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Transmission Front Cover Shim

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Old 12-16-11, 04:09 PM
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Transmission Front Cover Shim

With my 90' mtx out of the car I decided I should replace the front cover housing & seal like Mazdatrix catalog suggest. It came with the seal installed, but in the FSM a shim is shown in conflicting locations.

FSM Section-page J1-41shows a cover-shim-seal
FSM Section-page J1-11 shows a cover-seal-then shim

Do I even need to worry about this 'shim' if Im just replacing the cover???
Thanks
Old 12-17-11, 12:04 PM
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Just put it back together the way it came apart, and everything will be ok. It looks as if the shim doesn't conflict with the seal anyways. Look at the 3rd pic (inside the circle) on page j1-41.
Old 12-17-11, 12:59 PM
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Still looks confusing to me, but I guess I'm over complicating things. Thanks AGreen.
Old 12-19-11, 05:16 PM
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Just in case someone else has a question of the 'shim', I took photos of the front cover replacement in sequence. The shim was on the transmission side. For the last picture I didn't have moly grease for the throwout, or shift fort, so I used Amzoil Synthetic grease. I'm thinking that's ok?
Attached Thumbnails Transmission Front Cover Shim-dscn1115.jpg   Transmission Front Cover Shim-dscn1120.jpg   Transmission Front Cover Shim-dscn1121.jpg   Transmission Front Cover Shim-dscn1122.jpg   Transmission Front Cover Shim-dscn1123.jpg  

Old 12-19-11, 05:37 PM
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Are you sure that's not a bearing shim? That third pic really looks like it's the diameter of the outer race of the input bearing.
Old 12-19-11, 05:48 PM
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OK. I think I'm right on this. Look at the FSM page J1-18, bottom illustration, item 7.

It appears to be the shim for the main shaft front bearing.
Old 12-19-11, 05:49 PM
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Yeah, it was a shim around the bearing. It also seats right inside the front cover.
Old 05-01-22, 05:34 PM
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Where can you purchase that type shims?
Old 05-02-22, 07:45 AM
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Originally Posted by ernz
Where can you purchase that type shims?
This thread is 11 years old.
17-287J Shim, Adjust (w/o Turbo)
9996-36-310, T = 0.1mm
9996-36-315, T = 0.15mm
9996-36-330, T = 0.3mm
Try Mazda dealer, if they're still available.
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