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88 7.3 IDI question

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Old Feb 19, 2019 | 11:32 AM
  #1  
tanman722001's Avatar
tanman722001
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88 7.3 IDI question

Hi I got a parts truck that has a 7.3 IDI in it. Question what cause it to pop out the intake? Is it a bad injector? Other then that motor runs good. Going to put it into my 86. Thanks Tony
 
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Old Feb 19, 2019 | 07:56 PM
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My guess is valve train issues... stuck or broken valve, worn valve guide, bent pushrod, lifter problem... I'm not sure if a worn camshaft would do it but maybe...

Some guys who are smarter than me will chime in soon...

But the first thing i would do is pull the valve covers and have a look.
 

Last edited by goodB0Y; Feb 19, 2019 at 08:08 PM. Reason: Add valve guides
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Old Feb 19, 2019 | 08:01 PM
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I was a little negligent...lol...I should ask...

When does it do it? Start up? Accelerating? Is it Constant? Only on Wednesday's when it rains?

More information would help...
 
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Old Feb 20, 2019 | 03:16 AM
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Typically this is a valve issue, failed rocker or bent pushrod pull valve covers and have a looksy
 
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Old Feb 20, 2019 | 08:17 PM
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Sounds like a weak lifter to me. Make sure its full of oil, if it is add a quart or marvel mystery oil, it helps clean the lifters.
 
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Old Feb 24, 2019 | 01:25 AM
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Haven't had a change to look into it. Dang 11 days of rain sucks. But it does it start up and acc.. Thanks for the help a little lost. lol
 
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