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Now I have a broken pushrod

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Old May 9, 2020 | 10:47 PM
  #21  
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Safest thing to do is pull the intake and take a good look at it. It could be a lot of things could have caused it and you can't properly diagnose it unless you pull the intake.
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Old May 10, 2020 | 04:55 AM
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Old May 10, 2020 | 08:04 AM
  #23  
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Well, if I was the builder of that engine, and the customer has been "working" on the engine, and now has broken a rod, has a lifter stuck, etc, and has messed around with it, no amount of pictures or talk would convince me it was my problem to rectify now.

Sorry, but the OP is way past trying to blame someone else for the problem.
I think he adjusted the rocker and it was not correct. Then he cranked the engine and it broke the rod. The rod did not just break for no reason!


Last edited by KenSny; May 10, 2020 at 08:05 AM.
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Old May 10, 2020 | 08:18 AM
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if lifter is stuck up magnet won't get it, i don't think. but you got plenty to grab with vise grips. pull that lifter and look it over. look down lifter bore and turn engine over while shining light on the lobe. then see if another lifter fits well. if so, try cranking engine with replacement lifter and see if it gives the approx .300 travel it is supposed to. then consider a roller cam and roller lifters. more effective lift and duration with less actual lift and duration. flat tappet's first name is flat...
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Old May 10, 2020 | 08:45 AM
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It is a roller cam. Guess I'll find out soon enough.
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Old May 10, 2020 | 09:03 AM
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already roller lifters? then the roller came off the bottom of the lifter. you got a roller, needles, a pushrod end all floating around in the bottom of your engine. pan is coming off at the least. how much did the set of lifters cost? how much did they SAY the lifters cost? 150 dollar rollers are overpriced, cuz they are worthless ****. 600 buck rollers are in the ballpark. they coulda charged you 600 for 150 buck ebay rollers...
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Old May 10, 2020 | 09:12 AM
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pull the intake

and we need pics too
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Old May 10, 2020 | 09:45 AM
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Originally Posted by derekderek
already roller lifters? then the roller came off the bottom of the lifter. you got a roller, needles, a pushrod end all floating around in the bottom of your engine. pan is coming off at the least. how much did the set of lifters cost? how much did they SAY the lifters cost? 150 dollar rollers are overpriced, cuz they are worthless ****. 600 buck rollers are in the ballpark. they coulda charged you 600 for 150 buck ebay rollers...
It's a Lunati Voodoo cam and roller lifters set and I sure hope you are not right.

Originally Posted by dmaxx3500
pull the intake

and we need pics too
getting ready to go work on it
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Old May 10, 2020 | 12:46 PM
  #29  
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The lifters are not budging, they are completely stuck in the bores. I'm afraid to go trying to pull them out with vise grips or something for fear of tearing up something else. I suppose I've gone as far as my limited abilities will take me. Should I go ahead and try to remove them?


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Old May 10, 2020 | 01:27 PM
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If it were mine & I did Not have another good block in the corner ...and I had No recourse w/ builder ... I'd TRY to save lifter bores ... pull motor ... remove pan and look for debris and look up into cam for damage ... remove cam sprocket ... remove fuel pump & rod ... remove cam expansion plug at rear of block .. TRY to remove cam from rear while jostling/manipulating damaged front lifters on cyl #2 ... determine if damaged portions of lifters can be cut/straightened enough to remove without wrecking bores.

Failing that, damaged bores Can be repaired / bushed ..$$$$$
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Old May 10, 2020 | 02:27 PM
  #31  
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Originally Posted by Capt. Shark
The lifters are not budging, they are completely stuck in the bores. I'm afraid to go trying to pull them out with vise grips or something for fear of tearing up something else. I suppose I've gone as far as my limited abilities will take me. Should I go ahead and try to remove them?

Sure looks dry in there.
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Old May 10, 2020 | 03:25 PM
  #32  
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I kinda thought so as well
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Old May 10, 2020 | 03:33 PM
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Well, I found the pushrod end jammed between the block and the lifter. Managed to drive it out with a screwdriver and a BFH.




The lifters came right out and they looked OK. Put them back in, turned the engine through a few rotations and they are both moving up and down freely.



Got all the new pushrods installed, valves adjusted and poly locks installed, all but one that was on the wonky valve. The threads are messed up. I still think there was something wrong with that valve and rocker. It was not showing as much thread above the nut as all the others but now it's showing just as much. Probably have to buy a whole new set of locks to get just one.

I'll get a new gasket today and put it all back together tomorrow. And then go back to my original problem. I'm sure hoping it's just the plug wire.

Gotta love it, right?


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Old May 10, 2020 | 03:37 PM
  #34  
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Originally Posted by Big2Bird
Sure looks dry in there.
I think that's from sopping up the gas that dripped in there from the fuel line. I do think I will pour a little oil over everything before I put the intake back on, though.
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Old May 10, 2020 | 03:45 PM
  #35  
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So the pushrod end hung the lifter up. Best of all possible worlds. And you have all the stray metal pieces. Reassembled and correct valve travel? Also possible valve was held open and hit piston and is bent. Something broke the pushrod before broken end was free to wreak it's own havoc.

Last edited by derekderek; May 10, 2020 at 03:47 PM.
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Old May 10, 2020 | 03:55 PM
  #36  
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Originally Posted by derekderek
So the pushrod end hung the lifter up. Best of all possible worlds. And you have all the stray metal pieces. Reassembled and correct valve travel? Also possible valve was held open and hit piston and is bent. Something broke the pushrod before broken end was free to wreak it's own havoc.
Don't be rainin' on my parade

The pushrod didn't actually break while the motor was running, I think it broke as I was backing off the adjustment nut so maybe not.
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Old May 10, 2020 | 04:49 PM
  #37  
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in the pic of a lifter pair on bench ... the one on Left (I think intake cyl #2) ... I think that's same one that had wedged PR tip ... its oil band appears either wet w/ sweat or dinged up.
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To Now I have a broken pushrod

Old May 10, 2020 | 04:53 PM
  #38  
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You might wanna get a threading die and clean up that rocker stud thread. 3/8ths 24 tpi. Standard sae fine thread.

Last edited by derekderek; May 10, 2020 at 04:54 PM.
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Old May 10, 2020 | 05:04 PM
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Originally Posted by jackson
in the pic of a lifter pair on bench ... the one on Left (I think intake cyl #2) ... I think that's same one that had wedged PR tip ... its oil band appears either wet w/ sweat or dinged up.
Maybe I should just replace them to be sure?

Originally Posted by derekderek
You might wanna get a threading die and clean up that rocker stud thread. 3/8ths 24 tpi. Standard sae fine thread.
I will do that. Thanks.
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Old May 10, 2020 | 05:08 PM
  #40  
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If it's liquid, simply clean it off ... but ...
... if it's beat up ... replace.
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