Re: 986 engine noise...i'm stumped

Posted by the tractor vet on June 05, 2007 at 19:07:56 from (75.19.120.54):

In Reply to: 986 engine noise...i'm stumped posted by thepinkpanther on June 05, 2007 at 18:19:36:

Now on a non turboed tractor you can hear some thumpen from the ft. while it is working thru the air cleaner but it is not that loud. like KB said pull the valve cover ya may find a broken rocker or a broken rocker shaft or some pushrod broken on and intake also it could be that the cam has a lobe or two comming off it as this has in the past been somewhat of a problem. And if this is the case you will have to pull the head along with the ft, cover to replace.

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