Technical Transmission Oil Leak

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Technical Transmission Oil Leak

CarolinesDad

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Oct 19, 2007
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Hi, my daughter's Punto 55 Mk1 (1100cc) seems to have a leak from the RH driveshaft oilseal. Haynes doesn't say anything about how to replace them. Can anyone tell me how to do this please? My drive's getting a bit slippy!!

Thanks
 
The seals can be replaced without removing the gearbox. Maybe someone will be along with a guide or a how-to.

One in my car when last year after, i had a garage replace the clutch. They had it back and fixed it, quickly. The seals themselves can be got from motorfactors for around £5-10 each
 
I have seen some posts which indicated that this is not a big job but they didn't give details. Hopefully someone will come up with the goods. Coincidentally the clutch in this car was replaced at the end of last year but it's a bit too long ago to lay it their door.

My thanks to both of you.
 
I've now been told that the cup holding the inboard end of the driveshaft has to be levered off (using as much force as may be necessary!) to access the oil seal. If anyone who has done this has any advice/cautions I would be very pleased to benefit from your experience!!
 
I've now been told that the cup holding the inboard end of the driveshaft has to be levered off (using as much force as may be necessary!) to access the oil seal. If anyone who has done this has any advice/cautions I would be very pleased to benefit from your experience!!

That's correct, here's a little excert from a brief guide I wrote. Drain the box oil first:

Using the mash hammer and chisel wedge it between the diff cup and hit it so it pops out. There's a retaining clip inside which you need to free up and the only way to do it is to pop the cup out:

IMG_3385Small.jpg


You'll now see this:

IMG_3383Small.jpg


Which is the seal you need to replace. On this side you can remove the plate held in by the three bolts you can see then using some tubing 'press' it out in a vice. Alternatively you can tap a screwdriver in down the side then force it out, which is what you have to do on the other side. Be careful not to mark the alloy as it's not very strong, be gentle but forceful enough to get the seal out! :

DSC00112Small.jpg


The two seals ARE different so make sure you have the right one:

IMG_3381Small.jpg


To put it back in you can either press it in with a vice or get the tubing and tap it into place using the mash hammer. Make sure you clean it all up before putting the seal back in and make sure it's all the way in!

DSC00115Small.jpg

DSC00114Small.jpg


Note : You want tubing around 6" long to tap the seals back in, the piece used is just as an example. If you use tubing make sure it's a square cut and there are no sharp edges. The seal in the pic is also ****ed as it's an old one :)

Repeat for the other side. You have no choice but to force a screwdriver in as the plate is not removable and is fixed in place.

Clean the diff cup.
Pop it back in place, making sure it's 'locked' onto the splines.
Using a rubber mallet hit the cup till it goes all the way in, pull it to make sure it's in properly.
Put a healthy amount of CV grease in the cup.
Clean up the CV boot and cup then put the boot over it and cable tie in place.
 
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