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: komet163b on October 28, 2025, 12:02:56 pm

Title: Re: Two MAMODS new to me - the MM2 sightglass leaks
Post by: RichSteamTx on October 30, 2025, 09:26:32 am

I have one of their steamrollers and had to deal with the rivets.  PITA but I had no other choice the was in bad shape - it was like it was dropped from a 3 story building!  You might be best to leaving it alone.

As for shipping from live auctioneers, my boats cost me 80+ in shipping from NJ.  Granted it was a bit box with 4 Weeden boats in it.  Between all the fees, tax, shipping I'll think twice getting anything like I did with my boats (but I do love my boats)!

Title: Re: Two MAMODS new to me - the MM2 sightglass leaks
Post by: Stoker on October 29, 2025, 08:44:24 pm

Having small leaks on Mamods is not unusual and is not much of a problem if you are just running them freewheeling. However, if you want to make them work a load, like accessories, then most any leak is going to make them very weak runners.

Title: Re: Two MAMODS new to me - the MM2 sightglass leaks
Post by: komet163b on October 29, 2025, 04:16:27 pm

  After some honest introspection I think it is best
left as is.  It does run pretty well in spite of the
leak.  Considering that it is not the most robust
engine boiler I'll count myself lucky it is not worse.

Happy steamer

Title: Re: Two MAMODS new to me - the MM2 sightglass leaks
Post by: Fullraceflathead on October 29, 2025, 08:51:40 am

I believe those rivets are a blind pop rivet readily available just be careful drilling out the old ones obviously you don't want to drill any deeper than the rivet.

Title: Two MAMODS new to me - the MM2 sightglass leaks
Post by: komet163b on October 28, 2025, 12:02:56 pm

I was hi-bidder thru Live Auctioneers for these two MAMOD engines.

Boy, is it expensive to ship from the Pacific Northwest to NYC!

They both look pretty nice and run on air.  I did steam up the
MM2 and it runs pretty well but it would run better if the sightglass
wasn't leaking.  Hmmmm.  So, I took a close look and I saw it is
riveted in place.  Damn those rivets and cheap bean-counters.

So, it does run on steam.  Is the sightglass fix straightforward
or a PITA?  It looks the latter. 

I'm tending toward leaving it as is.  I'm only concerned that it
does run - and pretty smoothly!

Any other comments, such as an easy way to fix it or....just enjoy
it, leaks and all, are appreciated.

I added some pix. 

Thanks,
Wayne

Thanks,
Wayne