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R32 Rb20Det Engine Clatter @3000Rpm+


andrew0437
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Hi Guys,

Owned my first skyline for 4 months now, Its an r32 gts-t with an rb20det (all stock) with 206xxxkm's on it. Since the most recent oil change, it's developed an engine clatter from around 3000rpm and up. Most noticeable when I rev it to 3000, hold it there, and pulse it up and down from 2800 to 3200, clatter is loudest on liftoff, but not sure if thats just because there are less noises to compete with.

I got out the mechanics stethoscope and hunted around, the noises seem to be coming from the top end, but I cant seem to pin point it any better than that. the oil I put in was the same as the oil I took out (Shell HX7 10W40 - was crazy cheap on special for fathers day haha)

Wondering if anybody has had a similar problem, from reading around I have read some similar but not quite the same stories where people said it was blocked oil galleries, or big end bearing going (hope not!!)

Something of note - the noise doesnt happen at all when its cold to half warmed up, doesnt develop til its bene running enough to be properly warmed up and hot. - maybe I can get away with a thicker oil to solve the problem? seems a bit bandaidish..

Anybody have any suggestions for me?

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