Lifters or Injectors? What's tickin, doc?? - Saab 900 Bulletin Board - Saabnet.com
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Lifters or Injectors? What's tickin, doc??
Posted by Jim Watts/Stealthbomber (more from Jim Watts/Stealthbomber) on Wed, 4 Oct 2000 10:01:31
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Something's ticking/clicking. I thought it was a lifter, but a posted response suggested checking injectors. So I stuck a (clean) vacuum hose in one ear and pressed the other end like a stethescope to various points. The loudest clicking by far came from up by the injectors, not down on the block.
Please help me narrow down/confirm diagnosis. Where/what should I check? Where precisely should I place "mechanics' stethescope" to best hear clicking lifters.
If it's the injector(s) clicking, what does that mean? What are signals that immediate repair is necessary?
Same questions, if lifters?
+200k, original lifters/injectors/etc. Moderate performance modifications (sport exhaust, K&N, aggressively tweaked red APC, 3.0 bar, SPG9's A.I.D.). Running beautifully and boosting 50%.
Jim Watts
jpw@zimmreed.com
87 SPG: The Stealthbomber
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