| Author |
 Topic Search  Topic Options
|
MitchB 
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
 Post Options
 Thanks(0)
 Quote  Reply
 Topic: 6080 FWA vibration after engine replacement
Posted: 11 Apr 2025 at 12:34pm |
We just got our 6080 diesel FWA back from the tractor mechanic we've used for many years. He replaced the engine with a 433 engine from an F2 diesel Gleaner. We had the old pump & injector rebuilt and replaced the radiator. Mechanic also took apart the rear end to fix a leaking seal.
Any ideas what might be causing a bad vibration? The engine sounds good. No blowby or anything like that. We can't use it in the field the way it is right now.
We use this tractor to plant corn & beans, so are getting nervous now that that weather is finally starting to warm up!
Edited by MitchB - 12 Apr 2025 at 9:31am
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
 |
|
Sponsored Links
|
|
|
8070nc
Orange Level Access
Joined: 21 Mar 2019
Location: North Carolina
Points: 560
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 2:21pm |
|
Make sure the popping pressure is correct on the injectors
|
|
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 5:47pm |
|
What do you mean by popping pressure? We sent pump & injector out to a diesel injector service for a rebuild.
Edited by MitchB - 11 Apr 2025 at 10:42pm
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 5:48pm |
|
What do you mean by popping pressure? We sent pump & injector out to a diesel injector service for a rebuild. You think they did something wrong?
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
DougG
Orange Level
Joined: 20 Sep 2009
Location: Mo
Points: 8243
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 5:50pm |
|
Can you explain more of when it does this? Start up - driving- pulling something??? Does it have a cab on it??
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 6:39pm |
|
It's got a cab. Vibration is always there. At startup, idle, going down road. Vibrates the whole tractor.
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 21312
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 6:46pm |
|
Let me take a stab at this with the little information given. It is truly a shaking/vibration?? (and it sure could be) Was the CLUTCH replaced or worked on ?? Probably, I'm guessing. If it's truly a noticeable shake/vibration, I suggest it is in the different clutch assembly. I just went thru this with an old friend who is a retired A-C dealer. He had just replaced the clutch assembly in a tractor be bought with a bad engine and found an engine from an F-2. Same complaint...vibration. I told him what it was and he didn't want to believe it, but trusted my call, as I HAVE SEEN this before. A few days later he called me back and admitted it really was the clutch. His supplier got him a different one. Think about it. That whole clutch assembly and the flywheel must weigh 200 lbs and hangs back there nearly a foot. Everything HAS TO BE PERFECT or there will be problems. There is no such thing as an F-4.
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 6:54pm |
|
Sorry, wife is typing. Was an F2 I think. I think it's the original clutch & flywheel, but will double check with mechanic tomorrow. It was there almost 8 weeks, so hard to remember everything.
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 21312
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 7:07pm |
|
Even if it's the old clutch, that's where the problem is in that area.
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 7:16pm |
|
Okay, sounds like that's right. Will look into it. Possible something went wrong in re-assembly?
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 21312
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 7:37pm |
|
Yeah or dirty assembly or line up dowel pins etc.
|
|
Lynn Marshall
Orange Level Access
Joined: 13 Sep 2009
Location: Dana, Iowa
Points: 2335
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 7:41pm |
|
Did the mechanic use the front plate from the tractor. I think he would have had to, so that the hydraulic pump would work. I wonder if for some reason, the balancer was taken down?? It could have been put back out of time.
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 9:12pm |
|
Wife typing here. Hubby went to bed. If we need to replace the clutch assembly, where would we get that? Is that available from an Agco dealer or do we need to find a used one somewhere? Here in Michigan Allis parts are hard to find!
Someone wondered about the harmonic balancer, but you're pretty sure it's in the clutch? You can feel the vibration when you put your foot on the step.
Thank you.
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 21312
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 9:33pm |
|
Clutch parts and clutch assemblies can and do come from sources other than AGCO. Your repairman needs to be grilled like he's on trial for something. He let this repair job go back to you with a problem that wasn't there before. There is no "harmonic balancer" on that engine and even if there was, we are dealing with vibration/out-of-balance problem, not harmonics. There is a huge difference.
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 10:51pm |
|
Thanks so much for your advice. My husband respects your opinion & will talk to our mechanic about clutch tomorrow.
Flywheel. I know we took one home with a bunch of extra parts from the old engine a few weeks ago, so I'm beginning to think it might've been the one from the original engine. We still have it. That wouldn't have to go back in there, would it?
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
6080fwa
Bronze Level
Joined: 10 Apr 2018
Location: Alberta
Points: 79
|
Post Options
Thanks(0)
Quote Reply
Posted: 11 Apr 2025 at 11:43pm |
The flywheel has to be from a tractor and like Dr says it all has to be 100% or there will be trouble , dont run it with that going on. Also the internal balancer for the crankshaft has to be timed. You can pull the oilpan to check the timing of the balancer if i remember right i think #1 at tdc all dots have to be aligned on gears and the weights inside have to be correct too. Like Dr said dont accept substandard work, they need 2 make it right. I own several of these tractors and its worth the effort to have it fixed right.....
|
|
8070nc
Orange Level Access
Joined: 21 Mar 2019
Location: North Carolina
Points: 560
|
Post Options
Thanks(0)
Quote Reply
Posted: 12 Apr 2025 at 4:06am |
Ill explain my exoerience with diesel injection shops and injector poping pressure. We had a F2 we got new in 1981. Radiator bottom tank developed a split and dumped the coolant. Ruined the engine Mechanic rebuilt it. It vibrated terribly. Took it back off and checked the ballancer timing. It was cirrect. We had had the pump and injectors rebuilt by a diesel injection shop We couldnt figure out why it vibrated so bad. Finally i pulled the injectors and checed popping pressure. They popped at 1400 psi instead of 3800 or whatever they are suppused to pop at effectively injecting way too early. By the time we figured out the problem the engine was ruined again. You said you had the pump and injectors rebuilt. Thats why it said check injector popping pressure. Diesel injectir shops make mistakes too
|
|
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
|
|
Les Kerf
Orange Level
Joined: 08 May 2020
Location: Idaho
Points: 1033
|
Post Options
Thanks(0)
Quote Reply
Posted: 12 Apr 2025 at 2:17pm |
 8070nc wrote:
Ill explain my exoerience with diesel injection shops and injector poping pressure. We had a F2 we got new in 1981. Radiator bottom tank developed a split and dumped the coolant. Ruined the engineMechanic rebuilt it. It vibrated terribly. Took it back off and checked the ballancer timing. It was cirrect. We had had the pump and injectors rebuilt by a diesel injection shop We couldnt figure out why it vibrated so bad. Finally i pulled the injectors and checed popping pressure. They popped at 1400 psi instead of 3800 or whatever they are suppused to pop at effectively injecting way too early. By the time we figured out the problem the engine was ruined again. You said you had the pump and injectors rebuilt. Thats why it said check injector popping pressure. Diesel injectir shops make mistakes too
|
What I know about these engines would fit on the head of a pin with room left over for the Pledge of Allegiance, but I would hate to split any tractor only to find out that the injectors were indeed the problem.
|
|
tbran
Orange Level
Joined: 14 Sep 2009
Location: Paris Tn
Points: 3467
|
Post Options
Thanks(0)
Quote Reply
Posted: Yesterday at 2:55pm |
|
We had a 6080 that someone went into and got the engine balancer off --- but if he engine has never been into - agree it is probably the clutch.
|
|
When told "it's not the money,it's the principle", remember, it's always the money..
|
|
MitchB
Bronze Level Access
Joined: 14 Sep 2009
Location: West Michigan
Points: 133
|
Post Options
Thanks(0)
Quote Reply
Posted: 6 hours 10 minutes ago at 12:32pm |
Our mechanic is going to remove the combine crank and put the original crankshaft back into the tractor, because he thinks that might be the source of the problem.
I hope that solves the problem!
|
|
Allis Chalmers WD, D14, D17, 190, 6060, 6070, 6080, 8010, I-600, I-615, R62
|
|
DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 21312
|
Post Options
Thanks(0)
Quote Reply
Posted: 5 hours 53 minutes ago at 12:49pm |
|
NOPE.
|
|
