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Thorpedo · 03-12-2002, 11:50 AM

First i have leaky injectors and now last night while driving, it started making a horrible rattling in the head, the oil light comes on but i checked the oil and its on the H for max.  It almost sounds like valves...its horrible sounding and i can hear it through the exhaust.(the exhaust like pulses out instead of being a smoothe sound)   Any help?

Thorpedo · 03-12-2002, 12:08 PM

It couldnt have anything to do with the timing chain would it?

sil80 · 03-12-2002, 12:22 PM

Are you getting a oil substance coming from your exhaust?

geeaj · 03-12-2002, 12:25 PM

Sounds to me like your valve train is suffering from low oil pressure. Your dipstick says "high" or "max", but it could mean that the oil isn't reaching your top end.

Do this, take off your oil filler cap and start up the car. Look inside and see if oil is spraying around. If not this is a bad thing. Could be many problems tho.

How many miles on your car? SOHC? Oil pumps tend to go after 100k on the ka motors.

geeaj · 03-12-2002, 12:26 PM

Does this occur all the time, or only when the motor is cold, or restarted after sitting awhile?

Thorpedo · 03-12-2002, 12:44 PM

All the time, my car sounded like this when it was low on oil(i had a leaky valve cover gasket)..so i just filled it up and it went away....  Now it wont go away and its all the time..much louder this time as well.  How could i definently pinpoint it to a oil pump because id much rather have it be that   <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sad.gif" border="0" valign="absmiddle" alt='

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Thorpedo · 03-12-2002, 01:26 PM

btw-my car has just over 117k

geeaj · 03-12-2002, 04:53 PM

Is your car a dohc or sohc? If sohc the oil pump is externally mounted and should be easy to replace.

geeaj · 03-12-2002, 04:56 PM

Is your car a dohc or sohc? If sohc the oil pump is externally mounted and should be easy to replace. Its a good thing to do if you have alot of miles.

If you end up doing a timing chain job, I recommend that you change the oil pump anyways..just in case. So either replace it alone or with a chain or valve job. My two cents.

Thorpedo · 03-12-2002, 07:40 PM

Its an 89...sohc

*sykikchimp* · 03-13-2002, 08:27 AM

I've always noticed when the exhaust is pulsing like that, it is generally due to a piston not firing.  Of course this would also cause the car to pulse with it.

Thorpedo · 03-13-2002, 11:36 AM

How hard is it to replace the oil pump on a sohc?

03-12-2002, 11:50 AM	#1
Thorpedo Zilvia Junkie Join Date: Nov 2001 Location: Southwest ohio Age: 39 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	First i have leaky injectors and now last night while driving, it started making a horrible rattling in the head, the oil light comes on but i checked the oil and its on the H for max.  It almost sounds like valves...its horrible sounding and i can hear it through the exhaust.(the exhaust like pulses out instead of being a smoothe sound)   Any help? __________________ 1991 Coupe ::Current Status:: Disassembled Future Status To be determined hopefully reaching a track sometime this year!

03-12-2002, 12:08 PM	#2
Thorpedo Zilvia Junkie Join Date: Nov 2001 Location: Southwest ohio Age: 39 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	It couldnt have anything to do with the timing chain would it? __________________ 1991 Coupe ::Current Status:: Disassembled Future Status To be determined hopefully reaching a track sometime this year!

03-12-2002, 12:22 PM	#3
sil80 Zilvia Addict Join Date: Feb 2002 Posts: 660 Trader Rating: (0) Feedback Score: 0 reviews	Are you getting a oil substance coming from your exhaust? __________________ Five degrees of separation - from you and your license 91 240sx SE

03-12-2002, 12:25 PM	#4
geeaj Zilvia Junkie Join Date: Dec 2001 Posts: 357 Trader Rating: (0) Feedback Score: 0 reviews	Sounds to me like your valve train is suffering from low oil pressure. Your dipstick says "high" or "max", but it could mean that the oil isn't reaching your top end. Do this, take off your oil filler cap and start up the car. Look inside and see if oil is spraying around. If not this is a bad thing. Could be many problems tho. How many miles on your car? SOHC? Oil pumps tend to go after 100k on the ka motors. __________________ Beware the fury of a silent man, be more cautious of his silent farts....

03-12-2002, 12:26 PM	#5
geeaj Zilvia Junkie Join Date: Dec 2001 Posts: 357 Trader Rating: (0) Feedback Score: 0 reviews	Does this occur all the time, or only when the motor is cold, or restarted after sitting awhile? __________________ Beware the fury of a silent man, be more cautious of his silent farts....

03-12-2002, 12:44 PM	#6
Thorpedo Zilvia Junkie Join Date: Nov 2001 Location: Southwest ohio Age: 39 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	All the time, my car sounded like this when it was low on oil(i had a leaky valve cover gasket)..so i just filled it up and it went away....  Now it wont go away and its all the time..much louder this time as well.  How could i definently pinpoint it to a oil pump because id much rather have it be that   <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sad.gif" border="0" valign="absmiddle" alt=''> __________________ 1991 Coupe ::Current Status:: Disassembled Future Status To be determined hopefully reaching a track sometime this year!

03-12-2002, 01:26 PM	#7
Thorpedo Zilvia Junkie Join Date: Nov 2001 Location: Southwest ohio Age: 39 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	btw-my car has just over 117k __________________ 1991 Coupe ::Current Status:: Disassembled Future Status To be determined hopefully reaching a track sometime this year!

03-12-2002, 04:53 PM	#8
geeaj Zilvia Junkie Join Date: Dec 2001 Posts: 357 Trader Rating: (0) Feedback Score: 0 reviews	Is your car a dohc or sohc? If sohc the oil pump is externally mounted and should be easy to replace. __________________ Beware the fury of a silent man, be more cautious of his silent farts....

03-12-2002, 04:56 PM	#9
geeaj Zilvia Junkie Join Date: Dec 2001 Posts: 357 Trader Rating: (0) Feedback Score: 0 reviews	Is your car a dohc or sohc? If sohc the oil pump is externally mounted and should be easy to replace. Its a good thing to do if you have alot of miles. If you end up doing a timing chain job, I recommend that you change the oil pump anyways..just in case. So either replace it alone or with a chain or valve job. My two cents. __________________ Beware the fury of a silent man, be more cautious of his silent farts....

03-12-2002, 07:40 PM	#10
Thorpedo Zilvia Junkie Join Date: Nov 2001 Location: Southwest ohio Age: 39 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	Its an 89...sohc __________________ 1991 Coupe ::Current Status:: Disassembled Future Status To be determined hopefully reaching a track sometime this year!

03-13-2002, 08:27 AM	#11
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 44 Posts: 6,525 Trader Rating: (0) Feedback Score: 0 reviews	I've always noticed when the exhaust is pulsing like that, it is generally due to a piston not firing.  Of course this would also cause the car to pulse with it. __________________

03-13-2002, 11:36 AM	#12
Thorpedo Zilvia Junkie Join Date: Nov 2001 Location: Southwest ohio Age: 39 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	How hard is it to replace the oil pump on a sohc? __________________ 1991 Coupe ::Current Status:: Disassembled Future Status To be determined hopefully reaching a track sometime this year!