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John Deere Tractors Discussion Forum
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JD1010 Distributor/Oil Pump Timing

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arice

03-13-2006 06:24:32




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OK, I'm confused. On some forums, some guys are saying when all is said and done the slop on the oil pump should be parallel to the crankshaft. Others have said 45 degrees up to the left (small lug facing outward and toward #4). The JD21 IT Shop manual says 45 degrees up to the right (large lug inward and facing toward #4). The John Deere shop manual only talks about the "Tool".

So, which is it?

Thanks,

Al

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jdemaris

03-13-2006 11:06:17




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 Re: JD1010 Distributor/Oil Pump Timing in reply to arice, 03-13-2006 06:24:32  
If you're in doubt, just look at your distributor. Get the engine with number #1 cylinder on TDC of the compression stroke, and the DC mark lined up in the timing window. Then have the distributor in "fire" position for #1 cylinder, and eyeball the drive-tang at the bottom of it. Where ever it is, that's where the corresponding tang needs to be in the oil-pump drive. It's no big deal, and no special tool needed. Just remember that, due to the helical gears on the pump drives, it rotates a bit when pushing it into place. With a diesel, same procedure except you need to ascertain which discharge port is #1 - the location was changed once during production.

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arice

03-14-2006 12:58:25




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 Re: JD1010 Distributor/Oil Pump Timing in reply to jdemaris, 03-13-2006 11:06:17  
Well, that ofcourse would be the way to do it, however, I removed that big saucer like thing which was in the way of the connecting rod bolt I was trying to get out before I realized it was the drive for the distributor.

So, I have the distributor out, I have the oil pump out, I have the pistons out. When I put them all back together how do I get the oil pump and distributor timed correctly WITHOUT having to buy that tool?

Thanks.

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jdemaris

03-14-2006 13:58:10




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 Re: JD1010 Distributor/Oil Pump Timing in reply to arice, 03-14-2006 12:58:25  
I don't know what part of what I previously described, you don't understand. The JD tool is not necessary - unless you need to know the oil pump is in correctly and you don't have a disributor on hand to use as a reference. But, I assume you do. You know which wire in the distributor cap goes to #1 cylinder? When the distributor is in position to fire on number one, and the rotor is pointing to number one terminal in the cap, eyeball the position of the drive-tang at the bottom of the distributor. The corresponding position of the tang on the oil-pump gear must match. It's easy to see. Seems, looking down the hole it will be around 2:00 position - but my memory may be a little off. If you don't understand this, please elucidate as to exactly what aspect of this is unclear.

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arice

03-13-2006 06:25:20




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 Re: JD1010 Distributor/Oil Pump Timing in reply to arice, 03-13-2006 06:24:32  
Shoot, I meant to say "slot", not "slop".



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