Old Briggs 3 HP water pump- Question on crankshaft

[creia]

Can someone tell me what the PTO shaft is like on an old Briggs water pump from the early 1970s? That is to say, is it tapered (like a generator), stepped, or straight and keyed (which is what I want), and what would be the length? We have a need for just the engine and i have the opportunity to purchase one on a water pump locally. Thank you in advance.
Michael

[KE4AVB]

We the engine numbers to even try to look up the crankshaft specs.

[bgsengine]

Can someone tell me what the PTO shaft is like on an old Briggs water pump from the early 1970s? That is to say, is it tapered (like a generator), stepped, or straight and keyed (which is what I want), and what would be the length? We have a need for just the engine and i have the opportunity to purchase one on a water pump locally. Thank you in advance.
Michael

Water pumps commonly had threaded shafts (usually left hand) which the impeller threaded onto directly,really depends on the pump, but with engine model and type number, you can look up the original crankshaft part number and then find the crankshaft drawings for it to find out.

[RoyM]

Likely 5/8" threaded.

[creia]

Thank you all for the replies. I have requested the engine numbers from the seller. For our needs we want a straight crank that has a keyway cut into it. While it is not necessarily a deal breaker with a threaded or tapered crank end (we could swap it out) it will effect what we will pay for the engine/pump.
Michael

[creia]

UPDATE:
Here are the engine numbers"
Model = 80232
Type = 0508-02
Code = 73012903

From what I know about deciphering these numbers this is a 3HP horizontal-shaft engine, with a "Pulsa-Jet" carb, flange-mounted ball bearing crank, with a rewind starter, built in 1973. Is there anything in the numbers that can tell me about the crank end? (I.e., straight, tapered, threaded) and diameter (5/8" or 3/4"). Thank you for any help!
Michael

[KE4AVB]

Briggs has the replacement engine having>

PTO Shaft Diameter 0.625 (5/8)
PTO Shaft Length 2.422
PTO Threads 0.625-18 UNF

if this helps.

[creia]

Briggs has the replacement engine having>

PTO Shaft Diameter 0.625 (5/8)
PTO Shaft Length 2.422
PTO Threads 0.625-18 UNF

if this helps.

Thank you KE4AVB,
Since posting the engine numbers I went to PartsTree.com, plugged in the engine numbers and found the parts diagram for this engine which includes the actual OEM Briggs parts numbers. I then took the part numbers for the crankshaft(492095 and 260182) and searched them on Ebay. All of the cranks that came up with those numbers showed a straight crankshaft with a THREADED end. All of you gents were exactly correct- AGAIN! (No surprise) I still may purchase the engine/water pump if I can get it cheap enough, and I will swap out the crank for a good used one with a slotted keyway.
Michael