2001 S80 Won't move in 'drive' but will in 'reverse'

[SlowLane]

Sorry to say but yea it's going to be the forward apply band, was there a bang or a clang at any point? The bands break in the middle where the forward apply solenoid presses the band to engage it.

Yup, you called it. Dropped the pan and found this:

Which led to this:

and this:

Rather than attempt an in-car repair like many others have done, I decided not to subject my body to the contortions that undertaking would impose. I wanted to work on a clean workbench with good lighting. Also taking the opportunity to replace motor mounts, heater hoses and the like while the trans is out.

I have learned a lot about the GM 4T65E transmission along the way. It's taking me a long time because I keep finding items that are worn slightly more than I would like, and oh, my, but aren't GM parts sooooo much less expensive than Volvo parts? Rock Auto has been getting a lot more of my business than FCPEuro or IPD lately.

A tip of the hat here to David Norris at Triple Edge Performance for his patience in answering my unending stream of questions about the 4T65E.

Now a question for the forum. I intended to replace the crankshaft seal, but when pulled the flex plate today, I found that the factory seal is not leaking a drop of oil, and also seems to have a ring of felt material bonded to it that the replacement seal doesn't have.

Has anyone seen this before? I'm loathe to wreck a beautifully-installed factory seal and replace it with one which frankly seemss a bit flimsy by comparison.

Thanks.

[SlowLane]

Now a question for the forum. I intended to replace the crankshaft seal, but when pulled the flex plate today, I found that the factory seal is not leaking a drop of oil, and also seems to have a ring of felt material bonded to it that the replacement seal doesn't have.
Has anyone seen this before? I'm loathe to wreck a beautifully-installed factory seal and replace it with one which frankly seems a bit flimsy by comparison.

Okay. answered my own question. The seal P/N I ordered from FCPEuro was 31480636, which is the Genuine Volvo part they list. But the seal with the felt ring is P/N 9458178. Anybody got a clue why there are two distinctly different main crankshaft seals?

[aussieviking]

Now a question for the forum. I intended to replace the crankshaft seal, but when pulled the flex plate today, I found that the factory seal is not leaking a drop of oil, and also seems to have a ring of felt material bonded to it that the replacement seal doesn't have.
Has anyone seen this before? I'm loathe to wreck a beautifully-installed factory seal and replace it with one which frankly seems a bit flimsy by comparison.

Okay. answered my own question. The seal P/N I ordered from FCPEuro was 31480636, which is the Genuine Volvo part they list. But the seal with the felt ring is P/N 9458178. Anybody got a clue why there are two distinctly different main crankshaft seals?

Sorry for the late reply, no doubt you have decided by now which seal you have wanted to go with. I have never in my life seen a felt seal like that before, maybe it was an original seal and has since been superseded?

In regards to your above post, good on you for having a crack. I took mine out and laid it side facing up by using a reinforced bucket as a base for the trans bellhousing. It was very easy pulling things out / dropping back in.

I too am guilty of the rockauto specials to keep costs down on my 20 year old cruiser

[SlowLane]

Okay. answered my own question. The seal P/N I ordered from FCPEuro was 31480636, which is the Genuine Volvo part they list. But the seal with the felt ring is P/N 9458178. Anybody got a clue why there are two distinctly different main crankshaft seals?

Sorry for the late reply, no doubt you have decided by now which seal you have wanted to go with. I have never in my life seen a felt seal like that before, maybe it was an original seal and has since been superseded?

So it appears that the 31480636 P/N is for the P3 cars, but somehow it's being flagged by vendors as appropriate for P2 and P80 cars. It has the same OD, ID and thickness, but the seal itself is just a rather "floppy" long-lipped labyrinth with no backing spring.

Me, I'm going with the good ole' 9458178.

Couple of photos comparing the two seals:

One has the felt backing, the other not.

Close-up of the inner side shows the spring on the felt-backed seal

In regards to your above post, good on you for having a crack. I took mine out and laid it side facing up by using a reinforced bucket as a base for the trans bellhousing. It was very easy pulling things out / dropping back in.

For assembly I turned it on its side and lag-bolted the bell-housing to the workbench. Perfect height for lowering components into the cavity and also for fitting the channel plate/valve body without having to struggle with the gaskets.

[SlowLane]

Hmm, so got a bit of a puzzle here. I replaced the main seal this evening and torqued all the bolts down to 45 NM for the first stage as per the common guidance.

But for the second stage there is conflicting guidance. The oft-referenced S60/V70 torque specifications that are out there on the web say:
Carrier plate
Stage 1: Torque to 45 Nm
Stage 2: Tighten/rotate 50°

Flywheel
Stage 1: Torque to 45 Nm
Stage 2: Tighten/rotate 65°

But my Haynes 850 manual says the exact opposite:
Manual transaxle
Stage 1: torque to 33 lb. ft.
Stage 2: Angle-tighten 50 degrees

Automatic transaxle
Stage 1: torque to 33 lb. ft.
Stage 2: Angle-tighten 65 degrees

Who to believe? Yes, I know the 850 isn't a P2, but you would think there would be some sort of consistency.