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rrcade Samba Member
Joined: May 29, 2010 Posts: 735 Location: WI 1962 Bug 2276
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Posted: Mon Sep 27, 2021 7:29 pm Post subject: Hylomar?? |
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So is this what was originally used on all vw cases?
I’m about to build a all new stroker
Anyone have tried and true sealants for all the different
Parts that require sealants?
Case,jugs,oil pump, etc _________________ CHEAP - FAST - RELIABLE
You can only pick two of the above. |
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slalombuggy Samba Member
Joined: July 17, 2010 Posts: 9131 Location: Canada
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Posted: Mon Sep 27, 2021 9:38 pm Post subject: Re: Hylomar?? |
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Case halves, I use good old tried and tested Permatex aviation Form-a-gasket, Have never had a leak in 30 years.
Everything else I use Permatex Right Stuff urethane sealant.
If I want my cases to look nice I prep and paint them. |
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Dale M. Samba Member
Joined: April 12, 2006 Posts: 20365 Location: Just a tiny bit west of Yosemite Valley
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Posted: Tue Sep 28, 2021 5:34 am Post subject: Re: Hylomar?? |
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slalombuggy wrote: |
Case halves, I use good old tried and tested Permatex aviation Form-a-gasket, Have never had a leak in 30 years.
Everything else I use Permatex Right Stuff urethane sealant.
If I want my cases to look nice I prep and paint them. |
Ditto... If its good enough for airplane engines it is good enough for ground engines... _________________ “Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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volksworld Samba Member
Joined: November 26, 2011 Posts: 2525 Location: formerly NY currently NC
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Posted: Tue Sep 28, 2021 7:24 am Post subject: Re: Hylomar?? |
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aviation permatex works fine..but can be a pain to remove so i switched to gasgacinch on my race motor which was being rebuilt monthly...and continued to use it on stock engines with no issues...permatex ultra copper used sparingly on base of cylinders...when i could still get genuine VW factory longblocks they used a blue sealant which i assume was hylomar |
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c.ruber Samba Member
Joined: January 23, 2005 Posts: 634 Location: Mid TN
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Posted: Tue Sep 28, 2021 7:29 am Post subject: Re: Hylomar?? |
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Hylomar was designed and produced by Rolls Royce for turbine engines. I have used it so seal aircooled VW engines and then found it in my full flow oil filter. I would not recommend using it. Permatex as stated above is excellent or if you want something easy to clean up you can use Curil-T. Three bond is also a good sealant... It doesn't matter which you use but please use it SPARINGLY! _________________ ...and progress is not intelligently planned... |
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Zundfolge1432 Samba Member
Joined: June 13, 2004 Posts: 12452
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Posted: Tue Sep 28, 2021 8:38 am Post subject: Re: Hylomar?? |
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About 20 different products can and will work. Seems there’s a belief or maybe a trend that says the more expensive or obscure means it works better. One thing you’d never want to use is silicone. This too became a trend back in 70s and 80s.
I gravitate towards a product available anywhere because it’s been around for over 100 years no doubt improved over time, and it’s cheap. It cleans up easy with lacquer thinner or alcohol, this seems to escape some fellows.
I used hylomar working on aircraft engines, it works well. Choose a product you like and follow the directions and you’ll sleep better at night. Father in law told me a story once of his experience as a boy working in the general store they sold 3 different kinds of coffee but in fact it was all the same. The ones that opted for higher price swore it was better than the lower priced choices. It’s human nature I guess. |
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FreeBug Samba Member
Joined: March 12, 2012 Posts: 4278 Location: deepest, darkest Switzerland
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Posted: Tue Sep 28, 2021 9:43 am Post subject: Re: Hylomar?? |
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All I remember was that it was blue and expensive. Curil K2 or loktite would be my choice. |
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txoval Samba Member
Joined: January 23, 2004 Posts: 3540 Location: The Woodlands, TX
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Posted: Tue Sep 28, 2021 10:35 am Post subject: Re: Hylomar?? |
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Aviation sealant comes off easily with Permatex sealer remover…wipes right off |
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jeffrey8164 Samba Member
Joined: January 06, 2018 Posts: 3804 Location: Georgia
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Posted: Tue Sep 28, 2021 10:52 am Post subject: Re: Hylomar?? |
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Isn’t all of this in a sticky somewhere?
Hmm. It appears not.
I remember reading about Yamabond and a whole host of other things including ketchup!
As I recall, the ketchup worked for a while but eventually failed.
I used all Permatex products in my build. 3H Aviation for the halves, 2B for the relief valves, alternator stand, oil pump, and various block offs. For the cylinders, I used Ultra Copper.
Built and commissioned in 2018. So far so good. _________________ Volkswagen!
Turning owners into mechanics since 1938.
“Let he that is without oil throw the first rod”
(Compression 8.7:1) |
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Rome Samba Member
Joined: June 02, 2004 Posts: 9602 Location: Pearl River, NY
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Posted: Wed Sep 29, 2021 4:43 pm Post subject: Re: Hylomar?? |
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Quote: |
the ketchup worked for a while but eventually failed. |
Did somebody in the other sealant thread already mention, that the ketchup did not pass mustard?
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Zundfolge1432 Samba Member
Joined: June 13, 2004 Posts: 12452
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Posted: Wed Sep 29, 2021 4:52 pm Post subject: Re: Hylomar?? |
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We forgot to mention the grease and silk thread. Yes it’s a real thing. |
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evanfrucht Samba Member
Joined: July 24, 2016 Posts: 2180 Location: Laurel Canyon, CA
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Posted: Wed Sep 29, 2021 5:34 pm Post subject: Re: Hylomar?? |
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Rome wrote: |
Quote: |
the ketchup worked for a while but eventually failed. |
Did somebody in the other sealant thread already mention, that the ketchup did not cut the mustard
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Fixed it for ya _________________ 1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder ) |
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Rome Samba Member
Joined: June 02, 2004 Posts: 9602 Location: Pearl River, NY
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Posted: Wed Sep 29, 2021 6:00 pm Post subject: Re: Hylomar?? |
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Lettuce get back to the original topic.
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Dale M. Samba Member
Joined: April 12, 2006 Posts: 20365 Location: Just a tiny bit west of Yosemite Valley
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Posted: Wed Sep 29, 2021 6:17 pm Post subject: Re: Hylomar?? |
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Zundfolge1432 wrote: |
We forgot to mention the grease and silk thread. Yes it’s a real thing. |
Actually it was a sealer and a silk thread.... Saw a thing on a program that was showing assembling Lycoming aircraft engines and that was the technique.... _________________ “Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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modok Samba Member
Joined: October 30, 2009 Posts: 26740 Location: Colorado Springs
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Posted: Wed Sep 29, 2021 8:57 pm Post subject: Re: Hylomar?? |
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slalombuggy wrote: |
Case halves, I use good old tried and tested Permatex aviation Form-a-gasket |
Which one?
#1, #2 or #3, or 300?
I guess it depends how old you are what "permatex" means
Most of us that would be #3 but for some it would be 300
You can make #3 into 300..... just leave the cap loose and wait for it to thicken.
300 can be converted to #3 by adding a few drops of everclear, but, this has not been officially confirmed.
people that grew up on #1 & #2 SHOULD be dead, you know, just basic logic, but they still sell it, so.... somebody must be buying it.
And they came put with a new one too, form-a-gasket #1372, which I am too old to know what it is. No idea at all. But it doesn't even have a silly name, so, maybe it isn't so hot, or they ran out of catchy names.
Permatex makes a copy of Hylomar, #85420 "permashield"
IMO does not seem to adhere to surfaces adequately, or maybe I'm not using it right, or maybe it's just not very good. or both
I'd rather use condiments than import foreign sealants. |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12686 Location: on a bike ride somewhere
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Posted: Thu Sep 30, 2021 5:21 am Post subject: Re: Hylomar?? |
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Sriracha sauce works to seal leaky case bolts mid road-trip.
Same reason the catchup usually works, xanthum gum hardens with heat.
Robbie _________________ Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com |
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Zundfolge1432 Samba Member
Joined: June 13, 2004 Posts: 12452
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Posted: Thu Sep 30, 2021 6:20 am Post subject: Re: Hylomar?? |
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Dale M. wrote: |
Zundfolge1432 wrote: |
We forgot to mention the grease and silk thread. Yes it’s a real thing. |
Actually it was a sealer and a silk thread.... Saw a thing on a program that was showing assembling Lycoming aircraft engines and that was the technique.... |
Many years ago when I attended school to get my Airframe and Power plant license part of the curriculum was rebuilding a Continental O-470 flat six air cooled engine. By the book we used grease and silk thread and it didn’t leak. 😀
I suspect the grease was used because the next group of students would have to completely disassemble and build that engine again. Those poor old engines had been apart too many times to count. I just happen to have the manual in front of me and it makes reference to tite seal compound and thread.
Look at the size of that thrust bearing
Look at paragraph h R/H side about half way down |
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toxicavenger70 Samba Member
Joined: July 28, 2019 Posts: 869 Location: CO
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Posted: Thu Sep 30, 2021 9:47 am Post subject: Re: Hylomar?? |
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Zundfolge1432 wrote: |
Dale M. wrote: |
Zundfolge1432 wrote: |
We forgot to mention the grease and silk thread. Yes it’s a real thing. |
Actually it was a sealer and a silk thread.... Saw a thing on a program that was showing assembling Lycoming aircraft engines and that was the technique.... |
Many years ago when I attended school to get my Airframe and Power plant license part of the curriculum was rebuilding a Continental O-470 flat six air cooled engine. By the book we used grease and silk thread and it didn’t leak. 😀
I suspect the grease was used because the next group of students would have to completely disassemble and build that engine again. Those poor old engines had been apart too many times to count. I just happen to have the manual in front of me and it makes reference to tite seal compound and thread.
Look at the size of that thrust bearing
Look at paragraph h R/H side about half way down |
Funny years ago I used dental floss to do the same on a engine. |
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jimmyhoffa Samba Member
Joined: February 16, 2014 Posts: 1046 Location: St. Louis
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Posted: Thu Sep 30, 2021 10:50 am Post subject: Re: Hylomar?? |
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I use the "#00 silk thread trick", sticking it into my Permatex Aviation on case halves, just as described above with respect to the bolt holes! I hang out with some plane guys and an A&P guy, and they told me to try it on my VW engine since it was so much like the continental pictured above.
JEEZ look at the width of those mains.
The craziest thing is, our cases won't leak even if you don't use it! My car flies often enough that I want to be able to pass my annual if the FAA comes callin' so I still do it. _________________ 1974 Chenowth 2RL #1244 Street Legal
My other car isn't ridiculous. |
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Shane Tuttle Samba Member
Joined: February 02, 2011 Posts: 172 Location: Arlee, Montana
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Posted: Thu Sep 30, 2021 11:25 am Post subject: Re: Hylomar?? |
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That thrust bearing takes on most of the abuse. The loads the propeller induces along with the moment of the plane from that point is massive. Add a constant speed prop and student pilots and you have the Perfect Storm.
We used grease in my school for the very reason given. It's taken apart soooo many times a year. Otherwise, I believe Continental updated their O/H manual to allow Loctite 515 Gasket eliminator. LOVE that stuff. |
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