Beagle, posted this thread a while back, some good info here on bearing info..

VACUUM PUMP FAILURE! Are you neglecting yours??


Charlie


sent from my pos computer

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

I am not sure how anyone could easily come up with that info.

If you kew what the original bearing number was you could simply replace it with a bearing of the same number that would be OK.

Except on small bearings the bearing number is usually on the shields. If there is no shields I am nout sure if there would be room for the number to be readable.

I suppose Peirburg would knew what the spec is but would the give up the info and take the time to look it up and answer an Email?

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84 300D, 82 Volvo 244Gl Diesel

I need to corrrect my faulty memory. Below is a pic of My Vacuum Pump shaing the bearings. There is no shielding wahers on it as I had said. And there is a bearing on each side meaning I would need 2 bearings if I replaced them.
Also is the roller in the center of it a nother bearing? If so you need a 3rd bearing.

If I blow the pic up you can see some partial writing on the outer race of the bearing.

Attached Thumbnails

 

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84 300D, 82 Volvo 244Gl Diesel

More balls equals more friction. Bearing shields (sealed and unsealed) are for keeping out contaminates and they also increase heat. Less friction and less heat equals longer life. The vacuum pump is pretty well sealed off from contaminants as is.

Also, if you have ever popped a shield off a bearing before, you probably wouldn’t be counting on that thin piece of metal to contain anything if the bearing is going to fail in operation.

In past discussions, owners considered a metal-shielded bearing better since it might contain the balls in a failure. My 1985 300D was making a clattering noise but my son had to drive it 150 miles home. It was from the vacuum pump. The bearings had failed, so the arm was dragging on the "skateboard ramp" and was worn half thru. Another 150 miles and it likely would have broken off and the parts slid into the timing chain to perhaps destroy the engine, as happened to others. All the balls were gone, but the rest of the bearing remnants were still on the arm. I've recovered some of the balls thru the oil pan drain hole, using a magnet. I recall having the oil pan off later and got a few more w/ magnet from the upper oil pan. The rest are probably there where I recall there are anti-slosh fins to hold them. An electric vacuum pump sounds preferable.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans