QuestionI have a Briggs Intek 24hp OHV Twin (Model 445777). Early this year it started to sound a a bit off, slight ping, and I figured would need to check the valves but never got to it. I now know the cause was a bent push rod.
A couple days ago the wife started the mower after it had been used a few days earlier with no problems and it started running rough, occassionally backfiring and no power.
Found the left cylinder with the top alumium push rod bent and the lower steel rod missing in action. I ordered new rods and see other notes on this site that indicate Briggs engines often bend rods --- to just replace --- and if it does again look for a root cause and correct.
While waiting for the new rods to come in - back ordered.
I wonder --- do I need to tear the engine down to find the steel rod presumably in the sump or is it something I can likely leave and let alone?
AnswerNo. Get it out of the oil sump. Take this opportunity to inspect the engine internally for any problems.
As far as problem rods, I do not think so. You can always find someone that has had a problem with something. Just like you may not like Fords or you had a problem with a Toyota and would never buy one again.
A bent push rod means that it came to a stop before it went all the way in or out. It was on the valve end or the camshaft end. The keeper may have come off and jammed the valve. Be sure to check it out completely.
