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Pinging on Highway

 
  #31  
Old 04-14-2019, 07:41 AM
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To the contrary Rock---you've expressed yourself quite well here---at least I think so. I didn't mean to suggest otherwise or that adding a term changes what you were describing.

And I agree with your observations about exhaust flow through the cast manifolds and headers. If I'm not mistaken headers were developed for racing engines rather than attempting to improve stock exhaust systems.
 
  #32  
Old 04-14-2019, 07:56 AM
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I wasn't trying to cause any problems Rock. I like the way you deep dive into how systems work.

I work in the Engineering field of aircraft manufacturing. Airflow is always described using the term pressure differential. Just because a vacuum (negative pressure) is present doesn't always mean there will be airflow.
 
  #33  
Old 04-14-2019, 09:26 AM
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I just hope the OP accidentally put a 1/2 tank of E85 in his tank and that is what caused the pinging. Please keep us apprised of the solution if you find one other than 91 octane fuel.

Don't count out a bad charging system either. Low volts at high load will not power the fuel pump correctly and motor could run lean.

There are just so many things it could be.

Thanks I'm a structural engineer, so that's my excuse for always wanting things in tip top shape. Otherwise bridges and buildings fall down. Guess I'm the same way with my 3 excursions.
 
  #34  
Old 04-14-2019, 12:41 PM
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Originally Posted by rock2610d View Post
I just hope the OP accidentally put a 1/2 tank of E85 in his tank and that is what caused the pinging. Please keep us apprised of the solution if you find one other than 91 octane fuel.

Don't count out a bad charging system either. Low volts at high load will not power the fuel pump correctly and motor could run lean.

.
I've read here on FTE the 3V Modular Motors are particular to driving issues when the voltage and/or current falls below ideal.

Like you though I'm hoping its nothing more than a 1/2 tank of the non-optimal fuel. (Hows that for double speak? )
 
  #35  
Old 04-16-2019, 10:46 AM
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I had a similar problem with my first v-10. It was the fan belt. I accidentally put some soapy water on the serpentine belt and the pinging sound stopped.

Cheap and simple give it a try!
Mac
 
  #36  
Old 04-17-2019, 08:13 AM
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Originally Posted by macaroon View Post
I had a similar problem with my first v-10. It was the fan belt. I accidentally put some soapy water on the serpentine belt and the pinging sound stopped.

Cheap and simple give it a try!
Mac
I've never heard of such a fix----how does that repair a pinging as described by MGraveman?
 
  #37  
Old 04-18-2019, 07:05 AM
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I don't know, I found the cure by accident. I was washing my MH and water got on the belt and the ping stopped.
Mac
 
  #38  
Old 04-22-2019, 01:33 PM
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Well, so far the manifold gasket is replaced and there was a broken plug. Hopefully this takes care of it. Probably wonít know until I run the premium gas theough it.
 
  #39  
Old 04-23-2019, 04:30 AM
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Originally Posted by mgraveman View Post
Well, so far the manifold gasket is replaced and there was a broken plug. Hopefully this takes care of it. Probably wonít know until I run the premium gas theough it.
tell us about the broken plug. Post pics
 
  #40  
Old 04-23-2019, 04:44 AM
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Originally Posted by Im50fast View Post
tell us about the broken plug. Post pics
 
  #41  
Old 04-23-2019, 04:47 AM
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Dude thatís tremendously bad.
Even still I wouldnít mind if you got a better pic.
 
  #42  
Old 04-23-2019, 07:38 AM
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I know the pic sucks. I didnít have time to mess with it. Took it to the mechanic and had him do those while he was doing manifolds, which I was not doing.
 
 


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