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 knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?

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CityRedneck
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeThu Aug 16, 2012 1:00 pm

Ok, so my mower is about 7years old. And i beat up my engines alot. I hit the throttle on my mower the other day and it knocked once and does it every so often when its at idle and i gas it. What could it be and where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin
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greener179
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeThu Aug 16, 2012 1:53 pm

i dont know were to get a rebuild kit but i wish my mower was only 7 years old mine is a 1974 lol
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WellThatsSurprising
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeThu Aug 16, 2012 1:55 pm

@greener179 wrote:
i dont know were to get a rebuild kit but i wish my mower was only 7 years old mine is a 1974 lol
1974?
Hah!
Mine is a 1969!
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greener179
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeThu Aug 16, 2012 1:57 pm

why kind of mower is yours mine is a mogomeryward 8
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TheRainbowBoxer
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeThu Aug 16, 2012 2:53 pm

Make sure your motor mount bolts are tight... that can make a sound kind of like an engine knock.

Always check the easy stuff first!

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CityRedneck
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeFri Aug 17, 2012 8:44 am

@TheRainbowBoxer wrote:
Make sure your motor mount bolts are tight... that can make a sound kind of like an engine knock.

Always check the easy stuff first!
Yea, they ar tight, i hit them with a impact gun
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dangeroustoys56
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeSat Aug 18, 2012 10:38 am

when you over rev a motor alot, the motor can only handle so much - more then likely its rod knock , meaning either the berings on the rod are wearing out or the rod bolts are loose - if you keep running it, itll eventually blow up- could be valve clatter also - hard to tell.

Best places to find a rebuild kit are Ebay and local tractor parts place- i imagine it wont be cheep either - a buddy of mine bot a rod, piston and rings for $50 for his single 12HP.

Personally, id buy all high performance stuff for it so it can handle more abuse- yeah its alot of money, but then itll last longer.
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CityRedneck
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeSun Aug 19, 2012 6:20 pm

It was a little (not much) low on oil. It does burn oil alot when over rev'ed. I saw some heavy duty engine oil at walmart, should i try it?? i use 10 30. But i mostly wanna just rebuild the topend i guess you can say.
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dked41
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeSun Aug 19, 2012 10:30 pm

You could be using straight SAE 30 oil in warm climates.
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AcreFarm
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeSun Aug 19, 2012 11:22 pm

^^^^^ This^^^^^^
Dump the multi-viscosity and run straight 30w, or go with 40w if the engine is burning oil.
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greener179
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeMon Aug 20, 2012 3:31 am

thick oil works i needed rings really bad put some 20w 50 in it and some motor honey doesnt burn a drop
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CityRedneck
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitimeTue Aug 21, 2012 6:50 am

Ok, Thanks guys! Very Happy Ill grab some the next time i head down to the walmart haha Walmart rocks.
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knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Empty
PostSubject: Re: knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?   knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin? Icon_minitime

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