shogunb Posted December 31, 2016 Share Posted December 31, 2016 Need help in identifying sound coming. I posted the video on youtube. Replaced Knock Sensor. Before that completely removed the right cylinder head to drill to fix broken exhuast studs in the head. Reclocked TDC for Crank off of No.1 cylinder and reset timing based on that. It Idles fine. Drives fine. No Errors Codes. I'm wondering if I burnt a valve up when I had a exhaust leak through the exhaust header gasket. Replaced Gasket today sound didn't leave. Maybe the mating surfaces aren't flat and exhaust gassing are getting by. Hopefully someone has a idea or two. Cheers Shogun 1 Link to comment Share on other sites More sharing options...
RCWD21 Posted December 31, 2016 Share Posted December 31, 2016 That is definitely an exhaust leak. Either from a warped manifold or where the 3 bolt flange is. I fixed that exact same noise on my dad's 93 HB. It was from broken studs too. Did you scrape and sand down the mating surfaces on the manifold and make sure all the bolts/ nuts were able to be tightened down completely? Sent from inside my potato Link to comment Share on other sites More sharing options...
Havocstate Posted September 25, 2023 Share Posted September 25, 2023 What happened with this? Cause I’m having the same issue Link to comment Share on other sites More sharing options...
SquadCarPathfinder Posted February 24 Share Posted February 24 Definitely exhaust gasket, if it sounds like its right on the head its manifold gasket, if it sounds like behind the head its the crossover tube gasket. Make sure you cinch it down so the gasket sits evenly. Loosen it and tighten again if you have to. Link to comment Share on other sites More sharing options...
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