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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,523
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sealant between cam tower and heads
What do people use for this no-gasket interface? I am thinking blue Hylomar.
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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10-24-2007, 07:22 AM
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Registered
Join Date: Feb 2005
Location: LA
Posts: 1,183
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I use Red Anaerobic Sealant, others use Loctite 474.. basically the same or Threebond 1131 or 1121 cant remember the #.. Pelican sells any of them.
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10-24-2007, 07:46 AM
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Slippery Slopenose Victim
Join Date: May 2006
Location: Central Ohio
Posts: 666
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In Waynes engine rebuilding book ( a good book and value for the money ) loctite 574 is recommended .
I have a question into Loctite Corp about the same question right now . Our shop has been using Loctite 518 sealant for a few years with great results . Both 518 and 574 are medium strength adhesives and are Anaerobic in nature . I sent Wayne a PM and he replied that 574 is what Porsche recommends but felt 518 would also be fine . We ( our shop ) has had problems with Hylomar and is the main reason we went to 518 . You may also want to ask over on the engine rebuilding forum also . SxS
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sxsman@hotmail.com Have guns , will travel Mr. Potato-head , 1974 911 Slant/turbo look 2.7 1963 Cooper S ex-C sedan , 1974 Vespa Rally , 1974 TVR 2500M (sold) ( Musta had massive head trauma in 74 , ya think ? ) |
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10-24-2007, 07:51 AM
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Irrationally exuberant
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I've used Loctite 518 (fills bigger gaps than 574) and ThreeBond 1104 (aka Yamabond) with good results. Loctite 518 is the red anerobic sealant GotaT refers too.
-Chris
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'80 911 Nogaro blue Phoenix! '07 BMW 328i 245K miles! http://members.rennlist.org/messinwith911s/ |
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10-24-2007, 08:28 AM
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resident samsquamch
Join Date: Oct 2005
Location: Cooterville, Cackalacky
Posts: 6,815
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ThreeBond 1104 on mine; what Neil Harvey of Performance Developments uses, in this area. I also used it to seal up my case.
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Last edited by sand_man; 10-24-2007 at 09:42 AM.. |
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10-24-2007, 08:46 AM
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Registered
Join Date: Oct 2006
Location: Paso Robles, CA
Posts: 376
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I just picked up a 3.6l motor with a dripping leak when the motor is tilted on it's side on the engine stand like this. ->
 Is this the location you are talking about? ->  Looks like it's time to go to work on the new engine.
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1981 911sc RoW Coupe (forever under 3.6L conversion) 2003 996TT Basalt black |
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10-24-2007, 08:47 AM
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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
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No, that is not the location.
it is the interface between the heads and the housing where the rocker arms and the cam shaft live. 6 heads and 2 housings, making a total of 6 surfaces to seal.
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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10-24-2007, 08:58 AM
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Registered
Join Date: Oct 2006
Location: Paso Robles, CA
Posts: 376
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Ok I understand where you are talking about now. Sorry to be off topic, but how do I fix my leak?
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1981 911sc RoW Coupe (forever under 3.6L conversion) 2003 996TT Basalt black |
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10-24-2007, 09:10 AM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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574. There's an extensive thread on this in the engine rebuilding forum.
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10-24-2007, 09:38 AM
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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
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Quote:
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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10-24-2007, 09:51 AM
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Now in 993 land ...
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Jerry Woods uses Dow Corning 730. Overall I lean towards his way of sealing engines over Wayne's, but I'd hate to shell out the dough for the DC730 and would go with the Loctite 574. It's worked well on the few rebuilds I helped with. Here a good compilation:
Lubes, sealants and different approaches... George |
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10-24-2007, 09:51 AM
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The Blue Pheonix
