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: Earlytimes on May 17, 2020, 06:57:39 pm

Title: Re: Marklin 4158/7 compound engine test run.
Post by: Earlytimes on May 20, 2020, 02:15:58 pm
Very nice engine, thanks for sharing.

Many other Märklin Compounds (and also the replica...) have two covers (= cut-out heavy, nickel plated brass tubes) attached to the cylinders (as if there were cross-head-guards for the piston rods) - yours does have these. My own compound doesn't have them either - now I wonder if any only took them off - or was there a series without them...!?!?


 When I first researched this engine I do remember seeing that it didn't have those guards. I think it's another indication of an earlier engine.
 [attachimg=1]
Title: Re: Marklin 4158/7 compound engine test run.
Post by: yussufhippo on May 20, 2020, 12:15:52 pm
Very nice engine, thanks for sharing.

Many other Märklin Compounds (and also the replica...) have two covers (= cut-out heavy, nickel plated brass tubes) attached to the cylinders (as if there were cross-head-guards for the piston rods) - yours does have these. My own compound doesn't have them either - now I wonder if any only took them off - or was there a series without them...!?!?
Title: Re: Marklin 4158/7 compound engine test run.
Post by: Earlytimes on May 19, 2020, 09:54:03 am
Lovely engine Bob, you have it running nicely.
.   Thanks Bruce. It was a spur of the moment idea to see if it would run. It had been stored away since a move. It actually would barely run at first until I fixed the site glass leak. It needs lots of steam to get everything moving.
 Fixing the site glass went well except it still wanted to leak where the glass seals using an O-ring, so I had to remember back to making gaskets out of silicon tubing which sealed it nicely. Cutting the glass was about the same experience.... how did I do this again  :).  All good fun. 
 
Title: Re: Marklin 4158/7 compound engine test run.
Post by: St Paul Steam on May 19, 2020, 08:56:09 am
Lovely engine Bob, you have it running nicely.
Title: Re: Marklin 4158/7 compound engine test run.
Post by: Earlytimes on May 18, 2020, 05:18:28 pm
   Yes, I've seen that style burner before. Thanks again.
Title: Re: Marklin 4158/7 compound engine test run.
Post by: parallelmotion on May 18, 2020, 05:08:51 pm
Yes, they were made over such a long period of time that there were variations in the same model. Here's what my burner looks like.
Title: Re: Marklin 4158/7 compound engine test run.
Post by: Earlytimes on May 18, 2020, 04:59:48 pm
   Thank's for the pic's Brent. Mine also has a green color on the bracket for the cylinders. And if you look close or enlarge that last picture the orange base is textured with bumps. I don't think I've ever seen a burner like the one it has either. The cover over the cylinders is smooth also. I find it interesting to see differences. 
Title: Re: Marklin 4158/7 compound engine test run.
Post by: parallelmotion on May 18, 2020, 04:40:57 pm
I haven't heard of one of these with a bare brass boiler jacket or in any other color than black, although the paint often got burned off. Here's a couple photos of mine.
Title: Re: Marklin compound engine test run.
Post by: Earlytimes on May 18, 2020, 10:38:27 am
   Thanks Brent.... I'll post some pic's of details. The boiler cover has a greenish finish which I've never seen before, not sure if it's paint or some kind of applied process like anodizing ?   The burner is also unusual. I think it had a Marklin tag on it's base like some do.... I'd[attachimg=1][attachimg=2] like to find one of those but I think there are guys who can remake them ? 
Title: Re: Marklin compound engine test run.
Post by: parallelmotion on May 18, 2020, 09:24:46 am
Hi Bob,
That's model 4158/7/91 which was made from 1911 up until 1939; I have an identical machine. There's usually a Marklin plate on the steam dome and the boiler shell would have been painted black. Very nice.
Brent
Title: Re: Marklin compound engine test run.
Post by: Earlytimes on May 17, 2020, 09:58:43 pm
  Thank's Nick.....   It's a cool engine to watch run.
Title: Re: Marklin compound engine test run.
Post by: Nick on May 17, 2020, 09:50:50 pm
Very nice engine Bob, hope to find one of these myself someday to go with my 16051...
Title: Marklin 4158/7 compound engine test run.
Post by: Earlytimes on May 17, 2020, 06:57:39 pm
 Test run of this Marklin. It had a leak at the sight glass that wouldn't let it build enough steam, so I repaired that and it lives. Not sure of the year or model number ?  so if you know fill me in.

 https://youtu.be/vnGscX-cRPM