Lifter clacking when cold
#1
Lifter clacking when cold
My 1979 g30 motor traveler (camper /rv) has 5.7/350 engine w/93k miles .when cold start (after sitting for wk or 2 wks ) makes a loud tapping noise under 1 valve cover ,once warmed up totally goes away. Should i be concerned ,any suggestion or info is appreciated . .
#2
CF Monarch
Welcome from Florida. Sounds like you have a sticky lifter. I would try one of the lifter cleaners/oil additives. It will probably get worse if you do nothing.
#5
i have had a ton of small block chevy cars and trucks.....this is what i do and it works every time....some may say NO but i swear it works...time for a cleaning..first.. before your next oil change ( when your about a quart low....old chevys usually lose a little oil between changes..) put a quart dextron trans fluid in your oil. its zero weight and really detergent...run that for about a week. then get some motor flush and 5 quarts of rolleta diesel motor oil...follow the directions on the motor flush then fill motor with the rotella oil ( diesel oil is very detergent also ) do that for the next couple oil changes and the valve tap should go away....you may even see your oil pressure get better as well
#6
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