2N Pinnion

later,dave

If you've been welding iron successfully for 15 years, I'd say you know how to do it. Stitching may be something you'd want to add to your arsenal of repair techniques.

If you go to the web page about it, I'd be interested in hearing what your thoughts are.

• cast iron stiching

It's also a type of welding, cast iron welding !! I'd hate to see rusty go to his local welding company,ask if they could repair his casting, and have them say yes by welding it and have Rusty come back with "No, you can't weld it, you have to stitch it", he might look foolish !!

later,dave

No more then sewing is a product of Singer. Singer makes the needle, the actual sewing process is from the user.

>It's also a type of welding, cast iron welding !!

No. I don't know where you got that idea. It's an alternative to welding. As is pluging.

>I'd hate to see rusty go to his local welding company,ask if they could repair his
>casting, and have them say yes by welding it and have Rusty come back with
>"No, you can't weld it, you have to stitch it", he might look foolish !!

I don't know why he'd do that. I certainly never suggested anything of the sort.

If you wish to consider stitching to be stupid without researching it, that's fine. As I told you, I've come to understand from people with cast iron engine blocks that it is a very good method of repairs, far superior to using iron plugs, and sometimes better then welding. Repairs can be done this way to areas that normally could not be repaired by either plugs or welding. But again, if you wish to simply blindly ridicule it, that is your choice.

me

Sincerely recommending you not let your mocking bird mouth run away with your canary arse,
Nolan

PS, I got nuclear certified welding in the Navy. How high do *your* welding certifications go?

Gee , guess I should have joined the navy to learn as much about welding as you did !

You have a good day Bubba #2 and we'll see ya around ! (-:

later,dave

On re-reading your sentence about stitching being welding, I understand what you were saying. That wasn't the way I read it the first time. Things can be read different ways, and it causes all kinds of problems with written text. I took it as you were saying this stitching process with the lock thingies was also a welding process, not that you were referring to stitch welding. A simple misunderstanding.

Done deal.

me

You are absolutely right that there is a relationship to plugging with tapered cast iron pins but with one very big difference.
Tapered pins induce a spreading force on the casting when tightened into the casting. Our patented CASTMASTER stitching pins and thread inserts do the opposite. The CASTMASTER threaded pins not only seal by installing them in an overlapping manner over the length of the crack but each pin adds strength back to the cracked area.

Dave is right that there is a method of welding known as "stitch welding". It is attempted with minimal positive results on cast iron. However, metal stitching does not involve any heat or epoxies to join the cracked casting back together. Lord knows that cast iron has a bad rap for being difficult to repair. I went through an apprenticeship thirty years ago in the art of hot welding diesel cylinder heads, engine blocks, transmission cases, etc. Hot welding involves very high preheat temperatures to properly stress relieve and anneal the weld and weld affected area. I cut my teeth back then using the old tapered pins or plugs. It was very slow and difficult to make serious, structural repairs. I know that it's hard to believe that there is finally a sound solution to this very old problem, but the truth is there really is a new, easy to use solution. There are thousands of people who have made millions of successful repairs with our products. Like anything else, you have to see it to believe it. So, Dave, take a minute and go check out the web site: www.locknstitch.com and spend some time on the CASTMASTER (C Series) pages. It really does work. I hope this doesn't sound like a sales pitch beause I don't intend it that way. We have a special understanding of welding and stitching cast iron and we want to share it with anyone who cares to spend a few minutes. Check out the section on cast iron welding and you'll see my dirty hand prints all over it.

Fact is, if the cast iron is at least 1/8" thick, and it's machinable (arc welding hardens the cast iron so hard that you can't drill it) and you can get to it with the tooling, it can be repaired. Thanks again for the kind words and for posting the link and for allowing me to intrude.

Thanks very much,
Gary J. Reed

PS: I've repaired a lot of 8Ns myself.

later,dave