Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: meddyliol on June 13, 2019, 02:03:00 am

Title: Mamod washers
Post by: meddyliol on June 13, 2019, 02:03:00 am

Sorry for keep asking these stupid questions. My Steam Wagon probably needs new washers on the safety valve (water filler) and the whistle. The safety valve looks to be 1/4" and might be a rubber 'O' ring. The whistle doesn't look as if it has a metal washer which doesn't seem right to me. Looking at ebay the washers all seem to  be fibre. Is this correct?

Thanks

Brian

Title: Re: Mamod washers
Post by: Jim on June 13, 2019, 08:03:40 pm

Hi Brian, there's no stupid questions mate....ask away!

Yes, they are some sort of fibre washers.

I have used O rings, and also cut some out of gasket material (from auto shops) and also used leather.

They are easy to make if you have some old leather from a belt or a pair of boots etc laying around the house.

If you use an O ring, use the tightest fitting one that you have.

Title: Re: Mamod washers
Post by: meddyliol on June 14, 2019, 01:39:02 am

Thanks for that, I assume you mean the steam whistle as well?

Brian

Title: Re: Mamod washers
Post by: Jim on June 14, 2019, 01:51:10 am

Quote from: meddyliol on June 14, 2019, 01:39:02 am

Thanks for that, I assume you mean the steam whistle as well?

Brian

Yes Brian, same for the whistle as well.

It works out a lot cheaper making your own.

Title: Re: Mamod washers
Post by: CBWho on June 14, 2019, 08:55:52 am

Rubber o-rings do work but they seem to fail on a lot of loosening and retightening. I find that dark gray automotive high temperature gasket paper works the best. I have a leather punch with different sizes so I can make a nice fit.