Complete lack of trust in previous shop's block work...
#873701
12/07/10 06:39 PM
12/07/10 06:39 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Write it off to paranoia or just having too many experiences w/ paying machine shops for "quality" work and not getting what I've paid for. Regardless, I hauled my "ready to assemble" 448 block done by another shop some years back in a different part of the same state (not close to me) over to the local shop that did the freshen-up work on my 452's block this summer. I asked them to give it the and double-check the work. 1. Check bore sizes, concentricity, and verify the hone job was actually done WITH torque plates (been burned on that one already). 2. Check the aluminum main cap installation to verify main bore sizing and concentricity. 3. Correct the CRAPPY chamfer job done on the top of the bores that looks like my 6-year old did it w/ a rat-tailed file. 4. Remove what's left of the old dipstick tube that's still stuck in the block. There are actually a few more items on the list I provided w/ the block, but you get the idea. Until I find out what the story is on this, I'm not making any more moves towards building anything w/ this block. EDIT: I'll also mention that I do own the tools required to do a good bit of this checking, but do this type of stuff so infrequently that I'm looking for an experienced hand to do the measurements.
Last edited by Blew My Budget!; 12/07/10 06:47 PM.
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Re: Complete lack of trust in previous shop's block work...
[Re: AndyF]
#873703
12/07/10 07:38 PM
12/07/10 07:38 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Not only do you pay for the machine work, but sometimes the actual parts are ruined too.
Example: The block in question has already been bored .040" over since they said it didn't clean up at .030". And they've already done the install on the old-style aluminum main caps. If the bore work is crap, I'm still sitting on a set of .040" pistons, but the block "could" be taken out again. But what happens if they hosed the main cap installation? Does the block automatically become a boat anchor?
This stuff drives me effing nutz sometimes.
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Re: Complete lack of trust in previous shop's block work...
[Re: AndyF]
#873705
12/07/10 07:44 PM
12/07/10 07:44 PM
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Joined: Jan 2003
Posts: 20,179 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,179
Park Forest, IL
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Went through that a couple years ago with "The best Mopar guy in Chicago". 1. Put one rod/piston into block-Piston stuck above deck .250". Guy ordered wrong pistons. Took 4 weeks to get right pistons. 2. Decked the block with the alignment dowels still in the block. Had to drill them out. 3. Went to install cam- Bearings so tight cam would not go in. (He had the cam specifically so he could fit the bearings) Trust no one.
"Everybody funny, now you funny too."
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Re: Complete lack of trust in previous shop's block work...
[Re: earthmover]
#873706
12/07/10 07:48 PM
12/07/10 07:48 PM
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Joined: Feb 2007
Posts: 5,080 organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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this is why i've invested in my own measuring equipment- been burned! i've found a hole in the wall one man shop who knows i double check his work, and he puts everything exactly where i want it. i love this guy!
for what is the good life if not doing things thoughtfully?
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Re: Complete lack of trust in previous shop's block work...
[Re: BradH]
#873707
12/07/10 09:43 PM
12/07/10 09:43 PM
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Joined: Jul 2010
Posts: 2,091 Delray beach, Florida
Performance Only
top fuel
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top fuel
Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
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nothing surprises me anymore. i just finished checking and correcting a block for another Moparts member. he already had the block to two other shops. the first one messed it up and by measuring things himself, he saw some disturbing things. he took it to a second shop to fix the first shops mistakes. to say he was disappointed when he got it back would be an understatement. when i started checking things i found the cylinders were hour glass shaped as much as .0045" the decks (which were already cut twice) were off front to rear by .005 and side to side by almost .007" to make matters worse, they weren't machined 45 degrees to the crank centerline. what a mess. it's amazing what shows up when you put a block in a CNC machining center. the nice thing is it sure makes things easier to correct.
machine shop owner and engine builder
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Re: Complete lack of trust in previous shop's block work...
[Re: BradH]
#873708
12/07/10 09:49 PM
12/07/10 09:49 PM
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Joined: Jan 2003
Posts: 16,925 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Quote:
1. Check bore sizes, concentricity, and verify the hone job was actually done WITH torque plates (been burned on that one already).
I had my 511 CID low deck done at Weston Machine in NJ. I was so happy with the result, I took my old 471 block to them a few years ago to have the same aluminum cap treatment and give the bores a fresh hone for new rings.
When I picked it up, they said; "Was this honed with torque plates originally?". It didn't appear so when they freshened it. The previous shop that did it seemed fine, and I trusted them, but that made me wonder if they actually had a BB Mopar torque plate...
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Re: Complete lack of trust in previous shop's block work...
[Re: Performance Only]
#873710
12/07/10 09:53 PM
12/07/10 09:53 PM
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Joined: Dec 2006
Posts: 3,395 Pa
Hot 340
master
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master
Joined: Dec 2006
Posts: 3,395
Pa
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Quote:
it's amazing what shows up when you put a block in a CNC machining center. the nice thing is it sure makes things easier to correct.
True, but there are putzs running them too Dan. Some people can screw up anything with anything.
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Re: Complete lack of trust in previous shop's block work...
[Re: dusturbd340W5]
#873714
12/07/10 10:48 PM
12/07/10 10:48 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
my guy gave me 1
that really sounds weird
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Re: Complete lack of trust in previous shop's block work...
[Re: Quicktree]
#873715
12/07/10 10:50 PM
12/07/10 10:50 PM
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Joined: Jan 2003
Posts: 4,616 Kissimmee Fl.
dusturbd340W5
master
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master
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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maybe to you but he asked a ? and I answered that ?
70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake
best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
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Re: Complete lack of trust in previous shop's block work...
[Re: Quicktree]
#873716
12/07/10 10:50 PM
12/07/10 10:50 PM
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Joined: Dec 2006
Posts: 3,395 Pa
Hot 340
master
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master
Joined: Dec 2006
Posts: 3,395
Pa
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Quote:
Quote:
my guy gave me 1
that really sounds weird
oh man. just stop it
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Re: Complete lack of trust in previous shop's block work...
[Re: MoparBilly]
#873720
12/08/10 12:20 AM
12/08/10 12:20 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Ignorance is bliss I guess...
In my case, I think it's how I got into this situation in the first place starting back around 1998.
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