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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
primary drive case gaskets PD14, PD14/1, ET106,
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<blockquote data-quote="Martyn Goodwin" data-source="post: 38657" data-attributes="member: 2433"><p style="text-align: center"><p style="text-align: center"><span style="color: #000000"><span style="font-family: 'Calibri'">Painless Paper Gaskets</span></span></p> </p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">How often do you purchase a paper gasket for your bike and then find it is out of shape, distorted, crushed and or folded or that it just plain does not fit – and when (should that be if) you finally coax it into position the seal ends up leaking anyway?</span></span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #000000">I was faced with this problem and found the solution. I purchased a roll of Gasket “paper” made byGarlock (USA). It is 0.014” thick, “Garlock681” and it cost pennies! To make agasket simply put the required component face down onto the gasket paper thencreate an outline with a pencil. Cut outthe outline then place the soon to be new gasket on the face of the componentso that it is all aligned, then with a small ball pein hammer GENTLY tap aroundthe edge of any one of the through holes. This will neatly create a hole. To keep all aligned now drop one of the intended securing bolts/screwsthru this hole and into the component. Now create another hole diagonally opposite the first and again pop in ascrew/bolt. With the gasket now “lockedin position” you can use the same method to create the rest of the fixingholes. If you want a skinny gasket(something I DO NOT do) then you can use the hammer again to GENTLY cut out thecentre of the gasket and it’s all done.</span></span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #000000">For me, I use a scalpel to cut out the centre of the gasketleaving a width of at least ½ inch then I trial fit it on the motor, trimmingfurther as required to clear any components. This results in a self-supporting gasket that is easy to put intoposition. As a by-product, theadditional gasket material provides a better “wick” to facilitate the postinstallation swelling/sealing of the joint.</span></span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #000000">As to pre-treatment of ANY paper type gasket material. I talked at length with the engineers atGarlock and they advised very strongly AGAINST any pre-treatment. The paper gasket material is designed toswell once it comes into contact with oil or water and this swelling happensonly ONCE. So you apply the gasket drythen tighten down all the bolts etc. After a couple of hours again check and as required retighten theretaining bolts and only then put the fluid into the motor. What happens then is the gasket starts toabsorb some of the fluid and it swells – by up to 10% and in doing so fills anyminor voids and also increases the load – i.e. tightness – of the retainingscrews. Subsequent to the initialinstallation if you need to open up the joint for any reason you should use anew gasket, for have gone through the swelling process once, on reuse therewill be little, if any, subsequent gasket swelling and leaks are highly likely.</span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">Cripes, it’s taken me longer to describe this that it doesto create a full set of gaskets for a Comet!</span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">Martyn</span></span></span></p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 38657, member: 2433"] [CENTER][CENTER][COLOR=#000000][FONT=Calibri]Painless Paper Gaskets[/FONT][/COLOR][/CENTER] [/CENTER] [SIZE=3][COLOR=#000000][FONT=Calibri]How often do you purchase a paper gasket for your bike and then find it is out of shape, distorted, crushed and or folded or that it just plain does not fit – and when (should that be if) you finally coax it into position the seal ends up leaking anyway?[/FONT][/COLOR][/SIZE] [FONT=Calibri][SIZE=3][COLOR=#000000]I was faced with this problem and found the solution. I purchased a roll of Gasket “paper” made byGarlock (USA). It is 0.014” thick, “Garlock681” and it cost pennies! To make agasket simply put the required component face down onto the gasket paper thencreate an outline with a pencil. Cut outthe outline then place the soon to be new gasket on the face of the componentso that it is all aligned, then with a small ball pein hammer GENTLY tap aroundthe edge of any one of the through holes. This will neatly create a hole. To keep all aligned now drop one of the intended securing bolts/screwsthru this hole and into the component. Now create another hole diagonally opposite the first and again pop in ascrew/bolt. With the gasket now “lockedin position” you can use the same method to create the rest of the fixingholes. If you want a skinny gasket(something I DO NOT do) then you can use the hammer again to GENTLY cut out thecentre of the gasket and it’s all done.[/COLOR][/SIZE][/FONT] [FONT=Calibri][SIZE=3][COLOR=#000000]For me, I use a scalpel to cut out the centre of the gasketleaving a width of at least ½ inch then I trial fit it on the motor, trimmingfurther as required to clear any components. This results in a self-supporting gasket that is easy to put intoposition. As a by-product, theadditional gasket material provides a better “wick” to facilitate the postinstallation swelling/sealing of the joint.[/COLOR][/SIZE][/FONT] [FONT=Calibri][SIZE=3][COLOR=#000000]As to pre-treatment of ANY paper type gasket material. I talked at length with the engineers atGarlock and they advised very strongly AGAINST any pre-treatment. The paper gasket material is designed toswell once it comes into contact with oil or water and this swelling happensonly ONCE. So you apply the gasket drythen tighten down all the bolts etc. After a couple of hours again check and as required retighten theretaining bolts and only then put the fluid into the motor. What happens then is the gasket starts toabsorb some of the fluid and it swells – by up to 10% and in doing so fills anyminor voids and also increases the load – i.e. tightness – of the retainingscrews. Subsequent to the initialinstallation if you need to open up the joint for any reason you should use anew gasket, for have gone through the swelling process once, on reuse therewill be little, if any, subsequent gasket swelling and leaks are highly likely.[/COLOR][/SIZE][/FONT] [SIZE=3][COLOR=#000000][FONT=Calibri]Cripes, it’s taken me longer to describe this that it doesto create a full set of gaskets for a Comet![/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]Martyn[/FONT][/COLOR][/SIZE] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
primary drive case gaskets PD14, PD14/1, ET106,
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