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Location of engine dowel sleeves

Upon the most recent separation of my newly closed up case (grrr...) I had a dowel sleeve fall out.
I don't know where it goes.
I know there are two on the studs on the right case half next to the flywheel, I have both of those still. Is there another one floating around?
It's not the locating roll pin for the fan housing I have that.

some research right now shows there's two types of dowel sleeves, the ones on the studs near the flywheel seal are 901.101.195.00 and then there's 901.101.145.00 which appear to be on the outside of the crankcase. I think it's one of these since the case was only slightly cracked apart when this fell off.

So, anyone know the location of the (apparently) 4 dowel sleeves on the outside of the case?
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Mike Bradshaw

1980 911SC sunroof coupe, silver/black: The Wurster
2006 Mazda3 5 door, M-speed exhaust: The Ricer
Putting the sick back into sycophant!
Old 01-11-2012, 08:27 AM
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KTL KTL is offline
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Is it a small dowel sleeve, like it would fit over an M8 stud? The rear (pulley/fan) end of the case has these dowels in the sides to mount the chain housings.
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Kevin
'79 911SC-based 3.0L 930S/934/965/911R looking thing NASA GTS-3
Enginerded by Red Snail Racing, MotoDelta Motorsports, G2 Performance, Elbowmotions
'87 Carrera- gone 7/25/14 but never forgotten
Old 01-11-2012, 09:51 AM
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Bingo, i think you're right. I don't have the case here in front of me, and not enough pictures saved on my work computer to tell, so I'll check tonight, but I bet that's it.
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Mike Bradshaw

1980 911SC sunroof coupe, silver/black: The Wurster
2006 Mazda3 5 door, M-speed exhaust: The Ricer
Putting the sick back into sycophant!
Old 01-11-2012, 10:19 AM
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If it is not hollow, and is a short and stubby solid bit of rod (albeit hardened steel), it would be the locating pin for the #8 or nose bearing. If not, KTL probably put his keyboard finger on it.

But I've never seen the dowel sleeves over two of the five studs for each of the chain housings come loose, especially as part of splitting the case. Typically you have removed the chain housing before you split the case, so there would be no force acting on this hollow tube as part of case splitting. These just sit there, like the larger ones around the throughbolt/studs by the flywheel.

The #8 locating pin, on the other hand, is not much of a press fit into the case, so I could see that perhaps coming out.

You won't be confused as to which is which when you get home, though. One's much larger, and hollow, than the other.
Old 01-11-2012, 09:26 PM
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It was for one of the chain housing studs.

It might have come off while i was wailing away at the case trying to get it to separate.

Forgetting to remove all (er, any...) of the thru bolts made separation impossible, but it didn't prevent me from beating on the case enough to dislodge the sleeve
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Mike Bradshaw

1980 911SC sunroof coupe, silver/black: The Wurster
2006 Mazda3 5 door, M-speed exhaust: The Ricer
Putting the sick back into sycophant!
Old 01-11-2012, 10:07 PM
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Black rubber mallet marks all over everything?
Old 01-11-2012, 11:01 PM
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Some will cringe at my recommendation, but I had excellent success using my brake pad spreader to separate the case.



Note that I started with the mallet to break things free and then proceeded with the spreader to GENTLY coax the case apart. Studs at the pulley end for the engine mount work good, along with the case opening for the oil sump (place a couple of sockets on the spreader plates) and the case breather/vent cover opening all give you places to GENTLY spread the case apart
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Kevin
'79 911SC-based 3.0L 930S/934/965/911R looking thing NASA GTS-3
Enginerded by Red Snail Racing, MotoDelta Motorsports, G2 Performance, Elbowmotions
'87 Carrera- gone 7/25/14 but never forgotten
Old 01-12-2012, 08:19 AM
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Quote:
Originally Posted by Walt Fricke View Post
Black rubber mallet marks all over everything?
Rubber????









Kidding!
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Mike Bradshaw

1980 911SC sunroof coupe, silver/black: The Wurster
2006 Mazda3 5 door, M-speed exhaust: The Ricer
Putting the sick back into sycophant!
Old 01-12-2012, 10:04 AM
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Old 01-12-2012, 10:04 AM
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