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Valy |
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#1
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California ![]() |
What is the recommended case sealer?
I've seen several options with a wide price variation but which one should I use? - Gasgacinch - Permatex® Aviation Form-A-Gasket® No. 3 Sealant - other? Thanks. |
wingnut86 |
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#2
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...boola la boo boola boo... ![]() ![]() ![]() Group: Members Posts: 1,053 Joined: 22-April 10 From: South Carolina Member No.: 11,645 Region Association: South East States ![]() |
Permatex aviation #3 has never failed. We used it in the Air Force by the jug...
(IMG:style_emoticons/default/beer.gif) |
stugray |
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#3
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None ![]() |
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reharvey |
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#4
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Senior Member ![]() ![]() ![]() Group: Members Posts: 573 Joined: 16-July 08 From: N. E. Ohio Member No.: 9,308 Region Association: North East States ![]() |
(IMG:style_emoticons/default/agree.gif)
Permatex aviation #3 has never failed. We used it in the Air Force by the jug... (IMG:style_emoticons/default/beer.gif) |
Rav914 |
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#5
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All-weather fan ![]() ![]() ![]() Group: Members Posts: 740 Joined: 15-April 07 From: WA Member No.: 7,669 Region Association: None ![]() |
I've used a German product called Dirko on three engines with zero problems.
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914dave |
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#6
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914 Addict ![]() ![]() ![]() Group: Members Posts: 723 Joined: 19-October 03 From: Willow Grove Pa. Member No.: 1,262 Region Association: North East States ![]() ![]() ![]() |
Loctite 574, Cat.no. 57447. Its made to fill voids but displace where there is metal to metal contact. I've used it on 4 type IV rebuilds and never had a leak. Pelican sells it for around $23 a bottle. Make sure you stone the matiing surfaces well.
Dave |
brant |
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#7
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914 Wizard ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 11,944 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains ![]() ![]() ![]() |
Definitely the Loctite
my pro builder (type 4 pro) has 3 different steps and sealants he recommended I followed his directions of "what" "how" and "where" combination of mostly loctite a little bit of gasacinch only on a seal or two and a small dab of actual rtv (red) on the washers of the through case bolts. he has used this formula on about 100 type 4 rebuilds over his career |
vwsamba |
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#8
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Newbie ![]() Group: Members Posts: 46 Joined: 20-November 10 From: Malibu, CA Member No.: 12,407 Region Association: None ![]() |
(IMG:style_emoticons/default/agree.gif) Permatex aviation #3 has never failed. We used it in the Air Force by the jug... (IMG:style_emoticons/default/beer.gif) (IMG:style_emoticons/default/agree.gif) |
jcd914 |
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#9
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,090 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California ![]() |
Loctite 574, Cat.no. 57447. Its made to fill voids but displace where there is metal to metal contact. I've used it on 4 type IV rebuilds and never had a leak. Pelican sells it for around $23 a bottle. Make sure you stone the matiing surfaces well. Dave (IMG:style_emoticons/default/agree.gif) I have been using 574 since about 1982. Used to be hard to find but is readily available now. Jim |
malcolm2 |
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#10
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States ![]() ![]() |
What is the recommended case sealer? I've seen several options with a wide price variation but which one should I use? - Gasgacinch - Permatex® Aviation Form-A-Gasket® No. 3 Sealant - other? Thanks. It does seem like builders are all over the place with what they use. I found some info about aviation 3H. Even in aircraft engines it has a designed life, I think I read 1200 hours...estimate 3 years in a car. I am in this for the long haul, not 3 years. Then stories about Loctite....if you ever have to crack the engine again, you will be sorry you used loctite. Just things I have read. |
malcolm2 |
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#11
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States ![]() ![]() |
Definitely the Loctite my pro builder (type 4 pro) has 3 different steps and sealants he recommended I followed his directions of "what" "how" and "where" combination of mostly loctite a little bit of gasacinch only on a seal or two and a small dab of actual rtv (red) on the washers of the through case bolts. he has used this formula on about 100 type 4 rebuilds over his career Will you share with a bit more detail? The "whats", "wheres" and "hows".... |
Jake Raby |
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#12
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Engine Surgeon ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States ![]() |
Curil K2. Period.
Over 700 engines with my name on them have been assembled with it for case sealant and I have never had a single leak complaint, not once- not ever.. Prior to it I did a ton of research and application of everything from anerobics to RTV sealants and that includes several different aviation products. Nothing has as few compromises as the Curil K2. I used it on my 912E engine in 2002 and 160K hard miles later there were still zero leaks at the parting line, even with the use of synthetic oils and and extended drain intervals. Remember: No case sealant makes up for poor surface preparation or application technique. Nothing touches K2 here at Aircooled Heaven. Old school sealants don't mix well with today's lubricants- what your 40 year Veteran has used for the past 35 years is no longer adequate~ |
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