LumberJocks

Fixing break in cast iron

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by rwe2156 posted 08-04-2015 02:48 PM 658 views 0 times favorited 9 replies Add to Favorites Watch
View rwe2156's profile

rwe2156

2198 posts in 946 days


08-04-2015 02:48 PM

It a Jet Lathe 1442.
During the process of replacing the reeves drives, I put the whole thing together and forgot to put the belt on!

I had put the indexing pin in to keep the shaft from turning while installing an E clip on the shaft, but when I remembered the belt and removed the clip and tapped the shaft back out, the indexing pin broke off a piece of the cast iron housing containing the threads for the 3 indexing pin locations.

As a total newB to turning (never even used a lathe yet) I’m wondering if the indexing pin is used much.

I can’t think of a way to fix it the piece that broke off is pretty small.

-- Everything is a prototype thats why its one of a kind!!


9 replies so far

View mahdee's profile

mahdee

3553 posts in 1233 days


#1 posted 08-04-2015 03:08 PM

Hmmm, a picture would be nice. You can see if you can order the part.

-- earthartandfoods.com

View mahdee's profile

mahdee

3553 posts in 1233 days


#2 posted 08-04-2015 03:10 PM

here is one site.

-- earthartandfoods.com

View rwe2156's profile

rwe2156

2198 posts in 946 days


#3 posted 08-04-2015 03:34 PM


Hmmm, a picture would be nice. You can see if you can order the part.

- mrjinx007

Can’t do that. The break is in the cast iron head.

The break out is where you see a couple of the indexing holes.
I’ll get a pic later today to clarify.

-- Everything is a prototype thats why its one of a kind!!

View BobAnderton's profile

BobAnderton

219 posts in 2256 days


#4 posted 08-04-2015 03:38 PM

JB Weld or similar epoxy/metal composite. MetalTech EG is another that I’ve used a lot. This will work especially well if you can back up the repair on the inside of the housing with some 1/4 inch steel plate that you epoxy across the break, for example. I broke the cast iron base of a floor standing belt/disc sander and repaired it this way and it’s still going 10 years later.

-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw

View RogerM's profile

RogerM

764 posts in 1865 days


#5 posted 08-04-2015 04:55 PM

JB Weld

-- Roger M, Aiken, SC

View TomB19's profile

TomB19

51 posts in 1434 days


#6 posted 08-04-2015 09:44 PM

Cast iron can be welded, although it is difficult. I would take it to someone with experience with cast iron, if you go this route.

I’ll second the epoxy repair, although it probably won’t do well in a vibrating environment.

You may also wish to bandsaw out the “J” and “T” on that name plate so you can epoxy them back on in reverse order.

View rwe2156's profile

rwe2156

2198 posts in 946 days


#7 posted 08-04-2015 09:57 PM

Still interested to know how important it is to have an indexing pin.

But here are the pics of my stupidity:

Here’s the piece fit into the head:

-- Everything is a prototype thats why its one of a kind!!

View johnstoneb's profile

johnstoneb

2146 posts in 1638 days


#8 posted 08-04-2015 10:11 PM

Use it as is if you ever find you need an indexing pin. You can take things apart and get that repaired it will take quite a bit of machining or replace the housing, That housing is $300 on ereplacement parts
You could epoxy that part in if you wanted but it’s really not necessary. The epoxy won’t do anything structurally just hold the broken piece in place,

-- Bruce, Boise, ID

View mahdee's profile

mahdee

3553 posts in 1233 days


#9 posted 08-05-2015 12:17 AM

I think johnstoneb is right. You would have to take that to a welder and then a machine shop to get it fixed. Another thing you can do is to weld a ring around it and drill and tap your three holes.

-- earthartandfoods.com

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com