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cbr900racer
Samba Member
Joined: April 29, 2005
Posts: 1360
Location: middle tennessee
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 Posted: Fri Dec 29, 2006 9:45 pm Post subject: |
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Yamabond/Hondabond...absolutely will not leak. goes on like elmer's school glue and sticks like a magnet. yes, it's a pita to remove, but well worth it. i tear my dragbike down every winter and other than head gasket, i cant remember the last gasket i bought. my .02
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71 Bay (1776 in process)
94 Sonoma
98 Suburban (bike hauler)
97 Blazer
07 Nitro
94 CBR900RR (runs 5.70s 1/8 mile) |
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perrib
Samba Member
Joined: September 14, 2004
Posts: 3402
Location: Chandler, Az
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| Posted: Mon Jan 08, 2007 8:40 pm Post subject: case sealant |
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| Never use silicone! Use Permatex aviation cement or Curil if the sealing surfaces are warped. Remember Vw used no sealant when they were new. I would use the Curil (used by Porchse) only if the case is questionable as it dries a lot like super glue. Use either spareingly as the excess is squeezed into the oil sump. |
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GeorgeL
Samba Member
Joined: January 16, 2006
Posts: 7346
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| Posted: Tue Jan 09, 2007 12:36 am Post subject: Re: case sealant |
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| perrib wrote: |
| Remember Vw used no sealant when they were new. |
I cannot speak of German production, but my new Mexican VW engines came with a bit of what looks to be Hylomar oozing out of the case seam. Several years with no leaks on those... |
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Raggamuffin
Samba Member
Joined: July 18, 2006
Posts: 789
Location: GA
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| Posted: Sat Feb 17, 2007 4:12 pm Post subject: |
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| I have a friend who suggested "Indian Head" (I think that was it) Ever heard of this stuff? |
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gerg
a.k.a. 6volt65
Joined: April 25, 2003
Posts: 5454
Location: Monroe, LA
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| Posted: Sat Feb 17, 2007 7:26 pm Post subject: |
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Yes - I've never used it for a case though.
Permatex makes a compound called Inian Head.
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Gerg
. . . I got 99 problems and my bus ain't one . . .
'65 Sunroof Beetle
'65 Vert
'60 Singlecab |
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rs-vic
Samba Member
Joined: February 08, 2005
Posts: 21
Location: Arizona
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| Posted: Mon Feb 19, 2007 3:17 pm Post subject: sealer |
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I think it is time to get into the 21st century. Permatex Aviation Form-A-Gasket ruled in the 60s. Then came Gaskacinch. I heard it is no longer available in CA due to VOCs. Then came all the various RTV silicone sealers. I rebuilt a high mileage 1600 single port in a Bus using Permatex High Temp RTV and got 20,000 miles out of it before it started leaking oil. On Porsche 911 aluminum cases and VW Type 4 I have used the Wurth Flachendichtung Orange (same as Loctite 574) with good success until the last one I built last year, the sealer failed! I was so mad I sealed it with RTV and will never use 574 again. I am getting ready to build two 911 engines, one alu case and one mag case and after much research will try the Dirko silicone based sealer from Elring. It apparently is thinner than normal RTVs and takes longer to cure so you don't have that skim-over that the other RTVs have.
I am curious to read if anyone else has had success with Dirko. |
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gerg
a.k.a. 6volt65
Joined: April 25, 2003
Posts: 5454
Location: Monroe, LA
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| Posted: Mon Feb 19, 2007 4:14 pm Post subject: |
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I have never used anything as good as Curil K2.
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Gerg
. . . I got 99 problems and my bus ain't one . . .
'65 Sunroof Beetle
'65 Vert
'60 Singlecab |
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rs-vic
Samba Member
Joined: February 08, 2005
Posts: 21
Location: Arizona
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| Posted: Mon Feb 19, 2007 8:16 pm Post subject: sealant |
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| Curil and Dirko are both manufactured by Elring. Elring also manufactures gaskets, o-rings, seals and complete gasket sets. |
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Jawohl
Got Ice?
Joined: January 05, 2004
Posts: 199
Location: Pit of Despair
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| Posted: Sat Apr 07, 2007 6:36 am Post subject: |
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Loctite 574 This the stuff Porsche used for years, but I have not been able to get it from them for months. Stupid expensive, but seals perfectly. One of our suppliers had to call Loctite in Germany to get me more. Loctite 5900 is great too.
_________________
I have no problem with God.
It's his fan club I can't stand!
Reverend Peytons Big Damn Band.
http://www.bigdamnband.com
http://www.youtube.com/watch?v=9Ra0DsbiNs0
1957 Logo panel "We Sell ICE"
1966 Vert
1967 Westy
1963 Ragtop
1964 Single Cab |
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Mongo63
Samba Member
Joined: February 15, 2007
Posts: 1358
Location: prison city, IL
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| Posted: Mon Apr 16, 2007 10:17 pm Post subject: |
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| Gasgacinch with a piece of 00 silk thread around one parting surface, 90 K on my 2180 and not a drop. And BTW, Gasgacinch can be found at almost any Harley performance shop worth it's salt... just my 02. |
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EMPIImp69
Samba Member
Joined: April 17, 2006
Posts: 3374
Location: Dirty Jersey
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| Posted: Tue May 22, 2007 6:19 am Post subject: |
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Is it possible to seal the case with say Curil K2 or Permatex aviation sealer, after the motor is together? I did a top-end rebuild only  since all the lower end bearings in the motor were good. Motor runs good but leaks a little oil from time to time. Rear main seal was changed along with all other gaskets including push rod tubes, oil cooler, oil pump, sump plate..etc. So if I put this stuff along the seam of the case will it help to stop the leak? thanks
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1963 Ragtop Bug |
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DrvwStevo
Samba Member
Joined: May 01, 2005
Posts: 227
Location: SoCal
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| Posted: Tue May 22, 2007 10:08 pm Post subject: |
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25+ years never a leak......And its easy to find it ANYWHERE In So. Cal (so far) big can 'bout $8
Indian Head is more for all steel head gaskets on other makes. There's also a copper spray crap for steel head gaskets. Works good on those, dunno bout vw cases |
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Rokkett33
Samba Member
Joined: October 09, 2006
Posts: 18
Location: Eugene, OR
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| Posted: Sat Aug 18, 2007 9:58 am Post subject: |
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I know I'm saying the same thing as most of the guys here.. But... Aviation Permatex!!! Here's the trick though!!! Take a Silk String and run one string down above and one below the bolt holes!! Then, Torque the case within 5 minutes and you'll never leak!!!
It's a trick I learned in Aviation Maintenance School and used it on my race engines and never seen a problem!!! |
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JoelH
Samba Member
Joined: October 16, 2003
Posts: 1312
Location: North Dakota
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GeorgeL
Samba Member
Joined: January 16, 2006
Posts: 7346
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| Posted: Mon Sep 03, 2007 12:07 am Post subject: |
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I finally found a good local US source for Hylomar!
It is stocked by, of all places, Harley-Davidson motorcycle dealers.
Part number 99653 - 85, Hylomar Tube 3.0 oz
Ten bucks a tube at Glendale (CA) Harley-Davidson. |
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miniman82
Samba Swamp Donkey
Joined: March 22, 2005
Posts: 9515
Location: Southern Maryland
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| Posted: Mon Sep 03, 2007 11:30 am Post subject: |
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| squirmyman wrote: |
| if you can get your hands on the stuff, Catapillar makes a gasket sealer that is orange and comes in a small metal can that is awesome! Coat both halves with the stuff, let it dry and then bolt the halves together. you'll end up prying it apart the next time you rebuild. Holds up to heat better then anything that I've ever come across. |
Sounds like glue!
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747
| Glenn wrote: |
| satterley_sr wrote: |
I just wanted to bitch but I'm getting no sympathy. |
Welcome to the Samba. |
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littco
Samba Member
Joined: June 03, 2005
Posts: 14
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| Posted: Wed Sep 12, 2007 1:28 pm Post subject: |
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Spoke to an engineer at the airport I fly from and they use WELLSEAL on all their aero engines, and looking at it on the web so do Jaguar and bently. Can be bought from Ebay for about $15 (£ |
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joebug1956
Samba Member
Joined: August 08, 2006
Posts: 362
Location: Richmond VA
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| Posted: Thu Oct 04, 2007 8:23 pm Post subject: |
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| Indian Head is by far the best!!!!!!! I seal ed everything on my 2332 no leaks.... |
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wardvwracer
Samba Member
Joined: July 19, 2002
Posts: 489
Location: De Pere, WI
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| Posted: Sun Oct 21, 2007 5:31 pm Post subject: Silk thread to help seal up the case halves. |
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| Rokkett33 wrote: |
Here's the trick though!!! Take a Silk String and run one string down above and one below the bolt holes!! Then, Torque the case within 5 minutes and you'll never leak!!!
It's a trick I learned in Aviation Maintenance School and used it on my race engines and never seen a problem!!! |
I had a guy suggest this to me as well. He claimed to be an old porsche mechanic. I haven't personally tried this one yet, but plan to in my next build.
The trick, as I understand, is to locate some real 100% silk thread. This guy said they used to do that with all their 911 engines.
Oh, and I've had good luck with permatex. Gasketsynch didn't work real well on one engine I built several years ago, so I haven't used it since.
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David Ward
ACME Berrien Buggy Street/Strip racer build
1963 Single Cab
1969 Beetle Convertible
63 11-Window Kombi Bus
Cornpanzers |
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GeorgeL
Samba Member
Joined: January 16, 2006
Posts: 7346
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| Posted: Tue Oct 23, 2007 11:29 pm Post subject: Re: Silk thread to help seal up the case halves. |
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| wardvwracer wrote: |
Oh, and I've had good luck with permatex. |
Which one? Permatex makes dozens of different sealing substances. |
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