Jump to content

BayAreaZ650

Front Suspension Issues

Recommended Posts

Hi everyone,


I'm nearly done with my front suspension. I was able to replace the tie rod ends today.

I completely forgot to take photos before I uninstalled everything and I'm stumped. Can you guys please let me know if I have the orientation for the ball joint and tie rod end correct?


Thank you guys!

IMG_1900.jpg

IMG_1899.jpg

IMG_1898.jpg

Share this post


Link to post
Share on other sites

looks upsidedown to me, going to have a heck of a time getting the strut on, it has to fit onto the steering knuckle. Don't you have a FSM to refer to?

 

  • Like 1

Share this post


Link to post
Share on other sites

Thank you Dave! I watched 4-6 different videos and could briefly see it. This definitely is what I needed. Thanks again!

Share this post


Link to post
Share on other sites

I hit a snag today. The rear strut upper spacers disintegrated when I pulled them out. The stores online don't carry them anymore except for one store but they are out of stock for a month. 

 

Can I put the rear suspension together without using the spacer?

Share this post


Link to post
Share on other sites
2 minutes ago, Zed Head said:

Do you mean the part that Nissan calls a spacer?  They compress and deform over time anyway.  You could probably use a big o-ring in its place.

http://www.carpartsmanual.com/datsun/Z-1969-1978/axle/rear-suspension/13

That is exactly that piece you linked that I'm after. Where do you think I can get a big o-ring from? It's roughly .70 inches in height.

Share this post


Link to post
Share on other sites

I'd go to a hardware store.  The good ones usually have a wide selection.  You might have to stack 2 or 3 to get the height you want.  When the spacer is in place it's more like a packing material, probably to keep the metal parts from rubbing together and squeaking.

There's also online, like Grainger or McMaster Carr

https://www.grainger.com/category/hardware/o-rings-and-o-ring-kits/o-rings?redirect=o-ring&searchRedirect=o-ring&searchBar=true

Share this post


Link to post
Share on other sites
41 minutes ago, Zed Head said:

I just called Nissan Parts Deal and they don’t have it in stock. Thank you though!

Share this post


Link to post
Share on other sites

It took me nearly two weeks but I’m finally finished with the suspension on the Z! I believed I stripped the nut holding in the strut (the one in the middle). It just keeps spinning and it won’t tighten. Is it possible to remove this nut with the car’s weight on it or do I have to remove the whole strut tower again?

B505E2D1-304D-4B37-8316-97A99F2CE5F9.jpeg

Share this post


Link to post
Share on other sites

If you have tried to remove it and it just spins then yes you have to remove the strut, hopefully it is the nut that is stripped and not the shock absorber threads.

Wait a minute, it might not be stripped, there is a possibility the shock strut is spinning with the nut in which case you need to find a way to hold the shock strut and prevent it from spinning so the nut can be screwed down.

  • Like 1

Share this post


Link to post
Share on other sites
7 hours ago, BayAreaZ650 said:

It took me nearly two weeks but I’m finally finished with the suspension on the Z! I believed I stripped the nut holding in the strut (the one in the middle). It just keeps spinning and it won’t tighten. Is it possible to remove this nut with the car’s weight on it or do I have to remove the whole strut tower again?

What I have seen happen, is that there is a D shape to the strut hat. The strut piston has a corresponding D shape to it. That is what keeps the inner shaft from spinning when you tighten the nut. If the D shape gets rounded out the nut will spin the piston shaft and it will not tighten. (I just grabbed this pic off the web to show the D notch in the hat).

If you look under the fender at the strut while turning the nut and see the inner strut piston turning as well the the hat is probably rounded out. Like what @siteunseen indicated.The proper fix is to take it apart and find another hat. Zip off the nut with an impact gun and see if the hat is rounded out, and see if you did in fact strip the nut. You could impact drive the nut down to tighten it but that is not a proper fix. 

Just a possibility......

hat.jpg

Share this post


Link to post
Share on other sites

Try loosening the nut with an impact wrench.  Sometimes the combination of shock and vibration is effective in backing off a Nylok nut. 

Share this post


Link to post
Share on other sites

Its hard to see on those thread, but you should have a noticeable flat on the threads that engage the D shape of the strut mount insulator. What was the strut cart you used?

Share this post


Link to post
Share on other sites

Thank you for the replies. I used a KYB Excel-G shock. I spoke to technical support and they said the shock strut is made of a much harder material than the Nylock nut so hopefully it's just the nut that is stripped. 

Share this post


Link to post
Share on other sites

You can mark the shaft with a Sharpie and give the nut a half-turn.  If the mark doesn't move the nut is stripped.  The threads of the Nylock nut are still steel though, shouldn't strip easily.

It looks to me like the shaft is not through the D shaped hole.  The shaft should penetrate farther through the nut, in your picture.

Whatever is happening you should be able to remove the nut with the strut installed without worrying about anything dropping, to see what's going on.  The shock is gas-filled and has a few pounds of upward force on it.  You might be able to move it by hand and it will pop up through the hole if you get the D's aligned.  First thing to do is to get that nut off of there.  An air/impact wrench would work well for that since the D hole is not working.  Worst case it just spins backward.

Share this post


Link to post
Share on other sites
11 hours ago, Terrapin Z said:

What I have seen happen, is that there is a D shape to the strut hat. The strut piston has a corresponding D shape to it. That is what keeps the inner shaft from spinning when you tighten the nut. If the D shape gets rounded out the nut will spin the piston shaft and it will not tighten. (I just grabbed this pic off the web to show the D notch in the hat).

If you look under the fender at the strut while turning the nut and see the inner strut piston turning as well the the hat is probably rounded out. Like what @siteunseen indicated.The proper fix is to take it apart and find another hat. Zip off the nut with an impact gun and see if the hat is rounded out, and see if you did in fact strip the nut. You could impact drive the nut down to tighten it but that is not a proper fix. 

Just a possibility......

hat.jpg

That's funny, that is my photo back from when I had a look at making shock mounts.

  • Like 1

Share this post


Link to post
Share on other sites
46 minutes ago, grannyknot said:

That's funny, that is my photo back from when I had a look at making shock mounts.

Uh-oh looks like I snagged a photo without paying the royalty fee. 😎   Your .0296 cents is in the mail.

I bet a lot of the google images are from this and other forums.

  • Like 2

Share this post


Link to post
Share on other sites

I found the KYB piston nut laying on the garage floor. I ended up reusing the old piston nut (don't my mistake). Since there is a load on the vehicle, do you guys think i'd be able to unscrew and replace the piston nut without putting the Z on jack stands? 

Share this post


Link to post
Share on other sites
6 hours ago, Zed Head said:

Whatever is happening you should be able to remove the nut with the strut installed without worrying about anything dropping, to see what's going on.  The shock is gas-filled and has a few pounds of upward force on it. 

I do.  The springs hold the car up.  You'll be fine and you can get a good look at it.

Edit - actually you want the car on the ground, weight on the strut,you don't want the wheels hanging.  The strut/shock is what keeps the wheel from dropping and the spring from extending.  If you have the wheel hanging and you remove the nut that would be bad.

Edited by Zed Head

Share this post


Link to post
Share on other sites
16 hours ago, Zed Head said:

I do.  The springs hold the car up.  You'll be fine and you can get a good look at it.

Edit - actually you want the car on the ground, weight on the strut,you don't want the wheels hanging.  The strut/shock is what keeps the wheel from dropping and the spring from extending.  If you have the wheel hanging and you remove the nut that would be bad.

Thank you Zed Head. I’ll be working on it this weekend. I’ll keep you guys up to date.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.