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'31 Cylinder Block


Tom M

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Got home from work last night and had to messages from Randy at HARTS. My engine in almost there all they needed was some clarification on some dimension for the rods and it will be ready for pick. Where am I going to find the room to storage it <img src="http://forums.aaca.org/images/graemlins/crazy.gif" alt="" />. I should have built a bigger garage.

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Randy,

I can take it. Poke as hard as you can <img src="http://forums.aaca.org/images/graemlins/tongue.gif" alt="" />

Maybe I need to push all that yard stuff back out to the yard from the other garage so I can store more important stuff. <img src="http://forums.aaca.org/images/graemlins/grin.gif" alt="" /> Hopefull wifey doesn?t see me doing that <img src="http://forums.aaca.org/images/graemlins/wink.gif" alt="" />

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Jerry,

Thanks for your reply early on.

He should be calling with final numbers for the work he has done. I may bring him the lower half but that depends on what this final number will be. I think I will still be ahead compared to the last shop I had it. College of hard knocks here on that shop.

I am glad to hear yours is purring and will be on the road soon. I have a long way before mine is. <img src="http://forums.aaca.org/images/graemlins/crazy.gif" alt="" />

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  • 3 weeks later...

Well the check went out in the mail yesterday to Harts he will shipping the engine out on Monday.

With the money I had to pay to pull the motor from the other shop, shipping and the work that Randy at Harts did it was well under what the other shop would of charged me.

Will keep you all informed on how she runs once I get her are put back together. It may be awhile thou.

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Guest 1956Packard

Tom:

It's none of my business, but do you mind mentioning what you paid for the Harts re-build (without the first shop's charges added in)?

Geoff

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Geoff,

I don't mind. I feel it is worth letting others know that way they have an idea for their own projects.

He just did the upper half, New Pistons and Rings, Fixed the cracks, Sleeved Cylinders, New Valve Guides, New Valve Springs (Even thou I had bought new ones a few years back but since they where coiled bound due to the slots cut wrong in valves we decided to go with new ones) Re-poured the Babbitt for the Rods and whatever else he had to do. I have not received the itemized receipt yet. The total cost for his work was $4,050, +$200 for shipping it back to my house. The shipping was cheaper then us driving out there.

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No just the upper half. Was that price reasonable?

Align boring? Is that procedure done with lower half installed? I have heard of the term but have only rebuilt V-8?s in the past and don?t recall Align boring them. Is that just for straight Eights? Did I mess-up not sending them the lower half?

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Guest 1956Packard

Here's where my engine building inexperience will shine!!

I would have thought that the re-builder would require at least the crank in order to accurately mill (bore??) the new babbits on the rods. Maybe someone can chime in on how this would be done :ie grind the crank to a common size and then bore each rod to that.

I also would have thought (and I did not read back to refresh my memory on this topic) that if the babbit required re-doing on the rods, that likely the mains were in similar condition and the re-builder would recommend they be done at the same time.

Again, I'm about as far from an expert on this as you can get (and I'm not spending my money) but I likely would have gone that exra mile and had the 'lower half' looked at too.

My 2 cents - your wheelbarrow of cash.

Geoff

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Guest imported_Speedster

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">

Align boring? Is that procedure done with lower half installed? </div></div>

Align boring is done to a bare crank-case (or block on a modern engine) with nothing installed except the main caps. A large boring machine is used to correct any warpage in the crank-case, where the crankshaft goes.

Personally I wouldn't do anything to the parts in crank-case until I knew there was a problem there. Fixing something when it Doesn't need it, can sometimes Cause bigger problems. <img src="http://forums.aaca.org/images/graemlins/crazy.gif" alt="" /> Especially when doing things like Babbit-bearings, which few people alive today really understand. <img src="http://forums.aaca.org/images/graemlins/crazy.gif" alt="" />

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I agree. Not sure how he rebabbited the con rods without the crank unless he poured them somewhat undersized so they can be bored once the crank is turned. I would definitely have the crank and mains looked at before you reassemble the engine. Turning a Packard crank of this vintage is a chore in that the counterweights have to be removed first, not an easy task. They angle in over the con bearing journals making it impossible to turn the crank with the weights in place. At least I've not heard of anyone able to do so. If you have to have the crank turned and the 9 main bearings poured and bored you're likely looking at another $1000-1500 but it's been a couple years since we had one done.

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On a babbitted engine the align boring procedure turns the newly poured main bearings to their final size to fit the crank and insures that all 9 of the mains are in a straight line. Don't fix it if it isn't broken is fine advice if you know for a fact that the mains are in good shape. Remember that with new pistons, rings, valves etc you have returned the compression presumably to what it was when the engine was new (or more) and will likely be tempted to drive at a higher speed than when this engine was new. Are those 76 year old mains up to the task?

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<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Turning a Packard crank of this vintage is a chore in that the counterweights have to be removed first, not an easy task.</div></div> Others have said the same thing that is why I did not drop the crank. I did have good oil pressure before I disassemble her.

For the rods I measured the crank journals in three places. Side it side, up and down, front and back recorded the numbers and gave them to the shop. The shop measured the rods and said they where within thousands of an inch. He had to re-pour the babbit because when I was dropping them some hit the crank and chipped the babbit.

Hopefully all will be well?

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  • 1 month later...

Well Guys,

Yesterday during breakfast with my friends we were talking about the Straight 8 engine in my car but my one friend who has not seen it disassemble couldn?t picture what this monster looks like so they came over after we ate. They were checking over the crank and my one friend goes you need to have this thing polished. He said that because when he dragged his finger nail over the journal it would catch. Also since I did a bone head thing by leaving the lower have in car before sending of to blast shop they suggest I yank it I and have it clean the right way. Looks like a call to Harts is in order today.

I should have known better and listen to you all here. Live and learn.

Anyone have an empty trailer heading from Chicago to the Fort Wayne/Cecil Ohio area?

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