Tim Duncan Posted May 17, 2019 Report Share Posted May 17, 2019 Hello - 1964 TR4 owner here. We have had the 4 for many years, but we've never had the hand brake (missing when we purchased it). Does anyone have an idea how we can find one to install? Thanks in advance! Quote Link to post Share on other sites
John Morrison Posted May 17, 2019 Report Share Posted May 17, 2019 Try TR bitz, Warrington. or TR Trader Cheadle, Revingtons TR GB, etc. Whenyou say have nothing, if you literally have nothing, I would consider fitting a transmission tunnel handbrake as per TR 4A onwards, easy enough and the way I would go from scratch. Ask if you want details. John. Quote Link to post Share on other sites
RogerH Posted May 17, 2019 Report Share Posted May 17, 2019 6 minutes ago, Tim Duncan said: Hello - 1964 TR4 owner here. We have had the 4 for many years, but we've never had the hand brake (missing when we purchased it). Does anyone have an idea how we can find one to install? Thanks in advance! Hi Tim, welcome to the forum. The TR4A handbrake is more convenient to pull on but the TR4 hand brake applies more pull to the brakes. They often come up on ebay. But why not simply ask on here. Roger Quote Link to post Share on other sites
tim hunt Posted May 18, 2019 Report Share Posted May 18, 2019 Tim, should you go for the much more convenient TR4A handbrake assembly I recommend you re-fit the compensator link 7/16" nearer to the fulcrum, as per accompanying pic. This offsets the loss in leverage/mechanical advantage from the shorter lever. Tim Quote Link to post Share on other sites
RogerH Posted May 18, 2019 Report Share Posted May 18, 2019 +1 Quote Link to post Share on other sites
stuart Posted May 18, 2019 Report Share Posted May 18, 2019 1 hour ago, tim hunt said: Tim, should you go for the much more convenient TR4A handbrake assembly I recommend you re-fit the compensator link 7/16" nearer to the fulcrum, as per accompanying pic. This offsets the loss in leverage/mechanical advantage from the shorter lever. Tim If fitting the centre handbrake to a TR4 that mod doesnt apply as the compensator on the axle makes up for the 4a loss of mechanical advantage with the IRS handbrake. Stuart. Quote Link to post Share on other sites
tim hunt Posted May 18, 2019 Report Share Posted May 18, 2019 Oops, thanks Stuart. Sorry Tim for the bum steer. Tim Quote Link to post Share on other sites
keith1948 Posted May 18, 2019 Report Share Posted May 18, 2019 Interesting observation from Stuart. One of our group has a 4 with a 4A handbrake but seems to need wooden blocks to wedge the car if it is parked on a hill. He has bought the operating lever extenders for the back wheels but not yet fitted them. Moving the pivot point on the 4A handbrake has definitely made a difference to my 4A. TR Bitz or maybe TRGB or London TR shop should be able to supply the parts or ask on the forum as Roger has suggested Keith Quote Link to post Share on other sites
RogerH Posted May 18, 2019 Report Share Posted May 18, 2019 2 hours ago, tim hunt said: Oops, thanks Stuart. Sorry Tim for the bum steer. Tim -1 Quote Link to post Share on other sites
stuart Posted May 18, 2019 Report Share Posted May 18, 2019 2 hours ago, keith1948 said: Interesting observation from Stuart. One of our group has a 4 with a 4A handbrake but seems to need wooden blocks to wedge the car if it is parked on a hill. He has bought the operating lever extenders for the back wheels but not yet fitted them. Moving the pivot point on the 4A handbrake has definitely made a difference to my 4A. TR Bitz or maybe TRGB or London TR shop should be able to supply the parts or ask on the forum as Roger has suggested Keith Then he hasnt got the system right as you should be able to happily skid the back wheels on a 4 with the handbrake even with the centre conversion.. I dont have that mod on my 4a and I still have a good handbrake but then I have 10" Alfins with 3/4" cylinders and the wide linings on the rear. Stuart. Quote Link to post Share on other sites
Dic Doretti Posted May 19, 2019 Report Share Posted May 19, 2019 Hi Stuart Those 10" alfin drums sound tasty, I am looking for a pair for the front of my Swallow Doretti. Where can you get them? The usual suppliers only seem to do 9". Cheers Richard Quote Link to post Share on other sites
stuart Posted May 20, 2019 Report Share Posted May 20, 2019 13 hours ago, Dic Doretti said: Hi Stuart Those 10" alfin drums sound tasty, I am looking for a pair for the front of my Swallow Doretti. Where can you get them? The usual suppliers only seem to do 9". Cheers Richard I inherited them from a previous TR many years ago, they are original ones from very early sixties Im afraid. Ive never seen any more like them. Stuart. Quote Link to post Share on other sites
RogerH Posted May 20, 2019 Report Share Posted May 20, 2019 Hi Richard, is this any help https://www.brakedrum.co.uk/index.php/8/ Roger Quote Link to post Share on other sites
stuart Posted May 20, 2019 Report Share Posted May 20, 2019 4 hours ago, RogerH said: Hi Richard, is this any help https://www.brakedrum.co.uk/index.php/8/ Roger Hmm so my guess of approximately £1k to replace the ones I have wasnt far out! Stuart. Quote Link to post Share on other sites
Dic Doretti Posted May 20, 2019 Report Share Posted May 20, 2019 Thanks Stuart and Roger for you responses. Looks like I may be taking the disc brake route, although I have never had a problem with well adjusted drums but I steer clear of Alpine passes. Cheers Richard Quote Link to post Share on other sites
Bob Smith Posted May 21, 2019 Report Share Posted May 21, 2019 Tim, If you still need a TR4 handbrake I have a spare & have sent you a P.M. (Click the envelope symbol top RH of the screen) Quote Link to post Share on other sites
I used to have one of those! Posted December 15, 2019 Report Share Posted December 15, 2019 Hi Richard I may have what you need. As with all the very rare stuff I have ever owned, they found me by chance. Annoyingly for you know doubt, is that they came with a load of other stuff I bought from a guy in Scotland! They look to be in good condition. To be honest, I didn't understand the significance of them until I looked into them. 9" are readily available new (at £354.00 each!), but 10" don't seem to have been available new or second hand for decades. If Stuart says they are rare, they must be. He would know. Feel free to contact me if interested. I'll ping you an email as well. Regards, Simon Quote Link to post Share on other sites
stuart Posted December 16, 2019 Report Share Posted December 16, 2019 22 hours ago, I used to have one of those! said: Hi Richard I may have what you need. As with all the very rare stuff I have ever owned, they found me by chance. Annoyingly for you know doubt, is that they came with a load of other stuff I bought from a guy in Scotland! They look to be in good condition. To be honest, I didn't understand the significance of them until I looked into them. 9" are readily available new (at £354.00 each!), but 10" don't seem to have been available new or second hand for decades. If Stuart says they are rare, they must be. He would know. Feel free to contact me if interested. I'll ping you an email as well. Regards, Simon Nice one Simon, I hope theyre good circumferentially. Stuart. Quote Link to post Share on other sites
Hamish Posted December 16, 2019 Report Share Posted December 16, 2019 Have I read somewhere that the Datsun 240/260 Z rear drums fitted our TR’s just needed the axle holes releasing. And they come in finned versions. Quote Link to post Share on other sites
Fireman049 Posted December 16, 2019 Report Share Posted December 16, 2019 Hi Hamish ~ Yes, that is correct. The Datsun 240/260 Z drums will fit a TR. Tom. Quote Link to post Share on other sites
Z320 Posted December 16, 2019 Report Share Posted December 16, 2019 I remember a post anywhere (?) about a ring with radial fins to be pressed on the standard brake drum? Sorry me if this note causes any confusion... Quote Link to post Share on other sites
stuart Posted December 16, 2019 Report Share Posted December 16, 2019 1 hour ago, Hamish said: Have I read somewhere that the Datsun 240/260 Z rear drums fitted our TR’s just needed the axle holes releasing. And they come in finned versions. Yes but they also need the stud holes relieving and they arent that good quality. Stuart. Quote Link to post Share on other sites
stuart Posted December 16, 2019 Report Share Posted December 16, 2019 27 minutes ago, Z320 said: I remember a post anywhere (?) about a ring with radial fins to be pressed on the standard brake drum? Sorry me if this note causes any confusion... Yes Racetorations used to do them, I dont think they do now though. Stuart. Quote Link to post Share on other sites
Hamish Posted December 16, 2019 Report Share Posted December 16, 2019 22 minutes ago, stuart said: Yes but they also need the stud holes relieving and they arent that good quality. Stuart. Thanks Stuart. Good to have the full story in one place. H Quote Link to post Share on other sites
Z320 Posted December 16, 2019 Report Share Posted December 16, 2019 found that but there is no need for me, just nice to know Quote Link to post Share on other sites
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