RE: [DML] Re: Holes Rotting in PRV's

["Tom Tait" <TTait@xxxxxxxxxx>]

Hey guys, the coolant neither disappears nor evaporates in a proper system.  If you are adding coolant with every second or third tank of gas, you are slowly leaking coolant.  If you can's see where its leaking when you park the car hot, then its probably dripping into valley and corroding your block.

If you can see where its leaking, fix it.  You may still bed leaking in the valley as well, and you need to find out.

Ignoring this is going to get expensive.  Removing the manifold and installing a new water pump and hoses isn't that tough, and there is a forum here to help.  Fix it, get help from another owner, or take it to a vendor, but don't kid yourself...  This really does happen.

Tom
10902


-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx on behalf of David Teitelbaum
Sent: Wed 11/21/2007 5:39 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Re: Holes Rotting in PRV's
 
Glyptol is a good preventitive solution but the root cause is the
seals, hoses, and gaskets that leak old, corrosive coolant that
collects in those wells and corrodes the block. If any owner is
worried about this problem they should do a Master Water Pump Kit and
get in there and replace all those seals, hoses, and gaskets. While in
there it is a perfect opportunity to clean the wells and paint the
area with Glyptol for a little extra "insurance". After that the
coolant should  be tested every year and replaced every 4 years. A lot
cheaper than having the block rot!
David Teitelbaum
vin 10757

--- In dmcnews@xxxxxxxxxxxxxxx, "Chris Williams" <cwilliams1966@...>
wrote:
>
> Yep, got to agree with you it was also on the side of cyl 1-3. seems 
> to indicate a weakness hear. As I mentione before I think the best 
> advice is to protect the valley with 'Glyptal' Engine paint. this 
> works a treat and I have used it extensivly on severel engines now.
> Chris
> --- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@> wrote:
> >
> > So your hole was in the oil galley too, eh?
> > 
> > Every person I've met with this problem had the hole in an oil 
> galley.
> > Mine was passenger side (cylinders 1-3) -- which side was yours?
> > Perhaps there's a common engineering weakness in the galleys that's
> > getting us (metal too thin?). The only reason I can think for those
> > casting spars is to reduce thickness of the engine top without 
> losing
> > strength.
> > 
> > My Renault block sat for 10 years or so -- did yours sit as well? 
> > 
> > Bill Robertson
> > #5939
> > 
> > >--- In dmcnews@xxxxxxxxxxxxxxx, "Chris Williams" <cwilliams1966@>
> > wrote:
> > >
> > > Although not quiet the same, my first attempt at repair was to 
> have 
> > > two ally 10mm thick plates TIG welded over the top deeper holes. 
> This 
> > > worked for a few months, unfortunatly the oil just found the next 
> > > weakest spot in the casting to force it's way out of,,
> > > Chris
> >
>





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