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Author Topic: NLA Poulan Parts 2700-3600 3450-3750 PP330-380 Crank Seals etc  (Read 5451 times)

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Offline 3000 FPS

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #20 on: December 08, 2014, 12:25:12 am »
About all you can do is order one and see if it will seat deep enough for the oil pump and worm gear to clear.   It does look close. 
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Offline 3000 FPS

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #21 on: December 08, 2014, 12:33:16 am »
Ok I bought one and when I get it I will install it on the PTO side on a 3500 I have here.   Then we will see if it clears the oil pump.   I ordered the SKF 5756.
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Offline Eccentric

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #22 on: December 08, 2014, 01:00:54 am »
Thanks for doing that for us Roger.
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Offline Cut4fun .

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #23 on: December 08, 2014, 08:42:39 am »
Nice work.   

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Offline Cut4fun .

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #24 on: December 12, 2014, 04:47:21 pm »
Quote from: Cut4fun_ on December 07, 2014, 02:51:11 pm
Thanks Roger. Mine are still in the mail I hope.

Received yesterday 4 seals.  Just been to busy to get on right now.  work work training work.
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Offline 3000 FPS

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #25 on: December 13, 2014, 06:17:18 pm »
I got the new seal in and pulled the old one out of the 3500.
There is not going to work because I measured the shaft size wrong. 
There was another step in the shaft I did not see until I got the worm gear off.
I believe I could have made this seal work if it was not for the shaft size being wrong.

The size should be as follows.
Diameter 1.380
Width.      .190 but I measured the case and a seal as wide as .220 would work.
Shaft.       .590

The seal I pulled out of the 3500 also had a number on it.
NOK  UDO 421E
MADE IN SINGAPORE.
Sorry if you come up with another that might work let me know and I will give it a go.
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Offline Cut4fun .

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #26 on: December 13, 2014, 06:34:22 pm »
Quote from: 3000 FPS on December 13, 2014, 06:17:18 pm

The seal I pulled out of the 3500 also had a number on it.
NOK  UDO 421E
MADE IN SINGAPORE.


The new ones I got in have no markings or lettering numbers etc.
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Offline farmboy

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #27 on: December 13, 2014, 07:07:31 pm »
The two I have don't have any marking either.
Shep
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Offline Eccentric

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #28 on: December 14, 2014, 12:24:19 am »
Quote from: 3000 FPS on December 13, 2014, 06:17:18 pm
I got the new seal in and pulled the old one out of the 3500.
There is not going to work because I measured the shaft size wrong. 
There was another step in the shaft I did not see until I got the worm gear off.
I believe I could have made this seal work if it was not for the shaft size being wrong.

The size should be as follows.
Diameter 1.380
Width.      .190 but I measured the case and a seal as wide as .220 would work.
Shaft.       .590

The seal I pulled out of the 3500 also had a number on it.
NOK  UDO 421E
MADE IN SINGAPORE.
Sorry if you come up with another that might work let me know and I will give it a go.

Searched the Timken catalog again.  Found a seal that matches the bore and shaft diameters, but it's too wide at .276"

Did some maths and figured out that the new correct shaft diameter is right about 15mm.  Off to the metric charts to find a match.  Need to find one with a 35mm OD, 15mm shaft diameter, and 4.8mm width.  BRB...
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Offline Eccentric

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Re: 2700-3600/3450-3750/PP330-380/etc Crank Seals. Other NLA Poulan Parts
« Reply #29 on: December 14, 2014, 12:31:22 am »
Nothing yet.  Found a metric that matches the shaft and bore diameters..............but it's probably too wide at 7mm.  If my maths be right, the max with (.220") is around 5.588mm.  Will search more later.  The baby sez it's time for me to be done on the computer for a spell....
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