Re: Monterey Montura Newbie - need help
Heres the pds replacement procedure on a 280 drive/225d. Its from a guy named Rick from another site, he knows these drives well, and has helped me in the past with parts needed.
" the two bearing PDS is easiest to remove from AFT.
Remove seals, remove the two large AFT snap rings.
With a rather large brass drift and good sized hammer, drive the PDS AFT..... it will come out.
If need be, apply heat the flywheel cover in this area.... the heat will expand it some, and most often will release the bearing so that it can slide out freely.
Once out and on the bench, you'll then remove the small C-clip that secures the 6206 bearing to the shaft.
Remove the 6206 bearing, and install the new "open" 6206 onto the PDS at this time.
Replace the small C-clip.
The two large AFT snap rings install at this time.
Now the new "open" 6007 bearing can be driven into place, followed by it's large snap ring.
Clean out the grease cavity.... purge the grease port.... and install the PDS in the reverse order.
DO NOT install seals yet.
You'll want to pre-fill the grease cavity first, until you see grease come through the ball cages.
Do this while spinning the PDS to purge any air.
Now and only now, are the seals installed.
NOTE: Excessive grease pressure can dislodge the FWD seal, so I've been either staking them, or gluing them into position.
If we loose the FWD seal, no future grease will make it's way through the AFT bearing.... the more important bearing!
NOTE:
The fwd seal installs in the conventional direction with the seal "lip" and tension spring facing towards the grease area.
IOW, this oposite side is facing towards the engine.
The aft seal installs in a non-conventional direction with the seal "lip" and tension spring facing towards the transmission area.
IOW, the same side also faces towards the engine making the lip and tension spring face the transmission side.
Reason: the lips hydraulically lock (to a degree) when pressure is against them, so between the two, we want the AFT seal to breach excessive grease pressure..... not the FWD seal.
The AFT seal is NOT intended to be a water seal anyway. If we have water in this area, we have a bigger problem.
Parts:
Industry Standard 6206 and 6007 bearings in the open version in an electric motor grade...... about $14-16 each or so.
Japanese, German or US made................. NO BBQ'd Pork bearings.
The two seals are a 35X62X7mm in TCM or Timken. These are fully rubber encapsulated...... about $6-8 each.
If you need a snap ring, these too are industry standard.... NAPA will have them.
I suggest to people that these are lubed at around the 40 hour mark... or perhaps to not exceed an oil change interval.
Here's two images.
First one shows the position where the bearings/seals are on the PDS and female yoke.
Second one shows what I've been doing to every F/C that leaves my shop. This hose gets fastened somewhere on the engine where it will be visible and easy to get to for greasing.
The OEM grease zirk location sucks.... people forget that it's there!