IHC Model M

This forum is for Internal Combustion Engines such as Hit 'n Miss, Throttle Goverened One Lungers etc. Repair, Machining, Operation, Buy/Sell/Trade of these engines are all topical.

Moderator: Harold_V

Post Reply
User avatar
Ian_Timshel
Posts: 27
Joined: Sun Jan 05, 2003 2:07 am
Location: Manitoba, Canada
Contact:

IHC Model M

Post by Ian_Timshel » Tue May 25, 2004 1:10 am

I spent yesterday working to make this old model M run. I hadn't ever had a go at one of these before so it's all a bit foreign to me.

Aside from prettying it up some I hadn't even figured out the electrical until yesterday. Most of the original ignition is missing so it's simply a make and break engine now.

The only way I could get enough compression to fire it was when the piston had an overly healthy coat of heavy oil. It burned a lot of oil this way and made quite the white cloud of exhaust. Obviously I'd like to have it run as well as it can but what to do first to ensure this is still a mystery to my newbie eyes.

I'd like to think something could be done with it the way it is but maybe not. It appears to me that the seal isn't good for the piston. Now whether it's rings, cylinder or piston I don't know. I suspect rings and cylinder are easiest to deal with.

Are ring expanders something worth investigating? I want to play before I commit to any major restoration.

I read quite a bit about setting up a buzzbox to serve up the spark. I think it's delivering a good enough spark to do the job.

The fuel I dealt with by closing the overflow back to the tank and filling the carb reservoir as needed.

It often seemed starved for fuel. I had it running for about five minutes once but other than that I got tired of choking on the smoke.. lol

How do I best help this old timer? If I can get the compression up I'll consider some ignition parts to help get a bit closer to original. I have two others coming in early June. One is big I think. That should be fun too.

Any suggestions are welcome. Ian.
Registered Linux user #256502

User avatar
Orrin
Posts: 307
Joined: Sat Jan 04, 2003 12:24 pm
Location: SE Washington State, near Moscow, Idaho

Re: IHC Model M

Post by Orrin » Tue May 25, 2004 8:14 am

Your best bet would be to go to the Smokstak forum, register, and post your questions. Dave Reed is a regular, there, and he can provide you with piston rings.

The IHC "M" engines used a pot metal siphon inside the carburetor. Usually, the bottom of it is corroded away, leaving it too short to reach to the bottom of the carburetor bowl.

There's only one way to check to see if that's the case: open up the carb and take a look. That darned pot metal swells when it corrodes, so it's usually impossible to remove the siphon/jet assembly without breaking it.

I make new jets out of brass and make the siphon out of small diameter brass tubing. A bit of soft solder holds the siphon in place.

Hit 'n' Miss Enterprises may sell reproduction siphon/jet assemblies. Ed Deis is a "regular" on Smokstak. He's the proprietor of Hit 'n' Miss..

Here's the URL for Smokstak

http://www.enginads.com/smokstak.cgi

[img]/ubb/images/graemlins/cool.gif"%20alt="[/img]Orrin
So many projects, so little time.

User avatar
Ian_Timshel
Posts: 27
Joined: Sun Jan 05, 2003 2:07 am
Location: Manitoba, Canada
Contact:

Re: IHC Model M

Post by Ian_Timshel » Fri May 28, 2004 1:22 am

Thanks for the link Orrin
Registered Linux user #256502

Post Reply