Re: Engine tests, oil report, issues - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Well, 80% leak through is a lot but as you discovered the compression is still pretty ok on that cylinder.
That's why a compression test is not really a good way to determine health of an engine.
When also the compression start to show uneven readings and one low cylinder you really have a double serious problem. Now it is only serious.
Yes I can very well understand that you only notice the miss on idle and it runs fine at speeds.
Idle is when a weak engine shows it symptoms both in low intake vacuum readings and misfires. As soon as you rev it up, the pistons manage to pump up enough pressure and vacuum that the symptom goes away.
Anders
SWEDECAR
Posts in this Thread:
- Engine tests, oil report, issues, PM, Sat, 5 Mar 2005 10:48:56
- Re: Engine tests, oil report, issues, SWEDECAR
, Sat, 5 Mar 2005 21:03:35 - Re: Engine tests, oil report, issues, Dean, Sat, 5 Mar 2005 13:35:45
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