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Suffolk Colt/Super Punch 25A asbestos penny washer on sump

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goodgrass Fri, 12/08/2016

 

 

Suffolk super colt 75G14-25A.pdf diagram number 56 "washer for bolt - asbestos E.3749"

Is this item available from anywhere ?

Why is it asbestos fiber and not paper?

I'm wondering if I could cobble something together as effective using just gasket paper and non setting gasket sealer.

Forums

hillsider Sat, 13/08/2016

I would think that you would struggle to find an Asbestos gasket now and there is no reason at all why you should not use a modern gasket material to make one. If you are using gasket paper use the thickest that you can get otherwise choose from the range of gasket material available from either the internet or an engineering supply company. You may even get away with using the side from a breakfast cereal box if used with some sealant but that would not be my first choice.

I suspect that the mention of Asbestos comes about because back in the day when these engines were produced many sheet forms of gasket making products were bound together with Asbestos fibres to give them mechanical strength and improved heat resistance.

wristpin Sat, 13/08/2016

X 2 for every thing that Hillsider has said. That gasket is well supported and not stressed but a bit of thickness and give will help spread the clamping load a bit.

While on the subject of  asbestos it is as well to remember that as well as that hazard older machines may well have been painted with lead based paints ; so a decent face mask or respirator is a must when rubbing down etc.

hillsider Sun, 14/08/2016

If the joint faces are in good condition one layer of the Gaskiod paper should be fine for the job. Re the Tesnit product that you have found I have used this brand to make gaskets and it would be very suitable for the job but I would not have thought that you needed the 1.5 mm thickness, it is available in varying thicknesses. 

goodgrass Fri, 19/08/2016

I have made a temporary washer, however I will certainly order a sheet.

Thanks

hillsider Fri, 19/08/2016

That's ok, good to hear that you are sorted. In fact if the 'temporary' one holds good why not leave well alone, the worst that can happen is an oil leak and it is in a position where you can see it before losing all of the oil from the sump.