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14.5 brigg ohv back fire threw carb and muffler.
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Posted by
jeffrey2525 (
My Page) on
Fri, Jun 11, 10 at 21:39
| ok i put new carb on it new coil new spark plug it run for few mins then dead out.then try it again and it backfire threw the carb and muffler what causeing this problem?also put brand new gas line change gas filter change oil.any help i would thank you guys. |
Follow-Up Postings:
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| Must have been a reason you did this in the beginning, don't see it here. Check your flywheel key. Walt Conner |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| ok how do i hold this while trying to undo the bolt i see no place to hold and do you know what size socket it take.i got the big 15/16 with breaker bar but that not gonna do cause the motor keep turning when trying undo it.any help be great thanks. |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| " do you know what size socket it take.i got the big 15/16 " ?? That should be fine. I use an air impact. Others use large strap wrench. Without impact, I would remove spark plug and feed in a foot or so of 1/4" nylon rope, make sure coming up on compression stroke so valves are closed otherwise may bend a valve. Walt Conner |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| hey i got the bolt out with and inpact.i try pull with a puller but not luck.how a easyer way pull it.i also found the key it was broke i found it today when got the bolt out.thanks walt. |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| B&S has an inexpensive puller or you can make your own. There are threaded holes in the flywheel on each side of the crankshaft where the metal ring holding the plastic cooling fan attach. Remove the bolts and fan, drill holes in flat bar to match holes in flywheel, run bolts thru bar into threaded holes, tighten. Walt Conner |
RE: 14.5 brigg ohv back fire threw carb and muffler.1
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| Forgot to mention, tighten that flywheel bolt to 100 ft. lbs when re-installing or key will shear again. Run bolt back in crankshaft without washer to nearly flush with flywheel, lay bar across that and tighten with bolts as above. Walt Conner |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| hmm well i try a steering wheel puller and it seem it messed up the thread where the bolt gose to hold the flywheel.i have had with this mower mtd yard manchine are worthless junk i have spend up to 250 in parts and gave 390 for this worthless mower.now what will i do?do have replace the crank? |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| "hmm well i try a steering wheel puller and it seem it messed up the thread where the bolt gose to hold the flywheel" You will need to find someone with a threading tap to restore the threads in the crankshaft OR buy a tap. NEVER do anything without protecting these threads. Run the bolt back in the hole without the washer until the bolt head is nearly down to the flywheel, pull against that. Walt Conner |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| thx walt but i have made up my mind to sell.on ebay this thing has been nothing but money pits since i bought.when in a 2 days or buying the coil went out along with spark plug.then the carb went bad.just a money pit i'm into for 550 right now as it stands and not will drop more cash into it. |
RE: 14.5 brigg ohv back fire threw carb and muffler.
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| what size tap will the crankshaft take?or will i need go to bigger size bolt and tap? |
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