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camerontech, auto technician
Category: Acura
Satisfied Customers: 482
Experience:  diagnostic auto tech
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Can a valve adjustment if done incorrectly cause a head

Customer Question

can a valve adjustment if done incorrectly cause a blown head gasket?
JA: Thanks. Can you give me any more details about your issue?
Customer: Had a valve adjustment and thereafter had temperature fluctuations which they now say is a blown head gasket. No issues prior to valve adjustment. 2007 RDX. 197k miles. Maintained to the nth degree.
JA: OK got it. Last thing — Mechanics for Acura generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Acura
Expert:  camerontech replied 1 year ago.
hi there,im cam, a licenced diagnostic tech.A valve lash adjustment will not directly cause a blown head gasket.over adjusting (too tight) will cause valve opening too soon resulting in loss of compression and misfire and loss of power.under adjusting (to loose) will cause a noisy lifter (rattling noise) and cause a delayed valve opening causing a misfire also.head gasket failures are usually due to mechanical gasket failure or overheating. there is no real reason to have an engine overheat while adjusting valves as just the valve cover has to be removed to access the rockers. no coolant tubes or hoses are required for removal in this procedure.I am thinking this is a bad coincidence, unless you noticed that antifreeze was removed for some reason and not topped back up resulting in a overheat situation
Expert:  camerontech replied 1 year ago.
hi therehow did your issue go?cam