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#11 (permalink) Old 10-05-2012, 04:09 PM
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Quote:
Originally Posted by JuneBug View Post
If you install the crow's foot on the torque wrench so it increases the effective length, then you must increase the measured torque by the ratio of the new length to the old length. You won't be far off if you add 10% to the measured torque.

If you install the crow's foot so the toes point in the direction you are pulling, then there is no change in length and you don't need to make any correction.
Thanks, James. I did a search and finally found located the formula for calculating the torque wrench reading in relation to the length of the crow's foot adapter. It wouldn't cut-and-paste but here is the link (hopefully!):
Torque Wrench Adapter Extended Calculation - Engineers Edge

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#12 (permalink) Old 10-05-2012, 05:43 PM
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Definitely need that special tool to check the torque.



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#13 (permalink) Old 10-05-2012, 07:17 PM
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Quote:
Originally Posted by Dr. Dyno View Post
Correct. That would be at a right angle with the shaft of the torque wrench.
The adapter isn't mickey mouse and cannot affect the reading if installed that way.
That adapter DOES affect the torque reading. Ford uses crowsfeet like these on injector lines and you must use basic math to reduce the amount of torque applied. Generally, it's reduced by 5-10% depending on the length of the TW and the length of the crowsfoot.
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#14 (permalink) Old 10-05-2012, 07:19 PM
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Quote:
Originally Posted by Dr. Dyno View Post
Correct. That would be at a right angle with the shaft of the torque wrench.
The adapter isn't mickey mouse and cannot affect the reading if installed that way.
That adapter DOES affect the torque reading. Ford uses crowsfeet like these on injector lines and you must use basic math to reduce the amount of torque applied. Generally, it's reduced by 5-10% depending on the length of the TW and the length of the crowsfoot.

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#15 (permalink) Old 12-06-2012, 04:56 PM
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just received the Owner's Manual Supplement in the mail for the "Rear Wheel Alignment Adjustment"
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File Type: jpg Supplement.jpg (59.1 KB, 49 views)

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#16 (permalink) Old 12-06-2012, 07:19 PM
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I received mine today. They provide a booklet to keep in your glove box, and you are asked to make sure your "Alignment Professional" reviews it before starting any work.

The booklet contains the torque specs for tightening the various fasteners (41 lbf).

The really interesting thing, is that the torques specified are when using a torque wrench with a fulcrum length of 345mm (1.13 ft) and a SST (22 mm crowfoot wrench).

There is also a page that explains how adding the extra length of the SST changes the actual torque being applied to the fastener and the 41lbf is only correct for the torque wrench and SST described in the book.

The book also says that the Recall will not only examine the vehicle but will be clipping labels to the various fasteners to remind future mechanics about these precautions.

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#17 (permalink) Old 12-06-2012, 08:03 PM
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Quote:
Originally Posted by JuneBug View Post
If you install the crow's foot on the torque wrench so it increases the effective length, then you must increase the measured torque by the ratio of the new length to the old length. You won't be far off if you add 10% to the measured torque.

If you install the crow's foot so the toes point in the direction you are pulling, then there is no change in length and you don't need to make any correction.

Shouldn't you correct in the other direction? The crow's foot attachment increases your mechanical leverage therefore actual torque on the fastener will be greater than that indicated by the wrench.

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#18 (permalink) Old 12-06-2012, 10:11 PM
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Here is a copy of the new Owners Manual Supplement.

The actual recall letter says that a Toyota dealer will inspect the rear suspension arm #1, and , where necessary, replace it with a new one at NO COST to customers.

It says on page #3 of the supplement, that as part of the remedy Caution Labels are being installed to help notify technicians performing a rear wheel alignment, of the importance of proper tightening procedures. This step makes it necessary to bring your RAV in to the dealer even if you have never had any alignment work performed.
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File Type: pdf RearWheelAlignment.pdf (962.0 KB, 68 views)

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#19 (permalink) Old 12-07-2012, 04:41 PM
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I e-mail my tire shop this PDF. He did not know about any recall and said they always get updates to the toque specs if there was any, yet I feel that they had none for this.

I believe in safety, education, and enforcement, not banning, ignorance, and blame.
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#20 (permalink) Old 12-07-2012, 11:33 PM
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Quote:
Originally Posted by dtalk View Post
I e-mail my tire shop this PDF. He did not know about any recall and said they always get updates to the toque specs if there was any, yet I feel that they had none for this.
This is too new for them to have any updates. I will not do alignment adjustments in RAV4 until absolutely necessarily.
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