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Front crank dampener for a 8070

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8070nc View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Topic: Front crank dampener for a 8070
    Posted: 26 Jan 2023 at 6:28pm
Does anyone know where I can get one new
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2023 at 6:30pm
AGCO doesn't have them ?? isn't there a brand name stamped on your old one ??
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2023 at 7:24pm
Thanks Doc. My dealer says they are no longer availiable. I havent taken it off yet so i havent examined it for a name
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2023 at 7:40pm
I'd heard the 8050 and smaller rubber damper wasn't available, but had not heard the fluid damper to the 7080/8070 wasn't as well.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MikeKroupa Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2023 at 9:09pm
Doc is right there is manufactures name/part number stamped on them. I also think either a Detroit 4-71 or 6-71 used the same fluid dampener. Good Luck 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2023 at 9:55pm
Fliudamper's 4-71 DDA appears to have same demensions. I never chased the specific measurements as I found a NOS in WA. Worth investigating if they're priced similar to their other products. Both my original and replacement have names stamped (different) and neither are found by google.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Alvin M Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2023 at 8:23am
Dale manufacturing used to rebuilt them   503-364-8685 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2023 at 9:18am
Thanks everyone. Gives me some rabbit trails. Ill see which one get me there. Ill post when I find a solution. Might help someone else
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2023 at 9:44am
Dale Mfg rebuilds the rubber dampers, because he just did one for me. I've never understood him to rebuild viscous dampers, but maybe he does, but I don't think so.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2023 at 11:59am
I talked to Dale Mfg. They only do the other style. He did tell me what happens to fliud damper is the fluid wears out and the inner weight binds so it stops functioning. I have found a NOS ill be good on this tractor. I do thank everyone for their help
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Allis dave Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2023 at 12:43pm
That's concerning if there are no longer options for these...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2023 at 4:06pm
Im not sure but im becoming convinced that a damper off a 71 series detroit is the same thing
In time I will find out for sure and iI will post it for sure
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ron(AB) Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 12:33pm
I checked my dealer and they also said - "no longer available" and "none in stock" at any dealer!

The dampener is on: 8070, N+R series combines (with the allis engine) and the small 4WD tractors too...

Has anyone found a crossover?
405, 7000, 7050, 8050, 8070, L3, 2300 & 2600 disk
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ron(AB) Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 12:55pm
Reliance is showing the part on their website and Jen sales (which just resells Reliance parts?).

just under $1200...
405, 7000, 7050, 8050, 8070, L3, 2300 & 2600 disk
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC7060IL Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 4:14pm
Could one of these dampener be what you’re looking for?

https://klmperformance.com/products/detroit-diesel-series-71-crankshaft-damper


Or?


Edited by AC7060IL - 30 Jan 2023 at 6:15pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 4:29pm

This is a new one from Allis. There is one that goes on a 71 series detroit that appears to be the same as the ones on the allis engines. When I get the old one off Im going to find one from the detriots and find out. Ive got another 8070 that needs the engine built so ill neef another one
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 5:09pm
Dang! That does look exactly like the 71 series detroit one I'm watching on ebay. I'm betting they are the same. 
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 5:17pm
I think you are right Ed
1984 80780
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DES 300 with 25000 engine
616 tractor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2023 at 7:25pm
The one off my 85 was a Stahl. The replacement is some other name. Haven't looked at the "new" tractor(83) to see what it is. Niether are Vibratec/Fluidamper brand.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2023 at 11:31am
Original on 85 8070 was Stahl. Replacement is Metaldyne. 83 8070 has a Hydraulics Houdaille. Seems to have been a few vendors. Be nice if there was a way to test one for "good" or not. Don't think thers a method.

Edited by SteveM C/IL - 31 Jan 2023 at 11:34am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2023 at 8:30pm
Use the biggest one you can find they will fit bolt pattern. Can't get one too big.           
         MACK
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2023 at 9:50pm
Many years ago, I had two bad ones on a 7580 and 7080 within 6 months of each other. On each tractor, if you ran the RPM's at 2500 to 2600 there was an awful rattling in the front end of the engine, like timing gears were bad. Above 2600 or below 2500 the noise completely went away. Both tractors had welded A/C and alternator brackets, so this had been going on for a while. Removed the old damper the noise was still the same. Installed a new damper and the noise was GONE. We got the 7580 with the engine locked up because the oil pump mounting bracket was broken allowing the oil pump to disengage the drive gear from the crankshaft gear. Repaired the engine and reused the old damper (we'd never heard it run before) and had this terrible noise at that 2500-2600 range. Finally figured out what broke the oil pump mtg bracket was the same thing that broke the A/C and alternator brackets...a bad fluid damper.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Posted: 01 Feb 2023 at 6:49am
Great thread going on here, very valuable information. Thanks to all of the contributors.
Darrel
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Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 01 Feb 2023 at 7:26am
If it is indeed the same as the Detroit Damper, I can get new ones from Interstate McBee. Well, they're currently out of stock though. So AGCO not having them might not be a problem lol! 5177763 is the Detroit number I've researched some. I would like to put one on my 210 puller and get the original one off. 

Edited by injpumpEd - 01 Feb 2023 at 7:28am
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin in WA Quote  Post ReplyReply Direct Link To This Post Posted: 01 Feb 2023 at 9:42am
  Years ago I do remember Clevite listed them the same as some Detroit 71 series.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peterson Quote  Post ReplyReply Direct Link To This Post Posted: 02 Feb 2023 at 6:43pm

This is the one I plan to use on our 8050 that will be getting a counterbalanced crank. It's a 6-71 detroit balancer. Bolts right up. 12 3/8" in diameter. Based on my measurements, it "should" clear everything.
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peterson Quote  Post ReplyReply Direct Link To This Post Posted: 02 Feb 2023 at 6:46pm
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BKarpel Quote  Post ReplyReply Direct Link To This Post Posted: 02 Feb 2023 at 8:45pm
Can you spin test a fluid balancer? I am using a orange color balancer on pulling tractor. Think from N5 Gleaner.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 02 Feb 2023 at 9:15pm
Peterson,I can't read it all but see the word Houdaille. The one on my 83 has the same little balance weights welded in bore.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 02 Feb 2023 at 10:49pm
Cannot spin test a harmonic damper. It controls harmonic vibrations as they occur at certain engine speeds and loads. Not like balancing a tire. Any engines crankshaft rotates in pulses from compression strokes to firing strokes, etc,etc. So, the floating donut ring inside the fluid damper is suspended in a silicone fluid that allows the donut to start/stop continuously as the outer shell rotates to control harmonic vibrations. Rubber dampers do the same thing. When the silicone gets old and stiff, or leaks out, the damper is ineffective.

Edited by DrAllis - 03 Feb 2023 at 5:51am
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