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Rebuilt Engine - Almost 2 years ago -Going to install!! #106720
08/17/08 11:57 PM
08/17/08 11:57 PM
Joined: Jul 2008
Posts: 1,075
United States
STLDuster Offline OP
super stock
STLDuster  Offline OP
super stock

Joined: Jul 2008
Posts: 1,075
United States
I rebuilt a '73 440 almost 2 years ago. I had planned on installing it in my Duster a couple of months later. Well, something came up and the project got pushed back. Then one thing led to another and here I am two years later. Well, I am to the point to where I am ready to order the torque converter and slip the engine and transmission in to the car. I unwrapped my engine today to tinker with a few things. I primed the oil pump and found that I had a lifer collapsed. When I would rotate the crank by hand the push rod would almost fall out of the rocker arm. I thought it wouldn't be a problem, it would probably pump up when the engine started and got up to pressure. But I don't want to risk wiping out a lobe on the cam.

As I was tinkering around, I decided to test the cylinder pressure, to see if I was in the ball park of where I think it should be. I used my dads cylinder pressure gauge that has been sitting on a shelf for years and years. My brother started turning the crank over by hand while I held the gauge in a spark plug port. The needle never budged, but we determined two things. The gauge is no good (we tested it by plugging it in to our air compressor after testing it in the cylinder head) and that the rings are not sealed. I have tape over the top of the intake manifold, when I plugged the spark plug port and turned the crank over the tape burped at us. The cylinder pressure slipped right passed the rings and in to the crank case. I am hoping that when I start the engine this will quickly itself by the rings seating. But this is my first engine so...

Let me know what you think... am I cruising straight in to a expensive catastrophe?

4626095-IMG_1390-E.jpg (92 downloads)
Last edited by STLDuster; 08/18/08 12:28 AM.

"No great genius has ever existed without some touch of madness." - Aristotle
Re: Rebuilt Engine - Almost 2 years ago -Going to install!! [Re: STLDuster] #106721
08/18/08 12:39 AM
08/18/08 12:39 AM
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
preoil as crank is being turned, Light oil into cyls,remove intake & check cam lobes for lube, remove valve covers & check & oil valve stems. Have carb/ign PERFECT for IMMEDIATE fireup. have several helpers one for gauges one for leaks one for dist/timing light... EDIT also remove inner valve springs & romp on the throttle many times in the 20 minute breakin. The rings must be LOADED during the critical breakin period. You have ONE opportunity to get max ring seating/seal & that is by repeated full throttle(within reason) pulls.

Last edited by RapidRobert; 08/18/08 09:10 AM.






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