Toe alignment using straight edges - Revision history

EliseS1 man at 20:26, 19 April 2020

2020-04-19T20:26:40Z

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	[[Category:Suspension]]		[[Category:Suspension]]
	[[Category:Lotus Elise]]		[[Category:Lotus Elise]]
			[[Category:S1]]

EliseS1 man at 20:24, 19 April 2020

2020-04-19T20:24:49Z

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	[[Category:Suspension]]		[[Category:Suspension]]
			[[Category:Lotus Elise]]

EliseS1 man at 22:01, 18 April 2020

2020-04-18T22:01:30Z

← Older revision		Revision as of 22:01, 18 April 2020
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	Hope you will enjoy the described cheap and adequately precise geo tool!		Hope you will enjoy the described cheap and adequately precise geo tool!

			[[Category:Suspension]]

EliseS1 man at 21:41, 18 April 2020

2020-04-18T21:41:05Z

← Older revision		Revision as of 21:41, 18 April 2020
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	Now the task of checking toe on wheels front and rear is reduced to putting two straight edges along the tyre sidewalls each side and measure gap from rearmost tyre wall to straight edge. So if one has a gap of front 3.9 to 4.1 mm and rear 0.5 to 0.8 mm one is good to go.		Now the task of checking toe on wheels front and rear is reduced to putting two straight edges along the tyre sidewalls each side and measure gap from rearmost tyre wall to straight edge. So if one has a gap of front 3.9 to 4.1 mm and rear 0.5 to 0.8 mm in this case one is good to go.

EliseS1 man at 21:39, 18 April 2020

2020-04-18T21:39:26Z

← Older revision		Revision as of 21:39, 18 April 2020
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	As the straight edges touch the tyre sidewalls front and rear it is convenient to reduce the task to check the gap from the tyre sidewall to the straight edge.		As the straight edges touch the tyre sidewalls front and rear it is convenient to reduce the task to check the gap from the tyre sidewall to the straight edge.
	That requires a translation of the required distances measured at rim diameter to distance measured on tyre sidewall diameter:		That requires a translation of the required distances measured at rim diameter to distance measured on tyre sidewall diameter:


	<u>Front:</u>		<u>Front:</u>

EliseS1 man at 21:37, 18 April 2020

2020-04-18T21:37:56Z

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	[[File:Front_left.jpg]]		[[File:Front_left.jpg]]


	<u>Rear:</u>		<u>Rear:</u>
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	[[File:Toe_rear.jpg]]		[[File:Toe_rear.jpg]]


	Now the task of checking toe on wheels front and rear is reduced to putting two straight edges along the tyre sidewalls each side and measure gap from rearmost tyre wall to straight edge. So if one has a gap of front 3.9 to 4.1 mm and rear 0.5 to 0.8 mm one is good to go.		Now the task of checking toe on wheels front and rear is reduced to putting two straight edges along the tyre sidewalls each side and measure gap from rearmost tyre wall to straight edge. So if one has a gap of front 3.9 to 4.1 mm and rear 0.5 to 0.8 mm one is good to go.


	Tip 1: Pieces of plastic foil or plastic blocks used for supporting thermo glass in window frames are available in the required thicknesses and are handy and tyre friendly when measuring toe gaps.		Tip 1: Pieces of plastic foil or plastic blocks used for supporting thermo glass in window frames are available in the required thicknesses and are handy and tyre friendly when measuring toe gaps.

	Tip 2: Tyre side walls do not always run true. Repeat the gap measurements four times with the car pushed forward ¼ of a wheel revolution in between measurements and take the average of your readings.		Tip 2: Tyre side walls do not always run true. Repeat the gap measurements four times with the car pushed forward ¼ of a wheel revolution in between measurements and take the average of your readings.


	Hope you will enjoy the described cheap and adequately precise geo tool!		Hope you will enjoy the described cheap and adequately precise geo tool!

EliseS1 man at 21:35, 18 April 2020

2020-04-18T21:35:19Z

← Older revision		Revision as of 21:35, 18 April 2020
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	Rear: From 2.5 mm to 2.7 mm toe-in each side measured on a 406 mm diameter rim.		Rear: From 2.5 mm to 2.7 mm toe-in each side measured on a 406 mm diameter rim.
	Front: From 0.25 mm to 0.35 mm toe-out each side on a 381 mm diameter rim.		Front: From 0.25 mm to 0.35 mm toe-out each side on a 381 mm diameter rim.


	'''Toe measured on rim diameter:'''		'''Toe measured on rim diameter:'''

EliseS1 man at 21:33, 18 April 2020

2020-04-18T21:33:05Z

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	[[File:Right_rear_wheel_distance-komp.JPG]]		[[File:Right_rear_wheel_distance-komp.JPG]]

			The depth gauge of an electronic caliper can be used to measure distance from straight edge to rim fore and aft on the rim and the difference is the toe. You can even zero the caliper on the measurement fore and then you have the resulting toe when you measure aft on the rim.


	'''Toe measured on tyre wall diameter:'''		'''Toe measured on tyre wall diameter:'''

EliseS1 man at 21:25, 18 April 2020

2020-04-18T21:25:32Z

← Older revision		Revision as of 21:25, 18 April 2020
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	# Four 5 liter sprinkler fluid bottles		# Four 5 liter sprinkler fluid bottles

	And the setup is simple:		And the setup is this simple:

	[[File:Straight_edge_left.jpg]] [[File:Straight_edge_right.jpg]]		[[File:Straight_edge_left.jpg]] [[File:Straight_edge_right.jpg]]
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	So we will have to quantify the amount of toe-in of the straight edges which of course will be our references.		So we will have to quantify the amount of toe-in of the straight edges which of course will be our references.

	An Elise S1 and the 340R toe requirements are used in this example.		An Elise S1 and the 340R toe requirements are used in this example but you can edit the numbers below with you cars requirements.

	The distance between the straight edges front and rear is measured as well as the length of the straight edges.		The distance between the straight edges front and rear is measured as well as the length of the straight edges.

EliseS1 man at 21:23, 18 April 2020

2020-04-18T21:23:24Z

← Older revision		Revision as of 21:23, 18 April 2020
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	So we will have to quantify the amount of toe-in of the straight edges which of course will be our references.		So we will have to quantify the amount of toe-in of the straight edges which of course will be our references.

	An Elise S1 is used ~~as an~~ example.		An Elise S1 and the 340R toe requirements are used in this example.

	The distance between the straight edges front and rear is measured as well as the length of the straight edges.		The distance between the straight edges front and rear is measured as well as the length of the straight edges.