dynamytguy
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- May 27, 2023
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I have an18.5 briggs intek. Last year I had an intake pushrod bend. After troubleshooting i found the valve guide on exhaust had moved. Repaired that and worked fine for a while. Oops. I didnt threadlock the rocker arm bolts and intake loosened and bent another pushrod. So fixed that and worked fine the rest of the year. This year right off the mower died and it was the exhaust rocker arm bolt that had sripped out. Put in a helicoil and it worked 2 weeks and bent another intake pushrod. The helicoil strippout and rocker arm bolt was loose sgain. Just replaced the head with oem with valves and rocker arm bolts already installed. Adjusted valves to .004 and .006. Cranked it up. Immediately bent intake pushrod. Help. Any ideas.