engine knocking Options

[jcaron9gt4]

well, as the title says, my engine has been knocking recently. It only does it once in a while, not all the time. Mostly only on startups. however, it also does it when i come to a light, or stop sign...etc. Also when i come to a stop, my oil light flickers sometimes and my rpms drop to like 500 then rise to normal. I check my oil all the time and never let it get low. So i have no idea why it comes on, but the knocking is what's really scaring me. Does anyone know what can be checked to figure out the problem. However all this has been leading me to believe that my engine is on its way out.
btw, i posted in here because its turbo'd, someone can move it into the engine forums if need be...any help/advice will be helpful.

[CaliJeff]

mines not turbod yet and sumtimes it knocks, every once in awhile. my engine has been rebuilt too, with maybe 20k miles on it. i dont kno wat the issue is, but its not scaring me greatly.

[Turbofun]

Should check your oil pressure.

[rjbibeau]

probably a spun bearing in the connecting rod caps

[BlueCeliGT]

probably a spun bearing in the connecting rod caps

i second that, killed two 5s's that way and once the bearing goes you can just scrap the motor cuz it'll take the crank with it

[presure2]

well, as the title says, my engine has been knocking recently. It only does it once in a while, not all the time. Mostly only on startups. however, it also does it when i come to a light, or stop sign...etc. Also when i come to a stop, my oil light flickers sometimes and my rpms drop to like 500 then rise to normal. I check my oil all the time and never let it get low. So i have no idea why it comes on, but the knocking is what's really scaring me. Does anyone know what can be checked to figure out the problem. However all this has been leading me to believe that my engine is on its way out.
btw, i posted in here because its turbo'd, someone can move it into the engine forums if need be...any help/advice will be helpful.

drain your oil, and look for shavings in it.

[celicast3sgte]

i second that idea..

[jcaron9gt4]

last time replaced the oil pan, there were tiny shavings in there...but i hadnt cleaned the pan since i bought it online so i thought they might have been flakes already in there. Cylinder wall im guessing?

[blckcelica95]

last time replaced the oil pan, there were tiny shavings in there...but i hadnt cleaned the pan since i bought it online so i thought they might have been flakes already in there. Cylinder wall im guessing?

could be cylinder walls but highly unlikely. metal shaving/ particals in the oil, is probally either your rod bearings or main bearings. although i had metal particals that were cuase by my turbo failing.

[presure2]

last time replaced the oil pan, there were tiny shavings in there...but i hadnt cleaned the pan since i bought it online so i thought they might have been flakes already in there. Cylinder wall im guessing?

naa, more like rod bearing..
let me know what happens, man...worse case, i think my cousin is gonna be wanting to sell the motor outta the gt in his yard at some point here in the future..
can you get a vid of the engine doing its thing?

[jcaron9gt4]

yea, ill get some up later today...at least im going to school next weekend and wont need the car to be ready untill may....but hows that engine manny? im seriously debating going the 3's route, but i love my 5's

[presure2]

yea, ill get some up later today...at least im going to school next weekend and wont need the car to be ready untill may....but hows that engine manny? im seriously debating going the 3's route, but i love my 5's

joes engine is in ok condition, it ran fine. i wouldnt turbo it, tho, it does have quite a bit of miles on it.
if you can afford to swap, go for it man, you know you have help if you need it.
then again, you can have a built bottom end done for ~ 2k if you really wanted to go that route.

[jcaron9gt4]

thanks man....do you know where i can get an engine with low miles, or fully rebuilt. everyone always says how cheap you can get them, but i cant seem to find any.

[jcaron9gt4]

also, has anyone heard anything about JIS and their rebuild parts?

[presure2]

thanks man....do you know where i can get an engine with low miles, or fully rebuilt. everyone always says how cheap you can get them, but i cant seem to find any.

if your looking for a low mile engine, call around asking for a 98+ celica or camry motor.
you'll pay more up front, but you'll get a better motor, with the metal headgasket.
dont rebuild the motor yourself if your planning on turboing again.
you'll regret it.
www.mtbuggies.com can do the whole shortblock for you, with forged pistons, 3s rods,( they machine the 5s crank rod journals to accept them, which eliminates the weak point in the 5s motors (rod bolts), ect., for ~2k.

[jcaron9gt4]

alot of places online are stating that the 3sfe is the same as the 5sfe except for the motor mount position. i know this is not true though, whats some of the main differences between the 2, other than the displacement change...2.2 to 2.0l

[presure2]

alot of places online are stating that the 3sfe is the same as the 5sfe except for the motor mount position. i know this is not true though, whats some of the main differences between the 2, other than the displacement change...2.2 to 2.0l

DO NOT buy a 3sfe to replace the 5s.
less displacement, older motor, are just a couple of reasons why.
stay away from that ebay crap, justin.

[jcaron9gt4]

haha, i know, i was just curious. anyways, heres some videos, and there not pretty lol. But what i dont get is that its not all the time.

inside car
engine knock

on the first one, turn the volume up and you can here it when the rpms shoot down to like 300

This post has been edited by jcaron9gt4: Jan 6, 2008 - 2:11 PM

[CaliJeff]

wow, thats a very awkward and scary sound. mine actually doesnt sound like that at all, mine sounds diff. i'll start my own thread and get ur guys suggestions.

[jcaron9gt4]

well i hope your not talking about that hissing sound, thats just cause i got a little to close to my belt

This post has been edited by jcaron9gt4: Jan 6, 2008 - 2:25 PM