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Old 11-07-2013, 06:57 PM   #1
Ross6860
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Default Starting Over - Cracked Block

Well, there goes a lot of sweat and a few bucks.

Dis-assembled the 59A that came with the '36 I have and it's worth what I was afraid it was worth. Scrap.

Cracked cylinder. So it's off to look for another. The crank is .040"/.040" under, too.

At least I got a good cam core and a set of adjustable lifters, oil pan, front cover, a carb, etc.
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Old 11-07-2013, 10:06 PM   #2
bk53
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Default Re: Starting Over - Cracked Block

That's a shame. A good deal can be done today with plug/stitching and sleeves.
Mine has 18 plugs in her now but holds lots of pressure.
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Old 11-07-2013, 10:31 PM   #3
Lawson Cox
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Default Re: Starting Over - Cracked Block

Can't that cylinder be sleeved?
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Old 11-08-2013, 07:34 AM   #4
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Default Re: Starting Over - Cracked Block

I wouldn't write that block off yet. Let's see pics of the crack. Most of those can be fixed very effectively.
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Old 11-08-2013, 09:07 AM   #5
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Default Re: Starting Over - Cracked Block

A crack in the cylinder is the easiest to repair. Sleeve it.
more and more good blocks are hard to come by.
Considering what it took to disassemble the block,I wouldn't throw it out.
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Old 11-08-2013, 12:51 PM   #6
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Default Re: Starting Over - Cracked Block

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I wouldn't invest another dollar in it. Find another, be happy, smile.
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Old 11-08-2013, 04:26 PM   #7
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Default Re: Starting Over - Cracked Block

Im with Kahuna on this.
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Old 11-08-2013, 04:48 PM   #8
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Default Re: Starting Over - Cracked Block

there are a lot of blocks that have been repaired. Even if you find another, try to keep, sell, or repair that one. my 2¢
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Old 11-09-2013, 12:23 AM   #9
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Default Re: Starting Over - Cracked Block

Mine was cracked into two cyls through valve seats stitch lock fixed it with no problems
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Old 11-09-2013, 12:30 AM   #10
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Default Re: Starting Over - Cracked Block

That's the primary reason for dry sleeves. There are 1000's of sleeved blocks out there.That is why it is done. It is a tried and true normal engine repair.

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Old 11-09-2013, 01:24 AM   #11
36 CS
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Default Re: Starting Over - Cracked Block

I disassembled a 36 LB block that I had to drive the pistons out of. It had thin sleeves in all cylinders I took it to the machine shop and they said they could repair most any cracks and valve seats in the flatheads. I bought a restored running chasse from ebay and saved myself much time and money. I kept the LB for a future project.
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Old 11-09-2013, 10:09 AM   #12
Ross6860
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Default Re: Starting Over - Cracked Block

Quote:
Originally Posted by J and M Machine View Post
A crack in the cylinder is the easiest to repair. Sleeve it.
more and more good blocks are hard to come by.
Considering what it took to disassemble the block,I wouldn't throw it out.
I believe the crack has traveled beyond just the cylinder bore. If I can get a photo to show it I'll post it.

I have storage space, so I'll save it for the time being.

Quote:
Originally Posted by Kahuna View Post
I wouldn't invest another dollar in it. Find another, be happy, smile.
I have a line on another 59A, carb to pan. Complete engine minus the distributor. We'll see how this one looks. Price is right.
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Old 11-09-2013, 09:22 PM   #13
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Default Re: Starting Over - Cracked Block

Nothing wrong with sleeves. BUT, if there are cracks that go thru/under the valve seat inserts, I'd be very wary. Yes, they can be repaired. But, if you are building anything more than a stock engine, those repairs may not last. To me, the work is the thing, not the expense. I would always be thinking and worrying about them/it.
To each his own, Just my opinion
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Old 11-10-2013, 11:50 AM   #14
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Default Re: Starting Over - Cracked Block

Quote:
Originally Posted by Kahuna View Post
Nothing wrong with sleeves. BUT, if there are cracks that go thru/under the valve seat inserts, I'd be very wary. Yes, they can be repaired. But, if you are building anything more than a stock engine, those repairs may not last. To me, the work is the thing, not the expense. I would always be thinking and worrying about them/it.
To each his own, Just my opinion

We've never had a failure with crack repairs with the valve seat cracks or any other areas we've repaired in over 20 years as most all Model A's Model T's and hard used V8's have cracks in them.
The day is going to come and it's rapidly approaching that there'll be no more good old cores available;cost of scrap has cleared out many junkyards locally.

We're located in the NorthEast and it's normal to see cracked blocks especially after 80 plus years of use so we don't have extra crack free blocks to source from so only logical alternative it to repair them.
http://www.jandm-machine.com/metalStitching.html
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