[DMCForum] Re: damnit to hell (me?)

["cartermartin" <cartermartin@xxxxxxxxx>]

Bill,

You are correct I have an expansion tank and I guess there is a 
bleeder hose going from the top of the radiator to the tank.

Performance is definately not a problem. It's running great.

If the o-rings problem exist i will get the john Hervey kit for the y-
pipe o-rings and bolts. Mine is a Bosh LH Jettronic f/i but that 
system has been flawless.

I did the compression test myself but will re-do it with another 
guage.

Thanks for the excellenet advice.

Carter
--- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
wrote:
> 
> You should have a cooling system expansion tank in front of the
> driver's wheel well.
> 
> Trapped air above the thermostat isn't an issue for you because your
> upper radiator hose continues to rise upwards after the thermostat
> housing. On a DeLorean that is the highest point in that part of the
> system -- trapped air has no where else to go until bled off (can 
you
> spell "self bleeder"?).
> 
> The best place to check for milky foam from an internal coolant leak
> is the dipstick, not the oil filler cap. How soon after engine 
startup
> did you check the filler cap? Takes a little while to burn
> condensation off.
> 
> Don't forget that on a severely leaking engine, cylinders may only 
be
> under pressure for 1 out of 4 strokes -- check for rust on the spark
> plug electrodes and steam in the exhaust. You should also notice a
> decrease in performance from dead cylinders.
> 
> 180 PSI is definitely too high for even E Series Volvo (translates
> into more than 10:1 compression). You'd need unbelievable carbon
> buildup to yield that -- more than 1/8". Would glow so red hot that 
I
> couldn't imagine the car even being drivable (not without a couple 
of
> bottles of octane boost in the tank). Did you perform the 
compression
> test yourself or are you relying on someone else's numbers?
> 
> BTW: didn't I see someone recommend John Hervey parts for you in a
> recent post? You might seriously consider his smaller OD fuel lines.
> He's also an excellent source for K Jetronic fittings and washers 
that
> are hard to find elsewhere.
> 
> Bill Robertson
> #5939
> 
> >--- In DMCForum@xxxxxxxxxxxxxxx, "cartermartin" <cartermartin@xxxx>
> wrote:
> > 
> > This was a most interesting thread (the subject line right out of 
my 
> > lips). 
> > 
> > I am reasonably sure at this point I will have to reassess the 
> > condition of my engine (PRV/B280f in a...umm...Volvo...). 
> > 
> > I have some more questions:
> > 
> > 1. How does one properly bleed the cooling system on one of these?
> > 
> > 2. Would a compression test reveal a faulty head gasket? I have 
good 
> > compression on all 6 cylinders (180-185psi, maybe too good?). 
> > 
> > 3. Would a head gasket that is bad or heading that way cause 
excess 
> > pressure in the cooling system? 
> > 
> > The engine is running strong but I have had a couple high 
> > temp 'incidents'. And chocolate milkshake in the oil filler which 
was 
> > there before though.
> > 
> > Carter
> >

---

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