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Re: towing a Tiger

To: John Clark <clarkjc@runbox.com>
Subject: Re: towing a Tiger
From: Theo Smit <tsmit@shaw.ca>
Date: Tue, 12 Oct 2004 21:55:52 -0600
This is belaboring a point, but... unless you decelerate just exactly as 
much as you accelerate, your car is going to remain in motion ;). While 
deceleration torque through the differential is vastly outweighed by 
acceleration and steady-state torque (to overcome wind resistance at 
speed), you will, over the life of the car, accumulate thousands of 
miles of 'coasting', and, if you do The Right Thing and leave the clutch 
engaged while you're doing coasting or decelerating, then that will 
definitely put some wear on the back side of the ring and pinion gears. 
Not that there's anything wrong with that... it's just not designed to 
take big loads for a long time in that direction. Freewheeling the 
pinion gear, or even the transmission when it's in neutral, isn't a big 
load.

On the 'marking the driveshaft and pinion' thing: As Mayf points out, 
driveshafts are balanced as a single piece, without the U-joints in 
place, and the pinion shaft is similarly balanced by itself. Marking the 
relative positions of the two is not so you don't accidentally try to 
reassemble them 180 degrees out of position... it's so dimwits don't try 
to put it back together 90 degrees out of position. The fact that 
nothing lines up when they try that doesn't seem to stop some folks.

Best regards,
Theo Smit





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