[DMCForum] Re: Vacuum leaks

["cruznmd" <racuti1@xxxxxxxxxxxx>]

I agree about the choice in engine. I'm not exactly a "purist" but I 
do intend to keep the engine because that's what was in it from the 
factory.

It's not my favorite engine. I was told though, that once you get 
them running, if you keep driving it, they're very reliable.

By the way, I was running off of gasoline from the tank, 5 minutes 
after I tried the ether. Like I said, starts first time, every time.

--- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
wrote:
> You'll never find them all...
> 
> Trust me. Have been chasing them all over mine for a year. Engine 
will
> run alright -- just won't idle smooth as silk (until you hit leak 
with
> spray solvent of some sort). Started at upper air assembly and am
> working my way down. To date: U pipes, cold start tube, intake to
> heads, injector seals, and valve covers. Latest find is crank seal 
in
> timing chain cover.
> 
> Buy stock in the company that makes that orange silicone -- I'll 
make
> you a rich man.
> 
> You might as well know now: you have just gone to a lot of trouble 
to
> resurrect a very odd piece of hardware. PRV cut from totally 
different
> bolt of cloth. Is no accident Ford Motor Company didn't snap them up
> for its own use. Is certainly functional. Makes a distinctive sound
> that may be integral to DeLo driving experience. Is even fairly 
peppy.
> But is 1,000 times more difficult than a 460 (carbureted, please).
> 
> Devotees love to claim various advantages of PRV. IMHO biggest 
single
> reason DMC used: it was there (already in Europe, where car was 
being
> built). Doesn't appear to have made much of an impression on anyone
> other than the French, so perhaps JZD got better deal than 
alternative
> blocks. Is really too bad he didn't build a factory in Dearborn 
Michigan.
> 
> Have fun driving new toy around the parking lot.
> 
> BTW: are you running off gasoline yet? Maybe you could run a hose 
into
> passenger compartment to keep spraying starting fluid (just kidding.
> Wouldn't you be a sight on Rt 50).
> 
> Bill Robertson
> #5939
> 
> >--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> > I don't think anything is stuck. Like I said, as soon as it had 
oil 
> > it fired right up. I agree with the friction part. I think that's 
> > what lagged it out.
> > 
> > As soon as it had the micro-layer, watch out...
> > 
> > I've already leaned out the co screw. It's much better. I also 
> > retarded the timing. It was at 16 degrees. I know I'm going to 
have 
> > to do this again though.
> > 
> > I've found my 1st 2 big vacuum leaks. The CO screw hole and the 
plate 
> > on the back of the head that keeps the cam in. I warped it 
slightly 
> > when I was trying to use the sprocket support. I almost broke my 
> > timing chain cover like Tim. I stopped in time but still dorked 
up 
> > that little plate. I'll pull it tomorrow and pound it flat and 
slip 
> > the new o-ring on it.
> > 
> > Then I'll hunt down the others...
> > 
> > --- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
> > wrote:
> > > Cylinders are lubricated from below. Can't have oil from above 
(like
> > > leaking valve seals). Will foul plugs every time.
> > > 
> > > Is it possible your rings are stuck? They must move vertically 
in
> > > their grooves to let micro thin layer of oil past. Remember: 
water 
> > did
> > > puddle on top of pistons while heads were off. Unfortunately 
Marvel
> > > Mystery isn't a penetrating oil. Where it excels is finding 
nooks 
> > and
> > > crannies thicker engine oil is having hard time getting into 
> > (usually
> > > because oil galleries/lifters/push rods/etc are full of crap).
> > > 
> > > Slow cranking speed may well have been metal on metal contact.
> > > 
> > > You need to do compression tests on all 6 cylinders to ensure 
rings
> > > survived. If one reads low, may have snapped a ring.
> > > 
> > > Just deleted a paragraph about cleaning out engine with diesel 
fuel
> > > (flame alert). If your's is stopped up, contact me off list and 
I'll
> > > relate experiences.
> > > 
> > > Bill Robertson
> > > #5939
> > >  
> > > >--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> 
wrote:
> > > > Trust me, if you'd been here, you would have noticed the 
instant
> > > > difference in the way the engine sounded just before it 
started. 
> > It
> > > > was lack of oil pressure, lack of cranking speed and lack of
> > > compression.
> > > > 
> > > > The oil in the cylinders is already gone. I hooked up the 
fuel 
> > system.
> > > > The car starts first time, every time. Like it was brand-new!
> > > > 
> > > > I cleaned the spark plugs with a wire brush on a dremel every 
> > time I
> > > > fouled them. They are clean.
> > > > 
> > > > However, the car is running disgustingly rich and needs to be 
> > adjusted.
> > > > 
> > > > By the way, the exhaust sounds great. I'm so glad I replaced 
all 
> > that
> > > > stuff.
> > > > 
> > > > --- In DMCForum@xxxxxxxxxxxxxxx, "content22207" 
<brobertson@xxxx> 
> > wrote:
> > > > > Usually air in oil galleries is quickly ejected out top of 
> > heads. Can
> > > > > delay lifters for a second or two (not an issue on your car 
I 
> > know),
> > > > > but that's about it. Older domestics prime themselves every 
> > time you
> > > > > start car.
> > > > > 
> > > > > My R30 has a check valve south of filter to keep oil in, 
but ran
> > > > > engine 2000 miles with it removed no problem (was afraid I 
had
> > > > > introduced trash around pressure sending unit). Included 
> > Thanksgiving
> > > > > trip to DC burning straight 30 weight in 28 degree temps.
> > > > > 
> > > > > Filling oil filter isn't going to hurt anything (makes heck 
of 
> > a mess
> > > > > though, eh?), but don't think that was problem. Doesn't 
prime 
> > pump --
> > > > > 6-9 inches of air back to it. And don't forget all that air 
> > rest of
> > > > > the way through engine. Filling filter just gets oil to 
metal 
> > bits
> > > > faster.
> > > > > 
> > > > > Pouring a bunch of oil directly into cylinders is going to 
foul 
> > your
> > > > > plugs terribly. Doesn't take much residue to stop spark. 
And 
> > once a
> > > > > plug is fouled, unburned crap in cylinder just builds up 
like a
> > > > > rolling stone gathering moss. What do electrodes on those 
> > therrible
> > > > > Champions look like anyway?
> > > > > 
> > > > > Bill Robertson
> > > > > #5939
> > > > > 
> > > > > >--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> 
> > wrote:
> > > > > > I had this thought this morning but was afraid to voice 
it 
> > lest I be
> > > > > > wrong.
> > > > > > 
> > > > > > I put in Marvel Mystery Oil. Good compression. Had no oil 
> > pressure
> > > > > > from the oil system. Car started.
> > > > > > 
> > > > > > Ok. Oil pressure begets compression. Compression begets 
> > combustion!
> > > > > > 
> > > > > > So, I primed the oil pump like I said I would. I filled 
the
> > > filter to
> > > > > > the brim and screwed it on as quick as I could.
> > > > > > 
> > > > > > Like I said people, when the pump is air-bound, prime it!
> > > > > > 
> > > > > > I own a running DeLorean!!!!!!!! It ran, and ran hot and
> > > beautiful off
> > > > > > "the can" (ether).
> > > > > > 
> > > > > > My oil pressure shot off the scale, and the light went 
out. 
> > I'll
> > > have
> > > > > > to get a more accurate sender but she runs!!

Yahoo! Groups Sponsor

ADVERTISEMENT

To unsubscribe from this group, send an email to:
DMCForum-unsubscribe@xxxxxxxxxxxxxxx



Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.