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NGOT8R

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I’m not saying anything is wrong, just that it appears that the primary chain system has cogs (teeth in the chains and phaser gears that mesh with each other, whereas the secondary chain has rollers (like a bicycle or motorcycle or chain) interlock with the gears.

I haven’t had mine apart yet, but will in the near future. IMO, a cogged chain would seem to be stronger in design, hence why some people are addressing/upgrading secondary chains which are said to be the weak link.

See pics here of a guy that had a secondary chain come apart on him. The rollers simply cracked and split in half, thus creating the pile of pieces in the top pic. He pulled his covers to troubleshoot a noice and found this.

1738251036560-m7.jpg

1738251083829-iz.jpg
 
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khanks

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I’m not saying anything is wrong, just that it appears that the primary chain system has cogs (teeth in the chains and phaser gears that mesh with each other, whereas the secondary chain has rollers (like a bicycle or motorcycle or chain) interlock with the gears.

I haven’t had mine apart yet, but will in the near future. IMO, a cogged chain would seem to be stronger in design, hence why some people are addressing/upgrading secondary chains which are said to be the weak link.

See pics here of a guy that had a secondary chain come apart on him. The rollers simply cracked and split in half, thus creating the pile of pieces in the top pic.

1738251036560-m7.jpg

1738251083829-iz.jpg
I can look at the rollers I just don’t know what it looks like I’ll post a pic circle where to look

IMG_0457.jpeg


IMG_0458.jpeg


IMG_0459.webp
 

NGOT8R

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I marked your picture with green lines on some of the rollers. You woukd want to rotate the chain and look for cracks or missing pieces from the individual rollers.

I would think that missing or broken rollers would create both noise and extra slack in the chains. Not sure whether this could somehow transfer to or cause problems in other areas of the timing system, but the photos that I uncovered were enough to help me make up my mind that I will be upgrading my secondary chains to an HD design.

1738252105422-3e.webp
 

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I’m not saying anything is wrong, just that it appears that the primary chain system has cogs (teeth in the chains and phaser gears that mesh with each other, whereas the secondary chain has rollers (like a bicycle or motorcycle or chain) interlock with the gears.

I haven’t had mine apart yet, but will in the near future. IMO, a cogged chain would seem to be stronger in design, hence why some people are addressing/upgrading secondary chains which are said to be the weak link.

See pics here of a guy that had a secondary chain come apart on him. The rollers simply cracked and split in half, thus creating the pile of pieces in the top pic. He pulled his covers to troubleshoot a noice and found this.

1738251036560-m7.jpg

1738251083829-iz.jpg
The primary and secondary chains are different as you mentioned.
 
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khanks

khanks

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I marked your picture with green lines on some of the rollers. You woukd want to rotate the chain and look for cracks or missing pieces from the individual rollers.

I would think that missing or broken rollers would create both noise and extra slack in the chains. Not sure whether this could somehow transfer to or cause problems in other areas of the timing system, but the photos that I uncovered were enough to help me make up my mind that I will be upgrading my secondary chains to an HD design.

1738252105422-3e.webp
Awesome I’ll definitely take a look at them
 

NGOT8R

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The primary and secondary chains are different as you mentioned.
I’m studying and learning myself, as I get ready to dial up more power from my car, so I’ve been searching high/low for potential weak links that I might need to upgrade when I disassemble the timing system. I’m very glad that I found those pics.

I know you have a s super fast Gen. 2 and you have a very strict maintenance program on the timing/valve train systems. Have you ever seen anything like that? Are you running upgraded secondary chains and/or a secondary tensioner flip bracket? I see many people are switching to that design because they say ford has the tensioner on the wrong side of the chain on the driver’s side head Which creates excess slack.
 

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I’m studying and learning myself, as I get ready to dial up more power from my car, so I’ve been searching high/low for potential weak links that I might need to upgrade when I disassemble the timing system. I’m very glad that I found those pics.

I know you have a s super fast Gen. 2 and you have a very strict maintenance program on the timing/valve train systems. Have you ever seen anything like that? Are you running upgraded secondary chains and/or a secondary tensioner flip bracket? I see many people are switching to that design because they say ford has the tensioner on the wrong side of the chain on the driver’s side head Which creates excess slack.
I run gt350 primary chains and Accufab secondaries with MMR flip bracket. The secondaries are said to be an upgrade over stock, but look similar to oem.
 

NGOT8R

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I run gt350 primary chains and Accufab secondaries with MMR flip bracket. The secondaries are said to be an upgrade over stock, but look similar to oem.
Did you sense too much slack in the secondary chains before switching to the flip bracket?
 

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Did you sense too much slack in the secondary chains before switching to the flip bracket?
The slack in the secondary chain on Bank 2 appears when engine is running. Both exhaust cams are driven by the crank, exhaust cams drive the intake cams. On bank 1, the secondary tensioner acts on the slack side of chain. On bank 2, the secondary tensioner acts on the tension side of chain. The flip bracket allows the bank 2 secondary tensioner to act on the slack side.
 
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khanks

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I’m not saying anything is wrong, just that it appears that the primary chain system has cogs (teeth in the chains and phaser gears that mesh with each other, whereas the secondary chain has rollers (like a bicycle or motorcycle or chain) interlock with the gears.

I haven’t had mine apart yet, but will in the near future. IMO, a cogged chain would seem to be stronger in design, hence why some people are addressing/upgrading secondary chains which are said to be the weak link.

See pics here of a guy that had a secondary chain come apart on him. The rollers simply cracked and split in half, thus creating the pile of pieces in the top pic. He pulled his covers to troubleshoot a noice and found this.

1738251036560-m7.jpg

1738251083829-iz.jpg
Is this my issue on the passenger side(side of my noise) the exhaust cam isn’t moving with the intake but on the driver side everything moves together can this be my issue?!

 

NGOT8R

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Is this my issue on the passenger side(side of my noise) the exhaust cam isn’t moving with the intake but on the driver side everything moves together can this be my issue?!

I’m not sure on that. 80FoxCoupe might be able to better answer that question for you, as he pulls his regularly for maintenance.
 
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khanks

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The slack in the secondary chain on Bank 2 appears when engine is running. Both exhaust cams are driven by the crank, exhaust cams drive the intake cams. On bank 1, the secondary tensioner acts on the slack side of chain. On bank 2, the secondary tensioner acts on the tension side of chain. The flip bracket allows the bank 2 secondary tensioner to act on the slack side.
Look at my recent chat
 
 








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