let's see your craftsman block grinders

[PacificaVette]

I need one eye shield, also.

 

[cajunfirehawk]

FYI - I added links to a good series of YouTube videos

Speaking of videos, Dr Block what is your take on this video on bearing removal and replacement, any issues doing it this way for those without the tools such as you use?

 

[WWShop]

I posted this in the other Craftsman block thread, but figured I might as well post here too. $50 for this 397.19511. Runs great.

 

[exmaxima1]

I posted this in the other Craftsman block thread, but figured I might as well post here too. $50 for this 397.19511. Runs great.

You should also post it on the Pre-Block grinder thread, since that what it looks like.

https://www.garagejournal.com/forum/showthread.php?t=339921&highlight=Pre+block+where's+love

I'm not sure the age of your pre-block, but the amperage is far different from mine. We both have 1/3hp models, but yours is only 3.5 amps vs 5.5 for mine. Is there any date anywhere on it? Maybe your crowntop logo makes it newer??

 

[WWShop]

You should also post it on the Pre-Block grinder thread, since that what it looks like.

https://www.garagejournal.com/forum/showthread.php?t=339921&highlight=Pre+block+where's+love

I'm not sure the age of your pre-block, but the amperage is far different from mine. We both have 1/3hp models, but yours is only 3.5 amps vs 5.5 for mine. Is there any date anywhere on it? Maybe your crowntop logo makes it newer??

I initially thought it was a pre block, and I posted it on the craftsman block whats the fuss thread, and Torqueman chimed in, and thought it was an early block, not pre block. The little information i found dates it to 1961. I was a little disappointed in the lower amperage but still powerful.

 

[torqueman2002]

Speaking of videos, Dr Block what is your take on this video on bearing removal and replacement, any issues doing it this way for those without the tools such as you use?

The main point when removing & installing bearings, is to put the force on the inner race, in as much as practical/possible. Except of course, if the bearing being removed will be replaced.

He does this by using the wood blocks and readjusts them during the install.

The only things I see, at the risk of picking nits:

• It appears he works on the grinder with it plugged in
• The spark arresters and tool rests are not properly adjusted to 1/8" clearance
• He uses gloves
• This process is good for motors with start-up relays, rather than ones with a centrifugal switch between the bearing and rotor.

Addendum - Here's a post by McBrownie, showing how he uses a WorkMate.
https://www.garagejournal.com/forum/showpost.php?p=4403268&postcount=3346

 

[torqueman2002]

I initially thought it was a pre block, and I posted it on the craftsman block whats the fuss thread, and Torqueman chimed in, and thought it was an early block, not pre block. The little information i found dates it to 1961. I was a little disappointed in the lower amperage but still powerful.

I am coming to the conclusion that CM pre-Blocks and Blocks from the late 50's and early 60's share a lot of similarities.

This is member 'Sam' ? 1/4-HP pre-Block m-115.19500 - 12/60. Beautiful restore!

This is firemanast's 1/4-HP m-397.19501 - 1962. Another beautiful restore.

 

[WWShop]

Just an observation here but I noticed that the eyeshields on my 397.19511, that I just purchased, are a little bigger than later model 1/3 blocks. Also, mine has the rear exhaust, which I haven't seen on a 1/3 either.

 

[exmaxima1]

Just an observation here but I noticed that the eyeshields on my 397.19511, that I just purchased, are a little bigger than later model 1/3 blocks. Also, mine has the rear exhaust, which I haven't seen on a 1/3 either.

The other 1/3hp Pre-Blocks, like mine, had them as well. My eyeshields are also the same size.

 

[torqueman2002]

Just an observation here but I noticed that the eyeshields on my 397.19511, that I just purchased, are a little bigger than later model 1/3 blocks. Also, mine has the rear exhaust, which I haven't seen on a 1/3 either.

The other 1/3hp Pre-Blocks, like mine, had them as well. My eyeshields are also the same size.

Interesting.

As you point out, WWShop, there are 2 different size metal framed eye shields that CM used on pre-Block and Block grinders. I'm not sure what the model or mfg date specifics are, however.

I haven't seen any 1/4-HP pre-Blocks or Blocks with exhaust ports.

 

[notlob]

Very nice 1/2 hp commercial in south SF bay - $60.

https://sfbay.craigslist.org/sby/tls/d/bench-grinder-hp-craftsman/6238819663.html

No affiliation yada yada

 

[stonesfan68]

You guys are such a bad influence. I sure didn't need a third block grinder, but for $20...





It purrs like a kitten despite the rusty patina. The grinder was bolted to a wooden workbench in a garage with no climate control here in Houston. One of the ladies at the sale said her father installed it, "...way back when, so long ago I can't remember."

One of the eye shields is broken, but the quench tray and other parts are intact.

It is a 1/3 HP, model 397.???? The label is faded. Any guesses?

I may part this one out, I'll have to see. I'm running out of places to hide them from Mrs. Stonesfan68.

 

[Zeeman]

I only have two, but want/need more. Nice price Stones.

 

[PacificaVette]

It purrs like a kitten despite the rusty patina. The grinder was bolted to a wooden workbench in a garage with no climate control here in Houston. One of the ladies at the sale said her father installed it, "...way back when, so long ago I can't remember."

One of the eye shields is broken, but the quench tray and other parts are intact.

I may part this one out, I'll have to see. I'm running out of places to hide them from Mrs. Stonesfan68. [/QUOTE]

If you're parting it out, I'd like to buy the one good eye shield.

 

[cajunfirehawk]

JZiggy get back with anyone wanting block parts? I sent him a PM but nothing

 

[torqueman2002]

CL pickings in SE Michigan have been 'not so great' lately.

There are several 1/3-HP Blocks at eBay prices.

I was surprised to see this complete 1/2-HP guy listed at a great price, and brought it home.

And to top it off, the seller tossed in a CM die grinder for $5 more.

 

[JZiggy]

JZiggy get back with anyone wanting block parts? I sent him a PM but nothing

Sorry guys, got a little busy around here. I mostly have housing and motor parts, not a lot of accessories. Let me get some pictures and post them up soon. Sorry for the delay

 

[WWShop]

I bought a block several days ago, that I thought was a pre block, but Torqueman confirmed it was an early block model. Well, last night I saw this pre block on CL, and for $35, I ventured out this morning to go pick it up. The tool rest on the right was modified at one point but the grinder is complete. Definitely needs new bearings though.

 

[Rick B.]

Question: what does one do with a box full of extra round-top and flat-top parts??

I could use a pair of side covers for my 1/2 horse if they aren't too pricey.


View media item 71645View media item 71642

 

[McBrownie]

Very nice 1/2 hp commercial in south SF bay - $60.

https://sfbay.craigslist.org/sby/tls/d/bench-grinder-hp-craftsman/6238819663.html


No affiliation yada yada

Grab it! The lamp alone goes for $50. Oh, and it's a pretty grinder too.

 

[stonesfan68]

It is a 1/3 HP, model 397.???? The label is faded. Any guesses?

I managed to hold the label in the light just right to discern that the model number is 397.19391. I've started the clean up and so far so good.

 

[torqueman2002]

I managed to hold the label in the light just right to discern that the model number is 397.19391. I've started the clean up and so far so good.

I believe this is jziggy's 1/3-HP Block.

 

[larryq]

Could someone advise me on what you're using for cord strain reliefs when you rebuild your grinders? I have one like this that's almost ready to go:

View media item 71645
..but I'm not sure what brand/type of strain relief to use for the cord? Thanks!

 

[exmaxima1]

Could someone advise me on what you're using for cord strain reliefs when you rebuild your grinders? I have one like this that's almost ready to go:

View media item 71645
..but I'm not sure what brand/type of strain relief to use for the cord? Thanks!

If you are willing to use one of the knock-out holes, you could install a really nice cord grip type relief.

 

[EOC_Jason]

You can probably find one on some junk piece of electronics... Or if you want to be correct order one from like mouser or jameco or similar... Probably surplus sites have them too...

 

[torqueman2002]

Could someone advise me on what you're using for cord strain reliefs when you rebuild your grinders? I have one like this that's almost ready to go:



..but I'm not sure what brand/type of strain relief to use for the cord? Thanks!

There's a brand of strain relief called 'Heyco'.

They're available from Amazon, but in packs of 250 or so. Maybe you can find them at Grainger, McMaster Car, ....

Here's a link with pliers to make R&R easier.
https://www.garagejournal.com/forum/showpost.php?p=6354558&postcount=269

EDIT - You can make your own strain relief, also. Place some shrink wrap on the cord where it will pass through the end frame. Then use tie wraps on either side of the end frame to keep the cord from pulling out and pushing in.

 

[stonesfan68]

The strain relief is available from ereplacementparts.com

http://www.ereplacementparts.com/strain-relief-p-972862.html?osCsid=vv8qraai37cm7hki3r2i7mn8q1

 

[cajunfirehawk]

The strain relief is available from ereplacementparts.com

http://www.ereplacementparts.com/strain-relief-p-972862.html?osCsid=vv8qraai37cm7hki3r2i7mn8q1

@$3 ea, we should all buy 10 and put in our stash...

 

[larryq]

Thanks for the strain relief tips guys!

 

[alinc100]

I was able to get some shop time in and put my latest CBG back together after a disassemble and paint. Dated July 1963.

Before:




After:

 

[cajunfirehawk]

I was able to get some shop time in and put my latest CBG back together after a disassemble and paint. Dated July 1963.

Well done, what color/brand paint did you use and did u do bearings too?

 

[alinc100]

Well done, what color/brand paint did you use and did u do bearings too?

Thanks!! Paints used were Rustoleum Hammered Black and Hammered silver.
I did not change the bearings,I had it disassembled to that point but the grinder ran smooth and bearings seemed quiet,well fitting,etc. In hindsight I didn't even give em a look to see if they could/would be lubricated.

 

[cajunfirehawk]

O M G!!!! a used vintage 1967 CM 1/3 hp block grinder w/brake and sharpening tool fetched over $500 on ebay auction today, has to be some kind of record!
See eBay item number: 272791340121

 

[EOC_Jason]

O M G!!!! a used vintage 1967 CM 1/3 hp block grinder w/brake and sharpening tool fetched over $500 on ebay auction today, has to be some kind of record!
See eBay item number: 272791340121

The starting price was $165 Even that was a little too high IMO...

Guess maybe that model or style had some sentimental value to someone?

 

[bubinga]

Got this one today, From the Found a CL deal thread.
Kind Of sounded like it needed bearings when he 1st turned it on,
But must be the start switch, at full speed, then It's quiet.
I'll post a Video in a day or two.

 

[stonesfan68]

Thanks!! Paints used were Rustoleum Hammered Black and Hammered silver.
I did not change the bearings,I had it disassembled to that point but the grinder ran smooth and bearings seemed quiet,well fitting,etc. In hindsight I didn't even give em a look to see if they could/would be lubricated.

It looks great and as a result I'm using the same colors as you ...the best form of imitation is flattery and all.

 

[Catfishdan]

Here's a before and after picture of a 1974 1/3 hp grinder I picked up for 15 bucks at a garage sale. I actually found this forum while I was hunting for information about it. Thanks guys.

 

[Catfishdan]

Oops. And here's the after picture.

 

[loudog212]

looks really nice. love the dark red

 

[torqueman2002]

Catfish,

Nice transformation.

We (I) would love to see more pictures of the restore and final results.