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GT40 Tech - Chassis,Brakes,Tires,&Wheels Chassis and Handling.

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Old 03-17-08, 07:08 PM   #1 (permalink)
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Original Steering Rack?

Go grab your Legate Parts List and see if you can tell me whats wrong with this rack....

Andy
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File Type: jpg Rack 001s.jpg (55.4 KB, 220 views)
File Type: jpg Rack 002s.jpg (58.3 KB, 226 views)
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replica mono chassis
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Old 03-17-08, 08:04 PM   #2 (permalink)
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Re: Original Steering Rack?

Angle of the mounting bracket holes reletive to the angle of the steering shaft? Looks like they would be around 45 degrees off the surface of the chassis where they bolt up.
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Old 03-17-08, 09:53 PM   #3 (permalink)
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Re: Original Steering Rack?

Doc heres the rack thats going in my car. Let me know if you need more pics.
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Old 03-17-08, 09:56 PM   #4 (permalink)
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Re: Original Steering Rack?

I think heres the pic
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File Type: jpg Rack 1.jpg (35.6 KB, 215 views)

Last edited by cushmancomp; 03-17-08 at 10:03 PM. Reason: pic
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Old 03-17-08, 10:15 PM   #5 (permalink)
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Re: Original Steering Rack?

Just waiting for a correct casting of the rack and I'm swapping all the parts.......
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replica mono chassis
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1966 289
48IDA's
This month its going to be red

'This car you have to be measured for...'
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Old 03-17-08, 10:22 PM   #6 (permalink)
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Re: Original Steering Rack?

I know thats been done but have you ever compared the internals of the MGB to the original CAM GEAR parts as used in the GT40's. Are the bearings and shafts the same size? I thought about doing that too but was concerned about the strength of the MGB parts as they were on lighter - smaller cars with alot less tire. Whats your thoughts?
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Old 03-18-08, 05:23 AM   #7 (permalink)
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Re: Original Steering Rack?

I am not anticipating any problems, yes it is not as industrial as the original spec parts but I dont plan on hammering it around Le Mans flat out for 24 hours straight. Also after inspecting the internals last night its a basic design but sturdy. Now I need to find a good machine shop.


Will update on progress.

Andy
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Old 03-18-08, 07:20 AM   #8 (permalink)
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Re: Original Steering Rack?

One i made earlier.
Machining costs were not cheap.
Attached Images
File Type: jpg Steering Rack 2.jpg (58.2 KB, 171 views)
File Type: jpg Steering Rack 3.jpg (57.4 KB, 157 views)
File Type: jpg Steering Rack 1.jpg (58.5 KB, 164 views)
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Old 03-19-08, 07:33 AM   #9 (permalink)
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Re: Original Steering Rack?

Or you could buy one of these very soon, exact original incl material spec.
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File Type: jpg rack07.jpg (19.7 KB, 151 views)
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Old 04-15-08, 04:52 PM   #10 (permalink)
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Re: Original Steering Rack?

Found this...... now where was that milling machine......
Attached Images
File Type: jpg Rack casting 001s.jpg (60.4 KB, 56 views)
File Type: jpg Rack casting 002s.jpg (41.9 KB, 70 views)
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replica mono chassis
original rear clip
1966 289
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This month its going to be red

'This car you have to be measured for...'
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Old 04-16-08, 01:40 AM   #11 (permalink)
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Re: Original Steering Rack?

Quote:
Originally Posted by Doc Watson View Post
Found this...... now where was that milling machine......
you will also nead a lathe, and the exess casting on the front comes off
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Old 04-16-08, 04:32 PM   #12 (permalink)
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Re: Original Steering Rack?

What ratio are the mgb internals? The original cars had 3 different ratios 2 for different tracks and 1 for the MK3 street cars. Most all original race cars used the green stripe paint code as in my pics. This a NOS original I just found and is very quick. I will check the ratio when I get a few minutes to spare.
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File Type: jpg Racks 1.jpg (31.9 KB, 33 views)
File Type: jpg Racks 2.jpg (30.4 KB, 42 views)
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Old 04-16-08, 07:20 PM   #13 (permalink)
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Re: Original Steering Rack?

Will look tomorrow at my rack (later today......) and let you know Jay.
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This month its going to be red

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