loose header bolt = excessive valve noise?

BlackVert

15 Year Member
Oct 3, 2003
5,589
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88
Bethesda, MD
in the last few days, my "normal" valve noise has gotten much louder on the passenger side. it is a very loud clicking noise and it is the loudest when the engine is cold and i am accelerating from a stop.

i looked last night, and there is a loose header bolt on the same side near the place from where the noise seems to be coming. could that be the cause of my noise?
 
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bill302

Active Member
Nov 2, 2005
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alabama,gadsden
www.cardomain.com
very good chance thats your problem,retighten bolt and ensure all header bolts are tightened 20-30 ft. lbs. and a note for reference when installing headers you tighten the header bolts from the center working outward in a two step proceedure first torque all bolts to 15-17 ft.lbs. then step two tighten to 20-30 ft.lbs.
 
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