The Swisher gets a new engine.

Installing a new 17.5hp, 500cc Briggs and Stratton on my Swisher 60" pull behind finish mower.

[@robertengelhardt3321]

Put the same motor in after blowing mine too, loved the first part about the pulley, mine fell off in my hands basically with the pulley tool. My mechanic brother in law said I was lucky as heck, guess he was right. Great video. Had to get help on the wiring though, good job figuring it out on your own....

[@ahuggins6]

I was raised by a very mechanically minded dad. He missed his calling to be a design engineer. So did I by being a home body that failed my first year of college and having to come home to a junior college and go back to a school with a full engineering program.

[@AugustusLarch]

The bigger pulley is going to give you less blade RPM and more torque. A gear reduction. It will have more whack power.

[@ahuggins6]

Mows just fine for me.

[@fishconsinlange8901]

Love that low boy!

[@ahuggins6]

Thanks. Did you see my video of the distributor rotor on it?

[@fishconsinlange8901]

@@ahuggins6 not yet! Looking now

[@larry-z9m]

Seems to me that the drive pulley has to be the same size as the other drive pulleys for each blade. If it takes 5 ms for 6” of the drive belt to go through 90 degrees of one pulley, it should do the same for all driving pulleys or you’ll have drag in the system. Am I wrong? That is, all the blade drive pulleys and the engine pulleys need the same angular velocity….

[@ahuggins6]

My thought process: try the pulley. If it doesn’t cut well, we’ll fix it. It’s been cutting just fine since I swapped this engine how many years ago?

[@defan2105]

My neighbors put a new engine in their Ranch King riding lawnmower. It is an Intek 500cc 17.5 model # 31R977-0027-G1 engine but they don't have the manual for it (lost it) 1) is that the same one as you are showing and 2) if Yes, would you know the basic parts numbers for it like Air filter, Oil filter, Fuel filter, and what type of oil it should take and how much? Briggs & Stratton does not have a phone number listed online for support and I emailed them last week and never got a reply. Great video! I'm happy it worked for you...any follow-up 2-years later??

[@ahuggins6]

Well, for an update, my mowers sit outside year round. So I’ve got water in the gas and the motor doesn’t run gretlat right now. But it’s good to have a dependable mower! I don’t have any thing on it. I would search for an owners manual for that model number.

[@defan2105]

@@ahuggins6 I tried to find an online owner's manual but B&S doesn't support their own engine. I have written them, tried to call them, and even the online search points to that model but then says an error has occurred and they just say, "too bad". Not the company they once were. I appreciate your reply.

[@ahuggins6]

This one should get you there. The short block is probably the exact same from one number to the next. The second and third codes are probably things like carb jet sizes or mufflers or combinations of those. www.thepowerportal.com/ipls/ipl.htm?md=31R9770028G1~_IPLURL_LO.pdf

[@roberth7340]

I am about to get the same engine but going to get the recoil start instead of dealing with all the electrical wiring and what not.

[@ahuggins6]

Cool. I’m too lazy. I’ve since run 2-0 cables from the battery on my cub to crank it with. Works like a charm.

[@pdrsar5090]

What Diameter was the motor pulley? Did it work out ok?

[@ahuggins6]

Have no idea what size it is. Works great! In fact, the deck rotted out from under it. I’m going to be replace that deck with an International 3160 deck this winter.

[@jaimehernandez9152]

You got a part number on the new engine you got? Or where did you get it from?

[@ahuggins6]

Model number 31R907. Ordered from Lowe’s.com. That is not their stock/sku/item number. But I think if you search Lowe’s.com it should you there.

[@skaggst]

hope you get this ....did the engine motor mount holes line up???? replacing a 280h07 engine that blew up today....if they line up will get a new one like this

[@ahuggins6]

I had absolutely no trouble bolting it up. It was the same block, just a different muffler as far as I could tell. Good luck with it!

[@skaggst]

@@ahuggins6 hey thanks so much for the video and quick reply....bought my t60 in 2005 and engine blew today ......17 years of cutting and i worked the devil out of it......hope i can find one of the engines you replaced on yours

[@ahuggins6]

31r907 at lowes shows 791.97 right now. WOW! I think it was under 600 when I got mine.

[@skaggst]

@@ahuggins6 yep and they are out of stock LOL ....do you recall what model briggs you replaced if not no worries.

[@robertengelhardt3321]

I have an older green version that had a 12.5 and the 17.5 bolted right in to, needed a little rewiring that I paid my brother in law to set up as he is actually a mechanic. But did all the tear down and motor reinstall my self, actually pretty fun.