yohy Posted July 27, 2006 Share Posted July 27, 2006 OK, background; 1997 Legacy L sedan with 149,000. I just finished up with timing belt/water pump/hoses/etc. Prior to the work, the car exhibited a severe case of piston slap when cold, matter of fact, it could have been the poster child for the symptom. Since finishing the timing belt job the car has become almost quite on start up, with minimal “slap” noise. I cannot come up with any reason for the change and am baffled by any sort of connection between a timing belt and the issue of piston slap. Now it is not that I am unhappy about the change, but just baffled as to why. Anyone? Quote Link to comment Share on other sites More sharing options...
Manarius Posted July 27, 2006 Share Posted July 27, 2006 mmmph. I've never even heard what piston slap sounds like. You probably just tightened up the timing belt which made it run better, that's all. Quote Link to comment Share on other sites More sharing options...
nipper Posted July 27, 2006 Share Posted July 27, 2006 You can also be confusing a sloppy belt with a fully extended tensioner for piston slap. BTW did you replace the tensioner? nipper Quote Link to comment Share on other sites More sharing options...
idosubaru Posted July 27, 2006 Share Posted July 27, 2006 like he said it's more likely that something sounded like piston slap and doing the work you did corrected it. COOL!!!!!! WILL YOU WORK ON MY CAR!!!! Quote Link to comment Share on other sites More sharing options...
yohy Posted July 27, 2006 Author Share Posted July 27, 2006 Believe me, I am most certain with regards to what "piston slap" sounds like and the various characteristics of “slap”. It is a cold start issue, sounds like a diesel that slowly dissipates as the engine warms up. Have been dealing with it for years. Check out http://endwrench.com/images/pdfs/coldEngine.pdf Now nipper, I didn’t replace the tensioner as it fell within all parameters, oil leakage, rod extension, etc. Now the endwrench article mentions the tensioner, belt and sprockets as potential sources of noises that sound like deep internal knock. I have taken the car to three different dealers over the last several years to get their opinions and all come up with the same issue, piston slap. But, if the symptoms are gone….yippee as it was a rather embarrassing noise and did sound as if the engine was going to come apart. Lastly, grossgary, this was my first attempt at a timing belt, so I was just pleased when I turned the key and it started. This unintended consequence just makes the satisfaction that much greater. Quote Link to comment Share on other sites More sharing options...
Andyjo Posted July 27, 2006 Share Posted July 27, 2006 Sorry... but when i first read the title i though 'oh man, he get someone pregnant... :rolleyes:" Sorry.. i know others were thinking it too :-p Quote Link to comment Share on other sites More sharing options...
yohy Posted July 27, 2006 Author Share Posted July 27, 2006 Another endwrench article on the issue: http://endwrench.com/images/pdfs/OtherInfo.pdf Quote Link to comment Share on other sites More sharing options...
nipper Posted July 27, 2006 Share Posted July 27, 2006 Sorry... but when i first read the title i though 'oh man, he get someone pregnant... :rolleyes:" Sorry.. i know others were thinking it too :-p now now no we werent, anr the other post with 420 in it was referncing oregeno nipper Quote Link to comment Share on other sites More sharing options...
yohy Posted July 27, 2006 Author Share Posted July 27, 2006 Andyjo, I believe you can tell the age of the forum member by his interpretation of the title. For me, I am old enough NOT to have to worry about those consequences. Quote Link to comment Share on other sites More sharing options...
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