727 leak

["Stevan Miner" <miner@xxxxxxxxxxx>]

You'll never get it out far enough to get at the o-ring with the tailshaft 
in place. I suppose you could take all the bolts out of the tailshaft and 
rotate it around so that the ear was no longer blocking the shaft. I'd be 
concerned about the gasket then between the case and the tailshaft leaking.
----- Original Message ----- 
From: "Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Sunday, December 17, 2006 4:34 PM
Subject: Re: IML: 727 leak


> Hi Stevan,
>
> If the o ring is 1/4" in from the end, and I can move it 1/2" to the ear 
> blocking it, what prevents me from replacing it right there?
>
> Chris
> ----- Original Message ----- 
> From: "Stevan Miner" <miner@xxxxxxxxxxx>
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Sent: Sunday, December 17, 2006 1:00 PM
> Subject: Re: IML: 727 leak
>
>
>> Hi Chris,
>> The tailshaft must come off as the shaft exits out the back of the case. 
>> The o-ring is just a standard one that you can buy at any parts store. 
>> Just bring the old one along and compare. If you buy a seal and gasket 
>> package for your transmission (there is several other gaskets you'll need 
>> anyway) there will be one in that kit. I use ATP brand at my shop.
>> Stevan Miner
>> Miner Auto Service
>> Winnebago, MN
>> ----- Original Message ----- 
>> From: "Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>
>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>> Sent: Sunday, December 17, 2006 2:28 PM
>> Subject: Re: IML: 727 leak
>>
>>
>>> Thx Stevan,
>>>
>>> Doesn't that mean I could change the o ring without pulling the 
>>> tailshaft? is the oring a standard one i could get at any auto store?
>>>
>>> Chris
>>>
>>> ----- Original Message ----- 
>>> From: "Stevan Miner" <miner@xxxxxxxxxxx>
>>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>>> Sent: Sunday, December 17, 2006 10:12 AM
>>> Subject: Re: IML: 727 leak
>>>
>>>
>>>> Hi Chris,
>>>> That ear on the tailshaft prevents the shaft from working it's way out 
>>>> of the back of the transmission case so it is necessary to be there. 
>>>> The o-ring is about 1/4" from the end of the shaft so like I mentioned 
>>>> earlier the shaft doesn't have to completely be removed to replace the 
>>>> o-ring. Make sure you lube the o-ring up good when reinstalling the 
>>>> shaft so that it doesn't get damaged on the case edge. It's a fairly 
>>>> tight fit in the case and through the servo and strut arm.
>>>> Stevan Miner
>>>> Miner Auto Service
>>>> Winnebago, MN
>>>> ----- Original Message ----- 
>>>> From: "Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>
>>>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>>>> Sent: Sunday, December 17, 2006 10:17 AM
>>>> Subject: Re: IML: 727 leak
>>>>
>>>>
>>>>> Thx  Stevan and Dave,
>>>>>
>>>>> The shaft end looks to be blocked only by a useless ear of the 
>>>>> tailshaft. It appears like the designers put it there by accident 
>>>>> which prevents me from sliding the shaft rearward no more that about 
>>>>> 1/2" . I wonder if the o ring is within 1/2" of the end?  Is the shaft 
>>>>> stationary or does it move on it's axis or forward and aft?
>>>>>
>>>>> Thx guys,
>>>>> Chris
>>>>> 67 Imperial Convertible
>>>>> ----- Original Message ----- 
>>>>> From: "Stevan Miner" <miner@xxxxxxxxxxx>
>>>>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>>>>> Sent: Sunday, December 17, 2006 6:27 AM
>>>>> Subject: Re: IML: 727 leak
>>>>>
>>>>>
>>>>>> Hi Chris,
>>>>>> What you have leaking is the O-ring on the end of the shaft that the 
>>>>>> low-reverse servo arm pivots on. You can change this without trans 
>>>>>> removal but it takes a little work. You'll have to remove the 
>>>>>> tailshaft. Remember there is a snap ring under the cover that is now 
>>>>>> hidden by the rear transmission mount. The pan and valve body will 
>>>>>> also have to be removed. You can then take a long punch from the 
>>>>>> inside of the case and tap that shaft rearward to get at the 
>>>>>> offending o-ring. I never completely remove the shaft just enough to 
>>>>>> replace the O-ring. Makes it alot easier to line everything back up 
>>>>>> and less chance of dislodging the reverse band strut link. I always 
>>>>>> replace as the seals and gaskets that were distributed during the 
>>>>>> procedure including the selector shaft seal.
>>>>>> Stevan Miner
>>>>>> Miner Auto Service
>>>>>> Winnebago MN
>>>>>> ----- Original Message ----- 
>>>>>> From: "Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>
>>>>>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>>>>>> Sent: Sunday, December 17, 2006 12:45 AM
>>>>>> Subject: IML: 727 leak
>>>>>>
>>>>>>
>>>>>>> This is going to be hard to describe but here goes. On my 67 
>>>>>>> Imperial I have a leak at  just below the vertical surface that the 
>>>>>>> tailshaft bolts to. It's a small space between the lower flange of 
>>>>>>> the tailshaft and the TOP of the oil pan FLANGE. To see it you have 
>>>>>>> to look from the back of the transmission looking forward. It's 
>>>>>>> slightly off center of the tailshaft and where it's leaking appears 
>>>>>>> to look like the end of a aprox 3/4" diameter shaft. Oil is seeping 
>>>>>>> from this "shaft end". I've looked at the breakaway photos of the 
>>>>>>> 727 and see nothing that looks like this inside so my next step is 
>>>>>>> to drain the tranny,pull the pan and see.
>>>>>>>
>>>>>>> Does anyone know what I'm talking about?
>>>>>>>
>>>>>>> Thx,
>>>>>>> Chris Strohmeyer
>>>>>>> ----- Original Message ----- 
>>>>>>> From: "Robin Giesbrecht" <robings@xxxxxxxxxxx>
>>>>>>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>>>>>>> Sent: Saturday, December 16, 2006 9:59 PM
>>>>>>> Subject: Re: IML: power steering leak - O rings
>>>>>>>
>>>>>>>
>>>>>>>> You can buy rebuild kits for the power steering pump that are 
>>>>>>>> really only a seal kit. There is a big oring that seals the whole 
>>>>>>>> canister and a few more seals for the shaft and the relief valve I 
>>>>>>>> think. Not that hard to do.
>>>>>>>>
>>>>>>>> Robin Giesbrecht
>>>>>>>> 72 Imperial
>>>>>>>>
>>>>>>>>
>>>>>>>>>From: Kenyon Wills <imperialist1960@xxxxxxxxx>
>>>>>>>>>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>>>>>>>>>To: mailing-list@xxxxxxxxxxxxxxxx
>>>>>>>>>Subject: Re: IML: power steering leak  - O rings
>>>>>>>>>Date: Sat, 16 Dec 2006 21:26:56 -0800 (PST)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>--- Chris Strohmeyer <chrisstroh@xxxxxxxxxxx> wrote:
>>>>>>>>>
>>>>>>>>> > Kenyan said...........
>>>>>>>>> >
>>>>>>>>> > 4.  "Bad o-rings"?  Anyone else that works on cars
>>>>>>>>> > where you live?  That sounds like bad advice to me,
>>>>>>>>> > but it may be out of context and part of other info
>>>>>>>>> > that he gave?
>>>>>>>>> >
>>>>>>>>> > Aren't there 1 or 2 large o rings on the power
>>>>>>>>> > steering pump that seals the
>>>>>>>>> > reservoir can?
>>>>>>>>> >
>>>>>>>>> > Chris
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>True.  There are o-rings.  The way that the thing's
>>>>>>>>>put together sorta precludes catastrophic fluid loss
>>>>>>>>>as described in the letter posted here, but to address
>>>>>>>>>the question:
>>>>>>>>>
>>>>>>>>>If I were going to pay a mechanic to deal with this, I
>>>>>>>>>would buy a replacement pump unit that comes with a
>>>>>>>>>warranty so that I didn't have to worry about it.
>>>>>>>>>
>>>>>>>>>Reason being that I don't agree with paying a mechanic
>>>>>>>>>to only partially rebuild a pump for a labor charge
>>>>>>>>>that could very likely equal or exceed the cost of a
>>>>>>>>>replacement.  I would pay the rehab factory that will
>>>>>>>>>give a warranty do that portion instead and get the
>>>>>>>>>whole thing spec'd out by someone that does nothing
>>>>>>>>>but.  That's what I'd do, anyway.
>>>>>>>>>
>>>>>>>>>Also, a failed O-ring seal is highly unlikely to cause
>>>>>>>>>the sort of rapid fluid loss described, so that's what
>>>>>>>>>I was thinking based on the info given, but I wasn't
>>>>>>>>>there.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>Please use an o in my name.  I'm particular about
>>>>>>>>>that.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>-Kenyon
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>____________________________________________________________________________________
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>>>>>>>>>
>>>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
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>>>>>
>>>>>
>>>>>
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>>>>
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