727 leak

["Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>]

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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>>
>>