Correct clutch kit (DMF) for V70 I

[Jamesjesse]

Hi all,

anyone knows their way around Volvo clutches, especially the differences in DMF?

I took my clutch apart as it was slipping. Took the time to search and order parts after I had it apart and did not want to rush, to make sure I can check part numbers and check my order once it arrives.

Did not help much, because all part catalogs, even searching by VIN and gearbox no. would list more than 1 possibility. And the original Volvo part numbers stamped on DMF (9176206-B), clutch (9176205-B)and PP (9176204-B) would not come up at all in catalogs nor Google.

Never the less, talking to more parts shop, we always ended up with 2 clutch sets - LUK 600021000 and 600021400. No one knew what the difference is besides the price... I bit the bullet and ordered the first one.

 

Just today after unpacking what came, I am confused and happy at the same time. All seemed fine, measurements align, the inner teeth count on the clutch plate are correct...But on the DMF the center (bore) is different. Left image what I have and right is what arrived.

Whole day googling resulted in:

• There seems to be only 1 DMF always listed aftermarket, there are no choices/differences available - LUK, Sachs...
• I have found on ebay and on a wreckers listings (looking at OEM Volvo used DMF) that up until around 2001/2002 all images show that thing in the middle, which looks like is pressed in, whereas anything above this year, has just a big opening in the center. That thing is not really spinning, so would most likely not be a bearing and when searching for plain bearings or pilot bearings on Volvo S70/V70, does seem to be it at all. So I am ruling this out.
• That thing does have a part no. on it (917401700), but googling resulted only in a whole DMF for a Ford Transit?!
• I was researching as well the LUK kits, if perhaps the DMF would be the difference in the kits and I ordered the wrong one, but after hours of searching I found a website that list the part numbers of the pack content and I was able to narrow it down that the clutch plate it self is different - 600021000 has 20 teeth and 600021400 has 23 teeth. Looking into this, it seems that again up until 2001/2002 models had the 20 spline shaft and higher had 23 splines. Which might be even due to M56 5 Speed and M66 6 Speed difference?! Simply totally f...ed up if catalogs, even upon VIN and Gearbox no. provide you the incorrect kit as a choice. I was lucky to had ordered at least the one with correct clutch plate.

 

Never the less, for me to conclude:

• Anyone knows what is the thing in the middle/its purpose?
• Do I need it or will I be fine mounting the new DMF without it? Maybe is a case of Ford thinking "let´s make more profit and from now on we do not need this part" and so did aftermarket?
• I will need to check the bores, and thinking of trying to press it out and pressing into the new one...not sure this will work though

I have not found any topic on any volvo forum regards something like this. Not sure if I am the only one being too cautious or previously there had been 2 different DMF choices and no one experienced this headache.

 

Thanks for any replies

 

EDIT: maybe is totally ok without it? - on the crankshaft is aligned via a pin and the 10 bolts would center it anyway, clutch plate is installed with a centering alignment tool, so I doubt this serves such purpose. It would not be a bearing for the shaft either, because the clutch plate interferes into that hole and the DMF makes no contact with the shaft. So I can´t even think of what it could do, others than maybe some noise/vibration canceling device.

Edited September 13 by Jamesjesse

[Jamesjesse]

Hi,

 

I had a lot to do and only got to the car today.

Had DMF, clutch and PP installed. Everything seems to fit without any problems. DMF fits the crank apparently without any play.

 

I think it's simply a cost-cutting measure by Ford or just a different build design. I found something about the BMW e39 where the guy has the opposite - the old original BMW DMF just has a big hole, and he says there is now an improved DMF (whatever that means) which has a smaller hole:

 

And if anyone is interested, the inlay cannot be pressed, it is the bearing of the DMF itself, i.e. what holds the two halves together.

I have no idea when I'll put the car together, but I'll let you know if there are any problems or if I notice a difference in comfort/noise/etc.

Edited September 19 by Jamesjesse