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Czar of C.R.A.P.
Join Date: Jul 2003
Posts: 2,323
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steel cam tower rings who is right
OK I have done many searches on replaceing the cam tower oil lines and the associated seals for the banjo connectors. I ordered new seals from pelican and the ones they sent are steel rings. All the posts I can find say you must use aluminum rings for a proper seal. Pelican says use the steel ones. The rings that came off were aluminum. Who do I believe. Too much time and money to F***up over a $1.35 seal.
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11-14-2005, 11:31 AM
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Location: Langley,B.C.
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Not to confuse the issue to much, but I have seen copper ones too! I think you should be fine with either.
CHeers
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11-14-2005, 11:35 AM
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Location: Marysville Wa.
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steel?
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11-14-2005, 12:53 PM
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Czar of C.R.A.P.
Join Date: Jul 2003
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Enough said if John say's steel then steel it is.
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66 912 Coupe 84 Carrera Cab Hardtop HC3.4 Hyper Carrera 2005 Dodge Magnum 5.7 HEMI Cabriolet Racing And Performance C.R.A.P. Gruppe #1 Put on some C.R.A.P. and drive.... |
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11-14-2005, 01:13 PM
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GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
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I think he was questioning, not confirming. I've never seen a steel sealing ring. The whole point of using a soft metal is to get some crush upon torque-down.
You sure they're steel?
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11-14-2005, 01:16 PM
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I think the "steel ones" might not be steel also. There certainly is different ones around, some seem to be more maleable that others.
Cheers
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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11-14-2005, 01:33 PM
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Czar of C.R.A.P.
Join Date: Jul 2003
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OK topic back open.. I just saw John's question mark. Yes the ones they sent are steel. Stick to a magent and all. First clue was oxidation on one side of the ring. Now I called Pelican sales and they said that is the ring that is called for. Hence this discussion. The ones that came off were aluminum. I personally think they should be aluminum.
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11-14-2005, 01:34 PM
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GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
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Just go to any import service shop around your hometown, they should have metric aluminum sealing rings in any size you could need. No worries.
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11-14-2005, 01:41 PM
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Czar of C.R.A.P.
Join Date: Jul 2003
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DTW - Ever been to Nebraska....
 Here is a picture of the rings and the label off the bag. They are not even smooth. I am afraid they will mess up the sealing surface of the new hoses if I try to use them.  Label 
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11-14-2005, 01:44 PM
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Location: TX USA
Posts: 9,804
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pn 900.123.005.00 is an aluminum 12 mm ID x 16 mm OD sealing ring ... according to my '72 - '73 parts catalog! I have also seen copper used.
Any industrial bearing & seal store should have or be able to get copper or aluminum sealing rings in metric sizes.
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11-14-2005, 02:08 PM
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Czar of C.R.A.P.
Join Date: Jul 2003
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I have been assured by pelican that the steel rings are the ones and that they will work fine. After the car is running I will try to remember to give a report on the outcome. At present they have been installed but won't know till the car is reassembled and running.
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66 912 Coupe 84 Carrera Cab Hardtop HC3.4 Hyper Carrera 2005 Dodge Magnum 5.7 HEMI Cabriolet Racing And Performance C.R.A.P. Gruppe #1 Put on some C.R.A.P. and drive.... |
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11-14-2005, 03:03 PM
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Just to throw in my 2 cents; these sealing rings are designed as a crush washers; meaning the yield under torque. The cam tower is aluminum and the fitting is steel. If you torque a steel washer down which do you think will give? If you end up with a depression left in your cam tower you may not get a second chance to put aluminum one on later and have it work. That would be a bummer. For over 20 years every engine gasket set I've installed includng the current factory 930 set I'm using have had aluminum, copper, and fiber sealing washers in them. Form your own opinion.
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11-14-2005, 03:32 PM
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Czar of C.R.A.P.
Join Date: Jul 2003
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I still think they should have been aluminum. I am not replacing the ones between the actual aluminum head and the fitting just the ones on either side of the banjo fitting. So at worst I ruin the fitting and the hose. I have been assured by an un named source at Pelican that he has used both the aluminum and the steel on his own car and they both work. I am keeping the aluminum ones that came off and if the steel doesn't work I am going to try and reuse the aluminum ones. They have said that when they order the seals from porsche the steel ones are what they get.
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11-14-2005, 03:38 PM
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never saw any steel ones. go aluminum like the factory did.
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11-14-2005, 04:43 PM
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Over the last 25 years I have sometimes recieved some steel cam oil line sealing rings in 911 engine gasket kits. At times I have had to take sealing rings from my own stock to use on the engine rebuild. I use either aluminum or copper sealing rings, I just don't think the steel ones would compress the ideal amount. If the steel washer was used against the aluminum cam box it might damage the sealing ring seating area.
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Paul Weir |
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11-14-2005, 08:34 PM
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I also recently received the steel from Pelican and found it hard to believe...
What about re-using the old aluminums? Who stocks and supplies the actual aluminum by the Porsche p/n?
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11-16-2005, 12:24 PM
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Never reuse sealing rings long term operation ever if they look good. Unless you were broken down in the middle of the Sahara at high noon in your Rothmans 954 and Klaus forgot the spare sealing rings because he was hung over from Ocktober-Fest then maybe, temporarily (if it was still in good condtion) to save your life but then it would have to be replaced again as soon as the car got back to the shop. And don't use the wide sealing rings only the narrow ones. You can buy some from a Porsche dealer in a pinch.
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Paul Weir |
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11-16-2005, 03:19 PM
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yea...uh huh...thanks...
but, as to the Porsche dealer having the aluminums - doesn't seem likley now does it? Considering those we're getting thru pelican are in Porsche bags and are STEEL.
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1980 911SC - 2nd Rebuild in Process - 2005 Porsche Cayenne Turbo - 2013 VW R ________________________ 2000 BMW X5 - 1996 BMW 530i - Toy 4 Runner (x2 or 3) - 1987 Toy Supra - 1988 Honda Si - 1984 El Camino Super Sport - MGA - MGB - Fiat 124 Spyder - Fiat 128 Wagon - 1962 Karmann Ghia - 1951 VW - 1953 Willys Jeepster w/Chevy 286 - 1995 Volvo 960 - 2006 VW GTI |
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11-16-2005, 03:32 PM
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I think Paul knows what he can get from the dealer.....and has given sound advice. Another vote for aluminum or copper.
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11-16-2005, 04:27 PM
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Irrationally exuberant
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On the subject of sealing rings, I use aluminum ones when they are sealing against aluminum (like the engine drain plug on post '82 911 motors) and copper when sealing against steel (like the oil tank drain plug).
Does this make sense or am I being silly? -Chris
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11-16-2005, 04:36 PM
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The Blue Pheonix
