🚀 go-pugleaf

In article <643@bonnie.UUCP> saf@bonnie.UUCP (Steve Falco) writes:

>I asked him about the white, crusty deposits I had on two adjacent
>spark plugs in my 305 V8.  (Cylinders 6 and 8.)  He said "No problem,
>sounds like antifreeze is getting into the cylinders.  Probably just
>a blown gasket or a crack somewhere."  NICE!!
>
>Can anyone offer a way to determine whether the deposits come from oil
>or antifreeze?  Pulling the heads is a bear!

Especially if they're cast iron instead of alloy.  Are you losing
coolant?  Is there steam (white) from the exhaust?

Snoopy
tektronix!tekecs!doghouse.TEK!snoopy

In article <643@bonnie.UUCP>, saf@bonnie.UUCP (Steve Falco) writes:
> 
> I asked him about the white, crusty deposits I had on two adjacent
> spark plugs in my 305 V8.  (Cylinders 6 and 8.)  He said "No problem,
> sounds like antifreeze is getting into the cylinders.  Probably just
> a blown gasket or a crack somewhere."  NICE!!
> 
> Can anyone offer a way to determine whether the deposits come from oil
> or antifreeze?  Pulling the heads is a bear!  BTW, the engine uses a
> quart of oil in 1000 miles.  This can go up to a quart in 250 miles when
> driven hard.  I suspect the oil consumption is at the valve stems since
> compression was OK - wouldn't they all wear evenly causing deposits on
> all plugs rather than just two?
> 
> 	Steve Falco

You might want to have your engine oil and engine coolant analysed, in an
engine oil analysis, they indicate any (and how much) coolant is contained
in the oil.  Also, the antifreeze analysis can tell if there are exhaust
contaminants in the coolant.  The cost for both analyses would probably be
around $40, a lot cheaper than pulling the head.  Usually if you have a
cracked head or blown gasket, it is easily detected in this manner.

              Dennis Gibbs

In article <643@bonnie.UUCP> saf@bonnie.UUCP (Steve Falco) writes:
>I had to bring my Chevy to the dealer for a rear brake recall (the one
>where the wheel cylinder falls out tangling up the brake shoes and
>causing a loss of brake fluid).
>
>I asked him about the white, crusty deposits I had on two adjacent
>spark plugs in my 305 V8.  (Cylinders 6 and 8.)  He said "No problem,
>sounds like antifreeze is getting into the cylinders.  Probably just
>a blown gasket or a crack somewhere."  NICE!!
>
>A few people have responded to my first posting saying that the deposits
>could be caused by oil additives.  I don't use any special additives
>but of course there are some additives in any oil.
>
>Can anyone offer a way to determine whether the deposits come from oil
>or antifreeze?  Pulling the heads is a bear!  

I would suggest if you have a good radiator to have it pressure
checked.  They remove the antifreeze and pressurize the radiator and
let it sit under pressure for a while.  If the pressure drops then the
radiator is leaking.  If you can't find the leak then it could be
inside the engine.  Also a compression check in those suspect
cylinders should show a problem.
Bill Landsborough

----

"Love is patient and kind; love is not jealous or boastful; it is not 
arrogant or rude... Love bears all things, believes all things, hopes all
things, endures all things."   1 Corinthians 13:4-7