Got Oil... won't prime.

FiFo · Jun 21, 2007

She's a live!

J-20 lives!

<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/sKhCbqS0GFk"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/sKhCbqS0GFk" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>

Edit:

Why isn't the embeded video working? It's always worked before when I copied it over from YouTube.

TreeClimber · Jun 21, 2007

As a recap, what caused the boiling of the coolant in the radiator?

zip1 · Jun 22, 2007

What's with the 401's

finally got around to starting mine and it looks as though the head gasket blew out. 1st clue is the milky white watery oil, 2nd was the anti-freeze being low

Totalled · Jun 22, 2007

Edit: Never mind... wasn't your video..

Glad you got it running.

FiFo · Jun 22, 2007

TreeClimber said:
As a recap, what caused the boiling of the coolant in the radiator?

Not really sure, it hasn't done it since, but I'm going to go get anther fan clutch tomorrow just to be on the safe side.

KarlVP · Jun 22, 2007

TreeClimber said:
As a recap, what caused the boiling of the coolant in the radiator?

Too little coolant.

Binder · Jun 22, 2007

Sitting still reving the engine to break in the cam it's normal for the engine to get hot IMHO.

junkyard jim · Jun 28, 2007

Thermostat trapped air in the engine. I use a mini magnetic "pencil" to fish the lifters. During install, someone probably got the pushrod 1/2 way into the lifter and when it pushed up, the rocker broke (happened to my 304 too)
The rear part of the oil gallery could be clogged (which caused the lifter/ cam melt down) or the cam may have "walked" ahead till the lifter slid off. (cam gear gets messed up a lot in AMC V8s because of cam walk)

PS: I suggest 15W40 motor oil (I run Delo if I can find the older pre CI rated stuff)

KarlVP · Jun 28, 2007

After tuning the carb and everything on tuesday, the decision was made to run straight 30W oil.

junkyard jim · Jun 28, 2007

KarlVP said:
After tuning the carb and everything on tuesday, the decision was made to run straight 30W oil.

Run Delo so the motor gets some ZDDP happening or the cam won't last long!

KarlVP · Jun 28, 2007

junkyard jim said:
Run Delo so the motor gets some ZDDP happening or the cam won't last long!

What is ZDDP? Sounds like something prisoners do to eachother....

PUO-BANNED · Jun 28, 2007

He's referring to the amount of Zinc in the motor oil which is used as a lubricant for flat tappet cams but also contaminates and shortens the life of the catalytic converter when it's burned off and enters the exhaust stream.
New vehicles must meet a 100k emission system life so the new GF-4/SM grade oils and the new CJ-4 Diesel Oils have much lower amounts of ZDDP to prolong emission system life, Also new vehicles use roller lifters or roller cam followers and the camshafts are made of different material so the amount of zinc in the oil can be reduced.

Bottom line is if your breaking in a flat tappet cam get some of the Comp Cams or Crane Cams Break in lube. I know that the Q-power (quaker) racing oils and the Valvoline Racing oils have some of the highest ZDDP content. as far as the old DELO 400 good luck finding it, as it's been replaced by the new Delo 400 LE (low emission) oil which has far lower levels of zinc.

Once the cam is broken in you should be Ok unless its a race motor with high Valve spring pressures.