JD LT166 oil leak from drive shaft

[70 plus]

My 16 hp V-Twin in the JD LT166 is leaking oil down the drive shaft. The engine model is 303777 Type 1147-E1. I've pulled the motor and notice what looks like a plastic seal. How difficult is it to replace the seal? Is there anything else I should consider?

 

[tomplum]

805049S Just note how far it is driven in before you hook the old one out. Or partially thread in a sheet metal screw and tug the seal out. A little lube on the lip and carefully sneak it up over the boss on the crank. Then you can tap it in evenly. Sometimes a piece of PVC pipe will work as a driver.

 

[70 plus]

Thanks good advice.

 

[70 plus]

805049S Just note how far it is driven in before you hook the old one out. Or partially thread in a sheet metal screw and tug the seal out. A little lube on the lip and carefully sneak it up over the boss on the crank. Then you can tap it in evenly. Sometimes a piece of PVC pipe will work as a driver.

I am having difficulty finding the part numbers I need or a diagram that shows the seal for the drive shaft. Any suggestions?

 

[oldnslo]

With engine pulled I would also check to see if the oil pump on that model has a cover. Some of the older Briggs motor had a cover held on with three screws and sealed with an O-ring this O-ring gets hard from repeatedly being heated & cooled and can also leak.

Briggs has a good parts look up just type in the model code & type number.

 

[tomplum]

Assuming the seal in question is the lower sump seal @ the crankshaft, the part number was 805049S.

 

[oldnslo]

attachment should be the illustrated parts list for your engine. Item 20 is the shaft seal seal on the PTO side.

 

[70 plus]

First let me apologize for this taking so long, life sometimes gets in the way.

Thanks to all of you for the input. I was able to secure the right part and have installed it. No leaks now.

The suggestion about using a piece of PVC pipe, the part number and diagram wer ella helpful.

Thanks again

 

[tomplum]

:thumbsup: