1994.5 - 1997 7.3L Power Stroke Diesel

Blown Motor??????

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Old

Sep 17, 2007 | 01:44 PM

#1

powerstroked162

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From: Ellensburg, Washington

Blown Motor??????

I ran the check book hot rod on the dyno today to get a print out for Luke and I think I sqweaked a piston or f'd up a ring. There's a terrible knock comin from the left bank. EGT's are normal, boost is about 6lbs shy of its norm, did I loose a piston?

Cowboy Steve

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Old

Sep 17, 2007 | 02:13 PM

#2

Lead Head

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From: Rhode Island

I think the only way to find out would be to do a compression test. It could also be something like a bent pushrod too.

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Old

Sep 17, 2007 | 04:25 PM

#3

ForemanES

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From: AZ

Your lukes younger twin it sounds. He bent a pushrod (and messed up a couple other things) but was able to drive it a few hundred miles home.

So much for keepin it under 450hp on a stock motor uh lol

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Old

Sep 17, 2007 | 04:35 PM

#4

Cuda_jim

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From: MICHIGAN

Uh OH!, Did you do that to the new truck, Hope not.
X3. pushrod...and a little wishful hoping.
Good luck brother

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Old

Sep 17, 2007 | 05:07 PM

#5

1997F-350

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From: SHELTON, WA

yup its blown send me all the goods over here!!!

time for a high rev kit?

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Old

Sep 17, 2007 | 05:09 PM

#6

ForemanES

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From: AZ

Yep some new better internals need to be in the mix at that level. While you at it you better just give me your d66 because you need something bigger

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Old

Sep 17, 2007 | 05:14 PM

#7

1997F-350

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From: SHELTON, WA

pull your vc off and see whats up

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Old

Sep 17, 2007 | 06:24 PM

#8

powerstroked162

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From: Ellensburg, Washington

Thanks for all the replys. Just cause its blown dosnt mean we're gonna be givin stuff away

lol

I'll pull the VC tonight if I get a chance and see whats up. Thanks fellas

Cowboy Steve

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Old

Sep 17, 2007 | 07:38 PM

#9

lukecline

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From: minneapolis, ks

Quote:

Originally Posted by powerstroked162

I ran the check book hot rod on the dyno today to get a print out for Luke and I think I sqweaked a piston or f'd up a ring. There's a terrible knock comin from the left bank. EGT's are normal, boost is about 6lbs shy of its norm, did I loose a piston?

Cowboy Steve

is it popping from the intake or exhaust, that would be a good indication of a bent pushrod. Any abnormal smoke? First thing id do is pull the vc's and check the rocker arms and pushrods. Second would be a compression test.

Quote:

Originally Posted by ForemanES

Your lukes younger twin it sounds.

ehhh i dont think so, he's got about 4 engines to go

.

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Old

Sep 18, 2007 | 02:24 PM

#10

1997F-350

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From: SHELTON, WA

Quote:

Originally Posted by lukecline

is it popping from the intake or exhaust, that would be a good indication of a bent pushrod. Any abnormal smoke? First thing id do is pull the vc's and check the rocker arms and pushrods. Second would be a compression test.

ehhh i dont think so, he's got about 4 engines to go

.

you better add 4 trucks to that also luke

hope its not to bad there cowboy steve.

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Old

Sep 18, 2007 | 05:46 PM

#11

cookie88

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From: Cabot, Arkansas

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Did you pull the cover? Dave broke a rocker arm a cuple of weeks ago......sounded very similar to your description. Pushrods and rocker arms are an easy fix.

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Old

Sep 18, 2007 | 05:48 PM

#12

powerstroked162

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From: Ellensburg, Washington

Scott, I havent had the chance to pull the VC and see whats up. Im hoping to get to it tomorrow morning. I sure hope its something up top and not a piston rod.

Cowboy Steve

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Old

Sep 18, 2007 | 06:30 PM

#13

cookie88

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From: Cabot, Arkansas

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Quote:

I sure hope its...not a piston rod.

Seems pretty unlikely... This threads a pretty decent read. https://www.ford-trucks.com/forums/6...=bent+push+rod

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Old

Sep 18, 2007 | 06:45 PM

#14

powerstroked162

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From: Ellensburg, Washington

Wanna come pickup my truck for me Scott? haha

Thats a great thread, makes me believe its a valve train issue

thanks for the help

Cowboy Steve

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Old

Sep 18, 2007 | 06:56 PM

#15

cookie88

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From: Cabot, Arkansas

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Sure....I'll be happy to tow you from Washington to Arkansas, just don't lose that checkbook

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