[s-cars] Coolant leak from under the intake manifold - a breakthrough

[Radek]

Hi guys;

After another evening spent figuring out how to remove two out of the ten or 
so bolts holding the manifold to the cylinder head, being really desperate, 
I noticed four small holes in the manifold.  Wondering what these were for, 
I inserted a screwdriver and BINGO:  these line up perfectly with the 
hard-to-access bolts at the bottom of the manifold.  Something so trivial, 
it makes me feel stupid.

Anyway, now removing the manifold is easy, this will give me access to the 
water pipe and the source of the coolant leak.  Will report on progress.
Cheers;

Radek
1988 90Q
1991 V8Q 5-sp
1996 UrS6 (son's ride)


----- Original Message ----- > Message: 1
> Date: Fri, 31 Jan 2014 09:44:57 +0000
> From: Paul Heneghan <paul at heneghan.co.uk>
> To: s-car-list at audifans.com
> Subject: Re: [s-cars] Coolant leak from under the intake manifold
> Message-ID:
> <CAKafYcpOv3KpC1oTmCLnFkN+dAZgKd8TDeDS63Q=MNXFVQaFyA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
>> Once you have done a thorough investigation of the leak, if you are
>> certain it is coming from  the coolant pipe as you have surmised,  the
>> repair is indeed an involved process that will require removing the
>> intake manifold.
>
> I'm pretty sure I did once take that solid coolant pipe off *without*
> removing the intake manifold - because I couldn't undo the rubber turbo
> return coolant pipe (that I strongly suspect is the real source of the 
> leak
> in this case). It wasn't easy  - a real 3D challenge, but I thought it
> might be easier than taking the intake manifold off (I might be wrong).
>
> Paul
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 31 Jan 2014 07:48:30 -0500
> From: John Cunningham <jc at j2c3.com>
> To: paul at heneghan.co.uk, s-car-list at audifans.com
> Subject: Re: [s-cars] Coolant leak from under the intake manifold
> Message-ID: <52EB9B9E.8010407 at j2c3.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> taking the intake manifold off is really not a big deal.  when the
> rubber hose blew on me this summer, i unbolted the intake mani w/out
> disconnecting everything and just hung it from the hood w/ a ratchet
> strap - the kind of trick you pick up from watching pros do things
> fast.  pulling up the IM makes everything else 100x easier and hardly
> takes any time at all. then you can really be sure you've got perfect
> placement of the hose and clamps...
>
> JC
>
> On 1/31/2014 4:44, Paul Heneghan wrote:
>>> Once you have done a thorough investigation of the leak, if you are
>>> certain it is coming from  the coolant pipe as you have surmised,  the
>>> repair is indeed an involved process that will require removing the
>>> intake manifold.
>> I'm pretty sure I did once take that solid coolant pipe off *without*
>> removing the intake manifold - because I couldn't undo the rubber turbo
>> return coolant pipe (that I strongly suspect is the real source of the 
>> leak
>> in this case). It wasn't easy  - a real 3D challenge, but I thought it
>> might be easier than taking the intake manifold off (I might be wrong).
>>
>> Paul
>> _______________________________________________
>> S-CAR-List mailing list
>> http://audifans.com/mailman/listinfo/s-car-list
>> http://www.audifans.com/kb/List_information
>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 31 Jan 2014 12:52:20 -0500
> From: "Radek" <radek at uniserve.com>
> To: <s-car-list at audifans.com>
> Subject: Re: [s-cars] Coolant leak from under the intake manifold
> Message-ID: <A1DA48C98C49492AACC3CDBDBE42DC6B at Compaq>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Thank you very much for your input guys.  Yes, the car is a 1996 UrS6 and
> coolant is seeping along the cylinder head, somewhere in the middle of the
> engine.  Well hidden from view.  Looks like we will have to remove the
> intake manifold, it should swing out with fuel lines attached, some vacuum
> lines will have to be separated.  I just can't imagine how even a longest
> Allen key can be inserted into the bolt in the Cyl. 2 area, will have to
> figure something our.  I will report on progress.
> Cheers;
>
> Radek.
> 1991 V8Q 5-sp
> 1988 90Q
> 1996 UrS6 (son's ride)
>
>>
>> Message: 4
>> Date: Thu, 30 Jan 2014 22:36:37 -0800
>> From: tedebearp at yahoo.com
>> To: s-cars <s-car-list at audifans.com>
>> Subject: Re: [s-cars] Coolant leak from under the intake manifold
>> Message-ID: <9C976172-F108-401A-9EE7-3EF39D624008 at yahoo.com>
>> Content-Type: text/plain; charset=utf-8
>>
>> This is the hose that ruptured on my car recently.  Initially, I wrapped
>> it with duct tape (which was difficult to do well due to I 
>> accessibility),
>> and that lasted for about 30 minutes, enough to get me out of downtown 
>> SF.
>> Then the coolant started gushing again and I decided to have the car 
>> towed
>> rather than risk blowing a head gasket or warping the head.
>>
>> I had replaced that hose 7 or 8 years ago when I was changing the timing
>> belt, but I may have used generic hose (don't recall).  At that time I
>> briefly considered replacing the whole section (hose and pipe) with AN
>> hose, but decided that replacing the rubber hose was easier and cheaper.
>> After it ruptured,  The shop charged me $26 for the hose and $250 labor.
>>
>> Regardless of whether you have to spend a few dollars more or less to get
>> that hose, it is certainly cheaper now than waiting until it ruptures and
>> results in a tow or warped head.
>>
>> Sent from my iPad
>>