KA24DE 91 240sx ticking and wont rev past 3000

[ram22alaniz]

I have recently installed a used engine in my 240. Finally got the distributor set and its started up. My only problem now is it wont rev past 3000rpm and i hear a ticking noise to be coming form the valve cover. Any ideas on my next step to bringing my baby back from the grave? I couldnt figure out how to upload my video from my iphone but i could email to anyone willing to help me through this. Thanks!

[ram22alaniz]

Just cleaned the MAF and now it rev prefectly. Only this is it deffinatly has a ticking noise and im scared to drive it.

[andisan]

Mine has a tick sound too but I feel like it’s normal for an old engine, now if it’s super loud then I would look into it



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[ram22alaniz]

Yeah im gonna take it for a spin and see how it drives. I just hope its not a bad "tick" and im not sure how to look into it.

[andisan]

It’s called valve slash, my buddy did it in his KA when he rebuild it

If it sounds loud you might want to look into that


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[S14rebuild]

Start it up with the valve cover off....then listen for noise

[jedi03]

can also be the timing chain being loose...eg tensioner sticking or alternately the upper guide removed

[ram22alaniz]

So I reset the distributor and cleaned the MAF and she runs!!!!! Now I still have the ticking so I went ahead and checked my valve clearance. Everything seems to be close expect for cylinder 1. I have .008 and .012 for clearance on the intake valves and .012 and .014 on the exhaust valves. I guess I need to see if I can remove a shin from the intake bucket to get closer to .012

[andisan]

You have to find the right size shim to get the clearance

You have to see what size shim is In there then go to steps down


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[ram22alaniz]

I’m going to search today and see if I can find the old shins from my old engine. If not I guess I’ll have to order some. How can I tell if it’s the timing chain that’s making the noise and not the buckets? Also I’ve driven it around the block a few times and it doesn’t have too much throttle response. I think maybe my injectors might be gunked up. Was thinking about just ordering some cheapninjectors off rock auto.

[Rashid.Yusuf.7]

Check if your exhaust manifold is leaking, I put a new gasket and sealed it up, also was missing 2 studs, I was getting ready to replace the rockers, but after sealing it right, no ticking

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