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Briggs and Strattoon top pully removal out of a Swisher Big Mow

#1

L

lavatan

Hello Everyone,

I'm rebuilding my mower engine and I'm trying to get the top pulley off the motor. I haven't been able to find another motor that looks like this and the clutch removal socket that I bought does not fit. In the Big Mow mowers there is a pulley that sits on top of the flywheel and it surrounds the clutch. Does anyone know what clutch removal tool I'd need and/or a way to remove the pulley?


#2

L

lavatan

This is the kind of mower I'm talking about. On top of the motor is a drive pulley that drives the front wheel when you push down on the pedal you can see on the right side.

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#3

Fish

Fish

Can you put up a pic of your engine and the pulley?


#4

L

lavatan

I will post that tonight when I get home from work.


#5

B

bertsmobile1

Usually when taking drive off the flywheel end they use the holed for the puller to hold an adapter shaft which fits over the top of the crankshaft end.
A model number off the engine & the mower will help greatly otherwise you are limiting the pool of potential helpers to those who have a similar model Swisher which is a small number of people to start with , then the off chance they are actually on this forum.


#6

L

lavatan

The model is 195707-0430-E1. The code next to that is 981015YD if that helps. I've looked up the exploded view of the motor and I haven't seen any where an image of that pulley. Probably something that Swisher had done specially for that engine. Here is a picture of the top of the motor. I've tried a pulley puller but it just ended up bending the pulley itself. I'm guessing that I have to use a clutch removal tool but the one I have isn't keyed correctly nor will it fit in between the pulley and the clutch.

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#7

Richard320

Richard320

This looks really familiar. Reminds me of an ancient lawnmower I took apart when i was about 14. It didn't go back together, but that's another story...

Anyway, I have an old book so I looked a little. Looks to me like that housing with the four bolts screwed into it is the flywheel nut. I'd either remove one of those small bolts, install a longer one, slip a lever in and give the lever a smack with a hammer to loosen the nut, or try to disassemble the ratchet part and see if I could fit something inside that nut to turn it.

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#8

Scrubcadet10

Scrubcadet10

looks to me like you'll need to remove that starter clutch also.



#10

Fish

Fish

Yeah, that one looks a lot thinner than mine. Likely what holds in into place is the clutch. I wonder if a new pulley is easily found.


#11

A

andykuo


something like this check size before you buy.


#12

tagpop

tagpop

The clutch is also the flywheel retaining nut. They make a special wrench for removing it. But a hammer and dull (blount) metal punch (chiesel) will do. Put the punch on the 1/4 inch nut and hit it (horizontally) with the hammer and it will come loose. Hit firmly but not to hard or to many times it is made of aluminum and breakable. You can also use channel lock pliers or pipe wrench depends on the depth of your toolbox.


#13

tagpop

tagpop

The clutch is a retainer nut. Use you Channel Lock pliers to unscrew the clutch unit. Or a pipe wrench.Hold the flywheel and loosen the clutch "its just a big nut".


#14

tagpop

tagpop

If your clutch gets damaged, I have many used clutches like yours.


#15

DeadmanRoss

DeadmanRoss

The model is 195707-0430-E1. The code next to that is 981015YD if that helps. I've looked up the exploded view of the motor and I haven't seen any where an image of that pulley. Probably something that Swisher had done specially for that engine. Here is a picture of the top of the motor. I've tried a pulley puller but it just ended up bending the pulley itself. I'm guessing that I have to use a clutch removal tool but the one I have isn't keyed correctly nor will it fit in between the pulley and the clutch.
Part number 19165 puller-flywheel only one it shows for the model number


#16

R

rg69charger

Is that the model number off of the engine all the number off of the mower. Lot of times the mower model is under the seat on a tag but post the lawn mower model also and name


#17

R

rg69charger

Is that the model number off of the engine all the number off of the mower. Lot of times the mower model is under the seat on a tag but post the lawn mower model also and name
I see that's the model of the engine host the model of the mower


#18

R

rg69charger

I see that's the model of the engine host the model of the mower
Should have said post the model of the mower and name of course serial number


#19

R

rg69charger

Screenshot_20210306-131210_Chrome.jpgScreenshot_20210306-131210_Chrome.jpg


#20

M

muddy51

Hello Lavatan,
In picture ...13, the square shaft on the top is a clutch for the recoil starter. Give it a spin by hand and it should turn freely in one directon and catch the crankshaft and turn the engine
in the other direction. The bottom have of this starter clutch screws onto the crankshaft. Remove the 4 small screws on the bottom half and the top half will pull off revealing 5 loose balls.
remove the balls. Then take a medium to large flathead screwdriver and put the end on the screwdriver against on of the tit's on the edge of the bottom half of the clutch and hit it with a
hammer to loosen it (counter-wise). After breaking it loose unscrew and remove the bottom half. The end of the crankshaft is tapered and there is a woodruff(half-moon) key that the flywheel
fits down on. Using 2 large screwdrivers or small pry bars pry up on the bottom of the flywheel and it will come off the crankshaft. Be careful about where these prybars touch the flywheel and
engine block because it is easy to damage either of them. It is also possible to do damage to the bottom of the starter clutch when using the hammer/screwdriver so be careful there as well.
Once you do this you will know the "trick" and it will be simple from then on. This assemble is common to most briggs and many other brands of small engines with recoil starters. Your particular
engine could also be equipped with an electrical starter motor. That starter clutch tool from Amazon looks very useful as well but I've never owned one. It's actually quicker to do than to read
all this.


#21

Fish

Fish

Here is the bottom of the clutch, as said, it acts as the flywheel nut as well. The problem looks to be, getting a hold of it to remove it.
bottom.gif


#22

Fish

Fish

This is the tool commonly used to remove the clutch, but in your case, it looks took thick to get in there.

thick.jpeg


#23

RustyAllen

RustyAllen

lavatan Have you figured it out yet?

The object which is in the way of the whole flywheel coming off, is threaded and is the nut which has to be turned to unscrew. It might be a left-hand thread, I don't know.


#24

G

glensto68

That is the starter clutch. You tap the ears on the bottom of it to the left. It threads on the shaft


#25

G

glensto68

There are some ball bearings in it what ever you do don't grease them during reassembling the engine


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