I Hate Hydro Lifters...

[Spawn_CA18]

Hi all ,

since i bought my CA18DET S13(2008) my hydro lifters are sounding(clicking) like crazy . Even after i rebuild my engine , and maintenanced my lifters , they are still clicking and making me crazy . new set of them(x16) is like 1000$ on Nissan dealer here..

i used 15-50 Motul 300V motorsport , 5-40 motul 300v motor sport , on 15-50 they worked a little less soundy but either way they are clicking.


Is there any solution for them , i'm really planning to switch my 44F head to solid lifters with tomei parts , but this costs be like 3000$ and i don't want to spend more money on CA18Det...

thanks

[Spawn_CA18]

DNJ ENGINE COMPONENTS Part # LIF630

$13.21
Add Part
BECK/ARNLEY Part # 0224005
HYDRAULIC; Exhaust
HYDRAULIC; Intake

$29.79
Add Part


what is the differences between these 2?


thank you so much by the way leadpaw..

[leadpaw]

probably no difference in terms of fitment and functionality.The cheaper ones are probably older stock maybe. hmm my post went away....

for anyone who missed my last post: rockauto.com has ca18de(t) lifters for a 1989 pulsar 1.8 dohc.

[Spawn_CA18]

these are not oem right? aftermarket/outsource parts ? am i right?

[Shagi]

I used RB25 hydro lifters.
Paid $150 for a broken motor.
And still have 8 spares

[float_6969]

http://mizpahprecision.com/
This is where I've gotten all the lifters for my car. They're rebuilt, but they look brand new when I get them back. I just installed a freshly rebuilt set in the new 4 port head.

After the failed oil filter fiasco, I've learned A LOT about the CA18DET's oil system that I wasn't aware of before. First and foremost, check your oil pressure. My lifters were fine when the oil was cold and thick and the pressure was where it's supposed to be. But after the oil heated up and the pressure dropped, the lifters would get noisy. FOR ME, this was due to low oil pressure caused by the previous engine builder not putting the plugs back in the oil galleys in the crank. I'm fairly confident that when I get the engine up and running again, I won't have anymore lifter problems.

If you DO have good oil pressure, and you still have lifter problems, try getting a new set from the place I listed above. After shipping, you're only about $75. If that doesn't fix the problem then you have an obstruction to the flow of oil to the head. What I discovered is that there is a check valve in the block that all of the oil that feeds the head goes through. The openings in this check valve are very small. More importantly, inside the check valve, there is a piece that has even SMALLER openings in it. It would not take a very big piece of something to obstruct this check valve and reduce the oil flow to the head, causing low oil pressure to the head, and of course, causing noisy lifters. This is what that valve looks like after you remove it the wrong way and ruin it, LOL;


To check for this, the head would have to be removed and and then the engine turned over while someone watches the top of the block between the 3rd and 4th cylinders, on the intake side. Oil should come from here;


I think the only purpose this serves is to keep oil in the head after shutdown so that there isn't any lifter noise when you first start it up. As you can see from the first picture, the part that goes on top of the ball bearing has some pretty small openings in it. If anything EVER made it past the oil filter (which is possible if the oil filter plugged up and the bypass opened), it would certainly plug this valve up.

As for removing it, I learned the hard way how NOT to do it. What needs done is to tap threads into the opening that you see in the top of the block. Then thread a bolt into the thread and use a slide hammer to GENTLY pull it out. This valve is very easily damaged and the part isn't available from Nissan anymore. I had to have a new one made at a machine shop, and it took me 4 machine shops before I found one willing to make it, and it wasn't cheap.

I hope for your sake, this isn't your issue though. the most likely problem is low oil pressure, or old lifters.