 Engine rebuild sealant survey, What sealant do you recommend? |
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| AE354803 |
 Jun 7 2013, 07:24 PM
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#1
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Member  Group: Members Posts: 232 Joined: 13-August 12 From: Southern California Member No.: 14,801 Region Association: Southern California  |
I've seen both sealants recommended and I'm trying to figure out where the preference is.
So... Which product do you use for case sealing and cylinder to case sealing? Andy |
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| pilothyer |
Jun 8 2013, 12:47 PM
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#2
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Member Group: Members Posts: 838 Joined: 21-May 08 From: N. Alabama Member No.: 9,080 Region Association: South East States |
The Curil K2 can be used to seal the case halves and seal the cylinder to case. I have done this on a few with no problems. On the last few rebuilds I have used Dirko to seal the cylinders to the case. Whichever one you use to seal the cylinders to the case, you need to apply it to the cylinder and both sides of any shims between the cylinder and case.
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| pcar916 |
Jun 8 2013, 01:02 PM
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#3
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None 
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I have no experience with the Curil products, but Dow Corning 730 with the obvious proper surface-prep needed for all of them has never leaked a drop on any of my builds. Before that it was Aviation Permatex and a silk thread (case). Dating myself?
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| injunmort |
Jun 8 2013, 01:04 PM
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#4
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
I have used yamabond grey on case halves for years, halomar blue on everything else.
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| Mark Henry |
Jun 8 2013, 01:17 PM
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#5
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I've used curil (T, K2 and Dirko) and wasn't overly impressed. Dirko is just RTV.
Threebond (Yamabond) is real good stuff, so is locktite 574, locktite teflon on the pushrod seals, but good prep could be the only reason that works, good old black RTV under the cylinders only. |
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| dfelz |
Jun 8 2013, 03:23 PM
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#6
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beach bum Group: Members Posts: 419 Joined: 7-June 12 From: San Diego Member No.: 14,538 Region Association: Southern California
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I used loctite 574 on the case halves, dont have any complaints, but also havent put the engine back in the car and filled with oil, so i cant say whether or not i did a good job sealing it.
I didnt use and sealant on cylinder to case, just have the shims there coated in a film of oil.... hope thats not a problem, didnt know people put sealant there... (IMG:style_emoticons/default/confused24.gif) |
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| DBCooper |
Jun 9 2013, 06:27 AM
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#7
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
QUOTE(pcar916 @ Jun 8 2013, 12:02 PM)  Before that it was Aviation Permatex and a silk thread (case). Dating myself? Ha ha ha, YES! I wonder how many here even know what that means. |
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