldcarmark, let me know if you want me to send you this shaft here. It is in perfect shape.
oldcarmark
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Thanks Ted! Joey measured and the washer should be 1 3/8 from the end of shaft(bottom).The ARP shaft will only allow washer to be 1 inch from end because the shaft gets thicker at that point.I will install washer at 1 inch and go with that.Very disappointed in this product.$25.00 and its not made right and apparently as Ted says-THEY DON"T CARE!Maybe there is a better alternative for someone else to buy if they need a better shaft than stock-anyone know what it is?Thanks again for all the input!

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Ted
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 I’ll summarize what I know on the ARP oil drive shafts.  The washer being installed at the top of the shaft is on the incorrect end and the washer being used by ARP is too small in diameter to be effective.  This particular washer arrangement is fine for the SBF, BBF, and FE engines but not correct for the Y engines.  I’ve sent a snailmail note to ARP in the past but I’m sure I was dismissed as just someone not knowing what they were doing as I received no response back and the washers continue to be installed on the wrong end and still too small to be effective.

 

I simply remove the ARP washer and install a larger tight fitting washer at the bottom end of the shaft so that the pointed end of the drive still faces to the top.  Reusing the original larger washer from an original oil drive works just fine if the washer is removed without damaging it.

Lorena, Texas (South of Waco)




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