Massive Pentosin Leak

[E. Roy Wendell IV]

On Dec 8, 2006, at 12:41 PM, SJ wrote:

> Patient: 90 100q
> Symptom: Leaking from the reservoir - pump hose connection.
>
> I lost all the reservoir pentosin overnight.
> The temps dropped into the teens. Apparently, the connection at the
> reservoir-hose is no longer supple enough to compensate for  
> temperature
> changes.
> I suspected this area to be leaking Pentosin, but leaking randomly.
>
> Two weeks ago,  I wrapped the connection with a pleated paper  
> towel, secured
> with a tie wrap. If there was a leak, the paper towel would be  
> saturated and
> green in color. All was well for two weeks until this morning - temps
> overnight dropped to 10 deg F. All the pentosin was on the  
> driveway. The
> paper towel was saturated and green.
> I dont want to tighten the hose clamp more than it is. I'm afraid of
> crushing or breaking off the reservoir plastic nipple.
>
> To fix the problem temporarily, I want to replace the hose end with  
> new
> material.
> Cut off about a foot from the end of the hose.
> Add a copper or brass tubing to inside of the old hose.
> Slip new hose over brass tubing.
> Secure tubing with hose clamps(dont have to worry about  
> overtightening).
> Use the new, supple hose section on reservoir nipple.
>
> Anyone know what the Pump to Reservoir Hose inside diameter is?
>
> SJ
> 85 Dodge PU, D-250, 318, auto
> 85 Audi 4k - - sold but still on the road
> 88 Audi 5kq
> 90 Audi 100q

The nipples on the reservoir have or should have a steel inner sleeve  
so you shouldn't have to worry about  crushing it. I say should have  
because I have seen an instance where the steel sleeve was working  
it's way out of the nipple. It's not bonded in place, just a knurled  
portion on the OD of the steel sleeve to provide a friction lock.

I have also noticed that the hydraulic hoses take a set and harden  
over time so that they don't seal well at the nipple. I just cut a  
quarter inch or so off the end of the hose and slide it further onto  
the nipple so that the raised bead on the end is sitting in an area  
of the hose that isn't stretched out. Seems to work well.

Roy Wendell
erwendell at mac.com
Too many type 44 tq
A pair of MR2s