hi everybody...reviving this old thread. i had this issue a few months ago before the BHG fix...now its still there and i'm still worried.
I have searched the site for rod knock and came up with some things but i'll describe what i'm feeling and hearing here...
SOMETIMES, not every time, i start the car, and it revs a bit past 1k RPM like i think it should, and as it drops back down to 700 RPM i hear this *knock,knock,knock...* for about 6 or so knocks. Then it stops and idles fine, no odd noises. I usually hear this when i've ran the engine at an earler time, shut it down, and then come back around 20 or so minutes later. (i.e. a trip to the store),so basically the oil and the engine are still warm from driving. i dont think i notice it much if even at all when its a COLD start...sometimes possibly a little noise, but i cant be sure if that isnt the regular starting vibrations messing with my worry-filled mind.
when i drive the car after it does NOT knock on startup...the revvs feel smoother with the clutch depressed, and when i slowly increase RPM from arounk 2k to 3k rpm i dont feel much or any of the knocking noise that I hear when it has been started WARM.
when i do the same thing on a knocking startup, push the clutch in and rev it, i hear this knocking sound which i can actually feel as well as hear. with my feet on the pedals (or on the footrest when in neutral instead of pushing the clutch), i can feel it with my feet as well as my hands on the wheel and through the shifter(5spd). I feel and hear the knocking when i slowly increase revs from around 2k to 3k rpm...and the rest of the range from about 700 to 4k (dont go higher) still feels a bit rougher then "normal".
first thing i thought on this was RK. fits descriptions i have heard, but i was hoping someone had a sound clip of a RK, or could give me ANY possiblities as to what else it could be. my dad and i both thought it was odd that it would only happen SOMETIMES. it seems like this problem should be consistant every time i drive it. i will know better tomorrow, but today, after it ran a bit rough yesterday...it felt fine. maybe the circumstances prevented me from noticing...i will listen carefully again tomorrow and try my best to "control" MY variables (throttle and clutch application)
what we thought it could possibly be...other than rod knock. (trying to hope for the best here...
fuel delivery problem?
throwout bearing?
bad plug wires? (mine are old)
oil delivery issue?
oil selection?
(i have some cheap phillips 5w-30 in there now... i was planning to use that for the flush and then the good valvoline 5w-30)
when my dad comes home i'll have him help me pull the plug wires one-by-one while i start/stop/rev the engine. then i'll listen for knocking with a tube, maybe a hose, and a stick...prodding the block as well as the oil pan. i would do it before posting this but i feel too upset and cant bring myself to go out there and do it yet. i need to be in a good mood incase i get bad news or i might freak out....i wasnt planning on a RK; and my engine doesnt have the mileage I'd EVER expect an engine to do this with...so after putting several hundred into BHG and then driving it again...hearing this just makes me sick. (i might also remove a belt or two and see if maybe its not the engine...if i dont have luck otherwise.)
so if you have any suggestions to what it could be...let me know. thanks a LOT in advance...even if you dont think i have a chance that its something else.
