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hello all . i am new .

i brought a snapper ridding mower . model number wm280921b . 11482175 . part number 84660..like the one on forrest gump movie . it has a briggis n stratton 9 hp motor,, . that has seized . i need help an advice on how to go about to fix it . i am handy with mower motors. an have lots of tools . thanks

I hope you bought it with the expectation you may have to replace the engine. Only way you will know the extent of the damage is to take it apart. Before you do that though, check that the starter gear is not jammed into the flywheel ring gear AND even remove the flywheel to see if possibly a magnet may have come loose and jammed into the alternator assý.

Most likely the connecting rod is seized to the crankshaft in which case the connecting rod will be ruined and probably the crankshaft although you MIGHT be able to clean up the crankshaft.

IF you would like a service/overhaul manual, contact me at address below, put in proper format and remind me the engine model number and what you want.

Walt Conner
wconner5 at frontier dot com

thank you tinker ) yes i brought for only $10.00 dollars ))
Great tinker ,,thank u ! i needed a starting point .did not know about any of those things you:confused2: pointed out .. / Any tips on removing flywheel? do we have a how to video section here?

briggs and stranton 9.0 hp
model 28b702

type 1154-e1

code 000929zd

I don't know about video section here - I am not big on videos. I did offer to send you a Service Manual. You really should have an inexpensive B&S puller to pull the flywheel without damage OR make your own to utilize the drilled and threaded holes already in the flywheel.

Walt Conner

thank u tinker

please send to sweetalexsmiles@gmail.com thank you

going to try to work on it tonight . what online store do you go to for your tools and parts?

well... there is good news and then the plot thickens ...........

i took off the reel for the rope pully.. and yikesssssssss!!!!!!!!!!! full of old grass clipings..!!!!!!!! clean it all up good .. and vollaaa. one free spinging mower. lol lol..

and now for the plot.... no spark coming from the spark plug at all.. and yes its a brand nerw plug... any ideas what it might be????

ooooo noooo !!!!! no compression!!!!!!

The No 1 killer of engines is no-low oil
The No 2 killer is overheating due to build up of debris around motor.

You will most likely find one or both valves stuck in the guides.
That engine may be either points or electronic ignition
But to know we will need the engine numbers.

hi bert . wow ! australia..!! hows the rugby down under???

ok back to the fun.Its a 9hp snapper ridding lawn mower .

model 28b702v

type 1154-e1

code 000929zd

I will have to pull the head off no matter what. so ...where is the best place to order a new head gasket and a magnito for the no spark at the plug ?

hey---???? could the no spark be because of valves being stuck open??????

ice said:

hey---???? could the no spark be because of valves being stuck open??????

Click to expand...

No it can not.

Yeah we have grass down here too
Otherwise the panseys masquerading as Wallaby's cry when they get tackled on gravel. :laughing:
Where are the real men now days.
And come to think of it a Yankee asking about Rugby :confused2:
Next thing is you try & tell me you played cricket at school.
It is a real UN on here.
That engine is from 2000 so I would imaging it is a latter replacement.
Most of the small RER's had pull starts or pull + electric starts and ery small batteries.
Best place is your local B & S dealer as you will most likely need a hand or some local help.
Pull the head then you can spin the engine easily and check for spark.
On the coil will be a thich wire HT lead going to the plug and an thin lead which is an earth cut out.
So before you quadruple the value of the mower, check with that wire not connected.
It should go to a terminal at the back on the plate that the throttle wire connects to.

Always look first, then ask and buy last.

AS for how to videos you can subscribe to
taryl fixes all
or
Donyboy73
Both excellent informative & accurate each with a slightly different approach.
I use a 2 leg CRABB puller and impact gun to remove just about all flywheels

hey burt
problem is the breakdowns at the ruck. too polite .they let every countrys halfback get passing on the front foot . i would like to see curtly beal try the 10 jumper on.=
no cricket.. too long of a game for me .lol

now back to work motor spins freely now .an still no spark . i can hold the tip of the black wire to the spark plug with no boot on it an not get shock. so i need a new coil for sure $55.00 dollars plus tax . i am going to pull the valve cover off today .

on the parts situation .the shop says it will take one week form the time of ordering for all parts to come. she does not carry 9hp stuff.

ooohh noooo! pulled the head an the valves work but the piston does NOT go up or down when spining .

how do i get to the crank case?? im looking and i dont see it>>>help

Pull the engine out of the mower, flip it over and you will see the crankcase / sump bolts
A broken rod on these engine usually is the death knell.
Ros are not dear and ou can get them in an under size or two but the cost of maching the crank or reboring quickly outstrips the price of a replacemnt.
One of the surplus engine merchants was doing 11Hp B &S for around $ 300 a while back.
Think they had some new pulls a bit cheaper.
smallenginewarehouse.com/Items/Engines/#!Category1=Categories&Category2=Engines&Category3=Gas+Engines%2C+Vertical&Manufacturer=Briggs&Category4=Vertical+1%22+Diameter+Shafts&Category5=Single+Cylinder+Vertical+1%22+Diameter+Shafts&Completeengine=Standard+Engine&Horsepower=10+to+13.9hp&sort_by_field=Price+Low+to+High

went on ebay last night .lots an lots of engines . how in the world will i know witch one will fit?

also. i will keep going and work on this motor to learn on. so i have to split the case to get to the rod. but do i have to pull the motor out completly?

Yes

ice said:

went on ebay last night .lots an lots of engines . how in the world will i know witch one will fit?

also. i will keep going and work on this motor to learn on. so i have to split the case to get to the rod. but do i have to pull the motor out completly?

Click to expand...

Got to one of the sites that specialise in repowering mowers
Small Engine Supplies I think is a sponsor of this site so it would be nice to use them.
On the site are details on how to measure your engine
All of thier engines have the dimensions if you click on the more information.
Almost any B &S engine with a 1" pto shaft will fit.
99% of the variations are the alternator fitted, colour of the cover, type of air filter, type of fuel delivery, type of starter ,name on the tag etc etc etc.
Bigger engines will not make the mower go any faster but will have more power and use more fuel.
SES had some 11Hp for $ 230 + freight and that will come close to the price of a piston, con rod, pushrods and gasket set and have warranttee.
On smaler engine I try to find a duel starting engine so you don't have to worry about jump starting.
On a RER the engine height is not important as there is no hood and on a flat deck like the Snapper length is not particularly important either.
However you might need to rig up some sort of fuel tank as your motor came with fuel tank attached to the motor and most modern ones use a remote tank.
They changed the way Hp is measured sinc your otor was sold so now the same motor would be called 8 Hp

"However you might need to rig up some sort of fuel tank as your motor came with fuel tank attached to the motor "

What??

Walt Conner

ok i will pull motor this weekend . the cylinder wall is cherry ssmooth as glass . the connecting rod is $50.00 dollars . i will browse lightly for a used or old stock. i also will need a spark plug coil and gasket set . huumm ???? under a $100.00 bucks? just to get a motor ship to me will be close to$70.00 ...hayward ca 94541

got it all apart. it is the connecting rod. everthing else is clean . diffantly worth re building