Help needed re drivetrain ..

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Nate
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Help needed re drivetrain ..

Post by Nate » 21 Mar 2012 10:35 pm

If you don't already know, I bought this car :-

http://www.volvo300mania.com/forum-uk/v ... 0&start=15

When advertised, it was stated that the driveshaft>gearbox coupling had given way.

About a week ago, I started the car, depressed the clutch and tried a gear ... Nothing happened, BUT, it did feel clunky, gears not selecting properly etc.

Anyway, today, I have jacked the car up and I spun the rear wheels, expecting the other sides to move in the opposite direction, but they are not, please have a look at this video :-

http://www.youtube.com/watch?v=h-A5SRrl ... e=youtu.be

Now, what I have come to the conclusion is, that the gearbox/diff has gone ?

I visiually checked the coupling, and all is OK, so don't know where Adam got the idea the coupling had broken ?

Your thoughts?

Thanks

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jon-ovlov
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Re: Help needed re drivetrain ..

Post by jon-ovlov » 21 Mar 2012 10:43 pm

Hmm, definitely looks like diff failure. Have you had the back casing off to have a look?

Failing that, just whip the gearbox/diff assembly off. Its all one unit, so isn't too bad to remove.
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Chris_C
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Re: Help needed re drivetrain ..

Post by Chris_C » 22 Mar 2012 09:17 am

It's early in the morning... so forgive anything silly. Only one wheel was moving in that vid? In which case, what happened when you put some resistance on that moving wheel?
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Nate
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Re: Help needed re drivetrain ..

Post by Nate » 22 Mar 2012 10:23 am

Nothing, it would stop. It was only moving as I spun it. I also did the same to the other wheel, and it does exactly the same.

So change the gearbox/diff is the order of the day, which is what I thought.

Attack2001
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Re: Help needed re drivetrain ..

Post by Attack2001 » 22 Mar 2012 06:39 pm

Diffs gone by the looks of it, stripped the teeth off the suns and planets are my guess. Why it was clunky going into gear i have no idea :) Thomas............
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Nate
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Re: Help needed re drivetrain ..

Post by Nate » 22 Mar 2012 11:09 pm

That is my best guess tbh (not knowing the terms for diff parts) but that the diff is shagged, Will open the rear of the casing next week when I get a chance next.

Now need to source a gearbox/diff ...... Are there any other boxes/diffs that will fit apart from a 300 series ?

Attack2001
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Re: Help needed re drivetrain ..

Post by Attack2001 » 23 Mar 2012 12:11 am

Nate wrote:That is my best guess tbh (not knowing the terms for diff parts) but that the diff is shagged, Will open the rear of the casing next week when I get a chance next.

Now need to source a gearbox/diff ...... Are there any other boxes/diffs that will fit apart from a 300 series ?
Short answer, yes, long answer, how much money and time do you have?

Theres no bolt in bolt out swap for the transaxle in the 340/360's best just to replace the diff and be done with it :) Any 5 speed diff off a 340 or 360 will fit :) Thomas..........
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