ijonsson Posted June 15, 2013 Report Share Posted June 15, 2013 I've got a vibration in the rear of the transmission. It's like an unbalanced wheel, but higher frequency. It doesn't change much in or out of gear. It peaks at 45 +/- 10 mph. It's not wheel bearings (I know that sound) and I can't find any play in UJ:s. There is a play in the differential but that's the "normal" whining I guess. What I find is a play (radial, not the axial) in the drive shaft splines when I got the car on stands. Anyone knows how bad splines manifest itself? The car is a -71 PI with A-type OD. I noticed this increasing vibration during a 800 miles trip last week. By the way I discovered that the car runs fairly well on 95 because where I was there were no 98 available. Quote Link to post Share on other sites
stephen cooper Posted June 15, 2013 Report Share Posted June 15, 2013 (edited) Could it be a prop UJ? Edited June 15, 2013 by stephen cooper Quote Link to post Share on other sites
peejay4A Posted June 15, 2013 Report Share Posted June 15, 2013 (edited) Bad splines often manifest themselves by a sort of clonk when the driveshafts unload. So if you drive over a kerb (a very small one in at TR) or a speed bump then if you hear a clonk when the rear wheels have just gone over the kerb that could be driveshaft splines locking and unlocking as the suspension absorbs the bump. Edited June 15, 2013 by peejay4A Quote Link to post Share on other sites
Peter Cobbold Posted June 15, 2013 Report Share Posted June 15, 2013 Very difficult to diagnose remotely! If both drive shafts show the same radial play then they are unlikely to have worn simultaneously over 800miles. The frequency suggests to me propellor shaft UJ, so I'm with Stephen. If you have an ex-USA engine, especially late model, they have low compression ratios and will run on 95RON. Peter Quote Link to post Share on other sites
ijonsson Posted June 15, 2013 Author Report Share Posted June 15, 2013 Thanks for your suggestions, I've ordered a couple of Volvo UJ:s (some Dutch guy suggested this), only £8 each, so it's worth a try. I tried to run the car on the stands, but couldn't detect the vibration, so I guess the transmission need a bit of load to show the vibration. Other thing, the engine is an original PI, but I retarded the ignition a bit to help it run on 95 RON. Quote Link to post Share on other sites
ijonsson Posted June 28, 2013 Author Report Share Posted June 28, 2013 (edited) This is not what you want to see in the short summer season! http://www.ijonsson.se/triumph/photos/drivlina/IMG_0773.jpg Seems it is not only UJ:s that need updating. In the inner drive shaft flange, one of the cups for the UJ is rotating, not the bearing itself. So now I hope and pray for swift mail delivery of a new flange from UK! I was planning for a longer trip next weekend, but now it seems to be the daily driver this time. Edited June 28, 2013 by ijonsson Quote Link to post Share on other sites
TR6Kris Posted August 15, 2013 Report Share Posted August 15, 2013 HI, Im new to the forum, i just recieved an email from SC parts and noticed they are offering some new drive shafts here http://www.scparts.co.uk/index/lang-2/lkz-195/kat-180,actmenu-180,artikelid-57,functiontpl-cms_artikelanzeige.tpl,lang=2.htm has nayone heard anything about these? Im tempted to go for a pair after all the horror stories i have read about the drive shafts but want some mor opinions before i plough £1000 into the job. Quote Link to post Share on other sites
RogerH Posted August 15, 2013 Report Share Posted August 15, 2013 The SC drive shaft certainly looks smart, but what a price New drive shafts from Proptech Services in Kidderminster will last you 5 - 10 years at apprx £200+/pair. Roger Quote Link to post Share on other sites
ijonsson Posted August 15, 2013 Author Report Share Posted August 15, 2013 The SC drive shaft certainly looks smart, but what a price New drive shafts from Proptech Services in Kidderminster will last you 5 - 10 years at apprx £200+/pair. Roger Hi, will this firm (Proptech ) ship to Sweden? Can't find them on the www If they are £200+/pair it's less than half the price att Rimmer http://www.rimmerbros.co.uk/Item--i-TKC853UR , or is it compared to this http://www.rimmerbros.co.uk/Item--i-TKC853 (half shaft no hub) and at Moss they cost £170 each /Inge Quote Link to post Share on other sites
peejay4A Posted August 15, 2013 Report Share Posted August 15, 2013 Proptech don't have a web presence but this is them and their phone number is +44 1299 251247 Proptech LtdUnit 81 Hartlebury Trading Estate, Hartlebury, Kidderminster, worcestershire, DY10 4JB Quote Link to post Share on other sites
RogerH Posted August 15, 2013 Report Share Posted August 15, 2013 Pete beat me to it http://www.google.co.uk/#bav=on.2,or.r_qf.&fp=6bc29ddc93df5af6&q=proptech+ltd+kidderminster Roger Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.