home made gasgets

[exvalvesetdabbler]

Just wondering if anyone has any comments regarding this flexoid oil resistant paper for making gasgets.

Planning on getting the sump off this winter and having it vapour blasted to tidy it up a bit and as far as I know it's probably it's the  original gasget, I re-used it last time I had the engine out 20 years ago to replace the cam and primary chains.

I have roll of old gasget material but it contains asbestos so not keen on using it.

Regards
Dave.

[Bryanj]

Careful which gaskets you make, Honda work the gasket thickness into any clearance required, hence why using liquid gasket dont work

[Johnwebley]

My bike has an O rings,

I would suggest just replacing it

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[Bryanj]

Good point, 750, 400 have paper whilst 500, 550 have O ring

[exvalvesetdabbler]

Careful which gaskets you make, Honda work the gasket thickness into any clearance required, hence why using liquid gasket dont work

Thanks, I have heard about the problems of using too thin material on the clutch cover causing the kick start to bind a bit, don't see any issues with the sump on a 400?

Regards
Dave

[K2-K6]

Just wondering if anyone has any comments regarding this flexoid oil resistant paper for making gasgets.

Planning on getting the sump off this winter and having it vapour blasted to tidy it up a bit and as far as I know it's probably it's the  original gasget, I re-used it last time I had the engine out 20 years ago to replace the cam and primary chains.

I have roll of old gasget material but it contains asbestos so not keen on using it.

Regards
Dave.

It doesn't generally present much in the way of problem when in stable form. I had to keep a list of it in installation of factory environment, which had to have items labelled to identify, partly for contractor H&S etc, not allowing certain activities like filing, but just left alone and effectively controlled, that's for stable product and not the loose fibre blue type.

Shearing to cut etc, highly unlikely to cause any rise in risk profile. I have a punch block to shear hole in it too for bolts. Or you can use the leather hole cutting "stirrup" type to facilitate. 

In reality to this, machining MDF etc has more potential risk just because the fibres are liberated and ingested easily.

[TrickyMicky]

Why not just buy a new gasket?

[exvalvesetdabbler]

Improving  my skill set.  The day will come when bits like these are scarce or no longer available and all you can get will be ones at silly prices on fleabay.  My dad used to make a lot of gasgets for small two strokes out of copper sheet or a thick paper hoover bag.

Regards
Dave

[K2-K6]

Why not just buy a new gasket?

It could equally be said  "why not just make one" with the same  value attached to the question.

At my apprenticeship, we made small die and punch sets for doing things like this, on gaskets, shims etc as part of routine training skills.

The trade of "Fitter" (not my training) was of almost bespoke fitting of components that could have come from different manufacturing stream, into a whole functional unit. That involved, fetling, making gaskets of various materials, shim manufacture, filing and scraping as skilled parts to best utilise the production available.

Much of that being lost nowadays, but one way to understand processes like this is to be more involved. Nothing wrong with making your own gasket in reality.

[DomP]

I used flexoid gasket sheet to make gaskets for my carb top covers, mostly because 'why not' than not wanting to buy new ones.  I've since used it to make carb gaskets for my late mum's inherited Case model R

[Johnwebley]

I you want to see gaskets being made,

Check out Allen Millyard YOUTUBE channel,

On most of his builds he makes new gaskets

A wonderful way to learn



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[exvalvesetdabbler]

Yes - seen Alan's video, that's why I originally asked about flexoid as a replacement for the old stuff that has asbestos in it.

Dave..