according to bentley manual...
JH engine compression = 131-174 (new engines)
wear limit = 109
max. difference between cylinders = 44
2H, PL engine compression = 145-189 (new engines)
wear limit = 109
max. difference between cylinders = 44
A much greater wet reading will indicate cracked or broken piston rings.
Head gasket may be another place to check for leaks. There is not
too much of a change between wet and dry readings. Everything looks
fine.
David Zanotti wrote:
Attempting
to asses the health of my '88 16v. It has run well for the last few years,
but is now close to 130,000 miles. I was wondering if I should start
thinking about an engine rebuild. I started with compression testing.
Here are the results:
| cyl1 |
cyl2 |
cyl3 |
cyl4 |
| 195 |
190 |
200 |
190 |
| 215 with oil |
230 with oil |
210 with oil |
230 with oil |
Max difference between cylinders
dry: 10psi
Max difference between cylinders
with 1/2 tsp oil added prior to test: 20psi
On the first couple of cranks I
was getting 80-90 psi and subsequent 5 or 6 cranks sent the needle to the
numbers shown above.
So my question is, do the numbers
look ok? I haven't got the factory specs to compare them to.
Also, I'm about to attempt to change
my clutch. does anyone have a good procedure for this? If there
is a written procedure somewhere online, I'd like to get a copy of it.
David Zanotti
--
DanK
'87 16V Black
My Scirocco Page
http://www.uwm.edu/~kroenke
--
Email problems to: scirocco-l-probs@scirocco.org To unsubscibe send
"unsubscribe scirocco-l" in the message to majordomo@scirocco.org
|