Gallery Gasket Time?

[Rojoryu]

Just installed a pressure gauge today so I could stay on top off this. Getting 11 PSI when warmed up, 45 psi at 2k rpms. I’m guessing this means the gaskets are on their way out? I also checked oil level to confirm it wasn’t low.

[Rusty]

I'm surprised your oil light isn't on.

[Quicksilvers]

Yes usually the oil light will come on. The motor oil level has nothing to do with the gallery gaskets leaking. When the gallery gaskets leak the oil pressure will drop. Getting an oil pressure gauge is always a good idea. I see you have an 11’ what is your current mileage? Since everything will be apart and you will already be in there do yourself a favor a install new timing chain,gaskets,guides, tensioner,water pump, and aftermarket oil pump gears. You don’t want to have to go in there a second time. I would go with the EPS rear timing cover gallery gasket kit or Genuine Nissan.

[Rojoryu]

Originally Posted by Quicksilvers

Yes usually the oil light will come on. The motor oil level has nothing to do with the gallery gaskets leaking. When the gallery gaskets leak the oil pressure will drop. Getting an oil pressure gauge is always a good idea. I see you have an 11’ what is your current mileage? Since everything will be apart and you will already be in there do yourself a favor a install new timing chain,gaskets,guides, tensioner,water pump, and aftermarket oil pump gears. You don’t want to have to go in there a second time. I would go with the EPS rear timing cover gallery gasket kit or Genuine Nissan.

Thanks. It has 80k miles. I referred to checking the oil level only to confirm that the oil level wasn’t the cause of low oil pressure, and in fact points to gallery gaskets. I was literally about to post asking if I should go ahead and do oil gears, so thank you! I already have a gasket kit from Z1. Here is what I got done today.

[nis350]

Just curious what other symptoms for the gallery gasket failure for those who don't have the oil pressure gauge?

Did Nissan use the same inferior gallery gasket on the 350z motor? I assume they(350z) all had failed by now.

Originally Posted by Rojoryu

Just installed a pressure gauge today so I could stay on top off this. Getting 11 PSI when warmed up, 45 psi at 2k rpms. I’m guessing this means the gaskets are on their way out? I also checked oil level to confirm it wasn’t low.

[Rojoryu]

Originally Posted by nis350

Just curious what other symptoms for the gallery gasket failure for those who don't have the oil pressure gauge?

Did Nissan use the same inferior gallery gasket on the 350z motor? I assume they(350z) all had failed by now.

The same style gasket was used on the 350z, and on the 370z up until the 2012 model when they upgraded to a better gasket material/hardware. Even still, plenty of 350z's are still on the road with stock gaskets. Just luck of the draw I guess. I have read others having low pressure codes and the dash light, but apparently at that point it may be too late and the engine could be damaged. For me, I had no symptoms. From reading on these forums I figured it would be a good measure to add a pressure gauge since this will be primarily a track car.

[nis350]

I recalled looking to buy an 350z long ago and never heard about the gallery gasket issues. I think the same V6 is also used in other models like the g35, g37, Maxima and Altma etc.... Any idea about the percentage of failure rate?

Originally Posted by Rojoryu

The same style gasket was used on the 350z, and on the 370z up until the 2012 model when they upgraded to a better gasket material/hardware. Even still, plenty of 350z's are still on the road with stock gaskets. Just luck of the draw I guess. I have read others having low pressure codes and the dash light, but apparently at that point it may be too late and the engine could be damaged. For me, I had no symptoms. From reading on these forums I figured it would be a good measure to add a pressure gauge since this will be primarily a track car.

[Rojoryu]

We’ll there we have the culprit…

[Rusty]

Originally Posted by Rojoryu

We’ll there we have the culprit…

The screw that is shown in the red circle. The edge of that screw and the other screws that hold everything down. You will want to take a center punch to that edge and put a dimple on that edge and into the metal. If you want to feel really safe. Put another punch mark 180 degrees from it. This will keep the screws from backing out and loosening.

[Averying]

If you can’t find any info about it, bring the bolt to your local hardware store and find a nut that threads on to determine the thread pitch.


Sent from my iPhone using Tapatalk

[Rojoryu]

Originally Posted by Averying

If you can’t find any info about it, bring the bolt to your local hardware store and find a nut that threads on to determine the thread pitch.


Sent from my iPhone using Tapatalk

Thanks. I just went to 3 different ones this morning with no luck

[redondoaveb]

Did you try Ace hardware? They've been real helpful helping me figure out thread pitch in the past. Just for the hell of it I called Z1 and they were no help. They said they didn't know.

[Rojoryu]

Originally Posted by redondoaveb

Did you try Ace hardware? They've been real helpful helping me figure out thread pitch in the past. Just for the hell of it I called Z1 and they were no help. They said they didn't know.

Lol, that's funny because I called Z1 first thing this morning. I also called SOHO which is local to me and they were no help either. I'll give ACE a try. Thanks!

[redondoaveb]

Originally Posted by Rojoryu

Lol, that's funny because I called Z1 first thing this morning. I also called SOHO which is local to me and they were no help either. I'll give ACE a try. Thanks!

No wonder Z1 just blew me off. You had already called and ask the same question

[Averying]

If you have a set of digital calipers u might be able to measure the thread size/pitch yourself.