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Engine Stand for 671 Detroit Diesel


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  #1  
Old 08-12-2019, 06:29:04 PM
Vanman Vanman is offline
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Default Engine Stand for 671 Detroit Diesel

I'm getting ready to overhaul my Detroit, and I am looking for a suitable engine stand. If anyone knows of one in Southern California, for reasonable money (looking at used), I'd be grateful for the lead. It doesn't have to be pretty, just functional.

Besides being of sufficient capacity, is there anything in particular I need to look for to bolt my engine up to one of these?

Think this one might work?
https://losangeles.craigslist.org/lg...955051875.html

Thanks,
Keith
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Old 08-12-2019, 06:57:14 PM
pegasuspinto pegasuspinto is online now
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Default Re: Engine Stand for 671 Detroit Diesel

IMHO the base on that one is way, way too small. I've had a small engine try to go over when the stand couldn't balance it. If a 6-71 starts to tilt, just run for your life.
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Old 08-12-2019, 08:24:10 PM
Power Power is offline
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Default Re: Engine Stand for 671 Detroit Diesel

I was going to say what Pegasus told you. In my opinion, base has to be at least as long as engine, and at least 2x width on each side. You KNOW that engine is VERY heavy - over 1 ton! No way you are stopping it if it starts to go when you are straining on a stuck bolt.

I prefer something rated double weight of what I am working on That way, if I have to jump on a cheater, the impact load stays well below safe load.

Perhaps you can weld up your own? 6" x 4" x 1/2" with gusseted corners is where I would start. If you want to make your own, there are people here who can fine tune my rough calculation-- Just ask.
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Old 08-12-2019, 09:53:09 PM
Vanman Vanman is offline
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Default Re: Engine Stand for 671 Detroit Diesel

I think the one in the ad is bigger than it appears, but I have requested measurements from the seller to be sure. A big straight six gets mounted sideways in a stand, rather than end on as with a car or pickup engine. So one concern is having enough clearance to turn the engine over to work on the bottom...
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Old 08-12-2019, 11:49:36 PM
Heins Heins is offline
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Default Re: Engine Stand for 671 Detroit Diesel

Heavy duty engine stand
I tried to post a thread of an engine stand, but it didn't work. I may try again.

Posted 3/6/2019 06:50 (#7363725)
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Old 08-13-2019, 03:33:35 PM
Vanman Vanman is offline
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Default Re: Engine Stand for 671 Detroit Diesel

Here's the seller's reply to my query:

"Hi Keith the stand is 48 long x 39" wide from rotational shaft to floor 40" shaft to frame 32" had this stand custom made for rebuilding

lrfyl engines 855 cummins, l10, m`11 cummins it will handle 3000 lb engines Thanksf your interst Larry"

Definitely bigger than it first appeared in the photos. If it can swing an 855, it should work for a 671. I'll get some measurements off my engine to check.

Keith
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Old 08-13-2019, 06:34:30 PM
Tracy T Tracy T is offline
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Default Re: Engine Stand for 671 Detroit Diesel

just keep a eye on things, i have a heavy duty engine stand thats never given a problem even with a fully dressed big block chevrolet on it, bent it with a 4 banger! 4 cylinder ford tractor diesel, and that was without the castiron oil pan, head and anything attached to the head with the cherry picker hooked to it too! oil pan got put on in the floor along with the head, intake, exhaust, and turbo.
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Old 08-13-2019, 06:48:51 PM
Heins Heins is offline
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Default Re: Engine Stand for 671 Detroit Diesel

Here are pictures of an engine stand built out of a combine final drive.
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Old 08-13-2019, 09:07:19 PM
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Default Re: Engine Stand for 671 Detroit Diesel

My dad never had an engine stand. He didn't see any advantage to it other than height. Dad and I used to put bolts in the bellhousing and stand it up on the bolts. You can adjust the bolts as needed to keep from rocking. I've rebuilt many engines this way. To me it's easier to install the crank and heads because you don't have to pick these heavy parts up so high and set them down gently.
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Old 08-14-2019, 08:37:11 AM
Peter Holmander Peter Holmander is offline
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Default Re: Engine Stand for 671 Detroit Diesel

My 10 cents says that the stand for sale on Craigslist should be fine. It looks plenty rugged to me. The mounting plate on it looks like its 3/4 inch thick. It goes without saying, anytime you mount a heavy engine in a stand, use extreme care. If concerned about tipping, it's easy enough to put a jackstand on the unsupported end underneath to act as a safety if one is pulling on wrenches on the engine.
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Old 08-19-2019, 07:03:35 PM
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Default Re: Engine Stand for 671 Detroit Diesel

We now have an engine stand to use for overhauling the Detroit Diesel to transplant into the three axle '55 Crown. It is a BEAST. The photos do not do it justice. The fellow we bought it from was just the kindest, sweetest old man. Said he worked for Cummins for 30 years, then on his own for 8 years, then retired to restoring his classic cars. Said he'd worked on a lot of NH Cummins back in the day. He had the stand custom built, and it has had 855s, and later engines, L10? and M11? on it. I think that's what he said.

Keith
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Old 08-19-2019, 07:35:32 PM
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Default Re: Engine Stand for 671 Detroit Diesel

Good looking stand. It will do the job. OTC makes adapter plates. You want to attach the plate to the block opposite the blower mounting pad. ALClick image for larger version

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Old 08-20-2019, 01:16:43 AM
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Default Re: Engine Stand for 671 Detroit Diesel

While I had been searching for an engine stand, I did see exactly that engine stand adapter. But his price is for someone who doesn't have his engine sitting next to a machine shop.

https://sandiego.craigslist.org/ssd/...941133617.html

And it still needs an adapter between it and the engine stand.

Here's one that appears to be all in one. Still a lot of money, but a lot more for the money too. If all I had to do was drill it to fit my hub, it might be worth it.

https://www.ebay.com/itm/Detroit-Die...AAAOSw8oFdA1rn
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Old 08-20-2019, 01:48:29 AM
The Diesel Doctor The Diesel Doctor is online now
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Default Re: Engine Stand for 671 Detroit Diesel

I have used that Kent Moore adapter J 33850. It would be hard to have one built like that for $300. After your done with your rebuild perhaps you could rent the rig out to recover some of the cost. AL
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Old 08-20-2019, 05:23:13 AM
Tracy T Tracy T is offline
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Default Re: Engine Stand for 671 Detroit Diesel

its hard to tell in the pictures but it looks like some of the welds were a little on the cool side (didnt penetrate) other than that it certainly looks strong enough! even if thats the case nothing a welder cant fix, NICE SCORE!
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Old 08-20-2019, 12:03:03 PM
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Default Re: Engine Stand for 671 Detroit Diesel

For the heck of it I offered $200 for the adapter. The seller countered with $220, including shipping, so I'm really happy about that. Will have to adapt it to my engine stand hub, but that will be MUCH easier than fabricating the entire adapter. Will have to check out all the welds.

Keith
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Old 08-21-2019, 09:03:45 PM
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Default Re: Engine Stand for 671 Detroit Diesel

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ID:	341989 Kent- Moore J 9389-04 engine stand maxed out with a 3412 CAT. Be sure to use grade 8 bolts to attach the adapter plate to the block. AL
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Old 08-22-2019, 01:00:27 AM
Vanman Vanman is offline
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Default Re: Engine Stand for 671 Detroit Diesel

Wow. I saw some of those giant stands while I was looking for mine. Saw some rated for 6,000#! Was trying to figure out what they'd be used for. I thought earth moving equipment, but of course marine as well.

I believe the adapter I'm getting is new old stock, and includes the hardware as well.

Keith
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Old 08-28-2019, 07:58:18 PM
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Default Re: Engine Stand for 671 Detroit Diesel

Engine stand adapter arrived today, undamaged. It's nice shipping something that can't be damaged.

This thing is HEAVY lol!
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Old 08-28-2019, 08:19:21 PM
uglyblue66 uglyblue66 is offline
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Default Re: Engine Stand for 671 Detroit Diesel

Forgive me as I am not real sharp on details of overhauling engines of this size but I was always under the impression those big deisels could be overhauled "In frame".
That is a monster of a engine stand.WOW,you probably had to set it in the shop with a fork lift!
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