Even though you might have found the problem I just want to add that, if you over fill your oil then you will blow some smoke at idle. I had a friend who was putting too much oil in his turbo VL and he was told that the oil was not returning into the sump and was leaking though the seals in the turbo. He had a custom sump and dropped the amount of oil he was using and the smoke went away. Has anyone else heard of this problem?
-----Original Message-----
From: mark krawczuk [SMTP:[EMAIL PROTECTED]]
Sent: 31/03/2002 9:53
To: [EMAIL PROTECTED]
Subject: smokey, l20/turbo/z18 head .efi.......
hi, the turbo has been rebuilt, so i gave the engine a comp test :
a dry test gave a reading ,varying by about 5 psi at 125 psi. each cyl.
a wet comp test gave a reading of about 175 psi in each cyl .varying by
about 5-10 psi.
so looks liike the rings are stuffed.
ii dont know why, the rings and pistons are brand new, having done about 50
km before it started to blow smoke.
the injectors , the guy said when i got it tuned, are running at about 90%
duty cycle.maybe when i hit boost, its starting to lean out a BIT and
is causing the rings to stuff up.?
i know that once when i hit boost for a bit, it said "max duty" on the digi
one display....maybe not supplying quiet enough petrol at max boost?
does any body know of any top quality rings i can get for it? pistons i am
using is z20 pistons.
hope fully the pistons are okay, there is no sign at all of breather smoke
out the rocker cover .....
last time the piston (s) went (due to incorrect fuel settings?) it blew a
heap of breather smoke.......so ...................i hope i dont have o buy
another set.
mark k
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