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Addicted
Mike Hagadorn
Warren PA
(132 posts)

Registered:
09/27/2013 03:46PM

Main British Car:
1976 TR7 Victory Edition Ford 302

Does this look like a new set of gears?
Posted by: Addicted
Date: July 28, 2014 10:04PM

I disassembled the 8.8 in the back of my TR7 tonight in hopes of installing new gears. I bought a set of ford gears from late model restoration. Maybe this is what new Ford gears are supposed to look like, but they look like used gears to me. Would you say this is a new set of gears?

http://i302.photobucket.com/albums/nn89/74jawa/Forum%20Photos/701176D5-C458-49A9-8A1F-98D1FFD0785B-3435-00000DD805209D17_zpsf6034173.jpg

http://i302.photobucket.com/albums/nn89/74jawa/Forum%20Photos/1739A4F8-E4F5-42B9-A6CA-34AD7FF5689B-3435-00000DD7FAFA4E07_zpsf31cf74b.jpg

http://i302.photobucket.com/albums/nn89/74jawa/Forum%20Photos/3247FFD2-15FC-4107-8B11-67EFA2893AF8-3435-00000DD81254F119_zps6afc4b74.jpg


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Does this look like a new set of gears?
Posted by: BlownMGB-V8
Date: July 28, 2014 10:23PM

Yep, those look new to me.
You'll get a bit of pattern on them from the inspection process. If they'd been run you'd have silver showing. As long as the pattern is even and centered you're good to go.

Jim


Addicted
Mike Hagadorn
Warren PA
(132 posts)

Registered:
09/27/2013 03:46PM

Main British Car:
1976 TR7 Victory Edition Ford 302

Re: Does this look like a new set of gears?
Posted by: Addicted
Date: July 28, 2014 10:30PM

Thanks Jim.


MGBV8
Carl Floyd
Kingsport, TN
(4511 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Does this look like a new set of gears?
Posted by: MGBV8
Date: July 28, 2014 10:36PM

Clean the grease off so we can tell. Like Jim says, the teeth won't be black where they mesh. They will be shiney.


DiDueColpi
Fred Key
West coast - Canada
(1365 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Does this look like a new set of gears?
Posted by: DiDueColpi
Date: July 28, 2014 10:44PM

Agreed. Looks like a new set.
The grease is a little scetchy though.
Is it covering some rust marks?
If the teeth clean off nicely you're good to go.

Cheers
Fred


Addicted
Mike Hagadorn
Warren PA
(132 posts)

Registered:
09/27/2013 03:46PM

Main British Car:
1976 TR7 Victory Edition Ford 302

Re: Does this look like a new set of gears?
Posted by: Addicted
Date: August 02, 2014 11:44AM

Ok Guys,
I cleaned and inspected the gears as you suggested and convinced myself that they had not been installed previously.

Now, I am struggling to get them set up. Here is what I have:
http://i302.photobucket.com/albums/nn89/74jawa/Forum%20Photos/Capture_zps207e5262.jpg

The 4.10's I took out had a 0.035" pinion shim, which is what I started with even though it seemed big.
With about 0.010" backlash, the drive pattern looked nice but the coast pattern was out on the heel (similar to the pics above).

Reading and reading and reading, the coast pattern can be brought toward the toe by reducing the pinion shim and/or decreasing backlash. To help myself, I have layed lines and notes on the pictures (based on Ford instructions). If this looks wrong, let me know.

I dropped backlash a few thou with the 0.035" shim, and it moved the drive pattern too far toward the toe.

So, then I decided to try reducing my pinion shim. I have tried 0.031 and 0.028, but I'm just not getting the patterns where I think I should be (See pics above).

My thought right now is to bring the pinion shim back up (maybe try 0.033) and get the drive pattern centered up with backlash. I'm sure the coast pattern won't look right....

Any other experiences or suggestions you can offer would be appreciated!

Thanks
Mike



Edited 2 time(s). Last edit at 08/02/2014 11:59AM by Addicted.


mgb260
Jim Nichols
Sequim,WA
(2461 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Does this look like a new set of gears?
Posted by: mgb260
Date: August 02, 2014 01:08PM

Mike, This guy explains it pretty good. What ratio did you go with?

[www.youtube.com]



Addicted
Mike Hagadorn
Warren PA
(132 posts)

Registered:
09/27/2013 03:46PM

Main British Car:
1976 TR7 Victory Edition Ford 302

Re: Does this look like a new set of gears?
Posted by: Addicted
Date: August 02, 2014 01:19PM

This is looking a bit better...

http://i302.photobucket.com/albums/nn89/74jawa/Forum%20Photos/Capture3_zps1682300f.jpg

and this may be the winner:
http://i302.photobucket.com/albums/nn89/74jawa/Forum%20Photos/Capture4_zps380a49dd.jpg

It seems strange that reducing backlash from 12 to 9 pulled the coast pattern out onto the heel of the tooth. Oh well. Drive side looks good to me in the 9 to 10 thou backlash range.



Edited 1 time(s). Last edit at 08/02/2014 02:05PM by Addicted.


Addicted
Mike Hagadorn
Warren PA
(132 posts)

Registered:
09/27/2013 03:46PM

Main British Car:
1976 TR7 Victory Edition Ford 302

Re: Does this look like a new set of gears?
Posted by: Addicted
Date: August 02, 2014 01:29PM

Jim, They are 3.15's, which isn't very common. I was debating between 3.08 and 3.27... Then I was on Late Model Restoration, and saw they had Ford Racing 3.15's.

That is a great video. Thanks. I think I watched it several months ago when I was setting up my 4.10 backlash.

I guess I was trying to do what he said by lowering my pinion dept to try to balance heel/toe on the coast and drive sides. He does say that weird stuff happens on some gears. That may be my situation!



Edited 1 time(s). Last edit at 08/02/2014 01:30PM by Addicted.


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