Lawn Mower Repair : How to Replace the Drive Belt on a Rear-Drive Lawn Mower

When replacing the drive belt on a rear-drive lawn mower, make sure the spark plug is disconnected, remove the blade, take off any bolts for the belt cover and remove the belt. Find out how to put a drive belt on the engine pulley with help from the owner of a small engine repair shop in this free video on lawn mower repair.

Expert: Mark Bauer
Bio: Mark Bauer is the owner of Bauer Small Engine Repair.
Filmmaker: Ross Safronoff

[orange]

Finally someone showed my mower. Thank you, there are so many different Toro rear drive push mowers.

[vogun]

Top Video - Thanks. I took the main driver blade off and the Spacer Driver came "out of nowhere" on to the floor, and I hadn't a clue where to put it back. Now I do thanks to you - turn it sideways and drop it in! Never would have tried that one.

[joanchamberlain]

i just joined your fan club. thanks so much, mower fixed so back out to the garden.

[frangeron]

So Simple, Thanks. Things always look more complicated than they are.

[richardsth]

Just did mine on a Mountfield SP536. There was so much crud underneath that I didn't see that the belt cover actually came off the base. I was trying to attack it by removing the engine, but thank god for this video. Even though it wasn't the same as mine, most rear-drive mowers follow a similar procedure. Great Stuff 5*

[CKCrippledKnight]

Thanks, fixed mine thanks to you. Have a good day.

You helped someone in 03.29.2020

[markphillips]

Right. Looks easy. My particular model number 241

[mikelacey]

Nice, but no mention of tensioning the belt on the adjuster to stop belt slap

[ricardopelc-wesoly]

The belt seems rather loose, isn't there a spring on the transmission body that torques it a bit.

[condor]

Not sure what kind of mower that is but my snapper has a belt it’s quite tight yours has so much playing it there’s no issue with replacing it the question is on the ones that are tight you really have to remove the rear drive pulley from the deck or take some of the engine bolts off to relieve pressure from the engine side. There’s no way my belt was going to come off like yours. I can’t believe that plastic piece apparently keeps your belt in tension. Unless there’s some other tensioner that you’ve released that you don’t show that’s a interesting design you have

[CarstenDittrich]

Thanks for the instruction. What about the spring in the back - anything to be observant on for that?

[emsleywyatt]

I'm wondering if I can loop the belt around the blade and get this done without taking the blade off.

[alriutort]

Excellent video.  Only hard part was to remove the  bracket cover over the pulley. Ace doesn't  have the drive belt so I will need to orde

[Blaydrnnnr]

Thats my exact mower, but instead of the drive belt, I need to replace the drive cable. Thought I could just get to it from the underside to detach the cable from the drive box, but thats not the case. Guess I have to tear the whole drive belt cover off like this vid. Wish you had showed all the screws you need to remove to get the belt cover off. On mine, I think theres two on the outside near each back wheel, and two on the cover itself under the deck, but not sure of what other screws, bolts or other parts were needed to actually remove the cover, other then the blade. Mine still has the OEM round cover over the bottom hole of the engine, directly above the blade. This vid seems to show the mower without this. Thanks for the vid, gave me a much better view of what I think I need to do to get that damn cable off.

[williammoore]

What type of oil do you used for the selfpropelled snapper

[vivasimion]

On my brand new Makita belt goes out after 10 liter work..Was put again in service and after another 1o liter work jump again..any advice?

[DOWNUNDER.]

love the gloves, wouldn't want to chip a nail :)

[kelleyhargis]

I know this is old, but have you repaired or replaced the the rear drive transmissions on these mowers? Looks like this is the version with the B&S engine, there is almost the same mower with a Honda GCV160 engine for 2007, which I have.

[blackfoot]

the carburetor must be pointing upwards when tilting the grass machine otherwise the oil can come into the cab

[baigy]

Good video, hope you emptied the fuel tank before other wise you can damage the engine. Best tipping it backwards.