<VV> Noisy lifters

[James Cuneo]

Mark, I am using valvoline vr1 20-50. It has zddp. Tapping is much less when oil is cold, gets worse at operating temp. Break in oil was 30wt and tapping was worse. Higher viscosity has a quieting effect. Oil flow appears normal.Jim

Date: Wed, 25 Jun 2014 08:53:25 -0700
Subject: RE: <VV> Noisy lifters
From: 62vair at gmail.com
To: jamescuneo at hotmail.com
CC: virtualvairs at corvair.org

What oil are you using, and was there a good oil flow out to the rockers when you adjusted them. If the pattern is otherwise normal on the half moon one the half moon is probably a scratch during break in.


Put Castrol 20w50 in it with an zddp additive and see what happens. My pt cruiser has always run a bit odd on 10w30 synthetics, got tired of it and went  to the castrol dino oil above and the engine smoothed out and gets better mileage, on that heavy oil. Go figure.

Mark Durham Hauser Idaho 

62 2Door Coupe 4speed Red/Red
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