727 leak

["Stevan Miner" <miner@xxxxxxxxxxx>]

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
>>>>>
>>>>>
>>>>>
>>>>>____________________________________________________________________________________
>>>>>Do you Yahoo!?
>>>>>Everyone is raving about the all-new Yahoo! Mail beta.
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>>>>>
>>>>>
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>>>>
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>>>
>>>
>>>
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>>
>>
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