93sr20det

whenever my engine is at idle or below about 2000-2500 rpms a ticking sound (more like metal on metal) can be heard. if you increase the rpms while still under the 2000-2500 mark the ticking does not change frequency, so i don't think it is the timing chain although it is coming from that end of the engine.

zhanggolden

could be that one of the 4 cylinders doesn't work at that speed range. Plug out the spark plug wire one by one to check if something or not. By careful, it's high voltage and might have arc.

Shogunn

I think thats a common problem with the KA, I read some where after hearing this sound myself that it was a common problem but it wasnt anything that would cause problems, just more of a nuisance, if we are talking about the same thing which I think we are.

93sr20det

yeah i talked to a guy with a pickup and he said his had done it for a little over a year with no problems i think it is just the valve lash out of wack

blackaltima

Change your oil and it could stop making tick sound.. Happened to my 240sx with KA before and it stopped making tick sound after i change oil.. Haha

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1993 Nissan U13 Altima
1993 Nissan B13 Sentra SE-R(engine blown up)
1989 Nissan S13 240SX(engine blown up)

KA24Tech

I would agree with this as well. If your car has alot of miles and you are using say a 5w-30 oil it can make a noise like this. I would try moving up a vis range and use a Nissan oil filter to see if this clears up the noise.

Troy

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SHIFT_Happiness
1992 S13 240SX SE Fastback KA24DE 5 spd - Type X Aero & Seibon Carbon Hood & Hatch -soon GT28RS
1993 U13 Altima SE KA24DET 5 spd w/ Nismo LSD - A high hp FWD can be fun (GT30R Turbo inside)
1990 Z32 300ZX VG30DETT 5 spd - 600HP & Very Civilized (working on twin GT28RS turbos)
Still trying to import a 1988 R31 Skyline GTS-R w/ RB20DET-R - only 800 produced (legal under show/display regs)