QuestionHi ,
I dismantled my 12hp B@S as the Drive shaft seized on the Sump cover . ( lack of oil ) Internally the engine was good , and it had been running well . I cleaned up the shaft and reassembled .
I can get it to fire , but it backfires and runs poorly ,
I believe the timing to be correct to the marks . I am going to lap the valves , but they do look ok . Carby is untouched .
Any other suggestions ? Do valve springs get tired and allow the valves to bounce ?
The ignition timing and associated Key way seems fine .
I would love to get a manual for this engine , to be able to see service limits for Ring gaps , valve clearnces , piston to bore Etc etc . Do you know where I can locate a workshop manual , other than the owners guide that tells you little more than spark plug gap .
Thanking You , Les ( Australia )
The numbers from the cowling
281707 0226 01 90102231
AnswerHello Les:
>>According to the Numbers this is a Briggs Model 281707, Type 0226-01, Code 90102231 (this Engine was Built 10/22/09 at Plant #31).
>>You should be Able to Purchase a Manual from this Site Addy; http://www.outdoordistributors.com/briggs_and_stratton/briggs-manuals.html and Select the Manual that Covers your Production Year.
>>Did you Hone/Deglaze the Cylinder?
>>Rarely will the Valve Springs have to be Replaced unless they have been Damaged.
>>Check your Model Numbers, Please.
>>I could Not Locate the Engine Model in my Manuals or Online.
>>If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. I Hope you Had a Happy Holiday Season and May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 3 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.
Respectfully
John
