i recently bought a S/C off the for sale section and i've been trying to figure out what i should do first. but first a little background...
gen 1.5 V6 5speed
current engine mods:
-custom 2.5" exhaust w/ stock pre muff delete
so not much done but i do have 165K on the odometer i change oil every 3-4,000 miles with mobil-1 synthetic and a k&n filter. ever since the car ticked over 165K i've been experiencing some "tapping" from the valvetrain when i drive. now this only happens most noticably around 2K rpm as a slight tapping/ ticking noise. and when i go WOT at around 2-3K rpm it almost sounds like my injen intake is rattling around the throttle body, this sounds like marbles being shaken up in wooden box(weird i know). it goes away at WOT after i go above 3,500 rpm. i think its my buckets and maybe i just need a valve adjustment/ re-shim. i have read that the buckets can creat a dimple in the center but idk. i can do this myself (measure and replace if need be) but i am a full time student and work 5days a week so i haven't had time to take apart my valve covers. AND im a automotive student and can;t find the time lol.
BUT the thing i've noticed while driving is that i only hear the tapping when i drive lightly and when i stick my head under the hood i can't hear the tapping, it's most noticeable in the car or when i drive or next to a barrier that echos the sound outside the car. so maybe its the rear bank that has the problem but im not sure.
has anyone had this problem or am i nuts??? i run 5w-30, and this wasn't an issue over the summer. i don't beat on the car until its warmed up fully and since i started hearing it ive been driving like my grandmother. COULD IT BE THE COLD WEATHER??? i live in New England and thought it could be the drop in temps and cold metal on metal noises. but i've driven the car on long trips and i can still hear the tapping after running the car for 6+ hours. SHOULD I TRY A HEAVIER OIL?? sooner or later i will measure my clearance.
SO i may hold off on putting the S/C on for now. i really dont want to damage my engine right off the bat. Thoughts on this????
my S/C kit has 4psi pulley and comes with a EBC. im not sure if i should install the EBC or not. ive read that i don't need it but wonder if in my case i should install it. i also think i should replace all my engine and tranny mounts since they are original.
i do plan on getting a meth kit and moving onto 6psi but i will wait until i have all the proper upgrades. i also just bought a AEM AFR gauge. ive read i can go WITHOUT a piggy back for now since its only 1psi up from factory boost. i'll be buying a apexi neo asap.
SO TO SUM IT UP:
-i want to run 4psi with no piggy back for now
-debating on installing the EBC
-and have a possible valve tapping/ valve lash/ worn bucket problem
ANY ADVICE WOULD BE AWESOME!!!!! im just itching to go fast at this point
- Regular SolaraGuy Member
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- Joined: Thu Aug 25, 2011 11:05 pm
- Location: New England