[TRADERMIKE 2012]

Originally Posted by Kenth

You are clearly in need of a Pontiac Service Manual.

HTH

Why evade the question, I went through all the work to check the lower end of this motor and the main reason was to see if the Rods were in correctly, but now you won't tell me. I ask not because I want to prove a point, I just want to know whether or not they are in backwards as the 7 pistons. There was great concern in the past posts. So, what is it?

NOTE: We felt, with our hands, that the flats were adjacent to each other in the center/center and that the rounds were adjacent to one another.

We deduce that the Rods are correctly orientated, thus only the 7 Pistons need to be re-orientated, this is a yes or no question please?

["QUICK-SILVER"]

Originally Posted by TRADERMIKE 2012

NOTE: We felt, with our hands, that the flats were adjacent to each other in the center/center and that the rounds were adjacent to one another.

We deduce that the Rods are correctly orientated, thus only the 7 Pistons need to be re-orientated, this is a yes or no question please?

Feeling with your hands would have took some mighty tiny fingers to slide in between rods bolted to the crank,

Squirt holes down are backwards rods.

Clay

[TRADERMIKE 2012]

Originally Posted by "QUICK-SILVER"

Feeling with your hands would have taken some mighty tiny fingers to slide in between rods bolted to the crank,

Squirt holes down are backwards rods.

Clay

My roommate did not know what was meant and neither did I exactly. If you have determined one to be backward, then maybe more are...

["QUICK-SILVER"]

Originally Posted by TRADERMIKE 2012

My roommate did not know what was meant and neither did I exactly. If you have determined one to be backward, then maybe more are...

Kinda figured you wasn't sure what you was looking at. And do suspect more than one is backwards.

This would be the components I was speaking about the other day that's heating up your oil at idle speed. Too much friction and lack of oil flow.

Clay

[TRADERMIKE 2012]

Originally Posted by "QUICK-SILVER"

I Kind of figured that you weren't sure of what you were looking at. And I also suspect more than one Rod is backwards.

These would be the components that I was speaking of the other day, pertaining to the heating up of your oil, at idle speed, because of too much friction or lack of oil flow.

Clay

Mikes reply:

After reading the Thread that I was recently sent to, I elected to write down a few passages, that I would like to share from it to this Threads post.

(1) The chamfer on the big Rod end matches the Radius on the Crank Journal or they are adjacent to one another. From: # 4, "ROD/PISTON ORIENTATION DIAGRAM, THREAD.

(2) Pontiac: hold the Piston/Rod ASSEMBLY IN YOUR HAND WITH THE valve RELIEFS AT THE TOP, THE chamfer SHOULD BE TO THE RIGHT, ON EACH bank.

(3) Pontiac: The Piston notch is orientated forward.

(4) Pontiac, older like 1967, 428 ci motor: Seeing a squirt hole on the side of the Rods Cap, viewing from the bottom means that the Piston is installed backwards, the squirt hole should be on the top facing the cam.

(5) With the Chamfer against the Crank Radius, the Bearing tangs will be facing in toward the Cam. On older Rods the oil hole will be on the Tang side. Also, Rods are offset some, so it matters how they go in. Installing them wrong will cause them to bind. With the Piston notch installed facing forward the Piston offset will be correct.

(6) By facing the Bearing Tangs in towards the Cam the Chamfers on the Rods will fall into place.

(7) The old factory Pontiac Rods had oil squirters on the Tang side of the Rods to cool the Pistons bottoms and to lubricate the Camshaft and Cylinder walls.

(8) Pontiac literature describes the early Rod Spurt holes as providing oil to the opposite Banks Cylinder walls, Piston Rings and wrist pins, "not" the Cam.

(9) Please edit to suit, if any of this is wrong, that I just copied and posted here.