How to use instant gasket... Properly?

[BillyJ]

I have a '91 Ducati 900ss and most of the gaskets aren't produced anymore, in this case I need the starter motor gasket and the left hand side engine cover gasket.

Some are available from 'merica for lots of monies but after talking to the guys at Moto Rapido (Love these guys), it was recommended that i just use instant gasket.

Having never used it before and being told that it will get in the engine and mess up the oil pump, i am slightly apprehensive. So how do I use it properly?

TL;DR
How do you use instant gasket properly so you don't get it in the engine?
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Had: '06 CBR125R + '01 GSF600 + '07 SPRINT ST 1050 + '80 CB250 RSA + '93 Ducati 900SS
Have: '13 GSXR-1000 + '01 CB500S
"The aryan confuser"

[bikenut]

the short answer is don't use it....

you could make your own paper gaskets...............of the right thickness of material...........

instant gasket can and does block oil ways and even cause holes to burst...threaded holes that the instant stuff can get down and cause the casing to burst...........it cant get out and you keep screwing the bolt into the hole till it cant cope and bursts the threaded hole.......it happens dude.....

if you have to use the stuff make sure no oil ways are involved, and that you only use enough to stop a leak...ie use it very sparingly...........I

f you use too much it will oooooze out if the joint inside the engine and may end up blocking the oil pick up pipe filter screen, reduced oil flow etc etc etc ....not something that will do you ducati any good. :karma:
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nuts about bikes

[mysterious_rider]

You speak rubbish. Its the best stuff. Spread on a line all away round where you wasn't to seal , give it a few mins standing alone. Then push on and put bolts in hand tight barely making a seal. Leave five mins. Nip up bolts and leave to set. Preferably an hour minimum. Used on whole gearbox rebuild worked perfect.
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KAWASAKIIIII

[stinkwheel]

I wouldn't use gasket goo INSTEAD of a gasket, I'd only use it where a gasket was sealing in a questionable manner due to slight warping/scratching and needed a little backup.

I use Permabond A136 for most things. It is liquid and can be applied very thinly with a spreader or paintbrush and smells of red liquorice. It only sets when compressed. so you can apply it then wipe it away from the inside edge of the casing with a rag.

I use wellseal for cylinder heads which can also be painted on and stinks of heavy duty, highly toxic industrial solvents (for good reason).

I only use either sparingly and only if I have to.

So if you can no longer buy gaskets, you're going to need to make them for yourself.

Engine cover gaskets are usually paper.

So cut a new one out using the cover as a template, take care not to miss any holes corresponding with oilways. A paper hole punch is handy.

You can buy proper gasket paper or, like me and many others, use some stiff card like the back of a cornflakes packet.

You can also buy viton rubber or silicone sheet to make rubber gaskets and copper sheet to make head gaskets.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[stinkwheel]

[sickpup]

[Islander]

Ducati don't produce a lot of the gaskets any more. They use 3 Bond as a sealant instead - there's even a Ducati branded version available.

You have two options, buy some gasket paper and make your own or use 3 Bond to do the job.

[BillyJ]

Is using gasket paper literally a job of getting a knife/scissors and a hole punch and then meaure and cut to size?

And if i were to use instant gasket, like this:
https://www.ebay.co.uk/itm/Genuine-Ducati-Spare-Parts-Threebond-Liquid-Gasket-50G-748-916-996-749-1098-/181638624155?_trksid=p2054897.l4275

Then how does one PROPERLY apply it, is it the same method explained by mysterious_rider?
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Had: '06 CBR125R + '01 GSF600 + '07 SPRINT ST 1050 + '80 CB250 RSA + '93 Ducati 900SS
Have: '13 GSXR-1000 + '01 CB500S
"The aryan confuser"

[Taught2BCauti...]

Place the gasket paper on a smooth soft surface - I use an ironing board covered with a cloth.

Press the part you are making the gasket for, firmly onto the paper to get an impression of the outline, which you can then cut out with scissors (I find nail scissors best for small items like carburettor gaskets).

For 'instant gasket' silicone, I would apply a thin bead to one part only, then align and press both parts together firmly for a couple of seconds, then pull them apart to remove the surplus - checking that you have continuity on both parts.

Leave them to dry partially for a few minutes before re-assembly.
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Honda Varadero XL125(V8)
www.TheFutureIsHere.eu

[Vincent]

I had to use a cornflake packet on an alternator once as an emergency repair. Even the small difference in thickness caused the end of the crank to run too close to the inside of the casing and they welded themselves together...so ja....not a good idea to miss the gasket out completely on some applications
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Space Is Deep

[temeluchus]

Pictures of the offending parts and where you stuff em would help, as its all rather context sensitive.
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Some shite cruiser. Now with guns and FREEDOM!

[mysterious_rider]

[Nobby the Bastard]

Here's the best way of using instant gasket.

1. Open blister pack

2. Throw contents of blister pack in bin.

3. Throw blister pack in bin.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[stinkwheel]

The main thing with any gasket compound in a motorcycle engine is not to get any in the engine.

That means a thin application, keeping away from the inside edge of the gasket surface and well away from any oilways.

Some gasket compounds should be allowed to dry before fitting, some should not, some don't set at all. As such, you'd need to follow the manufacturers instructions in that respect.

Keep in mind that the stuff tends to squeeze and spread out when you tighten the part down. Might even be an interesting exercise to see how far it moves by applying some to a small section, fitting it, then removing it and seeing if any squeezed out on the inside.

When I use my permabond stuff as a sealant (so round my carb gasket last time I used it), I apply a very thin line of it all round the casing about 1/3 of the way in from the outside edge. I'm aiming to just see a line of the stuff around the edge when it's all tightened down but not enough to wipe away with a cloth.

Here's how not to do it (the orange stuff is instant gasket). The cam is fuxored due to oil starvation due to instant gasket in the oilways.
https://i48.photobucket.com/albums/f216/stinkwheel/305/Image028.jpg
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[WD Forte]

If you're allowed to play with sharp things
making your own is easy enough
You need tea buns fags soothing music and other stuff
like gasket paper, scissors and craft knives.
The screwdrivers with tapered shafts are for pushing down the
bolt holes to lock it in place especially before cutting the inner and outer profiles
I prefer to use the scalpel type knives and use an up down sawing motion rather than drag a blade along this helps keeps the paper flat

https://oi62.tinypic.com/vik5z4.jpg
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bikers smell of wee

[stevo as b4]

Don't you have to shim up the end float on the crank on the Ducati engine's depending on if or not you use a gasket on the crankcase halves, or use a liquid gasket instead?

Id not use a liquid gasket on a joint that did not have perfectly smooth and flat sealing faces.

[Iain.]

Pattern gasket set for a '91 Ducati 900?

£55 inc vat through Larssons at work....or £70 throught wemoto.

https://images.matthies.de/larsson/bce/220_bild2_7340714.jpg

https://www.wemoto.com/bikes/ducati/900_ss/91-93/

Unless I'm doing that potato thing again, I don't see an issue

[bikenut]

I love the pic with the cake and cuppa etc...... :D


the cam shaft pic...is that an xs250 yam??

so what about c/case joints that use a liquid ( semi ) joint sealer....with the sealer dribbling down ( or is that up ) inside the engine....which due to heat and age etc, as well as oil attack, comes off and can block the oil pick up pipe filter screen.......

instant gasket if enough of it gets down a threaded hole and enough of it, can cause a thinish casing to burst.......any pics of that happening out there?

there are places and times for instant gasket....but a gasket when needed is better and more risk free.
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nuts about bikes

[RhynoCZ]

It always pisses me off, when someone uses a sealant instead of proper seals/gaskets. I've seen things and they did not make me happy.

Carburetors full of that crap, engine heads completely messed up with it, exhaust pipes ''glued'' together with it and so on. Just say no to Ollie McBotcher and his mates from Botchertown, South Botchington.
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[A100man]

[Islander]

[BillyJ]

Woops sorry for late reply, BCF mail has stopped telling me I have replies to posts...

Yep, thanks iain but I have seen those (you wouldn't believe I ebay/google/wemoto'ed it before posting )and they only make top end gasket sets so no use to me, I need crankcase gasket.


I am slowly not liking the idea of using instant stuff, I was going to apply some, close it up, wait 24h, remove the cover and see it I did it right...then do it again. I would rather just make a paper one.

Is the best way of doing it without taking the engine off the bike to somehow mark the sealing surface and press the paper onto there so you know where to cut?
____________________
Had: '06 CBR125R + '01 GSF600 + '07 SPRINT ST 1050 + '80 CB250 RSA + '93 Ducati 900SS
Have: '13 GSXR-1000 + '01 CB500S
"The aryan confuser"

[Islander]

I've just done this on my M900 after changing the ignition pickups. I used the Ducati badged 3 Bond (this is what they use in the factory) cleaned both mating faces with some brake cleaner (excellent degreaser and it removes the old sealant a treat with a bit of a scrub with an old toothbrush) and ran a thin bead of the sealant inside of the bolt holes and down the middle of the rest of the cover. Refitted the cover and am leaving it a full 24 hours to cure before I refill with oil.

Remember that the crankshaft end float will be based on the use of 3 Bond and using a paper gasket might throw this out.

Ducati stopped using paper gaskets for this sort of thing a while ago which is why you can't find any. 3 Bond is the correct stuff to use.

[BillyJ]

[Islander]