Wont start after cam/lifter swap

[Ramnm08]

Changed cam/lifters and now she wont start. All marks on phaser, crank, chain, etc all lined up and #1 @ TDC. Gets spark and has no compression on cyl 1. Definitely getting fuel. Plugs are soaked. Checked all fuses under the hood. Also, it's blowing air back through the throttle body instead of sucking air. I dont see how it could be 180 degrees out. Especially since everything was installed the same as it was taken apart.

 

[crackerjack1957]

Changed cam/lifters and now she wont start. All marks on phaser, crank, chain, etc all lined up and #1 @ TDC. Gets spark and has compression. Definitely getting fuel. Plugs are soaked. Checked all fuses under the hood. Also, it's blowing air back through the throttle body instead of sucking air. I dont see how it could be 180 degrees out. Especially since everything was installed the same as it was taken apart.

Got to have installed timing chain/phaser off, probably have bent push rods now.

Excellent write up here:https://www.ramforum.com/threads/how-to-4th-gen-hemi-cam-installation.82531/

 

[crackerjack1957]

Another had same problem:
https://www.ramforum.com/threads/loud-lifters-and-or-rods-in-newly-rebuilt-engine.117756/

 

[Ramnm08]

Got to have installed timing chain/phaser off, probably have bent push rods now.

Excellent write up here:https://www.ramforum.com/threads/how-to-4th-gen-hemi-cam-installation.82531/

Got to have installed timing chain/phaser off, probably have bent push rods now.

Excellent write up here:https://www.ramforum.com/threads/how-to-4th-gen-hemi-cam-installation.82531/

Thats the write up I followed lmao. I'm going to pull the push rods and check them. My cam sprocket/phaser does not have the mark on it like that link shows. There is a mark on the back side of the sprocket that put the cam pin at the 3 o clock position and I'm pretty sure it needs to be at 9 o clock.

 

[Ramnm08]

Also, lied in my original post. No compression in cylinder 1.

 

[Lee Peterson]

The mark on mine lines up with the 1 medium sized hole on the cam phazer, the cam pin slot will be at 12 oclock. The cam pin slot and timing mark are at the same spot.

 

[Ramnm08]

Makes sense. So I'm only 90 out lol. I'll check tomorrow when I tear it back down. So, crank sprocket dimple should be at 6 o clock and cam pin and phaser mark at 12??

 

[Lee Peterson]

Makes sense. So I'm only 90 out lol. I'll check tomorrow when I tear it back down. So, crank sprocket dimple should be at 6 o clock and cam pin and phaser mark at 12??

That's correct.

 

[huntergreen]

Makes sense. So I'm only 90 out lol. I'll check tomorrow when I tear it back down. So, crank sprocket dimple should be at 6 o clock and cam pin and phaser mark at 12??

Sounds like something I would do.

 

[SYKRAMMAN]

Sounds like something I would do.

Me too lol.

 

[jotin]

If you have MDS, did you make sure to put the right lifters in the proper holes? If you put them wrong. You’ll get that issue on startup cause of the lack of lifter prime. It’s odd that you have no compression though, that doesn’t make sense, if your pushrods are bent they wouldn’t be holding a valve open causing no compression. They would be bent and not holding anything open.


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[crackerjack1957]

No compression on #1 most likely bent valve or valves not closing all the way.
That along with bent push rods will happen if timing is off far enough.
Leak down test would confirm on cylinder 1.

 

[Ramnm08]

If you have MDS, did you make sure to put the right lifters in the proper holes? If you put them wrong. You’ll get that issue on startup cause of the lack of lifter prime. It’s odd that you have no compression though, that doesn’t make sense, if your pushrods are bent they wouldn’t be holding a valve open causing no compression. They would be bent and not holding anything open.


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Luckily no mds on this one.

 

[Ramnm08]

No compression on #1 most likely bent valve or valves not closing all the way.
That along with bent push rods will happen if timing is off far enough.
Leak down test would confirm on cylinder 1.

I'm hoping nothing bent or broke due to my stupidity. It ran fine prior to, except for the misfire. I'm going to take it apart tomorrow and check the push rods. I'm hoping just the timing being out is my issue. Not holding my breath but fingers are crossed.

 

[jotin]

What year and model u working on?


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[crackerjack1957]

I'm hoping nothing bent or broke due to my stupidity. It ran fine prior to, except for the misfire. I'm going to take it apart tomorrow and check the push rods. I'm hoping just the timing being out is my issue. Not holding my breath but fingers are crossed.

Hope you get lucky.
Posted a link earlier where a guy did the same thing with timing off.
Know 1 knew he had done that until page 5.
Might want to read:https://www.ramforum.com/posts/1695039/

 

[Ramnm08]

What year and model u working on?


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2011 2500 CC 4x4.

 

[Ramnm08]

Hope you get lucky.
Posted a link earlier where a guy did the same thing with timing off.
Know 1 knew he had done that until page 5.
Might want to read:https://www.ramforum.com/posts/1695039/

At least his valves were good. I didnt hear any noises from the engine other that the starter free spinning. I'll do the leak down when i get the valve covers and accessories off.

 

[chrisp2493]

Hope you get lucky.
Posted a link earlier where a guy did the same thing with timing off.
Know 1 knew he had done that until page 5.
Might want to read:https://www.ramforum.com/posts/1695039/

Man that thread was a disaster. Nobody knew what they were talking about haha


I Bleed Ram Trucks

 

[jotin]

2011 2500 CC 4x4.

Automatic or manual ?


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