[DML] Re: Silicon hose under the intake manifold
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[DML] Re: Silicon hose under the intake manifold

To anyone who has ever gone into their valley - 

Do you remember if you had a washer on the bolt that holds the return
water pipe to the engine block?  Mine did not, and it was already
broken when I got in there.  The top portion of the bolt that was
broken was incredibly dirty and the part that is *STILL* stuck in my
engine is being VERY stubborn.  It was probably the source of
anti-freeze leak in my car.  


--- In dmcnews@xxxxxxxxxxxxxxx, "valleyrat12" <valleyrat12@...> wrote:
> I also plan on tackling this later this month. Check out 
> www.specialtauto.com. John has all the hoses available. 
> I have heard that some of the bolts under the manifold have a nasty 
> habit of breaking. That is my only fear; otherwise I expect the 
> procedure to be straightforward. A good tip I learned on the DML is 
> to be sure that you pressure test the system before you bolt the 
> manifold back on. I plan on replacing the heater pipe with the 
> stainless one, replace all the vacuum hoses/o rings, install a self 
> bleeder, and clean and paint the "valley". When I am done ALL of the 
> hoses in the car will be new.  
> Might also be a good idea to do a tune up while you are in there.
> Nathan
> 2277
> --- In dmcnews@xxxxxxxxxxxxxxx, "Ryan Wright" <ryanpwright@> 
> wrote:
> >
> > Rob & list,
> > 
> > 1. Where would one buy the correct silicon hose & clamp for this 
> location?
> > 2. Does anyone have a write-up on the procedure to replace this?
> > 3. Is there anything else I should check and/or replace while I'm 
> at it?
> > 
> > I've replaced all of the hoses throughout my car except those under
> > the intake manifold and I do have a tiny, tiny leak coming from 
> that
> > area. I figure it's time to get this job done.
> > 
> > Thanks,
> > 
> > -Ryan
> > 
> > On 3/5/06, rob@ <rob@> wrote:
> > > Harold is dead-on in advising using
> > > silicone hoses for the block pipe to water pump backing plate as 
> you don't
> > > want to do that job twice in one year. A leak there has been 
> known to cause
> > > the PVR engine block to fail over time. We've been using 
> silicone hose there
> > > on all water pump replacements for well over twenty years and 
> have never had
> > > to go back and re-tighten a silicone hose clamp. If you don't 
> want to follow
> > > a yearly clamp tightening ritual then silicone hose with the 
> correct clamps
> > > (no open slots for the worm gear) is the only way to go. 
> Although expensive
> > > initially silicone hose will generally outlast the rest of your 
> car!
> > >
> >

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