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cereal packet gasket

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hmmmnz
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PostPosted: 18:21 - 07 Dec 2007    Post subject: cereal packet gasket Reply with quote

well my bike has been off the road for a month now, waiting on a sump gasket turning up from holland, and frankly im sick to death of riding the 2 wheeled sofa (aka the bandit 6)

any one had any experience with using the cereal packet gasket??
any recomendations should i use instant gasket on both surfaces as well??
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Paddy Blake
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PostPosted: 18:33 - 07 Dec 2007    Post subject: Reply with quote

Try to avoid using the corner of the box.The part that has a line along it.
Use sealant.
It is likely oil will seep out but very little.

Paddy.
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TUG
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PostPosted: 18:44 - 07 Dec 2007    Post subject: Reply with quote

instant gasket is all over my FZR and hasnt leaked yet and its been 6 months. even on the sump.
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MaybeGuy
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PostPosted: 19:06 - 07 Dec 2007    Post subject: Reply with quote

sump gasket isnt under pressure so near enough anything will work... the cerial box will be more than adequite as it will swell and seal better. remember to not use a 'glossy' box as the shiny stuff will probably fuck things up.
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stinkwheel
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PostPosted: 19:41 - 07 Dec 2007    Post subject: Reply with quote

I have an engine to rebuild as soon as I get the crank back from being reconditioned. I have two big rolls of proper gasket paper but I will be using cereal packet for the crankcase cover and base gaskets.

It works perfectly well, people have been using it for years.

I generally give the shiny side a rub down with some fine sandpaper to take the gloss off it. Fit with a really thin smear of blue hylomar on both sides.

You only really need proper gasket paper when the distance between the two parts you are joining together is critical.
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st3v3
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PostPosted: 19:55 - 07 Dec 2007    Post subject: Reply with quote

I did post but it seems not to have worked, basically I always cut 2 or 3 templates from the cereal box superglue-ing each together before sealing between the surfaces needing bonding. stops tiny leaks and is thick enough not to burn straight off if it does get hot enough.
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hmmmnz
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PostPosted: 19:59 - 07 Dec 2007    Post subject: Reply with quote

cheers guys,
and rubbing the shiny side is a good idea Very Happy
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stinkwheel
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PostPosted: 20:04 - 07 Dec 2007    Post subject: Reply with quote

st3v3 wrote:
I did post but it seems not to have worked, basically I always cut 2 or 3 templates from the cereal box superglue-ing each together before sealing between the surfaces needing bonding. stops tiny leaks and is thick enough not to burn straight off if it does get hot enough.


You seem to have missed a couple of points there.

1) Cereal packet is about three times thicker than normal gasket paper anyway. As such there is no need to use extra, a single thickness is more than sufficient.

2) Normal sump gaskets are made of thick paper anyway. A gasket cannot burn, even if it reaches a hot enough temperature to do so. Why not? Because it is tightly sandwiched between two pieces of metal, paper will not burn in the absence of oxygen.
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finpos
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PostPosted: 23:20 - 07 Dec 2007    Post subject: Reply with quote

Make two or three holes in the card so you can fix it to the sump plate with some bolts and washers, then tap a hammer on the card all around the inside and outside edges where you need to cut it. Tap on each 'hole' with the round end. That'll score the card most of the way through and it's easy to cut out the shape you need perfectly.

Tupperware is ideal for storing the displaced cereal.

f.
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hmmmnz
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PostPosted: 23:35 - 07 Dec 2007    Post subject: Reply with quote

thats a bloody good idea Very Happy
i put some ink all around the edge of the sump and pressed the card on it then cut out the line,
i like your way better though, as i then had to clean all the ink off Very Happy
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Whosthedaddy
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PostPosted: 23:39 - 07 Dec 2007    Post subject: Reply with quote

hmmmnz wrote:
thats a bloody good idea Very Happy
i put some ink all around the edge of the sump and pressed the card on it then cut out the line,
i like your way better though, as i then had to clean all the ink off Very Happy


Of course if it was still greasy and dirty in the first place then you could have used that as a marker for the borders.

Do you not have the old one to trace round instead?
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teampots
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PostPosted: 23:56 - 07 Dec 2007    Post subject: Reply with quote

Hmm, where do you get gasket paper from, and im guessing the cereal packet wouldnt work on a head gasket thats if you could get one to fit anyway what about copper gaskets, are they much cop ?
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G
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PostPosted: 00:02 - 08 Dec 2007    Post subject: Reply with quote

Done it on an R6 race bike for the clutch cover gasket, and some other time I forget.

I dabbed a smear of oil along the edge of the case and pressed it onto the non-shiny side to mark the bit I was going to cut out. Trim with a stanly knife against it where neared.

Seemed to work well Thumbs Up.
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Paddy Blake
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PostPosted: 00:13 - 08 Dec 2007    Post subject: Reply with quote

finpos wrote:
Make two or three holes in the card so you can fix it to the sump plate with some bolts and washers, then tap a hammer on the card all around the inside and outside edges where you need to cut it. Tap on each 'hole' with the round end. That'll score the card most of the way through and it's easy to cut out the shape you need perfectly.

Tupperware is ideal for storing the displaced cereal.

f.


I tap out the dowel parts first and then put the dowels in.That's if it has dowels fitted.

Paddy.
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Pete.
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PostPosted: 00:18 - 08 Dec 2007    Post subject: Reply with quote

No you cannot make a headgasket from gasket paper (or cornflake packets) Very Happy

I've made many many gaskets over the years. This is how I do it:

Remove the cover you're making a gasket for (obviously) and clean all traces of gasket off it. It's important to get both mating-surfaces fastidiously clean.

Take your gasket paper and offer the cover up to it to work out the best orientation with the smallest wasteage, especially important if you are making more than one gasket because you can move bits about and get multiple-gaskets from one sheet.

If the cover has dowels to locate it, measure on on the outside and make a hole in the gasket where this will line up to. Now this is your reference-point for making the whole gasket. You can either use a battery drill and appropriate-sized bit or what I use which is a set of leather-punches of different sizes. Use an old piece of timber under the sheet to drill into. If there are two dowels, hook the gasket paper over the 1st and pull it tight across the 2nd then tap-around the edge of the dowel to cut the paper and your paper should now be fixed to the cover and locted securely on the dowels.

If you don't have dowels, then place the paper on a flat bit of wood and put the cover on top, then use a battery-drill (and for a jap bike usually a 6mm bit) to drill through all the holes around the casing through the gasket paper, put some of the casing bolts in the holes to locate the paper.

Now draw around the outside of the casing to make the outline of the gasket.

For the inside, you can normally just cut around with small scissors, 6-10mm inside the line you have drawn, then cut around the outside with the scissors to finish your gasket. You could use a knife but you'll need to go careful because it's easy to slice right across the gasket you've made. You can also cut the inside of the gasket out by tapping around the inside edge of the casing with a small ball-pein hammer and using the sharp edge to cut the paper. This takes some practice to not stretch and tear the paper especially around the bolt-holes.

A good gasket on a proper-fitting casing shouldn't need any kind of sealer, but if you do use some be very very sparing with it, since it tends to squeeze-out a lot more than you would expect and the beads of it can come off inside the engine and block the oil-strainer/oilways to the head.

You can get the paper in sheets or rolls, including very heavy stuff, from most auto-factors.

Oh it usually smells of wee Very Happy
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Odie
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PostPosted: 00:20 - 08 Dec 2007    Post subject: Reply with quote

If you smear a thin layer of grease onto the casing you wish to make a gasket for, then place it on the gasket paper / card board box / cereal packet etc it will leave a perfect outline for you to follow.
years ago i brought some hole punchs of different sizes just for such a job as this.
Used them loads of times, had to "tap out" with a small hammer the gaskets before i had them, took ages but looked go and did the job adequately
odie
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LeeR
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PostPosted: 10:40 - 08 Dec 2007    Post subject: Reply with quote

In the past I've used instant gasket (the blue sort if it matters) on sumps and rocker covers on car engines with no major issues, but obviously not on pressurized areas. Thumbs Up
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st3v3
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PostPosted: 16:34 - 08 Dec 2007    Post subject: Reply with quote

Your right Stinkwheel, was thinking of the exhaust for some reason.
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hmmmnz
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PostPosted: 17:00 - 08 Dec 2007    Post subject: Reply with quote

well its on and not leaking, gave it an oil change and started her all up, started on the button Very Happy after over a month of sitting out side in the rain in bits,
also decided to give the bandit a oil and filter change..
do you think i can get the fucken filter off!!!!
its pissing with rain/sleet, the exhaust ststem is now off, but im inside warming up. ready for the second part of the battle with the bandit filter. gggggrrrrrrrr wank!!"!
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funmonkee
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PostPosted: 10:27 - 09 Dec 2007    Post subject: Reply with quote

^^^ do it in the summer house, if you can fit the bike and yourself in there Evil or Very Mad
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hmmmnz
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PostPosted: 11:08 - 09 Dec 2007    Post subject: Reply with quote

its done now Very Happy
i just have to make up some new brackets for the headlight,
and a new bracket for the exhaust,
and i have a slight ticking noise from the top of he engine, never a good noise Sad must be time to do he stupid shims
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funmonkee
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PostPosted: 13:33 - 09 Dec 2007    Post subject: Reply with quote

What would you do if you didn't have your bikes to fix Question
(might have to talk to the gf?)
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hmmmnz
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PostPosted: 14:18 - 09 Dec 2007    Post subject: Reply with quote

well we can't have that Very Happy
the bastard gasket tuned up today, first time ive had royal mail deliver on a sunday!!! bastards, well ive got a spare in case my professional cereal box leaks Very Happy
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funmonkee
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PostPosted: 14:28 - 09 Dec 2007    Post subject: Reply with quote

hmmmnz wrote:
well we can't have that Very Happy
the bastard gasket tuned up today, first time ive had royal mail deliver on a sunday!!! bastards, well ive got a spare in case my professional cereal box leaks Very Happy


They're taking the piss. no postie works on a Sunday Laughing
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stinkwheel
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PostPosted: 16:39 - 09 Dec 2007    Post subject: Reply with quote

teampots wrote:
Hmm, where do you get gasket paper from, and im guessing the cereal packet wouldnt work on a head gasket thats if you could get one to fit anyway what about copper gaskets, are they much cop ?


Copper is the best stuff to make head gaskets from. Trouble with a lot of modern bikes is it is too fiddly to cut them out of copper. Too many small oilways and water passages too close together.

Ideal for older bikes though. You can anneal and reuse copper gaskets a few times too, makes whipping a head off considerably cheaper and less hassle.
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