TRnorm Posted October 8, 2014 Report Share Posted October 8, 2014 Just bought TR6 motor/wheelbox and parts to fit to my TR4. (Following forum suggestions) Not yet fitted motor but pushing and pulling the rack is accompanied by a quite loud noise and notchy feel. Whilst I doubt that the pull exceed the 6lbs mentioned in the WM, it sound and feels worrying and "not right". There are only the gentlest of bends. I've never done this before so what is the collective opinion? Does it quieter after a time? Any guidance most welcome. Thanks Norman Quote Link to post Share on other sites
RogerH Posted October 8, 2014 Report Share Posted October 8, 2014 Hi Norman, did you check to see if the drive cable went through the wheelboxes OK. Some of the repro wheelboxes allow a bit too much play between the cable and the gear wheel. This may be where your notchiness lays. Roger Quote Link to post Share on other sites
Geko Posted October 8, 2014 Report Share Posted October 8, 2014 did you fit the tubes/guides clamping on either sides of the gear wheel assembly ? Quote Link to post Share on other sites
peejay4A Posted October 8, 2014 Report Share Posted October 8, 2014 They're pretty crude when all's said and done. If it's all greased up nicely and the tubes/wheelboxes are straight and it's within the pull specs then it's probably OK. Quote Link to post Share on other sites
stuart Posted October 8, 2014 Report Share Posted October 8, 2014 Hi Norman, did you check to see if the drive cable went through the wheelboxes OK. Some of the repro wheelboxes allow a bit too much play between the cable and the gear wheel. This may be where your notchiness lays. Roger The suggestion of Rogers about too much clearance is very relevant and if uncorrected can lead to the cogs in the wheel-boxes stripping the tops of their teeth. Stuart. Quote Link to post Share on other sites
TRnorm Posted October 8, 2014 Author Report Share Posted October 8, 2014 Thanks everyone. I feel sure the tubes are properly clamped at their flares by the wheel boxes. There is no decernable clearance between the rack and the cogs. In fact, if I was to suspect anything it would be that perhaps the meshing might be too tight(?) I've also packed the rack with grease (which quietened things a little). It seems as though no one has experienced the noise and roughness then? If that's so then I guess there is nothing for it but to take the damn boxes out again and experiment with the degree of meshing! Or perhaps I'll start by slackening off the Wh'box clamps a little to see what effect that has. Why is nothing straightforward?! Thanks again Norman Quote Link to post Share on other sites
RogerH Posted October 9, 2014 Report Share Posted October 9, 2014 Hi Norm, we have all 'probably' experienced what you are finding but it is a matter of degree - you may be more or less sensitive to the problem than us. However if it does not feel right them look further - it is you that must be happy with the situation. What grease are you using for the drive cable. I have found that using a normal thickness lithium grease can get a bit stiff in cold weather and turn the wipers into 'statics'. Look for a thin low temp grease. At British Airways I would use 'Aeroshell 7' - excellent low temp stuff. How are you accessing all the guides and boxes. In a built car I go in through the speedo & Tacho holes and the remove the glove box. Roger Quote Link to post Share on other sites
TRnorm Posted October 9, 2014 Author Report Share Posted October 9, 2014 Thanks Roger, Not at the garage at the moment but its a general purpose Castrol grease - nothing special(?) I have the speedo and tacho out, the heater ducts and pipes out and the cubby out - so access is not too bad and you do get the hang of it after the first 3 or 4 trial fits! I've discussed it with s-v-c and they seem to think its OK and I'll be at Moss in the next couple of days and pick their brains. But I think the real problem is I'n the only one who really knows how noisy and notchy it is. Other than that, right now I'm in one of those "I'm going to leave it for a couple of days" mood. Norman Quote Link to post Share on other sites
peejay4A Posted October 9, 2014 Report Share Posted October 9, 2014 (edited) It's hard to think back to how mine felt when I first assembled it but I do remember it not feeling particularly smooth in operation. The important thing for me was that there should be no lost motion and no excessive drag on the motor. Since then it's been the length of the M5 in the pouring rain and all the way back from IWE in the pouring rain plus sundry downpours over the last couple of years with no problems on slow speed or slightly less slow speed. In fact the slow speed is quite adequate. It also seems less noisy than when first assembled but that's subjective and it's not audible when the engine is running anyway. Edited October 9, 2014 by peejay4A Quote Link to post Share on other sites
TRnorm Posted October 9, 2014 Author Report Share Posted October 9, 2014 All the more grist to the mill,as they say. Thanks Pete Quote Link to post Share on other sites
AlanT Posted October 9, 2014 Report Share Posted October 9, 2014 I'd go back and do what you should have done first time. Take it all out. Assemble out of the car. Run and tweak as required. Re-fit. This will take a lot less time than doing it with your head upside down. Quote Link to post Share on other sites
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