OP
UTC

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180ss with moded engine
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180ss with moded engine
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UTC quote
Hi everyone, was just wondering, when closing up engine cases, have any of you added "gasket sealer" to the new engine gasket (and other gaskets)? If so, which one (brand) have you used? Is it a good idea to use sealers?
Thanks
Fab
@socalguy avatar
UTC

bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
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bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
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UTC quote
The service manual says "spread seal paste on both surfaces of the gasket".

Everyone has their favorite. I use MotoSeal.
@chandlerman avatar
UTC

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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Lucky
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UTC quote
SoCalGuy wrote:
Everyone has their favorite.
That's putting it mildly.

I use Permaseal aviation-grade gasket sealer. Others swear by hondabond/threebond/yamabond. Others use RTV silicone. Still others insist that if grease was good enough for the OG, it's good enough for you.
@birdsnest avatar
UTC

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@birdsnest avatar
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UTC quote
Hylomar spray.

I am a convert from the days of grease before converting to permetex and then the one true gospel of hylomar (and the angels did sing).

Find said religion here:
https://shorturl.at/31FXd
@sdjohn avatar
UTC

Johnny Two Tone
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
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Johnny Two Tone
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UTC quote
External inline image provided by member with no explanatory text

always
@mor avatar
UTC

Hooked
1974 v90, 1959 Allstate, 1979 p200
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Hooked
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1974 v90, 1959 Allstate, 1979 p200
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UTC quote
Quote:
Hylomar spray.
Is that like the copper spray, but for paper instead of metal?
OP
UTC

Enthusiast
180ss with moded engine
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Location: Montreal
 
Enthusiast
180ss with moded engine
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UTC quote
Hi gang, thanks for the replies. I was looking around and read that good, old grease does the job too? I didn't even consider grease. I have some high-temp moble1 grease...would that work well? I just don't want to put anything really sticky that will make it tough if i need to reopen the cases.
Thanks
Fab
@chandlerman avatar
UTC

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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Lucky
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UTC quote
I mentioned plain ol' grease! Razz emoticon

Yes, you could use it and it can work. What you'll ultimately find is that the more modern solutions are more likely to work correctly over the long-term.

The Permatex aviation gasket cement is the least sticky, while still working. You can generally get the gasket back off pretty easily, then clean up the sealer with acetone.
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UTC quote
mor_ wrote:
RE:Hylomar
Is that like the copper spray, but for paper instead of metal?
Pretty much yes... I think copper spray may be rated for higher temps but Hylomar goes up to 425+ IIRC

It's just so easy to spray the gasket surfaces and the mild drying times gives you a zero worry window to get it on the cases and the cases closed.
Quote:
I just don't want to put anything really sticky that will make it tough if i need to reopen the cases.
None of the options listed will make it harder to reopen the cases, albeit some of the more sticky ones will ruin your gaskets if you have to reopen the cases.
But... that is a small price to pay for piece of mind.
@chandlerman avatar
UTC

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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46 Days Since Last Explosion
 
Lucky
@chandlerman avatar
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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46 Days Since Last Explosion
UTC quote
Birdsnest wrote:
None of the options listed will make it harder to reopen the cases,
In the case(s) of hondabond/yamabond/threebond, I beg to differ, but other than that, yes.
@mjrally avatar
UTC

Veni, Vidi, Posti
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
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Veni, Vidi, Posti
@mjrally avatar
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UTC quote
I like motoseal, but here's a little trick I've developed. Put it only on the lower half of the case gasket and selector box but all of the cylinder base gasket! That way when parked, there's no drips and you don't have to worry about air leaks.
@birdsnest avatar
UTC

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UTC quote
chandlerman wrote:
In the case(s) of hondabond/yamabond/threebond, I beg to differ, but other than that, yes.
Fair... I have exp with the three I mentioned: grease, permatex, and hylomar. (Case separator always wins.)
@hibbert avatar
UTC

Molto Verboso
Vespa
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Location: California
 
Molto Verboso
@hibbert avatar
Vespa
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UTC quote
Birdsnest wrote:
Hylomar spray.

I am a convert from the days of grease before converting to permetex and then the one true gospel of hylomar (and the angels did sing).

Find said religion here:
https://shorturl.at/31FXd
Yikes that's pricey must be good.
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UTC

Banned
3:5
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Banned
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UTC quote
never used the spray but have been using Hylomar from a tube or can since the 80s.

nice thing is if you need to split the case you can often do it without destroying the old gasket. Nice for road side work.
UTC

Veni, Vidi, Posti
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Veni, Vidi, Posti
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UTC quote
What ever you have lying around. .... Honestly, I use Motoseal because I bought a fairly large tube of it 15 years ago and still have half of it left.
@poidog avatar
UTC

Drama Free
79p200e 66smallstate 85pk50xl 84p125ets 63GL
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Drama Free
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79p200e 66smallstate 85pk50xl 84p125ets 63GL
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UTC quote
+1 to both of the below statements.

Beauty about the spray is that whatever isn't used at that sitting, stays good in the can. Sort of like spray paint vs. a can of paint. Plus the spray gives a nice, even, light coat, without having to muck around smearing it with your finger, or some other appendage, or some kind of tool.
Birdsnest wrote:
Hylomar spray.

I am a convert from the days of grease before converting to permetex and then the one true gospel of hylomar (and the angels did sing).

Find said religion here:
https://shorturl.at/31FXd
oopsclunkthud wrote:
nice thing is if you need to split the case you can often do it without destroying the old gasket. Nice for road side work.
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