Is this pattern any good?
Thread Starter
Teching In
Joined: Jun 2015
Posts: 14
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From: Sweden
Is this pattern any good? Hi.
Changed gears and bearings in my 10 bolt.
Gone from series 2 carrier with 2.73 to a series 3 carrier with 3.23.
The car is driven daily and just have some minor upgrades.
Shiftkit, KAI, higher stallspeed converter and Magnaflow.
I have just put on the sticky paint on the gear to check the alignment.
What do you think, is there any need for adjustments?
Best regards alvess
Changed gears and bearings in my 10 bolt.
Gone from series 2 carrier with 2.73 to a series 3 carrier with 3.23.
The car is driven daily and just have some minor upgrades.
Shiftkit, KAI, higher stallspeed converter and Magnaflow.
I have just put on the sticky paint on the gear to check the alignment.
What do you think, is there any need for adjustments?
Best regards alvess
Thread Starter
Teching In
Joined: Jun 2015
Posts: 14
Likes: 0
From: Sweden
Backlash: 0.007-0.009
Is it to deep or to shallow?
(confused, there is contradictory information in diffrent testpattern guides)
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Thread Starter
Teching In
Joined: Jun 2015
Posts: 14
Likes: 0
From: Sweden
-This is why i'am a little confused.
Three guides that claimes the opposite on what to do...
The red ring matches my pattern.
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Looking at his original pics, wouldn't he have to ADD shims to center the pattern? Removing shims would only pull the pinion farther away towards the edge of the ring gear... right?
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
I would add .003 back to the shim. You removed to much shim . This tells you you are in the middle of your last 2 adjustments . Set the b/l at 8 to 9 and do a test pattern and lets see what it looks like .
Thread Starter
Teching In
Joined: Jun 2015
Posts: 14
Likes: 0
From: Sweden
Still confused over the different guides thou..
Guess, trail and error is the way to go.
Will add 0.003 to see what it looks like.. as you said.
Last edited by alvess; Jun 21, 2015 at 12:40 PM.
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
Don't get discouraged . And yes it is a trial and error . It is and art form to learn how to read a pattern . The pictures can help at times but usually can be confusing because different gear manufactures can have different pattern looks that add to the confusion . So trial and error it is until you get the best pattern you can . What lead me to believe you had to much shim was the coast side . It had a hard straight line at the bottom and a round moon shape at the top . The drive side had a hint of the same . This was my reason for only .002 removed .
Thread Starter
Teching In
Joined: Jun 2015
Posts: 14
Likes: 0
From: Sweden
Thanks for all help.. will keep at it.
Need some more advice thou i'am afraid.
Better but not perfect yet?
added 0.03 back in now total 0.025 shims
backlash 0.009 - 0.010 (best i could manage)
Need some more advice thou i'am afraid.
Better but not perfect yet?
added 0.03 back in now total 0.025 shims
backlash 0.009 - 0.010 (best i could manage)
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
It looks a little high on the tooth . Put the B/L at .006 or .007 . Don't change the pinion and lets see what it looks like . I would like to see the coast side also . Try to put some pressure on the pattern to get a good look at it . Don't give up . This is what it takes .
What was the original shim in the first post also . I am surprised just .002 would move the pattern that close to the toe . What was the back lash in the first post . Be sure your pinion torque is consistent . It can change things .
What was the original shim in the first post also . I am surprised just .002 would move the pattern that close to the toe . What was the back lash in the first post . Be sure your pinion torque is consistent . It can change things .
Last edited by homemade87; Jun 23, 2015 at 06:14 PM.
Thread Starter
Teching In
Joined: Jun 2015
Posts: 14
Likes: 0
From: Sweden
It looks a little high on the tooth . Put the B/L at .006 or .007 . Don't change the pinion and lets see what it looks like . I would like to see the coast side also . Try to put some pressure on the pattern to get a good look at it . Don't give up . This is what it takes .
What was the original shim in the first post also . I am surprised just .002 would move the pattern that close to the toe . What was the back lash in the first post . Be sure your pinion torque is consistent . It can change things .
What was the original shim in the first post also . I am surprised just .002 would move the pattern that close to the toe . What was the back lash in the first post . Be sure your pinion torque is consistent . It can change things .
When i changed to the new bearing the mesurement was probably no longer valid.
Lesson learned:
- buy two new rear pinion bearings and make one off them bigger to use for testing.
The orginal shims is 0.027.
The backlash where 0.010 - 0.011
I keep close track of the pinion torque (15 inch lbs).
Will move the ring-gear closer to the pinion.
How much 0.005?
your first pattern looked best. I would've added .002 to the pinion from your original pattern(first pic). that's a very very close pattern. little bit to far towards the heel on the drive side. shoot for .007 backlash. nothing more than .010
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
I should not have used the old bearing (made bigger to slide off/on easier) in the first post.
When i changed to the new bearing the mesurement was probably no longer valid.
Lesson learned:
- buy two new rear pinion bearings and make one off them bigger to use for testing.
The orginal shims is 0.027.
The backlash where 0.010 - 0.011
I keep close track of the pinion torque (15 inch lbs).
Will move the ring-gear closer to the pinion.
How much 0.005?
When i changed to the new bearing the mesurement was probably no longer valid.
Lesson learned:
- buy two new rear pinion bearings and make one off them bigger to use for testing.
The orginal shims is 0.027.
The backlash where 0.010 - 0.011
I keep close track of the pinion torque (15 inch lbs).
Will move the ring-gear closer to the pinion.
How much 0.005?
