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There are many gaps. Are you speaking of the gap in the piston for the rings (measured) (those are all .080, .070, and .156 in respectively), the gap as shown here? https://www.aa1car.com/library/ring_end_gap.htm .......which leads to where to put the ring on the piston for measurement...

What I can say is that if the bearings were worn, it would show during the backlash chech of the cam/crank shafts. Backlash is also within specs.

i do not have the ability to remove the main bearings because of lack or certain tools and I`d have to pulll the engine from the generator. I do not have a means of removing (lifting them) out. Visual inspection of the cam bearings, from what I could see, indicated no abnormal wear seen or felt.

There are two spots that I can start to see copper. And I do believe that you are correct and that these bearings were never replaced because they sure have more than 15 hours on them, but I can believe the 212 original hours. The specs on the cam shaft, crank shaft, pistons are all almost...

Some of the measuring tools used. Rings cleaned up and ready for re-installation. Notice the different cuts on the rings and also the markings "TOP" for installation assistance. The completed piston, clean and ready to be re-installed. I have decided at this point that given the...

This is the number three piston before it is cleaned. Notice anyting here about the piston? All the clues have led us here to the answer to the puzzle. At least I hope this is the answer. I am telling you that all the clues are right here. You just have to see or not see them. My ring...

Piston rings: Cleaning the pistons and rods.

The ever present TDC that I like to maintain every time I have to remove or install a component. I decided to partially pull the cam shaft so that I could take some measurements. Had to pull the Governor assembly first and that was rather easy. Wish I took some pics. What I found is...

Piston Number 3 Piston Number 1 Piston Number 4. At least they had the decency to offset the oil ring about 120 degrees. Rod Bearings:

Well, due to yesterdays fiasco with the rings in the nr 2 piston, I decided to pull the remainder of the pistons to see if my suspicions about the rings were correct. Well, they were, As you can see in the following photos, the ring openings are nowhere near where they are supposed to be. The...

Problem just cropped up. I was working on the piston rings right now and the TM indicates that the 2nd ring goes in with the inside notch facing up. The ring though says that the notch goes down if you follow the ring manufactures marking of the ring with the word TOP on it. I am going to see...

Im in on a second set of hoses pending pricing.

Man I hated calculus. All portions of all three courses. Of course after that there was even more math......well, it's mostly theory with calc 3 and beyond. Differential equations.......what a headache that was.

Where you moving to? Probably come and see your setup if possible.

Still some good info. Ah...1954 the year of Hef and Playboy. Seems the Hef dress effect hit the engineer in this film.....

This is why I suspect metal fatigue with the rocker arm. The push rod is not bent. Rolls verynicely across mmy mini milll table and when I chucked it in my mini lathe, it spun true with no wobble and these are far from precision parts save the ball heads.

Could be. This or metal fatigue of the rocker arm. Whether this is the actual culprit (many think it is) we will know for sure when all the parts arrive.

Yeah. And I have another 803a inbound.

It's the angle and lighting. Super zoom.

It's the angle and lighting. Super zoom.