Hartzell Prop O-ring / Seal Question

[Geico266]

I pulled the constant speed prop off my IO-540 to replace the alternator drive belt for the new Plane Power alternator I am installing. There is an o-ring inside the prop that seals the end of the crankshaft. Is that a plain o-ring or is that a specialized Hartzell seal of some kind? It sure would be nice to replace it now.

Thanks in advance for help or thoughts.

 

[Checkout_my_Six]

It's been a few years....but I think that's a static seal....and it's a plain old seal made from Buna-N or Viton will work.

 

[Geico266]

It's been a few years....but I think that's a static seal....and it's a plain old seal made from Buna-N or Viton will work.

Definately a static seal. It sure looks like a standard o-ring, but I thought i should ask.

 

[Norman]

MS 28775- something. Can't remember the dash number at this hour.

 

[KRyan]

Hartzell P/N for this o-ring is C-3317-228.

The installation manual is here, o-rings and torques are listed in the manual.

http://hartzellprop.com/wp-content/uploads/115N-0000-R20-AW.pdf

 

[Norman]

Hartzell P/N for this o-ring is C-3317-228.

The installation manual is here, o-rings and torques are listed in the manual.

http://hartzellprop.com/wp-content/uploads/115N-0000-R20-AW.pdf

Yeah! Like Beech, Hartzell puts it's own part number on a generic part and jacks the price out of sight.

MS 28775-228.

 

[KRyan]

$2.50 list price

 

[Tom-D]

For those who like to order on line.
http://www.oringswest.com/?_vsrefdom=ppc1&gclid=CIiZkuWHjMICFQiVfgodrLsAmA

or find a part number.