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Author Topic: Sealant? Loctite?  (Read 11907 times)
Jesse/DVK
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« on: April 02, 2009, 11:29:40 am »

Hi guys,

I'm wondering which sealants and loctites I need to have to build my engine? I thought of loctite 290 for all threads? Torco assambly lube to lube bearings etc, and Curril K2 for sealing the case halves and pistons and heads.

Did I forget anything?

Thanks!
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Der Vollgas Kreuzers
jimi323
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« Reply #1 on: April 02, 2009, 12:07:45 pm »

loctite 573 ?
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Diederick/DVK
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« Reply #2 on: April 02, 2009, 12:41:28 pm »

i'll show you what i have this sunday.
i just need a bit of PTFE loctite and then i've got all i need.
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Diederick
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« Reply #3 on: April 02, 2009, 13:13:42 pm »



not in pic:
+ Loctite 290 green formula (very strong threadlocker)
+ Hylomar Aerograde sealant
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Diederick/DVK
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« Reply #4 on: April 02, 2009, 15:08:36 pm »

that looks like a lot of different tubes.
where do you use all those for Huh

it's the white tube i still need.
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Diederick
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Jim Ratto
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« Reply #5 on: April 02, 2009, 20:39:29 pm »

use this on case halves, oil pump gaskets, cylinder bases, deep sump to case...
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Diederick/DVK
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« Reply #6 on: April 02, 2009, 20:53:05 pm »

i got that one  Smiley
but if one should use that case halves, what's the curil k2 for?

so, no paper gaskets in the spots like oil pump and deep sump-to-case?
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Diederick
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Jim Ratto
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« Reply #7 on: April 02, 2009, 20:55:44 pm »

you can use either. I've had dry motors using either or. The Curil is less expensive, and easier to clean off at a later date.
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Diederick/DVK
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« Reply #8 on: April 02, 2009, 20:57:28 pm »

so, curil at case halves applied with a brush? and the rest with 574?
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Diederick
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jimi323
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« Reply #9 on: April 03, 2009, 09:32:38 am »

hi...what kind of sealant can i use tu seal fuel pump bakelite?  over the apper gasket.... Huh
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181
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« Reply #10 on: April 03, 2009, 09:50:51 am »

Hylomar Aerograde (blue)
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jimi323
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« Reply #11 on: April 03, 2009, 09:56:02 am »

Hylomar Aerograde (blue)

thank u! i hope it exist in Italy (i'll search!)...maybe here i can find easily a loctite product...
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charlie
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« Reply #12 on: April 03, 2009, 11:51:50 am »

Hi .

574 Loctite is very good .
Hylomar for sealing fuel manifold gasket
RTV 106 or 159 between exaust pipe and heads or on turbo .(never use with fuel) .

http://cgi.ebay.com/Silicon-rubber-adhesive-sealant-GE-RTV-106-%5Bred-color%5D_W0QQitemZ200311247908QQcmdZViewItemQQimsxZ20090217?IMSfp=TL090217113003r5160

.
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nicolas
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« Reply #13 on: April 03, 2009, 12:50:56 pm »

i used the 579 as well and i am very happy with the result. clean and dry. like Jim said, maybe a little hard to remove afterwards, but seals perfect on flat surfaces. i glue my gaskets on the valvecovers with this as well and i haven't had problems.

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Sarge
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« Reply #14 on: April 03, 2009, 13:55:51 pm »

Don't forget a can of Gasgacinch.  I like this for valve cover gaskets as it makes doing them the next time around much easier. 
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DKP III
Zach Gomulka
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« Reply #15 on: April 03, 2009, 18:20:57 pm »

I just found out this morning that Permatex bought out Loctite and their products, and dropped the Loctite name. So if you're looking for the Loctite barand, you wont find it!
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Born in the '80s, stuck in the '70s.
stealth67vw
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« Reply #16 on: April 03, 2009, 18:36:42 pm »

I just found out this morning that Permatex bought out Loctite and their products, and dropped the Loctite name. So if you're looking for the Loctite barand, you wont find it!
Permatex bought out Loctite back in 1999. It would be foolish if they just now dropped the Loctite name.
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John Bates
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Zach Gomulka
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« Reply #17 on: April 03, 2009, 18:44:02 pm »

I just found out this morning that Permatex bought out Loctite and their products, and dropped the Loctite name. So if you're looking for the Loctite barand, you wont find it!
Permatex bought out Loctite back in 1999. It would be foolish if they just now dropped the Loctite name.

No kidding? Well, it's true. The parts store I was at this morning had a whole wall of Loctite products, but there was no Loctite name, just Permatex. Packages still look the same.
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Born in the '80s, stuck in the '70s.
j-f
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« Reply #18 on: December 05, 2009, 10:11:22 am »

This is what I have in my tool box, which one is best to close halves cases? I have use the loctite aviation with good result but maybe one is better than the others?

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67worshipper
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« Reply #19 on: December 05, 2009, 11:10:48 am »

if any of you guys get wurth products from germany then theyre grey sealer which is called wurth grey is very good for most applications.
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vw hot rod heaven
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« Reply #20 on: December 06, 2009, 22:05:40 pm »

also Wuerth has a nice blue non hardening engine sealant. When I inspected the tube I found that it is made by Hylomar for them (or under licence):-)
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67worshipper
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« Reply #21 on: December 07, 2009, 00:07:31 am »

also Wuerth has a nice blue non hardening engine sealant. When I inspected the tube I found that it is made by Hylomar for them (or under licence):-)
thats interesting.wurth sell some great products so the hylomar must be pretty darn good.
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vw hot rod heaven
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« Reply #22 on: December 07, 2009, 00:17:30 am »

Hylomar Universal Blue was originally developed in the 1960's by Rolls-Royce Plc to help seal against synthetic lubricants that were used in early jet engines. This original Hylomar product was commonly known as either PL32 L, M or H (Light, Medium or Heavy grade). Some users were also familiar with the older Rolls-Royce internal part number of SQ32. However, per various changes in the Rolls-Royce requirements, the PL32 designation was removed in the mid 1990's and the product was renamed to "Universal Blue". The PL32 designation is now associated with the newer "Aerograde PL32M" or "Aerograde Ultra PL32A" formulations.
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63 ripper
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« Reply #23 on: December 07, 2009, 10:38:52 am »

there is a good article about engine sealing in the hot VWs special "all about performance engines 2". perhaps Speedwell can scan it in ?
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JG54

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Harry/FDK
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« Reply #24 on: December 07, 2009, 18:24:50 pm »

Never again Hylomar. I use Gascacinch, Permatex Aviation sealant (case halves) or grey Curil, and red Curill for top and bottom of cylinders. All these are easy to remove with thinner. PS, the Loctite brand stays as is overhere in Europe.
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Done ? Not Yet.
Jesse/DVK
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« Reply #25 on: December 07, 2009, 22:19:18 pm »

This is what I have in my tool box, which one is best to close halves cases? I have use the loctite aviation with good result but maybe one is better than the others?



I used the 574 loctite and it works great.
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Der Vollgas Kreuzers
flatfire
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« Reply #26 on: December 07, 2009, 23:03:29 pm »

Hylomar may have been a good choice back in the day.

Make your life easy use Dirko S  . Its the best  Smiley
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181
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« Reply #27 on: December 07, 2009, 23:47:43 pm »

I agree that Hylomar is very hard to clean off the parts. It is no hardening so messy. But it seals perfectly even if you use a light smear of it. I had a 40 horse engine rebuilt in mid 80s and sealed with Hylomar, went ofer 100 000 miles without a single drop. So I´m a firm believer.

Also jake Raby considers hylomar as the best sealing product for his engines so it can´t be that bad.
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SlingShot
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« Reply #28 on: December 08, 2009, 08:32:44 am »

and red Curill for top and bottom of cylinders.

You use sealant between the head and cylinder?
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kingsburgphil
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« Reply #29 on: December 09, 2009, 00:04:00 am »

About a zillion Saturns are sealed with this stuff. Seals well and removes without too much effort. Handles gaps up to .015 in.  Loctite 518
works equally....but sets up faster on aluminum and brass, if that's an issue. Personally I used 515 almost daily for 10 yrs. and can't fault
the product. Although after looking at the data from Loctite the 515 is better suited to trannys, and 574 for engine cases. At any rate we
don't have to use aviation permatex 3d (?) anymore. Which we referred to as "dog shit in a tube" some 40 years ago  Cheesy
« Last Edit: December 15, 2009, 07:55:17 am by kingsburgphil » Logged
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