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tripicana
Samba Member
Joined: February 13, 2003
Posts: 1164
Location: colorado springs
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 Posted: Mon Sep 01, 2003 5:40 pm Post subject: Sealing the case halves |
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| what would you guys think about using silk thread between the case halves, similar to how they do it on airplanes. one of the guys i work with also uses Permatex 3. airplanes usualy don't drip any oil, but they also don't see the same use. i just wanted a few ideas for when i build my motor next week. thanks |
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1NotchUp
Samba Member
Joined: August 10, 2003
Posts: 147
Location: SW Wa
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| Posted: Mon Sep 01, 2003 5:50 pm Post subject: |
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I have heard about the silk thread trick and talking with folks that had done it, they rave about how dry it stays. Personal I have never tried it, but I think I will have to check it out. The only concern I have is, does it change the gap on the case halves?
Personaly I'm a Permatex 3 man. So far it works well with a occasional sweat.
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'65 NotchBack. Project underway.
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keifernet
Samba Search & Rescue
Joined: May 11, 2002
Posts: 19395
Location: Samba Center for Behavioral Science
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| Posted: Mon Sep 01, 2003 6:00 pm Post subject: |
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Unless the case halves surfaces are damaged, ( i.e. screwdriver blade/pryed apart or corrosion) the case halves/seam usually do not leak.
I have used Permatex Aviaiton or other similar sealing compound on many many engines and if after years/ miles of use if any leaks occurred it was always some other seal/component.
Just be sure to wipe the case surface off with a LINT FREE rag and laquer thinner just before appling the sealing compound.
I have also used the 3M glue and it works great too but makes the case too hard to get back apart. IMO |
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Amskeptic
Samba Member
Joined: October 18, 2002
Posts: 8586
Location: All Across The Country
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| Posted: Thu Sep 04, 2003 8:01 pm Post subject: |
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| 1NotchUp wrote: |
I have heard about the silk thread trick does it change the gap on the case halves?
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It will not affect your bearing clearances/crush values so long as you route it towards the outer edges of the case halves as you approach main bearing #4. At all other points, you are well within the case's ability to conform. I would only use this trick if you have known sealing surface defects. If you are merely paranoid from some prior leaker job, just be careful with the usual procedure.
Personally, I have found Permatex 3H to be annoying and quick drying in all the wrong ways compared to the earlier Permatex 2 which flowed smoother and dried slower.
Colin |
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Eaallred
Samba Member
Joined: May 18, 2003
Posts: 5756
Location: West Valley City, Utah
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| Posted: Thu Sep 04, 2003 8:44 pm Post subject: |
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I'm hooked on Curil T for my engines. Never hardens, and is made by the same company that makes the gasket kits for our VW's.
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Eric Allred
You have to remember something: Everybody pities the weak; Jealousy you have to earn. |
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TimGud
Samba Member
Joined: March 03, 2002
Posts: 6459
Location: Rio Rico Arizona
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| Posted: Fri Sep 05, 2003 11:01 am Post subject: |
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| I have always used permatex 3h with good luck. |
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sixfootdan
Samba Smartass
Joined: February 13, 2002
Posts: 4852
Location: \Lo*ca"tion\, n. 1. The act or process of locating.
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| Posted: Fri Sep 05, 2003 12:36 pm Post subject: |
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I have always liked Gascasinch (spelling?) Comes in a small can w/ a brush attached to the lid. It has a 50's logo on it of a girl. I used to buy it at BAP-Geon.
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57Drag
Samba Member
Joined: July 27, 2003
Posts: 994
Location: Lawtey,Florida
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| Posted: Sat Sep 06, 2003 6:06 pm Post subject: |
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I pretend mine is a racing Harley,clean the surface with etching wheel cleaner,rinse,dry and apply Yammabond sealant(as my dad says"very thin")....Donald...
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tripicana
Samba Member
Joined: February 13, 2003
Posts: 1164
Location: colorado springs
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| Posted: Sun Sep 07, 2003 7:48 pm Post subject: |
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| Thanks guys for the ideas, ill just make sure to take my time doing it. Also, is there anything i can use around the forward oil seal? I'm just looking for potential locations oil will start to leak other than around the pushroods. |
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vdub
Samba Member
Joined: September 07, 2003
Posts: 442
Location: Valley Springs, Ca.
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| Posted: Sun Sep 07, 2003 10:53 pm Post subject: |
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| Berg has an O-Ring mod I have always wanted to try. |
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steel buggin
Samba Member
Joined: March 24, 2003
Posts: 415
Location: Arcadia,Ca
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| Posted: Tue Sep 09, 2003 7:26 pm Post subject: |
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| curil k-2 work the best |
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my65bug
Samba Member
Joined: September 04, 2003
Posts: 66
Location: Danville, Ca
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| Posted: Tue Sep 09, 2003 11:09 pm Post subject: |
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So many to choose from...
Permatex 3
silk thread trick
3M glue
Permatex 2
Curil T
Gascasinch
Yammabond sealant
O-Ring mod
curil k-2
I think that my head is going to explode. |
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vdub
Samba Member
Joined: September 07, 2003
Posts: 442
Location: Valley Springs, Ca.
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| Posted: Tue Sep 09, 2003 11:34 pm Post subject: |
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| My next motor I am going to try the O-Ring mod. |
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57Drag
Samba Member
Joined: July 27, 2003
Posts: 994
Location: Lawtey,Florida
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dubman67
Samba Member
Joined: April 10, 2003
Posts: 299
Location: Big Sky Country
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swoodard23
Samba Member
Joined: November 14, 2004
Posts: 126
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| Posted: Sat May 20, 2006 12:13 pm Post subject: |
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Is there anything I can use that I can pick up at the local Lowes/HomeDepot/Pepboys?
Thanks,
Scott |
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Vayabroder
Samba Member
Joined: April 04, 2006
Posts: 998
Location: Hollywood, FL
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| Posted: Sat May 20, 2006 1:41 pm Post subject: Sealant |
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| I don't think so but you can get an appropriate sealer from CB Performance. I have used Curil K2 in the past and if I recall correctly it was the sealant recommended by the factory. |
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sammyphsyco
Samba Member
Joined: August 07, 2005
Posts: 1093
Location: Terry Cloyd's neighbor
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| Posted: Sat May 20, 2006 2:05 pm Post subject: |
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| HYLOMAR is great . It dosen't dry and gas and oil won't touch it. It was originaly made by rolls royce for their aircraft engines here in socal you can get it at pep boys. |
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1961bluebug
Samba Member
Joined: November 11, 2002
Posts: 1137
Location: Czech Republic, Europe
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| Posted: Mon Sep 15, 2008 7:55 am Post subject: |
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Hylomar Aerograde for me
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|82x94|
1961 Deluxe beetle, 1971 type 181, 1968 T2a Baywindow, 1973 Type 147 "Swiss Fridolin"(sold), 1966 Deluxe sedan (sold), 1983 "Silver Bug" edition (sold), 1961 beetle (sold) |
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bugninva
Samba Member
Joined: December 14, 2004
Posts: 8858
Location: sound it out.
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| Posted: Mon Sep 15, 2008 8:19 am Post subject: |
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| steel buggin wrote: |
| curil k-2 work the best |
I agree....
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| [email protected] wrote: |
| With a show of hands, who has built over 1000 engines in the last 25 years? Anyone? |
GEX has. Just sayin |
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