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Next: Which 25 HP 2-stroke outboard
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External
Since: Jun 28, 2006
Posts: 53
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(Msg. 1) Posted: Wed Jul 19, 2006 10:55 am
Post subject: Home-made gasket for 2-stroke motor
Archived from groups: uk>rec>boats>motor, others (more info?)
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I am rebuilding a 1988 Evinrude Junior 2hp outboard motor. I have cut
myself a paper gasket to go between the leg and the upper casing. The
gasket needs to be gas-tight for hot exhaust gasses. There are also a
couple of small holes in the gasket for cooling water channels.
The gasket paper I used is 0.6mm thick. My question is: should I smear
anything on the gasket before reasseembly? I have some lithium grease.
I also have some blue silicone gasket compound, and some silicone
grease. Which of these is most suitable, if any?
Thank you.
Al Deveron |
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External
Since: Jul 19, 2006
Posts: 8
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(Msg. 2) Posted: Wed Jul 19, 2006 10:55 am
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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The message <p6dsb2p0m2046r7cf23jr9dkv2m38m9ijc.TakeThisOut@4ax.com>
from Al Deveron <wmth2581.TakeThisOut@aol.com> contains these words:
> Which of these is most suitable, if any?
Personally for things like that I've always preferred Hermetite Red.
It's non-setting so copes with slight thermal movement - and though not
usually suitable for exhaust duty I don't think it'll get hot enough in
an outboard leg to be a problem.
--
Skipweasel
Pay no attention to that man behind the curtain. |
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External
Since: Jun 28, 2006
Posts: 53
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(Msg. 3) Posted: Wed Jul 19, 2006 10:55 am
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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On Wed, 19 Jul 2006 14:51:15 +0100, Guy King <guy.king DeleteThis @zetnet.co.uk>
wrote:
>Personally for things like that I've always preferred Hermetite Red.
>It's non-setting so copes with slight thermal movement - and though not
>usually suitable for exhaust duty I don't think it'll get hot enough in
>an outboard leg to be a problem.
Thanks. It will be nice if I can use something that will enable the
gasket to be reused next time the joint is separated. Do you think
Hermatite Red will allow that? If it's the same red Hermatite that I
used to use in the late 1960s on my motorcycle, I seem to recall it
did used to set pretty hard after a while. Perhaps they changed the
formula at some point.
Al D >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 2
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(Msg. 4) Posted: Wed Jul 19, 2006 11:55 am
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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"Al Deveron" <wmth2581 DeleteThis @aol.com> wrote in message
news:p6dsb2p0m2046r7cf23jr9dkv2m38m9ijc@4ax.com...
>
> I am rebuilding a 1988 Evinrude Junior 2hp outboard motor. I have cut
> myself a paper gasket to go between the leg and the upper casing. The
> gasket needs to be gas-tight for hot exhaust gasses. There are also a
> couple of small holes in the gasket for cooling water channels.
>
> The gasket paper I used is 0.6mm thick. My question is: should I smear
> anything on the gasket before reasseembly? I have some lithium grease.
> I also have some blue silicone gasket compound, and some silicone
> grease. Which of these is most suitable, if any?
I've heard of bathroom silicone being used quite successfully on car
exhausts. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 8
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(Msg. 5) Posted: Wed Jul 19, 2006 11:55 am
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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The message <3kesb2lgsaj0kpeimlv9sjsb5t0n12r7fh DeleteThis @4ax.com>
from Al Deveron <wmth2581 DeleteThis @aol.com> contains these words:
> Thanks. It will be nice if I can use something that will enable the
> gasket to be reused next time the joint is separated. Do you think
> Hermatite Red will allow that?
Generally. It's rather good at allowing things to seperate. In fact,
it's weakness is one of its strengths. It's leakproof but not an
adhesive. Just what you want in a gasket.
--
Skipweasel
Pay no attention to that man behind the curtain. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 3
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(Msg. 6) Posted: Wed Jul 19, 2006 3:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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In article <p6dsb2p0m2046r7cf23jr9dkv2m38m9ijc DeleteThis @4ax.com>,
Al Deveron <wmth2581 DeleteThis @aol.com> wrote:
> I am rebuilding a 1988 Evinrude Junior 2hp outboard motor. I have cut
> myself a paper gasket to go between the leg and the upper casing. The
> gasket needs to be gas-tight for hot exhaust gasses. There are also a
> couple of small holes in the gasket for cooling water channels.
I've never seen an exhaust gasket made of paper. They're usually some form
of metallised material - or copper, etc.
--
*Do paediatricians play miniature golf on Wednesdays?
Dave Plowman dave DeleteThis @davenoise.co.uk London SW
To e-mail, change noise into sound. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 3
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(Msg. 7) Posted: Wed Jul 19, 2006 3:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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In article <e9lei3$jv9$1@news.freedom2surf.net>,
Doki <mrdoki.DeleteThis@gmail.com> wrote:
> I've heard of bathroom silicone being used quite successfully on car
> exhausts.
There is a silicone sealer for exhausts, but I'd assumed it was to a
different spec to the domestic stuff - although of course not all joints
on an exhaust get super hot.
--
*Why don't sheep shrink when it rains?
Dave Plowman dave.DeleteThis@davenoise.co.uk London SW
To e-mail, change noise into sound. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 8
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(Msg. 8) Posted: Wed Jul 19, 2006 3:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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The message <4e48feefb6dave.TakeThisOut@davenoise.co.uk>
from "Dave Plowman (News)" <dave.TakeThisOut@davenoise.co.uk> contains these words:
> I've never seen an exhaust gasket made of paper. They're usually some form
> of metallised material - or copper, etc.
It's quite common in outboard legs - after all the exhaust is quite cool
by the time it gets down there.
--
Skipweasel
Pay no attention to that man behind the curtain. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 1
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(Msg. 9) Posted: Wed Jul 19, 2006 3:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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External
Since: Jul 19, 2006
Posts: 5
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(Msg. 10) Posted: Wed Jul 19, 2006 4:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Al Deveron wrote:
> I am rebuilding a 1988 Evinrude Junior 2hp outboard motor. I have cut
> myself a paper gasket to go between the leg and the upper casing. The
> gasket needs to be gas-tight for hot exhaust gasses. There are also a
> couple of small holes in the gasket for cooling water channels.
>
> The gasket paper I used is 0.6mm thick. My question is: should I smear
> anything on the gasket before reasseembly? I have some lithium grease.
> I also have some blue silicone gasket compound, and some silicone
> grease. Which of these is most suitable, if any?
>
> Thank you.
>
> Al Deveron
The correct thing is a proper gasket compound.
And proper gasket material..both used to be available in DIY car repair
places.. the red stuff used for fixing gas leaks is probably close
enough though.
I am unsure if silicone gasket stuff will take the heat. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 5
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(Msg. 11) Posted: Wed Jul 19, 2006 4:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Al Deveron wrote:
> On Wed, 19 Jul 2006 14:51:15 +0100, Guy King <guy.king.DeleteThis@zetnet.co.uk>
> wrote:
>
>> Personally for things like that I've always preferred Hermetite Red.
>> It's non-setting so copes with slight thermal movement - and though not
>> usually suitable for exhaust duty I don't think it'll get hot enough in
>> an outboard leg to be a problem.
>
> Thanks. It will be nice if I can use something that will enable the
> gasket to be reused next time the joint is separated. Do you think
> Hermatite Red will allow that? If it's the same red Hermatite that I
> used to use in the late 1960s on my motorcycle, I seem to recall it
> did used to set pretty hard after a while. Perhaps they changed the
> formula at some point.
>
Its the same, and its pretty good., I couldn't remember its name. Used
it a lot rebuilding car engines in te 70's.
It DOES come apart eventually. If it needs to. Better than a copper
gasket corroded to a cast iron block anyway..
> Al D
> >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 3
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(Msg. 12) Posted: Wed Jul 19, 2006 5:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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In article <313030303432373944BE8B8A11.RemoveThis@zetnet.co.uk>,
Guy King <guy.king.RemoveThis@zetnet.co.uk> wrote:
> > I've never seen an exhaust gasket made of paper. They're usually some
> > form of metallised material - or copper, etc.
> It's quite common in outboard legs - after all the exhaust is quite cool
> by the time it gets down there.
Ah - ok. Boats are somewhat foreign to me. 
For the OP, my favourite jointing compound is Blue Hylomar. Easy to
remove when required with cellulose thinners.
--
*Many people quit looking for work when they find a job *
Dave Plowman dave.RemoveThis@davenoise.co.uk London SW
To e-mail, change noise into sound. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 1
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(Msg. 13) Posted: Wed Jul 19, 2006 5:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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Regular paper inst really suitable for head gaskets. Can you not source a
proper OEM part? Blue silicon sealant you have is prob best, but if you
hadthe correct part nothing or a very very thin smear of hermitate red
gasket goo.
Kev
"Al Deveron" <wmth2581.TakeThisOut@aol.com> wrote in message
news:p6dsb2p0m2046r7cf23jr9dkv2m38m9ijc@4ax.com...
>
> I am rebuilding a 1988 Evinrude Junior 2hp outboard motor. I have cut
> myself a paper gasket to go between the leg and the upper casing. The
> gasket needs to be gas-tight for hot exhaust gasses. There are also a
> couple of small holes in the gasket for cooling water channels.
>
> The gasket paper I used is 0.6mm thick. My question is: should I smear
> anything on the gasket before reasseembly? I have some lithium grease.
> I also have some blue silicone gasket compound, and some silicone
> grease. Which of these is most suitable, if any?
>
> Thank you.
>
> Al Deveron >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jul 19, 2006
Posts: 8
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(Msg. 14) Posted: Wed Jul 19, 2006 6:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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The message <3Wwvg.45333$OT.8976@newsfe6-win.ntli.net>
from "kevin foote" <kevin.foote.RemoveThis@ntlworld.com> contains these words:
> Regular paper inst really suitable for head gaskets.
True, but this isn't a head gasket. It's half way down the leg.
--
Skipweasel
Pay no attention to that man behind the curtain. >> Stay informed about: Home-made gasket for 2-stroke motor |
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External
Since: Jun 28, 2006
Posts: 53
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(Msg. 15) Posted: Wed Jul 19, 2006 6:55 pm
Post subject: Re: Home-made gasket for 2-stroke motor [Login to view extended thread Info.]
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On Wed, 19 Jul 2006 20:14:36 +0100, The Natural Philosopher <a.RemoveThis@b.c>
wrote:
>Its the same, and its pretty good., I couldn't remember its name. Used
>it a lot rebuilding car engines in te 70's.
>
>It DOES come apart eventually. If it needs to. Better than a copper
>gasket corroded to a cast iron block anyway..
I thought it was the "golden" Hermatite that was formulated to never
go hard. At least that was the case when I was rebuilding British bike
engines in the 1970s. To my amazement, the stuff is still available,
and I bought some today....
Al D >> Stay informed about: Home-made gasket for 2-stroke motor |
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