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undecided
12-31-2004, 07:27 PM
if my 90 celica with 137k miles does this (5sfe) is this bad? i just noticed it recently, 1000 miles till the scheduled 3000mile oil change, i only use toyota filters and use 10w40 motor oil. havent been racing it either. :confused:

imac
12-31-2004, 08:03 PM
have you noticed any power losses or has the car been stalling at all since the clicking started?

Mike431635
12-31-2004, 08:21 PM
If it's a gentle ticking that stays at approximately the same volume all the time, it's probably just valvetrain noise. If it's a moderately loud ticking that increases/decreases as the rpm's do the same, it's likely rod knock. If you have never run the oil out of it, that is very doubtful, especially at 137k.

I'm willing to bet the valvetrain is just showing its age.

To find out, take a flathead screwdriver and push the tip firmly against the top of the valve cover, right next to the spark plug wires. Do this on each cylinder while the engine is running. Try it while pulling the throttle open as well. If it does the same thing against all four cylinders, you should have nothing to worry about :)

undecided
12-31-2004, 09:33 PM
yeah i think it's just the valvetrain starting to show it's age, bc the sound doesnt increase, and i really have to go ahead and listen for it :D thx

Mike431635
12-31-2004, 09:38 PM
np.

I should post a vid/sound file of MY motor. It's only got around 5 or 6k on the rebuilt motor and it ticks like crazy.. and it's very audible. On the 4AFE, the cam gear on the intake camshaft is in two pieces: a main gear and a sub gear. The sub gear and main gear need to have a service bolt stuck through them in two aligned holes when the cam is taken out to keep them from spinning around. Well, Napa took the bolt out of the gears and the subgear is now off by 1 or 2 teeth.

Wanna know what that design does? Eliminates valvetrain noise. Yeah, this situation definitely sucks. But the motor runs like a champ! :)

mister3
01-02-2005, 03:55 AM
if the fuel mileage starts getting worse it would indicate a rod knock -- can pull the wires one by one if it's rod knock and the offending cylinder will quiet down

Jaemus
01-07-2005, 02:51 AM
i've got a ticking too, mine i think is different, because it is silent until about 2000rpm, then ticks incredibly loudly (you can hear it from a considerable distance away) until about 2700rpm when it goes away again completely, any ideas?

Jaemus
01-08-2005, 03:19 AM
also you can only hear it when you rev the engine with no load, or when you've just got the throttle open enough to maintain speed, as soon as you accelerate slightly or close the throttle the noise stops

unfortunately this means you still hear it most of the time while driving

undecided
01-08-2005, 04:28 AM
i've been driving my sisters 91 integra. very noisey engine, 1.8liter twin cam no vtec. ticks all the time under load and not under load, but it runs fine and would give my car a run for it's money so im assuming it's ok :) 144k miles lol

imac
01-08-2005, 05:09 AM
when mine started ticking, it was pretty suddenly, in the middle of a 45-min drive home. and by the time i was almost home it started stallin on me, 3 times within 3 miles. last 3 miles the engine ever drove :( good to hear yours is likely a lot less severe a problem.

Jaemus
01-08-2005, 09:39 AM
i tried what mister3 suggested, and it didnt quiten down, so perhaps it is valvetrain noise somewhere
its damn loud and f*cking annoying

Arcias
01-08-2005, 06:27 PM
My friend had this problem with his Jetta. It turned out to be a problem with his spark plug wires. They were discharging on something they weren't supposed to which caused the ticking. I doubt it's this, I'd go with the rod knock and valvetrain noise, but it's another possibility.

Jaemus
01-09-2005, 03:30 AM
hmm
ill check that
but i think its waaaaaaaay too loud to be ticking from sparks

85gtsblackman
01-09-2005, 09:22 AM
runs sum lucas or 20w50

to be sure when u drain the oil see if theres any metal shavings in the oil, in the bottom of ya pan

Jaemus
01-09-2005, 11:31 AM
hmm
its about due too...

whats lucas? (is this an american thing?)

galcrazi
01-09-2005, 11:35 AM
bro... pop off your valve cover and dump in a quart of marvel mystery oil. coat teh cams REAL well. replace valve cover and run for a couple hundred mi. then change oil as normal. Should shut it up a bit.

Jaemus
01-09-2005, 11:38 AM
marvel mystery oil eh
now to find it

TRDmkII
01-09-2005, 11:53 PM
valve ticking is easy to fix in a honda, they make it so babies can adjust their vavles but toyota uses a system that requires you remove shims and measure and adjust, its a pain in the arse...i would say its most likely vavle train noise, and wouldn't worry about it...lol.

ST162MECH
01-10-2005, 06:49 PM
Valve train noise means that the valves are no longer adjusted correctly this changes valve overlap also the lifters wont be verry happy either.

Jaemus
01-11-2005, 07:34 AM
man
oh well it does have 266k klms on it and it was cheap :)

ST162MECH
01-11-2005, 09:43 PM
Also injectors can get noisy (ticky tick tick)

Jaemus
01-12-2005, 12:43 PM
yeah but at certain rpms and load conditions?