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post #1 of 5 Old 03-18-2012, 07:19 PM Thread Starter
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blow-by

hey i have a 95 f250 7.3 psd with blow by and i was just curious if blow by could be caused by the injectors?
im pretty sure its a piston ring but just wondering

1995 f250 7.3l psd 4x4
265,000+
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post #2 of 5 Old 04-01-2012, 05:23 AM
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You are correct that excessive blow-by is a base engine symptom - cylinder related specifically. If you repair the engine you need to identify and correct the root cause of the engine wear or damage. Most commonly with the early model year 7.3L Power Stroke engines the air filter housings and inlet ducting were prone to poor sealing and leaks.

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post #3 of 5 Old 04-01-2012, 06:01 AM Thread Starter
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Quote:
Originally Posted by FordDoctor View Post
You are correct that excessive blow-by is a base engine symptom - cylinder related specifically. If you repair the engine you need to identify and correct the root cause of the engine wear or damage. Most commonly with the early model year 7.3L Power Stroke engines the air filter housings and inlet ducting were prone to poor sealing and leaks.
ya i have been trying to figure out what caused it because my truck only has 260,000 it shouldnt be having blowby in my opinion so i think the previous owner ran the **** out of my truck
but anyway could it be caused by bad injectors? i know that they arent in the best condition but they arent completely gone yet i was gonna replace those while i was digging in the engine

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post #4 of 5 Old 04-01-2012, 06:05 AM
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How much blowby are we talking? Some amount of blowby is completely normal.

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1996 F250 7.3 PSD 4x4 - "Dally"
270k miles
It's got some go fast stuff
Sitting on 2006 F-350 axles and suspension

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post #5 of 5 Old 04-01-2012, 06:10 AM Thread Starter
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Originally Posted by nine6stroker View Post
How much blowby are we talking? Some amount of blowby is completely normal.

Sent from my DROID X2 using AutoGuide.com App
its excessive i know that some is good where there is only a little smoke but this is pumping out smoke

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