Billy, good question, i,ve seen more without the washer, i,ve also seen the shaft glued into dist end.

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

Is the washer totally necessary? How many times will you be pulling the distributor? as long as the distributor ends are clean and lubed it shouldn't stick in there.

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?

Hello John! Still doesn't explain WHY they ignore the problem today.They have been told and still don't change it.charliemccraney  mentions he knew the washer was on the wrong end but didn't know until know that they are also too small.Lucky the shaft didn't pull out of the oil pump.I didn't think I would get this much response and views when I posted this topic.I was looking for someone to say they had the same problem and here's what they  did to fix it. 

  

I guess I'm to blame to some extent. When I sent ARP a drawing of the shaft dimensions years ago I neglected to put the washer on the drawing. When they sent the first batch with the waher in the wrong location I let them know. They removed all their stock from the packaging and discovered they didn't have enough washer to re-assemble them. By the time they got them back in stock they forgot why they took them apart and put the new washers back in the wrong position, plus we couldn't get any while they were waiting.

Yes the washer is at the wrong end and it is too small to be effective.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

I didn't realize the washer with the ARP drive is too small. I remember, when I discovered the same problem, that that washer would not go through the hole at the upper end of the block. So it seems like it would be adequate unless that hole is a larger diameter down toward the oil pump. I didn't think to check it at the bottom. In any case, I've had the distributor in and out quite a few times without the drive pulling out.


Lawrenceville, GA

Thanks anyway, but I just bought one of those $6.99 oil pump shafts with the retainer off Ebay. Then I'll just switc

  Ron Lane,  Meridian, ID

I can send you an old worn out shaft if you need one but I had to use the retainer on MY new ARP shaft!(LOL)

  

Just my luck! I bought one of the new ARP HD oil pump drive shafts for my new motor project and pitched the old, worn shaft and retainer out. I hate it when this stuff happens.

Rono

  Ron Lane,  Meridian, ID

 

Just did the same thing to the FED engine and the Brick engine, you would think ARP would get a clue.  Oh well, it's not that hard to fix, I just feel for the guy who gets one and doesn't have this forum to correct the problem for him.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

In defense of the ARP or other aftermarket heavy duty shafts, they are heavier and as such, can dampen some of the oil pump harmonics that can be transferred to the distributor.  But for those of us using the gerotor oil pumps or just have daily drivers, the stock oil pump drives are more than adequate.

Lorena, Texas (South of Waco)