Mark69 Posted January 12, 2015 Report Share Posted January 12, 2015 Looking at the handbrake improves on ebay wondered if they are worth fitting whilst body is off Any thoughts or info appreciated. Regards Mark Quote Link to post Share on other sites
Tom Boyd Posted January 12, 2015 Report Share Posted January 12, 2015 Fitted a couple to a customers car, they work well!! If you modify the pivot point on the handbrake itself too it's very good Tom Quote Link to post Share on other sites
ianhoward Posted January 12, 2015 Report Share Posted January 12, 2015 Mark I have them fitted - they have certainly helped! Cheers Ian Quote Link to post Share on other sites
mike3739 Posted January 12, 2015 Report Share Posted January 12, 2015 Mark Fitted a while ago now well worth it great improvement. Cheers Mike Quote Link to post Share on other sites
Clarkey Posted January 12, 2015 Report Share Posted January 12, 2015 Looks like something else I can't live with out, Quote Link to post Share on other sites
Guest ntc Posted January 12, 2015 Report Share Posted January 12, 2015 (edited) Looks like something else I can't live with out, Have you failed mot on handbrake? I never have :rolleyes:ie look elsewhere Edited January 12, 2015 by ntc Quote Link to post Share on other sites
peejay4A Posted January 12, 2015 Report Share Posted January 12, 2015 I never failed the MoT on the handbrake either but it can hold the car better on hills with the improvers fitted. Quote Link to post Share on other sites
flatlandsman Posted January 13, 2015 Report Share Posted January 13, 2015 In many cases handbrake problems are caused by small indents being created in each of the brake backplates by the pivots on the handbrake levers (which operate within slides in the slave cylinders) IF the slave cylinder isn't lubriacted enough so that it moves when the handbrake is pulled (and thus allows BOTH shoes to expand) then the pivots on said levers -which connect to the end of the cables- will wear small indents in the backplate leading to non movement of the slave cylinders ands thence poor operation of handbrake. When you strip down the rear axles, check the insides of each backplate and if grooves are visible, simply weld these up and linish to achieve a smooth surface before you send the backplates of for powder coating or similar. Alternatively for those who live in the Fens or over in Holland where handbrakes are irrelevant, a simple house brick carried in the boot usually does the trick!! Quote Link to post Share on other sites
jemgee Posted January 13, 2015 Report Share Posted January 13, 2015 Bricks available in blue, red and yellow to match paint colours but tough if its BRG Quote Link to post Share on other sites
Clarkey Posted January 14, 2015 Report Share Posted January 14, 2015 Have you failed mot on handbrake? I never have :rolleyes:ie look elsewhere Nope...... Quote Link to post Share on other sites
astontr6 Posted January 14, 2015 Report Share Posted January 14, 2015 Mark, Looking at where you live, my answer is YES!!! My TR6 has been traveling to the Fishguard area for the last 40 years and some of the hill I could just hold the car on. But when I fitted the type that extend brake cylinder arms I now have no problems. Bruce. Quote Link to post Share on other sites
RogerH Posted January 14, 2015 Report Share Posted January 14, 2015 (edited) There is a difference between passing the MOT and having a handbrake that you are confident will actually work. I think the MOT requires a braking efficiency of 23% or 24%, this will not hold you on a decent hill. The ebay backplate lever extenders will increase leverage by 30% or so. If you move the cable pick-up point on the handbrake lever it self closer to the pivot then you can virtually double the leverage. However this does mean that there is more travel on the handbrake lever it self. very good adjustment is necessary. I have both mod's on my 4A and it works very very well. Roger Edited January 15, 2015 by RogerH Quote Link to post Share on other sites
Wilfried Posted January 14, 2015 Report Share Posted January 14, 2015 Mark Fitted a while ago now well worth it great improvement. Cheers Mike Mike, Please tell me where to find these handbrake improvers you fitted. Wilfried Quote Link to post Share on other sites
Kevo_6 Posted January 14, 2015 Report Share Posted January 14, 2015 Hi Wiflried You can get them from here. http://www.ebay.co.uk/itm/Triumph-Stag-2000-2500-TR4A-TR5-TR6-TR7-hand-brake-improver-/371234373554?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Model%3ATR+6&hash=item566f4affb2 Quote Link to post Share on other sites
Barry911 Posted January 14, 2015 Report Share Posted January 14, 2015 Have you failed mot on handbrake? I never have :rolleyes:ie look elsewhere That's fine, but not everyone has the same strength in their arms as the tester. I can well imagine a situation where someone can drive the car perfectly well, but might appreciate a slightly easier time applying the handbrake, especially if parking on a very steep slope. Frankly I rather liked my 4's long fly-offs, and really much less keen on the 6's. As a driver of a Japanese car, I'm amazed just how much handbrake force it generates for seemingly tiny effort at the lever. Anyway, good idea. Quote Link to post Share on other sites
grumpy2 Posted January 14, 2015 Report Share Posted January 14, 2015 Mine has a fly off handbrake, something I intend to change in the coming months, may well do some of the suggestions above at the same time. Where does the pivot point need moving to to get greater leverage? Thanks Gary Quote Link to post Share on other sites
Mark69 Posted January 15, 2015 Author Report Share Posted January 15, 2015 Thanks for all reply , very helpful my brake system as been completely overhauled but not tested. Altering the pivot point , what's involved ?. Looks like the improvers are a worth while edition. Thanks Mark Quote Link to post Share on other sites
RogerH Posted January 15, 2015 Report Share Posted January 15, 2015 Hi Mark, with the HB lever in your hand you will see where the pivot is (the big hole). The smaller hole is where the (140374) Link attaches. make a new hole between the two - half way doubles the leverage. http://www.moss-europe.co.uk/shop-by-model/triumph/tr2-4a/brake-system/hand-brake/handbrake-tr4a.html Roger Quote Link to post Share on other sites
grumpy2 Posted January 15, 2015 Report Share Posted January 15, 2015 So the aim is to increase the movement of the lever and increase the force it exerts on the cable, hence the rear drums? I'll give it a try. Cheers Quote Link to post Share on other sites
TR NIALL Posted January 15, 2015 Report Share Posted January 15, 2015 Bit like this. Quote Link to post Share on other sites
Mark69 Posted January 15, 2015 Author Report Share Posted January 15, 2015 Can someone please explain how being closer to the fulcrum pin increases force, my thinking is the further away the more force due to longer movement. Feeling a little confused and stupid, most things I can normally get my head round but not this one ,even with Niall's pic. Mark. Quote Link to post Share on other sites
Guest ntc Posted January 15, 2015 Report Share Posted January 15, 2015 My wife and daughter drive the cars as do I, no handbrake mods as I said look elsewhere first.Or go to the gym Quote Link to post Share on other sites
grumpy2 Posted January 15, 2015 Report Share Posted January 15, 2015 Bit like this. Got it, great. Re fulcrum increasing force thing. It's the old turning moments thing, tm = force x distance from fulcrum. So if TM is constant then reducing the distance increases the force. Think about using you pliers to cut through wire rod, the closer the rod is the the fulcrum the more force can be applied. The down side is the other side of the fulcrum has to move further to compensate. Quote Link to post Share on other sites
TR NIALL Posted January 15, 2015 Report Share Posted January 15, 2015 My wife and daughter drive the cars as do I, no handbrake mods as I said look elsewhere first.Or go to the gym Didn't think Modern Woman knew how to use Handbrakes........Smiling for the Ladies. Quote Link to post Share on other sites
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