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TR5 - the most desirable Triumph?


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... or dipping the clutch when engaging overdrive.

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What an excellent video! Thanks for posting Deggers. As the owner of a 1968 TR5 I concur with most of the points made, particular the some what clunky gear change and the heaviness of the steering at low speed. I find that the overdrive engages and disengages smoothly.

Regards,

Denis

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16 hours ago, Trumpy said:

I tend to when dropping out of od and decelerating just to smooth things and take strain off the unit but not otherwise. 
I guess the cars all drive a little differently. 

Not a good idea as your not matching engine speed to road speed that way, you should always engage and disengage overdrive with your foot down to match the required engine speed, youll find its a seamless change and your overdrive will last much longer.

Stuart.

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These videos and films always raise my 'blood pressure', but maybe not for the reasons you may think.

What is it with "telly/video/news people" ?, WHY do they insist on filming & talking whilst driving on public roads. In my opinion, this is blatant "driving without due care" and therefore ILLEGAL - their own "video evidence" should easily be enough for a possible prosecution. How can they pay proper due attention to the road and other road users while they are distracted in following the script and gesturing to camera(s)?. Furthermore,  some of the cameras often block part of the view through the windows, an MOT failure, should they be on the way to one !..

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12 hours ago, mehere said:

These videos and films always raise my 'blood pressure', but maybe not for the reasons you may think.

What is it with "telly/video/news people" ?, WHY do they insist on filming & talking whilst driving on public roads. In my opinion, this is blatant "driving without due care" and therefore ILLEGAL - their own "video evidence" should easily be enough for a possible prosecution. How can they pay proper due attention to the road and other road users while they are distracted in following the script and gesturing to camera(s)?. Furthermore,  some of the cameras often block part of the view through the windows, an MOT failure, should they be on the way to one !..

Blimey.     :huh:

 

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13 hours ago, mehere said:

These videos and films always raise my 'blood pressure', but maybe not for the reasons you may think.

What is it with "telly/video/news people" ?, WHY do they insist on filming & talking whilst driving on public roads. In my opinion, this is blatant "driving without due care" and therefore ILLEGAL - their own "video evidence" should easily be enough for a possible prosecution. How can they pay proper due attention to the road and other road users while they are distracted in following the script and gesturing to camera(s)?. Furthermore,  some of the cameras often block part of the view through the windows, an MOT failure, should they be on the way to one !..

Im afraid I have to agree with you re the filming while driving, US guys on sites like "Bring a trailer" when asked to post driving videos do just that obviously holding the phone up to film.

Stuart.

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On 1/22/2025 at 11:56 AM, stuart said:

Not a good idea as your not matching engine speed to road speed that way, you should always engage and disengage overdrive with your foot down to match the required engine speed, youll find its a seamless change and your overdrive will last much longer.

Stuart.

I do match engine speed when engaging/disengaging the od .  a slight lift of the throttle when engaging , and when disengaging a slight increase in throttle  .  I do clutch if i'm decelerating (as in approaching a t junction ) .  But i take your point regarding od longevity and clutching is probably a good habit i should get into. .   

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42 minutes ago, Trumpy said:

I do match engine speed when engaging/disengaging the od .  a slight lift of the throttle when engaging , and when disengaging a slight increase in throttle  .  I do clutch if i'm decelerating (as in approaching a t junction ) .  But i take your point regarding od longevity and clutching is probably a good habit i should get into. .   

No lift of throttle at all is the correct way to engage or disengage overdrive and definitely no use of clutch, thats whole point of electrical operation is that there is no need for the use of the clutch at all.

Stuart.

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9 minutes ago, stuart said:

No lift of throttle at all is the correct way to engage or disengage overdrive and definitely no use of clutch, thats whole point of electrical operation is that there is no need for the use of the clutch at all.

Stuart.

Sorry Stuart , I miss understood your reply , I thought you were advocating always using the clutch to engage/ disengage the od , but it’s the opposite. 
I guess the main thing is that it’s a smooth change , without any ‘snatching’ 


 

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45 minutes ago, Trumpy said:

Sorry Stuart , I miss understood your reply , I thought you were advocating always using the clutch to engage/ disengage the od , but it’s the opposite. 
I guess the main thing is that it’s a smooth change , without any ‘snatching’ 


 

Exactly my point, Ive seen so many overdrive boxes in pieces especially ones coming back from the US. Usually where theyve been disengaged on a trailing throttle and the subsequent shock through doesnt do them any good at all.

Stuart.

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I agree that no one is going to hurry a gear change in a TR - up or down the 'box, but all gear changes can be achieved smoothly when engine revs are matched to road speed. A nice double de-clutch on the down change will always help - with optional blip on the throttle at the intermediate lift of the clutch if so inclined.

Stuart and I have agreed previously on O/D operation ...always on the throttle - in and out, never out on the over-run

Nick

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On 1/26/2025 at 8:23 AM, TR4ffic said:

I agree that no one is going to hurry a gear change in a TR - up or down the 'box, but all gear changes can be achieved smoothly when engine revs are matched to road speed. A nice double de-clutch on the down change will always help - with optional blip on the throttle at the intermediate lift of the clutch if so inclined.

Stuart and I have agreed previously on O/D operation ...always on the throttle - in and out, never out on the over-run

Nick

One of the finest skills to acquire when driving a TR is to synchronize rpm when shifting in/out of overdrive. In is easily done by lifting off the throttle for an instant; out via throttle blip is trickier and I do miss occasionally but nailing that is the most satisfying part of overdrive use for me. I concede that shifting out that way is when I'm coasting down and usually below 2500 rpm - not under hard engine braking. 

Style can tend to be quirky especially if you've spent 5 decades driving a particular model, e.g. I rarely use the clutch to leave a gear, flicking into neutral upon release of the throttle and depressing the clutch pedal to enter the next one. Who does that?

All in all, I subscribe to Sir Stirling Moss who's claimed to have quipped " Cars are like women. If you are gentle with them they respond. If you are extremely gentle with them they perform. " Works for me ^_^

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16 hours ago, Tom Fremont said:

All in all, I subscribe to Sir Stirling Moss who's claimed to have quipped " Cars are like women. If you are gentle with them they respond. If you are extremely gentle with them they perform. " Works for me ^_^

I can’t imagine any of today’s GP drivers getting away with similar comments. Very non PC, they would be ostracised immediately. 
Dave McD

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The only overdrives I dip the clutch on (and that's only on the way down the box of course) are competition A types with the massive accumulator spring in.

I regularly drive a handful of ex factory rally cars with them fitted  ( a couple of World Cup PI's, and Roy Fidlers 67 RAC championship winning MKI PI).

If you jump in one of them forgetting the violent overdrives fitted, and happen not to dip the clutch on the way down the box it'll rattle your teeth, and blur your vision!

 

 

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13 minutes ago, multipletriumphsinner said:

The only overdrives I dip the clutch on (and that's only on the way down the box of course) are competition A types with the massive accumulator spring in.

I regularly drive a handful of ex factory rally cars with them fitted  ( a couple of World Cup PI's, and Roy Fidlers 67 RAC championship winning MKI PI).

If you jump in one of them forgetting the violent overdrives fitted, and happen not to dip the clutch on the way down the box it'll rattle your teeth, and blur your vision!

 

 

Hi Dave,

I concur ! :)

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