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Garden Tractors Discussion Forum

Re: 18 hp briggs cam repair?

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joe csuti

11-01-2013 18:02:06

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The acr cam is usually part of the complete cam assembly,get mod/spec# of eng & goto link below,lookup mod/spec# of eng in briggs eng listings,see if acr listed seperate from cam,if not then write down pn for cam,goto ebay & enter briggs cam in search & check if any new/used cams your pn listed,also do a goggle search for briggs + pn of acr(if seperate)or cam pn & do some online shopping for prices,gaskets are avail seperate or complete set,at most you'll probably only need sump gasket & shaft seal if you choose to replace when case split.

To remove cam,turn eng on flywheel side,support eng so it doesn't move around & flywheel cover clear of bench/floor,remove oil sump,rotate crank till crank/cam timing marks line up,loosen rocker arms so valves are not putting pressure on rockers,pushrods & tappets,pull cam out of block.

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joe csuti

11-01-2013 18:17:42

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 Re: 18 hp briggs cam repair? in reply to joe csuti, 11-01-2013 18:02:06  
After re-reading your post,if you get no movement on either valve,the cam gear is probably broken or teeth broken on gear,on many mod briggs eng the cam gear is plastic/nylon.

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George Marsh

11-04-2013 18:14:33

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 Re: 18 hp briggs cam repair? in reply to joe csuti, 11-01-2013 18:17:42  
Joe, the cam gear is OK. The decompression part on cam is not plastic. Found a few pieces of the decompression part. Definately a problem.

Also having a problem findin pn for the sump gasket. Any help is appriciated. There are 12 bolts holding the sump on.

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