I bought a 1989 Nissan 240SX about 3 months ago and it was working fine. Now, it is making a weird knocking sound and I don't know exactly what it is. It is a possibility that it is a rod knocking or a valve, in either case it will cost me quite a bit of money to fix it. Does anyone know if there are any other possible problems that it could have? If so, could you please respond. Oh, I have never been on here before so I don't know what everyone knows, it has a KA24E motor.
i had the same problem of the knocking under the hood i was told that it was the age of the car 93 sentra se and there is nothing that i could do so i still drove it and to come to find out that it was the timing guides and tensionor(sp) for the chain but to make a long story short the car is sitting waiting on a new engine i hope that i can help you out a little bit
later
jonathan
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Thanks for the reply. See the thing is i eventually want to do an SR20 swap, but I currently can't afford it. I am really hoping that it is something more simpler than me needing a new engine now. If you find anything else out, let me know. Some other possible problems I've been told is that it could be a timing chain problem. Well thanks again for the reply.
more than likely it's the infamous timing chain rattle. since you have the KA24E, you're just going to have to have the chain tensioner replaced. unless it's been running like that for a while and fucked up a lot of the head, valves, etc.
Thanks for the reply, yea I have heard the possibilities of all the problems that it could be. I am not sure if it is the infamous timing chain problem though, because sometimes the knock doesn't go away, it does it until it is turned off, but then there are times that it doesn't do it at all. well thanks again and if you have any other ideas about what it could be, please inform me. Nismogirl86@aol.com
you say there are times when it's not making noise at all?
have you located where the knocking/rattling is coming from? is it more of a knocking (like on wood) or more of a metal rattling? if it's a metal kind of rattling, coming from the head, i'm almost positive that it's your timing chain.
if it's not, it may be your injectors. you may be running on bad injectors, and i've heard that the KA's injectors "knock" when they go bad. i've never had that happen to me nor have i seen it, so i'm not sure. i've just heard about it.
if it's not coming from the engine bay at all, check if it's near your transmission hump (inside of your car). then it may be one of many heat shields just rattling (i.e. a flex pipe or something).
im kinda new to this forum also...but i have heard some things cocenring cams....i have heard by swapping the 91 KA24DE cams into my 95 240 it should give me an extra 10hp..i was wondering if that is true....i really would apperceate the help
nismogirl you can also take a metal rod and place it on the value cover and place the other end of the metal rod in your ear to get a better idea where the sound is coming from
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aim sexybabyjb
wearing a turtle neck and a backpack is like having a weak midget on your back trying to strangling you!
now i have another question.....on my 95 240 my valves r tapping real bad.....i have full oil but they still tap bad....especilly when it gets warmed up...i was wondering how i could fix it my self or fix it for a lot cheaper than nissan wants to charge me. nissan says they have to remove the head to fix it.. and that will be like 8 to 10 hours of labor....can anyone help me out here...i would greatly appreciate it
I would appreciate it if people didn't ask questions in my thread....Get your own....Well now my car is sounding even worse than before..nobody seems to know what the problem is either...any more ideas...please let me know...
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