gearman
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• los Angeles, CA, USA |
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• Registered on 1/22/2003 |
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• 336 posts |
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 Posted:3/29/2003 21:28 |
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Dave you are wrong.i have solved problems like this on 4x4 Rangers(learned it from my buddys at Ford.i believe the splines jam(front to rear)and this happens from lack of lube.my first fix was injecting grease with a syringe on a 91 Bronco for my buddy.it worked.
mike
01 excursion psd hellwig rear stabalizer 285 michelins suncoast converter transmission custom built with Transgo shift kit,by me.
TTS computer chip,next mod-TTS exhaust system
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Dave Sullivan
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• Kitchener, XX, Canada |
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• Registered on 2/27/2003 |
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• 199 posts |
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Posted:3/31/2003 11:47 |
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Thats right.
Assuming the thud is in the front to back direction.
I was replying to Ken's answer.
The shafts should never be allowed to get that dry in the first place since its part of normal lubrication maintenance. But again.. the grease is for lube, not cusioning.
Dave.  |
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Wheels
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• Visalia, CA, USA |
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• Registered on 1/20/2003 |
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• 214 posts |
• 1 Vehicle
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Posted:4/1/2003 13:07 |
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When I had the problem it WAS a lack of grease!!!!! Upon taking the shaft down, I found it to be almost completely dry. Since there is not a grease zirt the only way to lube it is to do this procedure...but it definitely solved the problem!!! |
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monsta
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• The Big Island, HI, USA |
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• Registered on 1/5/2002 |
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• 1,056 posts |
• 2 Vehicles
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Posted:4/1/2003 15:50 |
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| Quote: | Nope. I dont buy it.
Dave.
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Yeah me neither really... 
When I got my old drive shaft back I inspected it for any abnormal wear. It indeed had the blue teflon (??) coating intact. (Although, I've never seen it when it is first applied at the factory...)
I also didn't detect any excessive side to side (rotational) wear.
My explaination was more of a repeating of things heard rather than based on experience and known fact (to me). I've always said that I wouldn't do stuff like that but looks like I didn't this time.
I [i]do[/i] however, feel that grease does provide cushion. Maybe not in this case though. I'm not sure how I would explain that the clunk will go away after a healthy dollop of grease other than to say that it will cushion it.
I should also say that the replacement shaft was of a different design from the first one.
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gearman
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• los Angeles, CA, USA |
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• Registered on 1/22/2003 |
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• 336 posts |
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Posted:4/1/2003 20:41 |
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i think now that we have seen what trauskis problem really is(speed sensor)i can say that his computer went into FMEM(failure management effects mode)this occurs when the computer sees something abnormal but not that serious,what happens is;the computer falls back on preprogramed parameters to protect the trans,as high line pressure(explains the clunk)sometimes no codes.when things like this happen,and there are no computer codes(stored faults in memory)it can drive us crazy.we then have to try and diagnose from experience(works good if you know what you are doing,but not always)if that doesnt work then the fun begins and sometimes it takes a lot of time to check out all the wires.usually the trans shares its power with about 5 other things under the dash.  if there is a problem with ignition switch,sometimes cig. lighter,we have to find it because trans wont work.
regards mike
01 excursion psd hellwig rear stabalizer 285 michelins suncoast converter transmission custom built with Transgo shift kit,by me.
TTS computer chip,next mod-TTS exhaust system
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monsta
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• The Big Island, HI, USA |
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• Registered on 1/5/2002 |
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• 1,056 posts |
• 2 Vehicles
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Posted:4/2/2003 17:16 |
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| Quote: | The shafts should never be allowed to get that dry in the first place since its part of normal lubrication maintenance. But again.. the grease is for lube, not cusioning.
Dave. |
But Dave....it is NOT normal lubrication maintenance. The shaft doesn't even have a zerk fitting.
Since you cannot compress grease, a cushioning effect WILL take place.
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Dave Sullivan
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• Kitchener, XX, Canada |
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• Registered on 2/27/2003 |
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• 199 posts |
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Posted:4/3/2003 18:17 |
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Ok.. I give up on the cusioning thing. But only because I couldn't find a vent hole.
Looked it up in the book. When the shaft is taken apart for what ever reason, Check for grit and upon re-assembly, put 10mg (.36oz) of premium long life grease in the boot and slide the stub shaft thru the boot. Then you have to put new clamps on the boot.... sheesh. Makes maintenance a pain. The front shaft is a bit different.
There is no maintenance interval provided in the service book so I guess you have to check it every couple of years or so (At cost). Not one of ford's better ideas.
Thanks for mentioning the lack of a grease zerk Ken, I was not aware of that.
My bronco had one and i guess I just assumed that there would at least be a flush fitting since I did not find a zerk when I originaly had a look when I bought the truck.
I learn something new every day
Dave.
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