B&S Model 287707 Engine - HobbyTalk
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Old 04-13-2008, 09:33 PM
Bamafan92 Bamafan92 is offline
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B&S Model 287707 Engine

Needing a little help. Last year while starting my B&S riding lawn mower engine I heard some clanking in the engine. While I was not sure what it was I was quite sure it was internal and not good. However, the engine continues to run and the clanking seems to subside when at full throttle. When I idle the engine down that is when I hear it the worse. I am now smelling and seeing the oil burning getting worse. I am concern the engine is about to become terminal. I have always changed the oil and kept it up. I checked the oil today and it was getting low but still plenty was in the pan. I have been contemplating whether or not I will need a new lawn mower or new engine. I would like to try and rebuild the engine since the lawn mower itself is in good condition. The question is whether or not it is economical to repair the engine or should I just let it blow and buy a new mower? If I can repair it can someone forward me information on a how-to book and where I can purchase parts economically? I figure I have nothing to lose if I find I can not fix it. I am moderately mechanically inclined but can follow direction very well. Thank you.
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Old 04-13-2008, 10:20 PM
pyro_maniac69 pyro_maniac69 is offline
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quick and easy way to tell if the noise is coming from the motor is start it, and let it low idle (since thats when you hear it the most) and take a screwdriver and put it against the block of the motor, and put your ear against it...aka the Beethoven trick.

You should be able to tell if it is definalty coming from there or not.

and the question of if its worth rebuilding or not comes down to how good of condition is the tractor in?
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Old 04-13-2008, 11:06 PM
Gocart Gocart is offline

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burning oil .. white smoke. That would be his rings or valves, right? Clanking noise and white smoke kinda has me stumped.
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