[DMCForum] Misunderstood vacuum leak diagnosis

["content22207" <brobertson@xxxxxxxxxxxx>]

You misunderstood -- am not suggesting capping line off permanently
(you do want vacuum assisted brakes, don't you?). Just to trouble
shoot. Besides, what would be purpose of diagnosing mode switch if you
were just going to disconnect from car (not recommended. Heat from
panel vents would be very uncomfortable).

>--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> Sorry, as a closet historian, I'm keeping things mostly stock. I'm 
> not opposed to some 'Zillas though. :)
> 
> --- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
> wrote:
> > Easiest check would be to simply cap off nipple on passenger intake
> > rail (3/8"). Remember this nipple also powers brake booster before
> > driving car. Of course if engine is sucking air elsewhere this test
> > may not tell much.
> > 
> > Also don't forget there's a hard plastic vacuum line from mode 
> switch
> > back to heater core shut off valve that could crack and leak.
> > 
> > Engine will idle just fine with no external vacuum devices. You 
> could
> > simply cap all nipples, then concentrate finding leaks on block
> > itself. After engine is tight diagnosing things like mode switch 
> will
> > be easier.
> > 
> > How's a 302 looking right about now?
> > 
> > Bill Robertson
> > #5939
> > 
> > >--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> > > I finally took my wheels to a tire shop and had them mount my new
> > > tires. (BFG Radial T/A's.) White letters out. The car looks nicer 
> now.
> > > The old rubber wasn't fit for the test drives around my parking 
> lot.
> > > 
> > > That one wheel that I finally freed the lug nut on really did 
> stick to
> > > the hub. A squirt of "Deep Creep" and a few taps of a hammer 
> broke it
> > > free. The tire shop had a helluva time getting my rotted valve 
> stems
> > out.
> > > 
> > > The good news is, the wheel that I freed is the one at the angle 
> drive
> > > so I intend to check that out tomorrow. I still have one final 
> wheel
> > > to break free. Ugh.
> > > 
> > > Back on the subject of my vacuum leaks, how does one check for 
> them at
> > > the A/C mode switch? By ear, or do you squirt stuff in there or 
> what?
> > > 
> > > The rough idle and sneezing is bugging the crap out of me.
> > > 
> > > 
> > > 
> > > 
> > > 
> > > --- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
> wrote:
> > > > Would be surprised if angle drive makes enough noise to be heard
> > > > inside passenger compartment. More likely culprit would be 
> brake pads
> > > > missing anti-rattle clips. Wheel bearings themselves could also 
> have
> > > > problems.
> > > > 
> > > > Angle drive is nothing more than right angle gears (ring & 
> worm, not
> > > > 45 degree style, but principle is same). Spin either direction.
> > > > Speedometer itself prevents movement in reverse.
> > > > 
> > > > Everyone in another Group thinks I'm crazy, but my spindle 
> cable was
> > > > wound counter clockwise. Forward motion ultimately killed it 
> (actually
> > > > was one other post that agreed with me). Wouldn't hurt any 
> owner to
> > > > pop wheel disc off and see how cable is wound. If it's 
> backwards, be
> > > > prepared for same.
> > > > 
> > > > Bill Robertson
> > > > #5939
> > > > 
> > > > >--- In DMCForum@xxxxxxxxxxxxxxx, "erikgeerdink" 
> <erikgeerdink@xxxx>
> > > > wrote:
> > > > > I noticed yesterday while pulling out of the garage that 
> there is a 
> > > > > clicking noise coming from the front drivers wheel area.  I 
> don't 
> > > > > hear it going forward at all at any speed.  Seems like it 
> > > > > corresponse to wheel rotation.  Any ideas?
> > > > > 
> > > > > Erik



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