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General Discussion
Bent valve push rod...
 
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Bent valve push rods on my 361 engine; a pictorial history.

 
General Discussion
Last Post by SteveMcManus 12 years ago
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 StanPhillips
(@stanphillips)
Eminent Member
Joined: 15 years ago
Posts: 18
Topic starter January 27, 2013 5:02 pm  

I thought I'd share a photo of the bent valve rods that were in my 59 Firesweep engine; the bottom rod is present for comparison purposes.
Note: one was bent (third from the top) so much that it actually was chafing on the sides of its shaft.

For that longest time, I wondered why the right side of the engine emitted a clacking, rapping, etc. sound, but it minimized in volume once it got up to operating temp. The noise was bad around the fuel pump area, so I R&R'd the pump and, sure enough, the sound was still there!

Long story short, I found a mechanic, yes, with gray hair, and he quickly discoved the misshapen rods.

So, I am happy to report all is well with the engine and I'm looking forward to enjoying it for many more miles.


   
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 Anonymous 56
(@Anonymous 56)
Joined: 15 years ago
Posts: 376
January 27, 2013 8:39 pm  

What is the usual cause of this? Would it be spark plug wires on the wrong terminals and/or the timing is way off? I bring this up since there was a post concerning location of spark plug wires.


   
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 RodgerReddish
(@rodgerreddish)
Reputable Member
Joined: 15 years ago
Posts: 393
January 27, 2013 9:28 pm  

Gents

This is one of those things that happen when the operator over-rev's
The RPM's of the engine - Times The Crank Shart to Cam Shaft
in-correctly or a couple of like different items.

Rodger & Gabby
COS

FltSgt@outlook.com


   
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 MarkWaite
(@markwaite)
Estimable Member
Joined: 15 years ago
Posts: 84
January 28, 2013 9:47 am  

Let's hear it for the gray haired people !! ( Of course I am one ! )

Mark Waite


   
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 SteveMcManus
(@stevemcmanus)
Reputable Member
Joined: 15 years ago
Posts: 382
January 29, 2013 8:12 am  

The most common cause of this on a B block MoPaR would be turning the engine over with stuck valves.

Have a nice day
Steve


   
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