Nissan Altima
09-18-2009, 10:47 PM
#1
Intrawebz Wizard
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Nissan Altima
Well I've been working on an Altima for a week or so now and I finished changing the tranny and clutch in it and I start it up. the engine is making tons of knocking and pounding like its being beat to death with a hammer. I pulled each spark plug wire and No change in sound at all and if revved it gets REALLY bad. also gets extremely hot and there is flowing coolant in the radiator.
Any ideas what blew up? Its coming from teh timing chain side buy the way. Im thinking Its about to toss a rod or something.
PS. I had to change the oil pan as it was smashed up into the engine, idk if it was enough to get to the pickup tube. so ya I'll post the story bout the car tomorrow when Im not dead tired
PSS its like 90s with an I4 KAsomething...I think...
Any ideas what blew up? Its coming from teh timing chain side buy the way. Im thinking Its about to toss a rod or something.
PS. I had to change the oil pan as it was smashed up into the engine, idk if it was enough to get to the pickup tube. so ya I'll post the story bout the car tomorrow when Im not dead tired
PSS its like 90s with an I4 KAsomething...I think...
09-19-2009, 10:49 AM
#2
Does the valve cover say NISSAN TWIN CAM 16VALVE ? If so, it's the KA24DE.
If the sound is coming from the timing cover, it's probably one of the timing chain guides (the KA24DE has two chains). Pull the valve cover & check the slack on the cam chain.
Did it make this noise before you worked on it?
If the sound is coming from the timing cover, it's probably one of the timing chain guides (the KA24DE has two chains). Pull the valve cover & check the slack on the cam chain.
Did it make this noise before you worked on it?
09-19-2009, 01:36 PM
#3
Intrawebz Wizard
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Join Date: Feb 2009
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Does the valve cover say NISSAN TWIN CAM 16VALVE ? If so, it's the KA24DE.
If the sound is coming from the timing cover, it's probably one of the timing chain guides (the KA24DE has two chains). Pull the valve cover & check the slack on the cam chain.
Did it make this noise before you worked on it?
If the sound is coming from the timing cover, it's probably one of the timing chain guides (the KA24DE has two chains). Pull the valve cover & check the slack on the cam chain.
Did it make this noise before you worked on it?
My friends pot smoking son to the car out mud bogging and smashed in the oil pan and put a hole in it, he drove the car with the hold in the pan for a few hours then put 1 GALLON of oil in the car to keep his dad from noticing and then took the car on a cruise, once he parked it it leaked the final bit of oil left in the car. it was ran without oil for who knows how long.
It wont rev very high at all (like 4K tops) and knocks like a being hit with an air hammer @.@ IMO I think it might be toast... But I'll pull the valve cover and check.
09-19-2009, 02:05 PM
#8
This facepalm's for you!
Join Date: Aug 2008
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the bottom end is garbage
the cam might have lived but theres a good chance thats garbage too
its rebuildable, but your best off replacing it
the cam might have lived but theres a good chance thats garbage too
its rebuildable, but your best off replacing it
Last edited by skib; 09-19-2009 at 02:08 PM.
09-19-2009, 02:27 PM
#11
Intrawebz Wizard
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Already has it lol He "hired" me to work on the car as he doesn't have time too.
Im shocked his kid isnt dead really hes just THAT stupid...
hmm I dont remember seeing anything bad when the oil pan was off. and the hole wasnt really big enough to let metal shavings thought. it was more of a crack. but with that not I think its toast still Would a valve hitting a piston sound like a hammer beating on the engine?
Im shocked his kid isnt dead really hes just THAT stupid...
hmm I dont remember seeing anything bad when the oil pan was off. and the hole wasnt really big enough to let metal shavings thought. it was more of a crack. but with that not I think its toast still Would a valve hitting a piston sound like a hammer beating on the engine?
09-19-2009, 02:34 PM
#14
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even if the a cyl isnt firing the whole rotating assembly is still all moving
Im working on a Ford Ranger right now that spun a crank bearing, the crank is toast.
and Im hoping the rods and cam all check out too
Im working on a Ford Ranger right now that spun a crank bearing, the crank is toast.
and Im hoping the rods and cam all check out too
09-19-2009, 03:54 PM
#18
09-19-2009, 05:00 PM
#20
I took the crank & block to the machine shop & said:
Clean up the crank, bearing journals, new rings, bearings, and re-install the bottom end.
I think the total cost of my bro's 240sx rebuild was about $800 (machine work & parts).
Clean up the crank, bearing journals, new rings, bearings, and re-install the bottom end.
I think the total cost of my bro's 240sx rebuild was about $800 (machine work & parts).
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