Non thirdgen but desperate
Thread Starter
Junior Member
Joined: Jan 2000
Posts: 20
Likes: 0
From: Marietta GA USA
Non thirdgen but desperate
Ok...once again i come back with a 3rdgen question..but this pertains to 3rd gen Nissan maxima 
Symptoms--177k miles, valves tick on and off untill warmed up, sounds like rod knock untill warmed up. Motor had lots of sludge in it, which i pulled oil pan and valve covers and got some(most) out. has clean oil and a factory oil filter on it. Sometimes it takes up to 5 sec to it to build up oil psi on a cold start.
Dont know oil psi due to car only having a dummy light
Now...what do yall think..?
Symptoms--177k miles, valves tick on and off untill warmed up, sounds like rod knock untill warmed up. Motor had lots of sludge in it, which i pulled oil pan and valve covers and got some(most) out. has clean oil and a factory oil filter on it. Sometimes it takes up to 5 sec to it to build up oil psi on a cold start.
Dont know oil psi due to car only having a dummy light
Now...what do yall think..?
TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
trade it for a chevy. it doesn't sound good, but you need to fit a mechanical gauge on it somewhere to check the actual oil preasure.
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ICON Motorsports
1st & 3rd
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ICON Motorsports
1st & 3rd
Supreme Member
Joined: Dec 1999
Posts: 1,237
Likes: 1
From: Reno, NV
Car: yep
Engine: uhuh
Transmission: sure does
Did you clean out the oil pick-up screen??
These have "HLA" type lifters. (hydraulic lash adjusters)
It is very common for these to start acting up in high mileage applications. They are really small lifters in the rocker arms. They plug up real easy.
Belive it or not a couple of dealers around here are putting "Rislone" oil treatment in them and it is cleaning them out.
I just did one with the same symptoms as yours and it worked.
I would try a jug of rislone with an oil change using 10/30 or 10/40, stay away from thick oils, this just makes it worse.
I personally don't like any additives but you have to do what you have to do. Those HLAs are expensive to replace.
This is taking for granted that the noise you hear is valvetrain and not a rod knock.
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ASE Mechanic/Machinist/Smog Tech
1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
GO #3
[This message has been edited by Engineboy (edited December 19, 2000).]
[This message has been edited by Engineboy (edited December 19, 2000).]
These have "HLA" type lifters. (hydraulic lash adjusters)
It is very common for these to start acting up in high mileage applications. They are really small lifters in the rocker arms. They plug up real easy.
Belive it or not a couple of dealers around here are putting "Rislone" oil treatment in them and it is cleaning them out.
I just did one with the same symptoms as yours and it worked.
I would try a jug of rislone with an oil change using 10/30 or 10/40, stay away from thick oils, this just makes it worse.
I personally don't like any additives but you have to do what you have to do. Those HLAs are expensive to replace.
This is taking for granted that the noise you hear is valvetrain and not a rod knock.
------------------
ASE Mechanic/Machinist/Smog Tech
1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
GO #3
[This message has been edited by Engineboy (edited December 19, 2000).]
[This message has been edited by Engineboy (edited December 19, 2000).]
Thread Starter
Junior Member
Joined: Jan 2000
Posts: 20
Likes: 0
From: Marietta GA USA
yeah they're 45 bucks a piece from the dealer, still expensive from a parts chain(about half that). Iv tried Rislone and it didnt do anything 
would low oil pressure cause these symptoms too?
would low oil pressure cause these symptoms too?
Supreme Member
Joined: Dec 1999
Posts: 1,237
Likes: 1
From: Reno, NV
Car: yep
Engine: uhuh
Transmission: sure does
Yes.
I would do as stated above and put a mechanical gauge on it.
See if you have anything left to worry about.
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ASE Mechanic/Machinist/Smog Tech
1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
GO #3
I would do as stated above and put a mechanical gauge on it.
See if you have anything left to worry about.
------------------
ASE Mechanic/Machinist/Smog Tech
1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
GO #3
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