How to measure Vertical Separation on Rover balljoint??? - Pirate4x4.Com : 4x4 and Off-Road Forum

Buckon37s · 09-21-2009, 08:48 PM

Okay,

This is starting to annoy me. My rover ball is raised about 2in over stock. I think, I don't know. Since I am moving the lower links, where would you guys measure from? The pivot inside? Perhaps the center of upper links? I don't want the ball to fail, I am kinda hard on stuff. Anybody know what stock is?

If I take the measurement from here I have 8.6in of separation. I have to rotate the pinion up 2 degrees from where it is about.

That gives me this link angle:

Thanks guys!

maxyedor · 09-21-2009, 09:25 PM

First, that white PVC won't hold up to what you put your truck through, black sch. 80 PVC is as low budget as I'd go. You should know better than this by now.

Measure the vertical separation at the center of the pivot ball, that's the point where the link pivot revolves around. So center of the ball front to back and up and down.

Buckon37s · 09-21-2009, 10:00 PM

Quote:

Originally Posted by maxyedor

First, that white PVC won't hold up to what you put your truck through, black sch. 80 PVC is as low budget as I'd go. You should know better than this by now.

Measure the vertical separation at the center of the pivot ball, that's the point where the link pivot revolves around. So center of the ball front to back and up and down.

Where is that?

maxyedor · 09-21-2009, 10:58 PM

Quote:

Originally Posted by Buckon37s

Where is that?

Wish I still had the ball-joint that I exploded, would be really simple to measure it out exactly. I can't think of how to describe measuring one out on the internet, I'll measure it out on my truck tomorrow and let you know.

revor · 09-22-2009, 04:15 AM

That center point is pretty much in the middle of the joint. Or midpoint between the top and the bottom edges of the forging that holds the ball joint.

Does that make any sense? It's too early....

Buckon37s · 09-22-2009, 07:21 AM

Quote:

Originally Posted by maxyedor

Wish I still had the ball-joint that I exploded, would be really simple to measure it out exactly. I can't think of how to describe measuring one out on the internet, I'll measure it out on my truck tomorrow and let you know.

Quote:

Originally Posted by revor

That center point is pretty much in the middle of the joint. Or midpoint between the top and the bottom edges of the forging that holds the ball joint.

Does that make any sense? It's too early....

So, a little above where my finger is in the middle of the forging that bolts to the arms?

Devil Dog · 09-22-2009, 07:25 AM

i see you got the pvc... is it the heat treated kind?

The Stig · 09-22-2009, 08:23 AM

X2 The measurement should be at the center axis of where the joint pivots. If you have any tir rod end you shoud be able to use this as reference

Buckon37s · 09-22-2009, 09:24 AM

Quote:

Originally Posted by Devil Dog

i see you got the pvc... is it the heat treated kind?

Once I paint it, it should be strong enough.

Quote:

Originally Posted by The Stig

X2 The measurement should be at the center axis of where the joint pivots. If you have any tir rod end you shoud be able to use this as reference

Right. Guys. I get that. I thought that before I posted this. What I am after is WHERE on the ball that is! Add to it that the ball is on an angle slopeing foreword and I don't know what it looks like internally, and I am lost as to where to pull the measurement. Where I am pointing in the picture is my best guess.

red90rover · 09-22-2009, 10:29 AM

Quote:

Originally Posted by Buckon37s

What I am after is WHERE on the ball that is! Add to it that the ball is on an angle slopeing foreword and I don't know what it looks like internally, and I am lost as to where to pull the measurement. Where I am pointing in the picture is my best guess.

Quote:

Originally Posted by revor

That center point is pretty much in the middle of the joint. Or midpoint between the top and the bottom edges of the forging that holds the ball joint.

i.e. in the center of the gray thing in front of and above your finger.

the drawing is of a typical ball joint internals.

aloharover · 09-22-2009, 10:37 AM

Quote:

Originally Posted by Buckon37s

Once I paint it, it should be strong enough.

Right. Guys. I get that. I thought that before I posted this. What I am after is WHERE on the ball that is! Add to it that the ball is on an angle slopeing foreword and I don't know what it looks like internally, and I am lost as to where to pull the measurement. Where I am pointing in the picture is my best guess.

Remove the nut and seperate from the axle.

Then move the pin from side to side.
From full left to full right.
Use a straight edge to draw a straight line along the center axis of the pin at both extremes.

Basically / \

Where these lines cross is the center of the ball.

I got like maybe 1/2" above where you are pointing. It was just below the center of the socket when measured top to bottom.

Does that make sense?

maxyedor · 09-22-2009, 11:16 AM

Quote:

Originally Posted by Buckon37s

Right. Guys. I get that. I thought that before I posted this. What I am after is WHERE on the ball that is! Add to it that the ball is on an angle slopeing foreword and I don't know what it looks like internally, and I am lost as to where to pull the measurement. Where I am pointing in the picture is my best guess.

I understand your predicament exactly, and think I figured out how to describe it, referencing a tie-rod end is worthless as they're totally different dimensions, may as well reference a zucchini.

Poke around on the top of the ball-joint, unless the D90 is very different from the Disco, the ball-joint should press into an open cup. Fin the top of the ball-joint, that piece of metal is just over .120" thick, and the top of the ball rides against it. Mark the top of the ball on the outside of the cup. Now poke the rubber boot with something that won't mangle the rubber boot and find the end of the taper, that's the bottom of the ball. Find the center-point between the first mark and the bottom of the ball and you've got your point to measure off of +/- .250". If you want to get it even closer than that move the axle up or down until that ball-cup is level, or buy another ball-joint and cut it up.

Dougal · 09-22-2009, 12:56 PM

First question:
How accurate do you need to get it? I'd have thought within 10mm would be fine.

Unbolt the joint, push the threaded shank over to one side and scribe a line up the housing along the line of the shank.
Push the shank over the other side and scribe another line. Where these two lines cross is the centre of the ball.

aloharover · 09-22-2009, 02:38 PM

Quote:

Originally Posted by Dougal

Unbolt the joint, push the threaded shank over to one side and scribe a line up the housing along the line of the shank.
Push the shank over the other side and scribe another line. Where these two lines cross is the centre of the ball.

Awesome idea

Buckon37s · 09-22-2009, 09:21 PM

Thanks guys.

09-21-2009, 08:48 PM	#1 (permalink)
Buckon37s Registered User Join Date: Jun 2003 Member # 20394 Location: San Diego Posts: 4,198	How to measure Vertical Separation on Rover balljoint??? Okay, This is starting to annoy me. My rover ball is raised about 2in over stock. I think, I don't know. Since I am moving the lower links, where would you guys measure from? The pivot inside? Perhaps the center of upper links? I don't want the ball to fail, I am kinda hard on stuff. Anybody know what stock is? If I take the measurement from here I have 8.6in of separation. I have to rotate the pinion up 2 degrees from where it is about. That gives me this link angle: Thanks guys! __________________ BUCK Wild Racing Team 911 Thank you all for your support Widia Cutting Tools www.widia.com PSC www.pscmotorsports.com/ Ruffstuff Specialties www.ruffstuffspecialties.com Artec Industries www.artecindustries.com Tom Woods Drive Shafts www.4xshaft.com www.facebook.com/buckwildracing Last edited by Buckon37s; 09-21-2009 at 08:49 PM.

09-22-2009, 04:15 AM	#5 (permalink)
revor Registered User Join Date: Dec 2002 Member # 15710 Location: I forgot... Posts: 1,258	That center point is pretty much in the middle of the joint. Or midpoint between the top and the bottom edges of the forging that holds the ball joint. Does that make any sense? It's too early.... __________________ Keith [url]www.rovertracks.com[/url] [FONT="Arial Black"][I][COLOR="Red"]"in this case your best best is to put in first, floor it and hold on"[/COLOR][/I][/FONT]

09-22-2009, 07:25 AM	#7 (permalink)
Devil Dog GySgt - Retired Join Date: May 2002 Member # 11922 Location: Wildomar, CA Posts: 1,591	i see you got the pvc... is it the heat treated kind? __________________ Front Toward Enemy 2009, 2011 & 2013 King of the Hammers BUCK Wild Racing Team 911 Degenerate Team 505 Team 488 O.G. "Wreckin' Crew"

09-22-2009, 09:21 PM	#15 (permalink)
Buckon37s Registered User Join Date: Jun 2003 Member # 20394 Location: San Diego Posts: 4,198	Thanks guys. __________________ BUCK Wild Racing Team 911 Thank you all for your support Widia Cutting Tools www.widia.com PSC www.pscmotorsports.com/ Ruffstuff Specialties www.ruffstuffspecialties.com Artec Industries www.artecindustries.com Tom Woods Drive Shafts www.4xshaft.com www.facebook.com/buckwildracing

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

09-21-2009, 09:25 PM	#2 (permalink)
maxyedor Registered User Join Date: Feb 2007 Member # 87150 Location: 1000 Oaks Posts: 2,440	First, that white PVC won't hold up to what you put your truck through, black sch. 80 PVC is as low budget as I'd go. You should know better than this by now. Measure the vertical separation at the center of the pivot ball, that's the point where the link pivot revolves around. So center of the ball front to back and up and down.

09-22-2009, 08:23 AM	#8 (permalink)
The Stig Registered User Join Date: Aug 2009 Member # 140670 Location: Newbury Park, CA Posts: 295	X2 The measurement should be at the center axis of where the joint pivots. If you have any tir rod end you shoud be able to use this as reference

09-22-2009, 12:56 PM	#13 (permalink)
Dougal Registered User Join Date: Feb 2005 Member # 42753 Location: New Zealand Posts: 1,212	First question: How accurate do you need to get it? I'd have thought within 10mm would be fine. Unbolt the joint, push the threaded shank over to one side and scribe a line up the housing along the line of the shank. Push the shank over the other side and scribe another line. Where these two lines cross is the centre of the ball.