spiderpigcity Posted October 13, 2010 Share Posted October 13, 2010 Took my drivE shaft out today , marked both ends up and then when i pulled it out with extreme care the middle seperated (bug*ger) so was a waste of time marking it up at each end. Can anyone tell me a place where i can take it to get it re balanced? And rough price? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 14, 2010 Share Posted October 14, 2010 Reco Prop About 50 quid. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 Reco Prop About 50 quid. cheers chris Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted October 14, 2010 Share Posted October 14, 2010 I was going to say Dave Mac in Coventry as he converted my old MK3 prop to a balanced single piece for about £90, but Reco are nearer to you. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 I was going to say Dave Mac in Coventry as he converted my old MK3 prop to a balanced single piece for about £90, but Reco are nearer to you. just out of interest why do they make it in 2 pieces if it istn suppose to be split? and you cant but it seperate from toyota? Quote Link to comment Share on other sites More sharing options...
edge Posted October 14, 2010 Share Posted October 14, 2010 Did you mark the prop ends with box and diff? If you did surely it would go back how it came back? Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 Did you mark the prop ends with box and diff? If you did surely it would go back how it came back? yes but i didnt mark the middle where it split Quote Link to comment Share on other sites More sharing options...
Andy Blyth Posted October 14, 2010 Share Posted October 14, 2010 just out of interest why do they make it in 2 pieces if it istn suppose to be split? and you cant but it seperate from toyota? To allow for axial movement when the chassis is flexing? Quote Link to comment Share on other sites More sharing options...
edge Posted October 14, 2010 Share Posted October 14, 2010 yes but i didnt mark the middle where it split But if both prop ends are marked and the box and diff are marked surly when you put it all back it will line up. Been a while since i have been under a supra but i cant remember how the middle splits? Quote Link to comment Share on other sites More sharing options...
Andy Blyth Posted October 14, 2010 Share Posted October 14, 2010 But if both prop ends are marked and the box and diff are marked surly when you put it all back it will line up. Been a while since i have been under a supra but i cant remember how the middle splits? The two halves are joined using splines just forward of the centre bearing. There must be about 20 different ways the two halves could fit together if you kept the gearbox end steady and rotated the diff end. I made the mistake of putting a matchmark on the rubber boot that covers the splines. I forgot that the boot rotates quite easily. Doh! I've not noticed any vibrations from the prop after just putting them together without marks. Quote Link to comment Share on other sites More sharing options...
edge Posted October 14, 2010 Share Posted October 14, 2010 The two halves are joined using splines just forward of the centre bearing. There must be about 20 different ways the two halves could fit together if you kept the gearbox end steady and rotated the diff end. I made the mistake of putting a matchmark on the rubber boot that covers the splines. I forgot that the boot rotates quite easily. Doh! I've not noticed any vibrations from the prop after just putting them together without marks. Ah i see now. I thought it was only 4 bolts in the middle Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 Ah i see now. I thought it was only 4 bolts in the middle no bolts in middle, just splined shaft that pulls out and costs you 50 quid in about 2 seconds Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 14, 2010 Share Posted October 14, 2010 But if both prop ends are marked and the box and diff are marked surly when you put it all back it will line up. Been a while since i have been under a supra but i cant remember how the middle splits? Yeah that So, if the props come in 2 parts, could you not buy 1 half of X prob and fit it to the other half of Y prop? Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 Yeah that So, if the props come in 2 parts, could you not buy 1 half of X prob and fit it to the other half of Y prop? yes you can but you would have to have them balance or you will finish up busting your diff and your gearbox and crank bearings. and ultimatley have a shaft come through your car and killing you. i have a prop shaft come off on me a few years back and it dug into he m1 and shot blasted the roof of my car with grit and tarmac. and im not joking, i was lucky it didnt flip my car over. but they can come up through the floor and impale you as well. also if you have a badly balanced prop shaft it makes the whole car vibrate 10 times worse than wheel wobble. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 14, 2010 Share Posted October 14, 2010 Because the RPM is so much higher Dynamic balance ftw. As the Edgester says though, if the props now in 2 pieces, and both ends are marked up independantly you should be able to refit it with no worries. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 Because the RPM is so much higher Dynamic balance ftw. As the Edgester says though, if the props now in 2 pieces, and both ends are marked up independantly you should be able to refit it with no worries. i only marked the props to the flanges not the casings, so i dont see how i can put them back? or maybe i am having a blonde moment Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 14, 2010 Share Posted October 14, 2010 Providing the flanges and casings havent moved it should be simples. If they have then youre right to get it balanced properly Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted October 14, 2010 Author Share Posted October 14, 2010 Providing the flanges and casings havent moved it should be simples. If they have then youre right to get it balanced properly i spun the prop shaft flange on the diff around when i dropped the diff just to make sure both the half shafts turned the same way to make sure it was a torsion diff, not open. so i guess i am fubared! Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 14, 2010 Share Posted October 14, 2010 Yeah best to balance it then mate, unless you want another failure Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 14, 2010 Share Posted October 14, 2010 The reason for split prop shafts are two fold. Angularity of gearbox output fange to diff output flange ( split a big angular cahnge into two smaller ones), and harmonics down the propshaft. There is a correct phasing for Hardy-Spicer joints, it's apparenntly quite simple to re-phase them correctly. Reco-Prop will probably tell you how to do it. They will probably be 180 degrees out of phase. Quote Link to comment Share on other sites More sharing options...
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