Snapper Lawnmower problem


Old 12-20-07, 04:23 AM
Thread Starter
Join Date: Sep 2007
Location: Cottage Grove, MN
Posts: 239
Snapper Lawnmower problem

I picked up a self propelled Snapper lawnmower from a friend that needed some work. I took the carburetor apart to rebuild it and found it was literally full of white crumbly corrosion type stuff. The needle valve was stuck in the bore and the stem the bowl nut screws into has some notches in the bottom from corrosion.. Long story short, the carb is shot. All I really need is a Carb main body as everything else from the carburetor is fine. I can post a picture of the old (float bowl type) carb if anyone wants it. Engine numbers are: 1987 Briggs 4hp 111702 3047
Sponsored Links
Old 12-20-07, 07:07 AM
indypower500's Avatar
Join Date: Aug 2007
Location: new hampshire
Posts: 118
The part number for the complete carb is 491002. The body alone is not available from Briggs. Carb is about $75.
Old 12-20-07, 08:56 AM
Join Date: Jun 2006
Location: St. Louis
Posts: 2,365
If you have a small engine shop any where close you should be able to get a used carb for $10.00. Have a good one. Geo
Old 12-20-07, 09:51 AM
bontai Joe's Avatar
Join Date: Apr 2004
Location: Pennsylvania
Posts: 592
Any ideas as to what caused such bad corrosion?
Old 12-20-07, 10:10 AM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 20,977

Short answers...age, bad gas, water in the gas, poor maintenance.

That white crumbly stuff is prob aluminum oxide (rust equivalent). Be glad you don't own a salt water boat, you'd know it intimately.

Best in 2008
Old 12-20-07, 11:28 AM
Join Date: Nov 2007
Location: NE Okla
Posts: 432
My experience with white crumbly stuff is having water sit in carb, have used Lime-A-Way to clean it up.
Old 12-20-07, 12:05 PM
Thread Starter
Join Date: Sep 2007
Location: Cottage Grove, MN
Posts: 239
it is definitely corrosion, and it is corroded so bad that the holes that hold the float pin are almost corroded away as well as the outer part of the stem the bowl nut threads into. I dont know what happened to it in the first place as I got this second hand. The maintenance was not good as the oil came out looking like molasses.. however the engine does run with a newer style of gas tank/carb but the tank/carb doesnt fit "well".. I'll look into a used carb but If I cant find one I'll just junk it. the cost for a new carb from Briggs is $47-$56 which isn't worth it since the mower is 20 years old..

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes