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So, the latest project I am taking on in the 1993 240 is the replacement of the center carrier bearing on the driveshaft after a pretty catastrophic failure of the rubber bushing. I have the driveshaft assembly out and the parts are on order, but I am having trouble figuring out how the two driveshaft pieces are supposed to separate.
Bentley's says to separate the shafts, but offers no hints on how to do it.
I can see the dust cover, and where the splined end of the rear shaft inserts into the front. Is there some sort of trick to getting the pieces apart? I haven't tried to use too much force yet, but if there's no other way I guess I have no choice. Anyway, if someone's done this before any help would be appreciated.
drew
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formerly non-registered at drew b.
green 1993 240, 164k 'Cream Puff V,' formerly: blue 1988 240 DL 'Cream Puff III'
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Well, I thought I'd follow up on this one. I got the shafts separated at the machine shop today, and when I went to reconnect them for reinstallation it was taking way too much force to put them back together. I looked at it closely and after carefully scraping down each groove with a nail, I found a hard resin-type material between two of the splines. I think that this spline originally went into the flat part of the driveshaft, where there is a gap between splines. After I got this material out, I was able to easily slide the shafts back together.
Looks like some idiot (probably at Crown Volvo in Chapel Hill, NC, don't ever go near there) had taken apart the shafts at some point. Judging by the hammer marks on the u-joint yoke, I believe that they simply beat the hell out of the shafts to get them back together, not realizing they were doing it wrong. Instead of reinstalling them properly, it looks like it was reinstalled 90 degreees off from the factory position. It may have been rebalanced after that, I don't know, but there is no driveline vibration. Thus, my driveshaft looks like the picture that Bentley shows how not to do it, but it has worked fine before so I put it back like that.
Anyway, it's back together after significant swearing. Thanks for all the help.
Drew
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formerly non-registered at drew b.
green 1993 240, 164k 'Cream Puff V,' formerly: blue 1988 240 DL 'Cream Puff III'
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Make sure you mark the drive shaft ends so you can put it back the same way you took it apart. If you don't it will be a source of imbalance,vibration and premature bearing failure.
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Give a look here. Hopefully this little editorial will be helpful
http://home.no.net/ebrox/Tony4.htm
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'75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm
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Tony,
Nice step by step....very helpfull for the future...
Joseph
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Hey art, jorrell, hardknocks,
I have marked the places where the flanges were separated from the rear axle and transmission with touchup paint from a car that we no longer own, so that's taken care of.
What I have been doing is as follows:
Carefully holding the shaft section on the right in Art's second pic in a vise
Banging on the u-joint yoke with a large mallet to try to get it to pull apart.
As of now, it has not budged. I have soaked it in PB blaster and still have gotten nowhere. It sounds like it shouldn't take this much effort. I may try to take it to a machine shop tomorrow or Wednesday (the 240 is the only car I have available for now.) I also notice how the splined end on Art's pic is shiny, in my car it seems to have a slight coating of rust. (great)
Thanks for the help, I see how it's supposed to be but as usual with this car, it isn't going right.
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formerly non-registered at drew b.
green 1993 240, 164k 'Cream Puff V,' formerly: blue 1988 240 DL 'Cream Puff III'
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It should just pull apart. The only resistance should the suction of the Grease on the splines.
Was the Rubber boot in place? Sounds like you got a lot of water down the spines and it's a bit rusted.
If you hit the shaft to drive it on teh other shaft then hit it the other way, are you getting any movement?
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'75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm
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Hey Tony, thanks for the link. I had looked that over before I started.
I think what happened was that the rubber piece retaining the spring finally failed after 15 years. I'll try to get some pictures if anyone's curious, but the spring and washer came out of their hole in the rubber piece and were scraping against the end of the front shaft section.
It started when I came home from school for Christmas break in mid-December. I assumed it was a wheel bearing because the noise seemed to come from the front right wheel area. I changed the wheel bearing with no difference in noise, and was trying to figure out what else could be causing the noise. I had spent some time Sunday trying to figure out if it was maybe a dragging brake pad. After I changed my oil yesterday, I was backing up in the driveway and the noise seemed to be centered between the two front seats, pointing to a driveshaft problem.
When I took a look at it, I saw that the rubber cover had indeed been pushed off the end of the front section of the driveshaft by the spring. The washer was almost completely gone, worn down by the spinning driveshaft. I guess a month of driving (including driving in the rain) had allowed water to get in. I have had no success so far even after taking a BFH to it, so I'm going to take it to a driveshaft shop nearby tomorrow that agreed to take a look at it. The replacement parts won't be in until tomorrow anyway. Hopefully I can get this done before the week is out so I can take the car back to school with me.
Thanks for the help everyone.
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formerly non-registered at drew b.
green 1993 240, 164k 'Cream Puff V,' formerly: blue 1988 240 DL 'Cream Puff III'
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So the Bearing might be OK, it was just the hanging Shaft that caused your noise? The shaft is out now, might as well do it up.
I think I mentioned in that link I sent you.. Mark the very end of the Spline and where it come off the other shaft. marking it at the 'U' joint is too far back...it's very easy to put it back together 1 spline tooth off.
After 280K miles I did my Bearing foro the first time and my Spline was nice and Greasey as it should be. I'm surprised you are having such a rust problem that you can't get them to separate. Good luck at the Shaft place. If they take it to some "backroom" to pop it loose, make sure they mark teh very ends as it separates.
Good Luck
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'75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm
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Hello
make sure if its not marked or the marks are covered with oil to make a mark with something that wont rub right off.
never did a 93 but the older 240 came apart fairly easy.
i also mark every flange as i had one i couldnt get right when put back together.
should just pull apart.
good luck
Mike
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First mark both halves of the shaft with a line so you can slip them back together in the proper orientation, this ensures proper balance.
To get the two halves apart, just pull both halves apart. The two halves fit together with a splined slip joint, no clips, no tricks.
jorrell
Drew, if it gives you any grief, drop me an email, I'm in Raleigh during the week... I'd be happy to help out.
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92 245 250K miles, IPD'd to the hilt, 06 XC70, 00 Eclipse custom Turbo setup...currently taking names and kicking reputations!
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