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hooverbj
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VBMWMO #9255
Joined: 04/01/2017
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I just read Matthew Parkhouse's Tech article on cleaning the oil pan before draining oil in the July issue of BMW Owners News. He recommends torqueing the bolts before taking the pan off to identify any stripped bolts. However, he doesn't state the torque amount. Does anyone know offhand what this is? He also suggests that if there is a stripped bolt, its a pretty easy HeliCoil repair. I can't imagine how drilling out the old stud on the underside of the engine would be easy. Any thoughts on this would be appreciated.
Thanks in advance.
Brian Hoover
1966 R50?2
Cedar City, Utah

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
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Snowbum mentions 5-6 ft-lbs

Snowbum mentions 5-6 ft-lbs on this site:

https://bmwmotorcycletech.info/torquevalues.htm

He goes into more detail on refurbing things here:

https://bmwmotorcycletech.info/pangasket.htm

I've never tried using a torque wrench for these bolts...primarily I don't have a torque wrench this accurate in this low range. I have always used a nut-driver with the 10mm socket. I stagger my tightening order and get to a point that feels good and even for each bolt. I then let the next few heat cycles to let me know if I should tighten more...usual they all need another round of tightening. One or more of the bolts are through bolts into the oil cavity...these should get some kind of sealant on them like Hylomar or Permatex Ultra Gray...can't say as I've ever done that...but I'm sure it would help.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

miller6997
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That's puzzling

Clean the pan before draining the oil?

On the /2s I've owned over the last fifty-some years, I have never experienced a leaky oil pan, and I have never torqued the bolts that hold the pan in place. I get them snug and even and occasionally check them. Otherwise, I rarely give them a thought. It's hard to understand how they could get stripped.

Come to think of it, I can remember only two or three times that the pan has been off of my '67: Once when I installed the larger capacity pan and again when the engine was down for slinger-cleaning, etc. Other than that...?

I get a rare drip from the breather tube, but never from the plug or from around the pan. The only noticeable oil loss is from the rear engine seal that weeps a bit onto the shelf at the back of the engine.

Jon

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Jon Miller
'67 R69S
'13 F800GT
Altadena, California

Twocams
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I have a inch lb. beam

I have a inch lb. beam (dial/needle) torque wrench. But not sure I would use even on the pan. I use a 1/4" ratchet with extension. And snug the bolts. When removing those type of pans I remove all the bolts but maybe 4,one in each coroner. Have the oil drained. Loosen those 4 bolts & tap the pan with a rubber hammer or the like. This way the pan wont just drop on the floor making a big damn mess.

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Twocams
69 R69S
92 R100RT
2004 Aprilia Atlantic 500cc single cylinder Scooter

Jim D 5112
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Wiha Tools

Wiha makes a Torque Vario Handle. It is a screwdriver handle that is adjustable from 10-50 in lbs. I takes all sorts of different bits and has an adapter to use hex bits and nut driver ends. I found mine at a church yard sale for $5. I think that other tool manufactures sell them.

hooverbj
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You are right Jon, I meant

You are right Jon, I meant tightening the oil pan bolts before draining oil not cleaning oil pan before draining.

hooverbj
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Kurt, I just read that tech

Kurt,
I just read that tech article https://bmwmotorcycletech.info/pangasket.htm, which suggests that original BMW pan gaskets are superior.
Called Vech, and talked to him personally, he sold me an original BMW gasket, said it was made out of cork and I should use Permatex Ultra Gray on both surfaces, which seems contrary to this article as well.
Thanks for all the time you've already given to me on what I have to imagine is a very tired thread.
Brian Hoover
1966 R50/2

schrader7032
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San Antonio, TX
Joined: 10/27/2006
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I can't say as I've heard

I can't say as I've heard about using a sealant on the flat surfaces of the cork...I suppose it's a "bootstrap" approach to ensuring an oil free pan. The only time I've heard of sealants was the couple of bolts that go thru the engine flange (I think I have that right)...other wise oil just wicks down the bolt threads.

I guess I'm a contrarian...I've always had leaking pans which leave drops on the floor. Guess I'm too lazy to get down there and continue to snug them up.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

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