--- In peugeot-l@egroups.com, KLebrija1@a... wrote:
> I have a 75 504 that has been running roughly. It does not
burn any
> significant amounts of oil (.5 qt. every 3000 mi.), but it runs
rough. Last
> week I checked the compression and found 3 out of 4 cylinders in
the 140-145
> range (dry). Cylinder #3 read at 85 dry, 125 wet.
> One lister suggested re-adjusting the valves which I will do
tomorrow. I
> was wondering what the logical diagnostic progression would/should
be before
> preparing for a ring job. Again, it is not burning oil.
> Ken in Richmond, CA
You don't need a ring job. You might hav e a leaky valve though. Do
a leakdown compression check to see where the compression is
leaking. My guess is a vacuum leak or incorect idle mixture if it is
just idling bad. Does it run rough at all times? Does it lack
power? All the tune up items checked. The thing that always causes
me grief is bad plug wires. If they"re old or rubbed holes in them
change them.
Jerry
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