[urq] lifter clatter

[Brett Dikeman]

On Jul 8, 2006, at 10:42 AM, DGraber460 at aol.com wrote:

> I just got the URQ running again with the newly rebuilt block (WX),  
> and the
> big valve hydraulic head which was sitting for about 4 months is  
> clattering
> annoyingly. The rings rods and mains are new so I don't want to rev  
> it too
> high.  Oil pressure is good, and I'm using Rotella Synthetic 5-40.

Out of curiosity- why are you using 5w-40?  Why not something like  
15w50?

5w is REALLY thin, and that's the weight of the oil until it hits 100  
degrees Celsius.  I used to run 5w30 in the winter, but don't  
anymore- I run 10w30 minimum, as the 10w oil really doesn't make the  
car much harder to start.  I used to run 10w30 in the summer, now I  
run 15w50 after I found 10w30 resulted in the lower and lower oil  
pressures.

Brett