ian l Posted March 27, 2013 Report Share Posted March 27, 2013 On trying to set the wheel camber on the front of my car, I thought I would check to see if the fulcrum bracket was in the right way round. I have fitted the fulcrum so the center of the bend points out. On looking in the how to restore a, TR book [ the red one ] says it can go either way depending on the age of the car. My question is, is my car an early one? It's a 71 and the vin on is CP5419 Also whats the difference in the early and late cars, is it the chassis or the suspension Ian Quote Link to post Share on other sites
Tony Millward Posted March 27, 2013 Report Share Posted March 27, 2013 Hi Ian, Mines a 71 so maybe this pic will help. Cheers Tony Quote Link to post Share on other sites
RogerH Posted March 27, 2013 Report Share Posted March 27, 2013 (edited) Hi Tony, I see your engine only has three pistons - is this beneficial, what are the pro's & con's? Roger Edited March 27, 2013 by RogerH Quote Link to post Share on other sites
stuart Posted March 27, 2013 Report Share Posted March 27, 2013 On trying to set the wheel camber on the front of my car, I thought I would check to see if the fulcrum bracket was in the right way round. I have fitted the fulcrum so the center of the bend points out. On looking in the how to restore a, TR book [ the red one ] says it can go either way depending on the age of the car. My question is, is my car an early one? It's a 71 and the vin on is CP5419 Also whats the difference in the early and late cars, is it the chassis or the suspension Ian Cobblers! all IRS cars have the curve facing outwards as per Tony`s car (including solid axle 4a`s) all previous cars 2/3/3a/3b/4 have the bracket the other way round to clear the top of the shock absorber. Stuart. Quote Link to post Share on other sites
ian l Posted March 27, 2013 Author Report Share Posted March 27, 2013 Excellent Next question How many shims can you put behind the lower wish bone. I have put 3 and have got a camber angle of over 1.5 degrees positive ian Quote Link to post Share on other sites
stuart Posted March 27, 2013 Report Share Posted March 27, 2013 Are you sure thats positive as the normal starting point is 3 shims, if you need any more then you will start to get short of thread on the lower inner wishbone brackets, also have you settled the suspension correctly before measuring? Stuart. Quote Link to post Share on other sites
ian l Posted March 27, 2013 Author Report Share Posted March 27, 2013 Are you sure thats positive as the normal starting point is 3 shims, if you need any more then you will start to get short of thread on the lower inner wishbone brackets, also have you settled the suspension correctly before measuring? Stuart. Thats why i was asking about the fulcrum. The wheel leans out at the top. Have driven the car about 100 yards before measuring Do you know how many degrees a shim is worth? ian Quote Link to post Share on other sites
stuart Posted March 27, 2013 Report Share Posted March 27, 2013 Depends on the shims as there are two different thickness around. Stuart. Quote Link to post Share on other sites
simonjrwinter Posted March 27, 2013 Report Share Posted March 27, 2013 Hi Tony, I see your engine only has three pistons - is this beneficial, what are the pro's & con's? Roger Brilliant Roger! Quote Link to post Share on other sites
Tom Fremont Posted March 27, 2013 Report Share Posted March 27, 2013 (edited) I had ~ 7 of them on one leg of an A arm until the spring settled a little. Couldn't really get the nyloc fully onto the threads of the lower stud . Finally I managed to strip the threads in the course of a rebushing exercise so bought a replacement from TRF. To my delight it had another ~1/4" of threads making it longer than the one above rather than shorter like original. Nyloc now happy When I bought my 1st '250 in 1976 it had some damage due to being driven by a drunk onto some concrete steps ( it was cheap; $950 ). In the course of its repair by the previous owner the reference fulcrum bracket was reversed, giving the left side dramatic negative camber. The local frame shop " fixed " it by heating up the vertical link and bending it. I drove it that way for ~ 40K miles. Once the engine was rebuilt I bought a new vertical link, rebushed the suspension and brought it to another frame shop with the negative camber duly restored ( some 20 years later ). They were flummoxed until I spied a proper installation in an issue of Classic and Sportscar and informed them. They were contemplating drastic measures too and I saved it at the 11th hour . Edited March 27, 2013 by Tom Fremont Quote Link to post Share on other sites
Peter Cobbold Posted March 27, 2013 Report Share Posted March 27, 2013 Hi Tony, I see your engine only has three pistons - is this beneficial, what are the pro's & con's? Roger Roger, Its beneficial to fuel consumption: http://autos.jdpower.com/content/consumer-interest/gnHI9wQ/engine-cylinder-deactivation-saves-fuel.htm Switch back to 6 when you need the power. Peter Quote Link to post Share on other sites
stuart Posted March 27, 2013 Report Share Posted March 27, 2013 FWIW if you do run out of thread and the nyloc nut isnt fully engaged then Revingtons have the longer stud version of the lower inner brackets. http://blog.revingtontr.com/2013/02/tr4a-tr6-lower-fulcrum-bracket-rtr3287.html However under normal circumstances you shouldnt need them and it is indicative of a problem somewhere else, usually in the chassis. Stuart. Quote Link to post Share on other sites
Peter Cobbold Posted March 27, 2013 Report Share Posted March 27, 2013 Excellent Next question How many shims can you put behind the lower wish bone. I have put 3 and have got a camber angle of over 1.5 degrees positive ian Ian It might be the top wishbone chassis mounting fitted the wrond way round - check carefully against Tony's photo. You can see that the centre line of the pivots is not equidistant between the chassis bolts. Yours might be fitted to put the top wishbone too far outwards making it need more shims to get to vertical or negative camber. However, its a common trick to reverse that bracket to give more negative camber than normal, so on second thoughts - maybe its not that. Peter Quote Link to post Share on other sites
ian l Posted March 27, 2013 Author Report Share Posted March 27, 2013 the fulcrum bracket is the right way round and the chassis is new. The car is booked in for its mot next week and the nice mot man has said we can have the lift for the morning before the mot. So will have a play over the weekend, then check it when its on the lift with the proper tools ian Quote Link to post Share on other sites
stuart Posted March 27, 2013 Report Share Posted March 27, 2013 Dont forget to run the car around every time you have adjusted anything to settle the suspension again. Stuart. Quote Link to post Share on other sites
ian l Posted March 27, 2013 Author Report Share Posted March 27, 2013 Dont forget to run the car around every time you have adjusted anything to settle the suspension again. Stuart. will do thanks for your help ian Quote Link to post Share on other sites
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