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Old 02-19-2010, 06:56 PM   #1
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Default Can the intake gaskets be reused?

I did a search but didn't come up with the answer.
I took apart the intake on my 99 and was wondering if I can reuse the 3 metal gaskets:
- engine to manifold
- between 2 halfs of manifold
- manifold to throttle body

Knowing Mazda, they're probably cost an arm and a leg
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Old 02-19-2010, 06:59 PM   #2
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they usually come off flattened and warped. I've never had good luck reusing one.
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Old 02-19-2010, 08:17 PM   #3
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It's like $8 at rockauto might as well get a new one
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Old 02-19-2010, 08:28 PM   #4
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I hope they can. I've had mine off and back on half a dozen times.
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Old 02-19-2010, 08:36 PM   #5
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If in doubt use a smear of non hardening gasket sealant.

I got mine from mazda in the UK and it was only £11.

Last edited by Duckie_uk; 02-20-2010 at 05:25 AM.
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Old 02-19-2010, 09:21 PM   #6
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Quote:
Originally Posted by Duckie_uk View Post
If in doubt use a smear or non hardening gasket sealant.

I got mine from mazda in the UK and it was only £11.
just going to say that run a small bead on both sides you should be good to go
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Old 02-21-2010, 11:46 PM   #7
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I sillyconed mine because i had doubts, no problems so far.
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Old 02-22-2010, 12:01 AM   #8
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my 1.6 one definatly couldnt and trust me i tried silicone and all that **** is a 1 use item atleast on a 1.6 i dunno what kind of magic y8's uses on his 1.8 but apparently he has a diff gasket than us so anything is possible for him.
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Old 02-22-2010, 12:22 AM   #9
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Quote:
Originally Posted by Braineack View Post
they usually come off flattened and warped. I've never had good luck reusing one.
Really? I've had the one between the two halves of the manifold off a half-dozen times, never had a problem with it.

--Ian
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Old 02-22-2010, 12:28 AM   #10
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When I took my intake manifold off, the gasket (engine to manifold) was all rusted and chipped. I still reused it and have noticed no problems, although I bet it is probably leaking.

Your best bet is to replace what you can. It is better to do it now instead of realizing later that you probably should have done it. Same theory applies to women
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Old 02-22-2010, 12:53 AM   #11
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Yeah, i usually replace mine. If time isn't an issue, buy a new one. If it does get fubar'd It will be a pain to replace it again if you ask me.
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Old 02-22-2010, 01:05 AM   #12
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Reused mine, its the metal type like 3 layers i believe or something like that.
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Old 02-22-2010, 01:08 AM   #13
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Quote:
Originally Posted by y8s View Post
I hope they can. I've had mine off and back on half a dozen times.
same here
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Old 02-22-2010, 02:12 AM   #14
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+2, I reused my stock one a half dozen times in just a month or two when I was playing hot potato with my head. I think I did eventually end up with a new one though, but it worked fine with the old gasket. Wipe some of the gritty oily mess that might be on it and slap it back on.
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Old 02-22-2010, 11:14 AM   #15
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the later model ones must be coated in something delicious. sure they oil can a little when pulled off, but never so much that they wont go back in easily.
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Old 02-22-2010, 11:19 AM   #16
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I used a new one, just for piece of mind....that and I wanted the old one to use on my spare build head for gasket matching.
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Old 02-24-2010, 02:49 AM   #17
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Instead of using silicone, use copper gasket spray.
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Old 02-24-2010, 02:55 AM   #18
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Manifold to head, replace it. LIM to UIM, reuse it. UIM to TB, replace it.
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Old 02-24-2010, 05:05 AM   #19
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@Frank: you can buy them OEM but cheaper than Mazda at I.L. Motorsport...

I.L. Motorsport - MX-5 Tuning, Zubehör und Ersatzteile

There even is a shop in Nederlands but I couldn't find the damn gasket...

I.L. Motorsport - MX-5 Tuning, Zubehör und Ersatzteile
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Old 02-24-2010, 05:26 AM   #20
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Manifold to head=RTV on my car
2 half's of manifold=old used metal gaskets
TB to manifold= old used gasket too

This is on a 99 head. No leaks thus far.
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