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threebond
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SpacedMarine
Up north
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February 12, 2019 - 9:15 pm
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Just a quick question.Whats the best way of removing old threebond apart from scraping?Is there any kind of solvent I can use?

What's 7/16 in mm again?

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Blue Heeler
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February 12, 2019 - 9:24 pm
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Thinners, hot air gun, worn brass brush?(not all together,haha)

What`s wrong with your scraper? I`ve made them out of old power-saw blades and flat files, always worked ok for me.

Blue

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SpacedMarine
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February 12, 2019 - 9:26 pm
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Blue Heeler said
Thinners, hot air gun, worn brass brush?(not all together,haha)

What`s wrong with your scraper? I`ve made them out of old power-saw blades and flat files, always worked ok for me.

Blue  

Just being lazy blue.Was hoping there was some way of soaking it in something and just wiping it off.I know you can buy specific remover for it but it's £20 a bottle!

What's 7/16 in mm again?

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Blue Heeler
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February 12, 2019 - 9:30 pm
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Hopefully someone else`ll come up with some safe concoction from household cleaning agents, maybe even environmentally friendly.

Try hairdryer or hot air gun and nylon pan scourer.

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SpacedMarine
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February 12, 2019 - 9:44 pm
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Blue Heeler said
Hopefully someone else`ll come up with some safe concoction from household cleaning agents, maybe even environmentally friendly.

Try hairdryer or hot air gun and nylon pan scourer.  

Ta blue I'll give it a go just don't want to scratch the cases as I lapped them last time they were apart.

What's 7/16 in mm again?

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johnsullivan
east sussex
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February 13, 2019 - 9:40 am
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** Please log in to view ** dichlormethane is the base constituent of all gasket removers.Use outdoors ideally .You could not buy it years ago separately. they then banned it in paintstripper... oh the logic..Is very aggresive .Also degreases including baked on ..it is what these oven cleaning outfits use .There are numerous safety cards for it on the web,some a bit hysterical.It is not removed by water I use a little acetone to wipe up ..Acetone itself will deal with some gasket goo.Either are handy when mechanical means might cause damage.

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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bantammad
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February 13, 2019 - 10:42 am
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Hi chaps Bantammad ere the time and tested way to remove old stuck on gasket and sealent is a good scraper or a brass wheel in a drill used lightly I have used that method to remove stuck gunge from my days working on Medows  Perkins  Gardener Diesel engines in the  1960s I was known then as the grease monkey or the gofer  so have to say Blue Healer is on the money . regards LES  Bantammad

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johnsullivan
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February 13, 2019 - 11:49 am
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Using a rotary tool on gasket faces of alloy engines and gearboxes is not a good idea,particularly when old aged metal is concerned.If that seems the only way then keep the working surface lubricated to prevent heating.the surface is not consistently hard .

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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Blue Heeler
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February 13, 2019 - 12:11 pm
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Seems I`ve worked in the same trade as Les, rebuilt dozens of engines in agriculture....also heavy plant/trucks/cars and bikes, and as long as you don`t round off edges or take chunks out of the metal surfaces and they are clean, free of corrosion and old material, a slightly rough but even surface suits me fine for the gasket to bite into. Blown gaskets can be from the engine builder creating too smooth a surface for the gasket to seat/seal.

I use gasket goo where it`s appropriate to do so, taking a pride in seeing my engine`s exterior still oil-free years later.

I`m not old school grease the gaskets up type, although some swear by it and can work in some instances, but not all.

Blue

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bantammad
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February 13, 2019 - 12:11 pm
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A up Bantammad era after removing gasket etc oil stone across casting faces tried and tested over the past 58 years Blue is on the money regards Les

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Peterg
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February 13, 2019 - 11:02 pm
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For silicon based gaskets I find old credit cards effective, and they are too soft to damage the cases

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nickjaxe
Runcorn Cheshire UK
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February 14, 2019 - 9:08 pm
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I use acetone...makes short work of it.

My Bantam video              https://www.you.....jpOFmzRZRI

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AdrianS
Harlaston Staffs
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February 20, 2019 - 4:33 pm
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Cellulose thinners  ( buy the cheap gun wash) removes it . I know from experience!

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Dunk85
Minehead, Somerset
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May 19, 2019 - 5:48 pm
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Carb cleaner does the trick

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sunny
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May 20, 2019 - 8:34 am
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smlie     im  sill  useing  a  40 year  old  tin  of   RED  hermatite     to  be   truthfull  the   bottom  of  the  tin  had  rust  holes  in  it   so i  put  the   red  stuf  in  plastic  tubs      to  clean of   its  petrol  and  old   sacking

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cocorico
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May 20, 2019 - 9:38 am
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sunny said
smlie     im  sill  useing  a  40 year  old  tin  of   RED  hermatite ...

It might be 40 years old - but it's still younger than a Bantam!rofl

1956 D3 in the back of the barn with 6 other bikes ahead of it!

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