Re: 56 400 loss of power

Posted by Leeedy On 2018/8/12 21:25:12
Quote:

Riki wrote:
New plugs today.

When started knock..that went away. But. In gear miss.

Runs fine at idle. Except miss..where that engine should be still..no shakeing.

As far as plugs. They say if they are white.they are being steam cleaned. Leaking head gasket.

So I believe the head gaskets are toast.

Some of those plugs are white...

I am sure i scored the piston and cyl walls

Valves May be vent too.


As I have advised someone else on here with a condition sounding like he has a blown head gasket, the very first thing I would do (after addressing wiring, spark and checking the dipstick) is take your car to a shop that has a tester that can check for the presence of exhaust IN the coolant. This is very, very easy to do... and almost for absolute sure will reveal if you have a head gasket shot. This is not 100% foolproof depending on where your head gasket may be going bad... and how far along the damage is at the time... but exhaust gas has no place in the coolant and can only mean something has gone horribly wrong.

I've been through all this decades ago with Packard V-8s and Cadillac V-8s, so I can save you time, wasted labor and needless headaches. Right this very moment I have a Cadillac with Northstar engine sitting in storage with a blown head gasket. Know what it does? Idles chunky... has lots of condensation when cold... blows white "smoke" out of one of the pipes. One of my 1955 Caribbeans blew a head gasket in 1978. Know what it did? Idled rough... blew white "smoke" out of one tail pipe... engine oil turned the color of butterscotch.

And... when you say "head gaskets are toast"... there is no reason why both head gaskets should blow at the same time on a V-8. Usually it's one side or the other...

Just advice.


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