More pics Jim here is my pattern, Help!

Lasttime78 · Post by **Lasttime78** » Wed Mar 19, 2014 9:47 pm

What is a good shim thickness to start out with on the pinion in a 7.5 10 bolt.

Post by **monzaz** » Fri Mar 21, 2014 10:05 pm

The stock one under the original gear set.
.030 -.035 some where in there.

Run the pattern around and around bunches of time you have to be sure the pattern is correct.

JIM

Lasttime78 · Post by **Lasttime78** » Thu Mar 27, 2014 11:48 am

Hey Jim, This is Jim as well This is what I have right now. I am starting out with a .24 pinion shim. I believe the back lash is 4-5 thousands..

Lasttime78 · Post by **Lasttime78** » Thu Mar 27, 2014 11:53 am

more pics

Lasttime78 · Post by **Lasttime78** » Thu Mar 27, 2014 6:16 pm

Some more pics of same pinion shim differant shim stack on carier though.

Post by **monzaz** » Thu Mar 27, 2014 7:32 pm

First off you have to keep the backlash close to the proper distance to check the pattern .002 .003 is JUST too tight. You need to check at .008 -.010

From what I can see the pattern shows too shallow. You will get noise. Try not to use a flash on the pictures just light the gears good and use NO FLASH. Jim

You said on the phone you had .020 for the pinion

HAve to have more backlash. to make sure remove more from driver side and add to pass side. Jim

Lasttime78 · Post by **Lasttime78** » Thu Mar 27, 2014 7:50 pm

I can do that I will post more pics in about a half hour. Thanks Jim

Post by **monzaz** » Fri Mar 28, 2014 8:43 am

I just want to be sure you have it right. Jim

Lasttime78 · Post by **Lasttime78** » Sat Mar 29, 2014 5:51 pm

Oredered more shims here is a couple differant set-up and have the numbers to. Then maybe we can figure out which way to go. shim was 32, backlash 7-8, carrier shims lft.210 rght.259

Lasttime78 · Post by **Lasttime78** » Sat Mar 29, 2014 5:59 pm

2nd set up. pinion shim 37,6-7 backlash,lft carrier shims 222,rght.249

Lasttime78 · Post by **Lasttime78** » Sat Mar 29, 2014 6:09 pm

3rd set up. pinion shim 39, 7-8 backlask,lft carrier 222,rght.249

Lasttime78 · Post by **Lasttime78** » Sat Mar 29, 2014 6:16 pm

4th set up. pinion shim 36, backlash 8-9, lft carrier shims 219,rght.251

Post by **monzaz** » Sun Mar 30, 2014 9:59 am

PLease let me know what you did to the last 4 pictures ?

All you needed to do was open up the backlash...OR is this what it looks like after opening up the backlash at .020 pinion shim?

I need numbers to help you. Jim

Lasttime78 · Post by **Lasttime78** » Mon Mar 31, 2014 10:27 am

this is final as of right now. 35 on pinion, 6-7 backlash, lft carrier shim 224, rght side 248. Ready to button up!!!!!! must have pulled and reset over 75 times.

Post by **monzaz** » Mon Mar 31, 2014 5:13 pm

WOW just hate it... The .020 was the best in all the pictures so far. I can not believe that a .030 shim will end up being the correct shim...??? From all the pictures

ARE you sure your shims are sitting flat and flush on the pinion stem they should not be climbing / bending up ward on the center of the doughnut of the shim. Jim

GOD - Did you ever take pictures of the .030 -.025 shim? with .008 backlash? Jim

forum.jdrace.com

More pics Jim here is my pattern, Help!

More pics Jim here is my pattern, Help!

Re: Starting point for Pinion shims?

Here is my pattern, Help!

Re: Starting point for Pinion shims?

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: here is my pattern, Help!

Re: More pics Jim here is my pattern, Help!

Re: More pics Jim here is my pattern, Help!

Re: More pics Jim here is my pattern, Help!