Good point. I have a late TR-4 or TR-6 tranny with the thicker flange.
- Tony
At 12:01 PM 6/17/2009, Jim Bauder wrote:
>I had the misfortune to operate a TR3 Transmission without that stay rod for
>some amount of time and finally the bell housing cracked for about
>12 inches all
>the way around the curve of the bell housing and ruining the transmission!
>
>I believe that the use of this stay rod brace was eliminated on later
>transmissions. If you measure the thickness of the bell housing flange that
>bolts to the engine, it is about 3/8 of an inch thick on the early
>transmissions
>but close to 1/2 inch or more on the later transmissions! Much
>stronger! I don't
>know when this change occurred, but my guess is it changed when the gear box
>went to a synchro 1st gear.
>
>My TR250 does not have a stay rod however, I can't speak with any authority
>about the TR4. But if you measure the thickness of that flange and it is ~1/2
>inch you are pretty safe!
>
>HTH and good luck,
>
>Jim
>Jim Bauder
>480-309-9525
>'68 TR250 CD47L
>Scottsdale, AZ
>http://www.triumphowners.com/647
>
>-----Original Message-----
>From: triumphs-bounces@autox.team.net [mailto:triumphs-bounces@autox.team.net]
>On Behalf Of Glenn Owen
>Sent: Tuesday, June 16, 2009 2:11 PM
>To: Triumph Mailing List
>Subject: [TR] TR4 Slave Cylinder Stay Rod
>
>My 67 TR4A is not fitted with the stay rod that runs from the oil pan bolt to
>the clutch slave cylinder mounting hole. I assume it was discarded long ago by
>some mechanic as a matter of convenience. Is it safe to operate the
>car without
>the rod or am I risking some sort of catastrophic failure if I don't
>replace it?
>Thanks
>
>Glenn
>67 TR4A CTC76828LO
>Triumphs@autox.team.net
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