May Chat!!!
Elder User
Joined: Nov 2003
Posts: 669
Likes: 0
From: Chino Valley
I have a problem. my new boss knows just about everything about ford motors.....everything! he is trying to be funny and said that I can have a free half hour on my time card monday if I told him how to install gapless piston rings and I was wondering if anybody else here could tell me because I cant figure it out. any help would be appreciated. THX
Elder User
Joined: Nov 2003
Posts: 669
Likes: 0
From: Chino Valley
I didnt catch it, if its in there. more specifically, how do you fit them into the groove without being able to pry them apart? it doesnt say on the sight. AHHH, no free overtime for me looks like!!!
Post Fiend
Joined: Oct 2004
Posts: 10,418
Likes: 0
From: SpringHill,Fl
they are not solid...they have a gap
The top ring is actually two pieces. The first looks a lot like a conventional top ring, and directly underneath it is a "secondary rail," which effectively seals the top ring. Both of these rings have gaps, which must be checked conventionally, but they are installed with the gaps 180 degrees opposite each other, creating what the engine sees as a single, "gapless" ring.
The top ring is actually two pieces. The first looks a lot like a conventional top ring, and directly underneath it is a "secondary rail," which effectively seals the top ring. Both of these rings have gaps, which must be checked conventionally, but they are installed with the gaps 180 degrees opposite each other, creating what the engine sees as a single, "gapless" ring.
Post Fiend
Joined: Oct 2004
Posts: 10,418
Likes: 0
From: SpringHill,Fl
maybe this is what you are looking for...
With Total Seal rings, the red side of the top ring must be up when installed. If the top ring has a dot, the dot goes up. Unmarked beveled rings should be installed with the bevel side up. To use a gapless second ring, the machined ring is installed first, groove side down. The gap is placed 180 degrees from the gap in the top ring. Install the thin rail into the machined ring with the gap placed 180 degrees from the main ring gap. The oil control ring is installed with the expander first, with the gap 90 degrees from the open end of the wristpin. Install the upper rail with the gap 1 inch to the left of the expander gap and the bottom rail gap 1 inch to the right of the expander gap. End gaps should be 0.017 inch on all three rings. It is important that all four oil rings exert the same installed drag force on the cylinder walls. Insert each piston upside down into the cylinder bore with only the oil ring installed. Use a fish scale to pull the piston up through the cylinder. The installed drag force, shown on the fish scale, should be 15-19 pounds.
With Total Seal rings, the red side of the top ring must be up when installed. If the top ring has a dot, the dot goes up. Unmarked beveled rings should be installed with the bevel side up. To use a gapless second ring, the machined ring is installed first, groove side down. The gap is placed 180 degrees from the gap in the top ring. Install the thin rail into the machined ring with the gap placed 180 degrees from the main ring gap. The oil control ring is installed with the expander first, with the gap 90 degrees from the open end of the wristpin. Install the upper rail with the gap 1 inch to the left of the expander gap and the bottom rail gap 1 inch to the right of the expander gap. End gaps should be 0.017 inch on all three rings. It is important that all four oil rings exert the same installed drag force on the cylinder walls. Insert each piston upside down into the cylinder bore with only the oil ring installed. Use a fish scale to pull the piston up through the cylinder. The installed drag force, shown on the fish scale, should be 15-19 pounds.
Post Fiend
Joined: Apr 2007
Posts: 5,398
Likes: 1
From: Gilbert, Az
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Elder User
Joined: Feb 2007
Posts: 757
Likes: 0
From: Nikiski Alaska
mornin all, I had a great drive out to bellmont mnt. yesterday. The weather was great and we were the only ones out there, so no dust. I cant wait till next weekend for another trip out into the desert.
