New head install question

[zKars]

2 hours ago, siteunseen said:

I replaced mine because they had lost the "cup", flattened out. I'd read cupped side down and couldn't tell on the old ones.

I was un-aware they were cupped to start with! as you can imagine, I have quite a few laying around and none exhibit any cup-ish-ness. Can't imagine why they would want them to be cupped, I would think that would consume a good part of the torque you're putting on the bolts or some such. I'm confused. again....

[7tooZ]

On ‎4‎/‎28‎/‎2018 at 3:59 AM, siteunseen said:

I replaced mine because they had lost the "cup", flattened out. I'd read cupped side down and couldn't tell on the old ones.

Attached photo of my new ones from Nissan

[7tooZ]

Finally picked up the parts from the dealer.

[siteunseen]

Thanks for that. I work on a lot of stuff, make mistakes sometimes. 

At least I could provide the correct part numbers. 

[240260280]

On 5/11/2018 at 2:49 PM, siteunseen said:

Thanks for that. I work on a lot of stuff, make mistakes sometimes. 

At least I could provide the correct part numbers. 

Cliff, @siteunseen

 

I am sorry to correct you but you are actually correct.  The original head bolt washers have a smooth edge on the top side and a sharp edge on the bottom side.

 

Got your back! :)