OP6 27 Report post Posted June 13, 2010 E36 !993, 325i My car on startup first thing in the morning makes horrible rattle for 1 or 2 seconds and then quietens down to almost normal. If you turn it off immediately and then start it again there is no noise. I'm guessing it is a hydraulic valve lifter The question is is there anything that I can use, (additive) or do ( oil and filter change done 3000kms ago,) to reduce this ungodly noise? Its starting to get embarrassing! Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted June 13, 2010 It's perfectly normal. All 3 M50's I've owned have done it if the car has been left outside overnight. I think it even mentions it in the cars user manual. Quote Share this post Link to post Share on other sites
OP6 27 Report post Posted June 13, 2010 I think it even mentions it in the cars user manual. Must check that, this one has been getting worse over the last year or so, but now it is scary! Quote Share this post Link to post Share on other sites
nath 131 Report post Posted June 13, 2010 Could be hydraulic lifters or chain tensioner- both require oil pressure not present in head after engine has been left overnight.... chain will make a serious 'clatter' like it is lashing about, lifters a more defined sharp hammer sound(loud tick) Quote Share this post Link to post Share on other sites
OP6 27 Report post Posted June 14, 2010 Could be hydraulic lifters or chain tensioner- both require oil pressure not present in head after engine has been left overnight.... chain will make a serious 'clatter' like it is lashing about, lifters a more defined sharp hammer sound(loud tick) Jeez hadn't thought of the chain tensioner. I shall be trying some Wynns engine flush, fresh Magnatec and oil filter, and perhaps an additive. Cheers for that. Anyone else with ideas, solutions etc? Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted June 14, 2010 (edited) Jeez hadn't thought of the chain tensioner. I shall be trying some Wynns engine flush, fresh Magnatec and oil filter, and perhaps an additive. Cheers for that. Anyone else with ideas, solutions etc? When I got an engine from a wreckers one time I installed it and when I first started it it had the lifter tick for over 40 minutes of driving, just because the lifters had been sitting with no oil in them at the wreckers for so long. I threw some of that Wynns lifter free stuff in and soon after that it freed and the engine was quiet. I'm not sure if it was just coincidence though. Anyway, even after the lifter had freed I kept the Wynn's stuff in until next oil change. Even with that solution in for 5000km it didn't stop it from ticking in the morning after sitting outside all night. Longer than your 1 or 2 seconds though, maybe 4.. In all honesty you are probably wasting $17 on that Wynn's stuff. Edited June 14, 2010 by mark247 Quote Share this post Link to post Share on other sites
kerry 10 Report post Posted June 14, 2010 does it still tick mark? your engine is a minta Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted June 14, 2010 (edited) does it still tick mark? your engine is a minta That was the engine i put in the e36. Yea my engine now ticks for 2 seconds on start up in the morning, but only if I have left it outside over night in the cold. This engines a minter though. Edited June 14, 2010 by mark247 Quote Share this post Link to post Share on other sites
