Rattle sound

Discuss topics related to the CA18DE and CA18DET series engines.
Mateo_S13
Posts: 5
Joined: Tue May 12, 2015 4:22 pm
Car: 92 S13 CA18DET

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Hello folks! My Name is Mateo, Im from Uruguay and i recently bought a 200SX with a CA18DET inside with 157.000km on it.
First of all excuse me for my english, it is not my mother language
It is in mint condition, because here, in Uruguay, cars are really expensive, and a 200SX is not the exception.

I started this thread because I`ve been hearing a weird rattle in the engine. Im a automotive technician, but im new on this kind of cars, and also here is very difficult to find parts for this car.

The noise i hear is pretty similar to the one in te following video (anyway I`ll try to make a video from the actual car)
When you rev the engine it makes the noise when it starts going down to idle, but it does nothing when you drive it hard. It appears to come from the head. Did anyone had a similar problem?

https://www.youtube.com/watch?v=6s7tZ3wAWjY

I hope you can guide me to fix it, any help will be appreciated!


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sjbsuperman1425
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Car: 1989 Nissan 240sx
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My first thought would be the idler or tensioner pulley's for the timing belt.

Mateo_S13
Posts: 5
Joined: Tue May 12, 2015 4:22 pm
Car: 92 S13 CA18DET

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It appears to come from the head and its a metallic kind rattle, Pulleys would be more like a buzz i think. Can the pulleys make that kind of noise?

Mateo_S13
Posts: 5
Joined: Tue May 12, 2015 4:22 pm
Car: 92 S13 CA18DET

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Here is a s*** video from the actual car. @ 00:26 you can hear it pretty clear

https://www.youtube.com/watch?v=0U2lX6KtLm0

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Cams
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Car: 1993 Nissan 200sx CA18(DET) RS13
2002 Mitsubishi Airtrek JDM 4G63T (wife)
2013 Scion FR-S
2016 Infiniti QX50
Location: Panama, Central America

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Hola Mateo, bienvenido y saludos.

Couldn't the noise be related to stuck/dirty valve lifters (taques/buzos)? I know my car used to have a similar noise. Not sure if it wasn't there after cleaning them on the previous rebuild.

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Cams
Posts: 307
Joined: Sat Jan 27, 2007 3:42 am
Car: 1993 Nissan 200sx CA18(DET) RS13
2002 Mitsubishi Airtrek JDM 4G63T (wife)
2013 Scion FR-S
2016 Infiniti QX50
Location: Panama, Central America

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[youtube]http://www.youtube.com/watch?v=uWVb13FuZUc[/youtube]

Not it is entirely similar.

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themadscientist
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OUCH! That's a terrible noise. I would think lifters are gummed up or bled down.

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float_6969
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Sounds like lifter tick to me, and not just one, but lots of them. Check oil pressure first.


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