Britishbest Posted March 23, 2017 Report Share Posted March 23, 2017 Hey Guys, Do these look toast to you? Unsure about the pitting. Parts bill is rising fast but want it to be safe. Quote Link to post Share on other sites
peejay4A Posted March 23, 2017 Report Share Posted March 23, 2017 Shot. Sorry. Quote Link to post Share on other sites
stuart Posted March 23, 2017 Report Share Posted March 23, 2017 Definitely had it Im afraid. Stuart. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted March 23, 2017 Report Share Posted March 23, 2017 as they say in the trade 'cattle trucked' Peter W Quote Link to post Share on other sites
peejay4A Posted March 23, 2017 Report Share Posted March 23, 2017 Just to flesh it out a bit, apart from the pitting the threads are pointy and they shouldn't be. Quote Link to post Share on other sites
RogerH Posted March 23, 2017 Report Share Posted March 23, 2017 Each corrosion pit on the plain shank of the VL is a stress raiser and could cause it to snap off. They should be bright, clean metal Roger Quote Link to post Share on other sites
Britishbest Posted March 23, 2017 Author Report Share Posted March 23, 2017 Thought so, wasnt sure about the fulcrum, expect the nearside will be the same. Arse, that's another £370 gone. Best I found it though. Thanks guys. Quote Link to post Share on other sites
david ferry Posted March 23, 2017 Report Share Posted March 23, 2017 I may be able to help you with some good condition original used parts. David Quote Link to post Share on other sites
rcreweread Posted March 23, 2017 Report Share Posted March 23, 2017 Hi all - just posted a further question on this which seems to have disappeared into thin air so here goes again. Whilst I can understand and agree the vertical links are toast, is that the case for these fulcrum pins? Apart from new ones, I don't recall ever seeing used fulcrum pins which don't show some corrosion, and I cant see how this matters given that only rubber/poly bushes fit over the "bearing" surface and they are not supposed to rotate, rather twist under compression. In many respects, some "grip" on the surface could arguably be beneficial? Happy to be corrected. Cheers Rich Quote Link to post Share on other sites
RogerH Posted March 24, 2017 Report Share Posted March 24, 2017 Hi Rich, are you referring to the fore/aft pin in #95. The rubber bushes will absorb some of the shock loads on the pins but at what point will it give in. New pins are available (apprx £15 each) but require a decent big press to stick them in. If the pin breaks then the wheel will collapse. Roger Quote Link to post Share on other sites
Lebro Posted March 24, 2017 Report Share Posted March 24, 2017 (edited) Hi Rich, are you referring to the fore/aft pin in #95. The rubber bushes will absorb some of the shock loads on the pins but at what point will it give in. New pins are available (apprx £15 each) but require a decent big press to stick them in. If the pin breaks then the wheel will collapse. Roger #95 ? Surely the upper fulcrum is in one piece ? Bob. Edited March 24, 2017 by Lebro Quote Link to post Share on other sites
Britishbest Posted March 24, 2017 Author Report Share Posted March 24, 2017 Sent you a pm David thanks. Quote Link to post Share on other sites
RogerH Posted March 24, 2017 Report Share Posted March 24, 2017 (edited) Hi Bob, indeed. #1 fulcrum pin is one steel lump and it does/can go rusty. However as the thread was about the trunnion area I thought Rich was talking about item #95 and the steel pin that goes through it. This goes very rusty and wears considerably. Compared to the TR4A steel bolt that goes through, the TR4 pin is quite puney. Roger Edited March 24, 2017 by RogerH Quote Link to post Share on other sites
rcreweread Posted March 24, 2017 Report Share Posted March 24, 2017 Sorry Roger for not making it clear but I was talking about the upper wishbone fulcrum pin (pt no 200659 ) which mounts which mounts on the top of the turret - are we agreed that a bit of corrosion on these bush mounting surfaces is OK? Incidentally these are £30+ from the normal sources I also agree that you can't be too careful with the bottom trunnion bolt which nearly always does corrode and wear! Cheers Rich Quote Link to post Share on other sites
RogerH Posted March 24, 2017 Report Share Posted March 24, 2017 Hi Rich, the upper fulcrum has less of a load on it than other areas so I would have thought a small amount of corrosion would not be a big issue. Roger Quote Link to post Share on other sites
Lebro Posted March 24, 2017 Report Share Posted March 24, 2017 Do try to keep up Roger :P Bob. Quote Link to post Share on other sites
RogerH Posted March 24, 2017 Report Share Posted March 24, 2017 Quote Link to post Share on other sites
Britishbest Posted March 24, 2017 Author Report Share Posted March 24, 2017 I think we're saying the fulcrum pins are ok... The VL I will replace. Quote Link to post Share on other sites
rcreweread Posted March 24, 2017 Report Share Posted March 24, 2017 That appears to be the general consensus cheers Rich Quote Link to post Share on other sites
Britishbest Posted March 25, 2017 Author Report Share Posted March 25, 2017 Other side, good thread minor pitting......thoughts? Quote Link to post Share on other sites
RogerH Posted March 25, 2017 Report Share Posted March 25, 2017 Hi, as per my post #6 each corrosion pit is a stress raiser and could cause it to break. You may be lucky and it would last many years. But then............ Roger Quote Link to post Share on other sites
Z320 Posted March 26, 2017 Report Share Posted March 26, 2017 (edited) Sorry me for my experience: the poly bushes have to slide as good as possible on the falcrum pin. If wanted I explain, my story, true story, no lies. Ciao Marco Edited March 26, 2017 by Z320 Quote Link to post Share on other sites
Britishbest Posted March 26, 2017 Author Report Share Posted March 26, 2017 Roger thanks I was mindful of your previous post, thought Id check as the pitting was less severe. Marco your experience sounds worrying. Will order 2 new. Quote Link to post Share on other sites
Z320 Posted March 26, 2017 Report Share Posted March 26, 2017 (edited) Hi ?, here comes what happened to my TR4A, true story. The car was bad maintained when I bought it 7 years ago, so I had to change also these rubber bushes. I ordered poly new bushes from a well known british TR sparepart trader and got nameless quality. As I realised later they have been too stiff and to voluminous, difficult to press in the wishbones and on the fulcrum pins, but they sliped / turned with the added silicon grease on the falcrum pins. That worked well or not for one year, until I had to lift the TR for some work on the brakes. I guess the poly bushes alreday sticked stiff on the pins. When the wheels hang fully down the upper wishbones turned down and the poly bushes have been forced to slip in a lower position, stiffed there again - and pushed the car front up when it came back on the ground. They did not move back in the former position. The car look ridiculous long legged, like one of these Hi-Riders. So sad, a total misstake. I always had to drive uphill and fuel consumption ingreased!!! Ups, that´s fake news On recommendation I changed to Superflex, with fair effort to press in the wishbone and on the pins. And inside with a rhombus surface to keep some silicon grease there after they have been pressed on the pins. That works since years and made my TR a beauty again. So I realise: the upper poly bushes have to slip as easy as posible. On the lower bushes you can open the nuts and tighten them when the car is on the wheel. That works not on the upper bushes. You can use your falcrum pins but keep this story in mind, hoping your TR never looks long legged. Ciao Marco Edited March 26, 2017 by Z320 Quote Link to post Share on other sites
Alec Pringle Posted March 26, 2017 Report Share Posted March 26, 2017 The Superpro (and Superflex - same product, different marketing) range works well - I've used Superpro on a whole range of cars, all absolutely spot bollocks on. Good results handling wise too. Every other variety of polybush that I've tried proved to either not fit properly in the first place, or have a working life of notalot before self destructing - in some instances, less than 20% of the Superpro working life. I've never actually had to replace a Superpro bush . . . . . Usual disclaimers ! Cheers Alec Quote Link to post Share on other sites
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