440 headgasket to lower compression

[BLK 68 R/T]

Didn’t realize it has had a different dist. In the past. I would agree with everyone else then on a timing issue.

 

[BSB67]

I guess I don’t understand how a timing chain impacts ignition timing if the engine’s ignition has been timed properly.

Maybe folks are inadvertently being unclear and are actually referring to the balancer mark being off.

 

[RemCharger]

I guess I don’t understand how a timing chain impacts ignition timing if the engine’s ignition has been timed properly.

Maybe folks are inadvertently being unclear and are actually referring to the balancer mark being off.

I think some of the references are possibly the cam is over advanced.

 

[BSB67]

I think some of the references are possibly the cam is over advanced.

Sure. But still only blows 150 psi.

 

[RemCharger]

Sure. Still only blows 150 psi.

Static.

 

[kaj750]

Your timing chain doesn't even need to be off a whole tooth. If it's a set with multiple keyways for camshaft degree-ing, it might be really advanced, or retarded, using the wrong keyway
.
Curious. Do you have a degreed balancer, or a timing tape on it? If not, I'd put a tape on it before I took anything apart.

For the avgas, I just drive on the airport grounds, put a credit card in the machine, enter my license number in place of the aircraft number, and self pump. (Into five gallon cans, NOT the truck!)I do it at my tiny az airport, but I think I could do it in a small airport in california...... but it wouldn't be cheaper than california pump 91

Balancer only has paint marks. Adding tape on the reinstall would be simple enough.
Not sure I have any airports that small, around me. I'll check, just for the heck of it.

 

[33 IMP]

Balancer only has paint marks. Adding tape on the reinstall would be simple enough.
Not sure I have any airports that small, around me. I'll check, just for the heck of it.

Fresno Chandler executive has a self serve 100LL , 24/7.
I use a steel can, so I ground the filler to that. Normally, a pilot would ground the plane. If you use a plastic can, you'll need to ground it to your car/truck. .

 

[kaj750]

Fresno Chandler executive has a self serve 100LL , 24/7.
I use a steel can, so I ground the filler to that. Normally, a pilot would ground the plane. If you use a plastic can, you'll need to ground it to your car/truck. .

I forgot about Chandler. Heck, why not? Maybe it'll get me a chance to drive the crap out of the car before I tear it apart.

 

[Curiousyellow71]

With the heads off my reference of down was measuring from the deck to the top of the piston. You need that to know where your at or its just a guess.
This compression calculator is simple enough to use.
Compression Calculator