727 leak

["Stevan Miner" <miner@xxxxxxxxxxx>]

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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