7.3 IDI engine with 5 bent push rods on one side? - Page 2 - Diesel Forum - TheDieselStop.com
7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

 1Likes
Reply
 
LinkBack Thread Tools Display Modes
post #16 of 25 (permalink) Old 05-14-2015, 02:24 PM
Junior Member
 
Join Date: May 2015
Posts: 3
My Photos: (0)
Feedback Score: 0 reviews
Are you certain none of the 7.3 idi engines had no chain? Reason I ask, is that Chiltons seems to indicate, without actually sayin, that ther is a chain. The way this engine died and its erratic compression when turned over now, are charachteristic of a broken chain. Gears almost never go. Engine close to 200k
91 oregon is offline  
Sponsored Links
Advertisement
 
post #17 of 25 (permalink) Old 05-14-2015, 02:59 PM
Senior Member
 
Join Date: Mar 2001
Location: Cody, Wy
Posts: 11,819
My Photos: (27)
Feedback Score: 0 reviews
Quote:
Gears almost never go.
Right, and that's why diesels have gears, not chains.

Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
LMJD is offline  
post #18 of 25 (permalink) Old 05-14-2015, 03:26 PM
Senior Member
 
chuckster57's Avatar
 
Join Date: Apr 2008
Location: Central Valley, Ca.
Posts: 17,604
My Photos: (7)
Feedback Score: 1 reviews
That's why I changed my 86 F250 460 to gear drive. Timing doesn't change with miles.

1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2012 Copper Canyon 273 FWRET w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


PM please not visitor message
chuckster57 is offline  
Sponsored Links
Advertisement
 
post #19 of 25 (permalink) Old 05-15-2015, 09:44 AM
Senior Member
 
Bill1013's Avatar
 
Join Date: Mar 2007
Location: Northwest Ohio
Posts: 3,553
My Photos: (0)
Feedback Score: 0 reviews
I don't see any chains.

99.5 F350 XLT Lariat 4X4 4R100 4.10 DW CC LB Centurion conversion, 183K miles Garret Turbo, Radio SD &Tape, SP Performance 40-60-80 chip, 100 Gal.Transfer Flow W/Trimax Control Aux. fuel tank. ScanGaugeII, Boost, EGT, Trans. Temp. Oil Temp. Build date 03/99

92 F350 2WD 7.3 IDIT E4OD CC LB dually Banks turbo US Gear O/U, 79K on the engine. 129K body.

Have AutoEnginuity W/Ford enhanced. Lima OH area.

My mind works lightening fast. One Flash and it's gone forever.

Last edited by Bill1013; 07-02-2015 at 02:59 PM.
Bill1013 is offline  
post #20 of 25 (permalink) Old 05-15-2015, 09:45 AM
Senior Member
 
Join Date: Nov 2008
Location: Salina, Kansas
Posts: 1,563
My Photos: (0)
Feedback Score: 0 reviews
Could also be an ether start. With the tight clearances, and too big a shot of ether bad things happen.
oldrebuiltdodge is offline  
post #21 of 25 (permalink) Old 05-15-2015, 12:10 PM
Junior Member
 
Join Date: May 2015
Posts: 3
My Photos: (0)
Feedback Score: 0 reviews
Not that ether

Son driving truck, all normal. Died abruptly...no lockup. Cranks over easily, too easily. no, or limited compression. No strangenoises when cranked. No oil, or brown scum in coolant, no water in oil. Before I start wrenching, would like to have an idea what it is. Timing gear stripped? Blown head or head gasket (no exterior sign of leaks? About 200k on motor.
91 oregon is offline  
post #22 of 25 (permalink) Old 05-15-2015, 01:44 PM
Senior Member
 
Join Date: Nov 2008
Location: Salina, Kansas
Posts: 1,563
My Photos: (0)
Feedback Score: 0 reviews
With 5 bent push rods? Pull the cover off of the access to the bolts for the IP gear. look at the bolts that attach the gear to it there should be three of them. It might be that one of them fell out and got caught in the cam gear, causing it to strip the teeth off and loose time. The bent push rods would be from pistons pushing valves shut. If that is the case, I would replace the gears, and push rods, then run a compression check to see if any of the pistons have holes in them, or maybe more likely valves are bent.
oldrebuiltdodge is offline  
post #23 of 25 (permalink) Old 02-10-2019, 02:42 PM
Senior Member
 
Join Date: Sep 2003
Location: nl canada
Posts: 770
My Photos: (1)
Feedback Score: 0 reviews
Check out cavitation....do a search....have seen 2 7.3 idi with that problem.

1992 f-350.4x4 srw.rebuilt e4od.rebuilt injection pump. no soup bowl,no muffler,straight pipe.. 8 foot power angle Artic blade/7 1/2 ft p/a Fisher blade. 280,000kms and counting.Paint to come.
pnose is offline  
post #24 of 25 (permalink) Old 02-10-2019, 05:14 PM
Senior Member
 
Join Date: Mar 2001
Location: Cody, Wy
Posts: 11,819
My Photos: (27)
Feedback Score: 0 reviews
Hopefully he's got it running by now, his post is 4 years old.

Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
LMJD is offline  
post #25 of 25 (permalink) Old 02-11-2019, 03:41 PM
Senior Member
 
Join Date: Aug 2007
Location: California
Posts: 2,000
My Photos: (0)
Feedback Score: 0 reviews
Let me set the record straight in case there are some who still aren't sure. The engine does not have a timing chain. It does have timing gears. Here are links to some pictures in case you still are unsure.

http://www.blackwire.com/~bjordan/Te....3_IDI_101.pdf


Aligning the IP Timing, Camshaft, and Crankshaft Gears on a 6.9 / 7.3 IDI Engine ? IDI Online
LMJD likes this.

2001 F350 XLT 4X4 crew cab, dual rear wheels, long bed, black, 7.3l turbo diesel, automatic transmission, 4.10, shift on the fly, running boards, sliding rear window, 38 gal fuel tank, Odyssey extreme 65-PC1750T batteries, Michelin LTX-MS2 rear tires, Sumitomo Encounter front tires, Shell Rotella Ultra elc, 11,500 gvwr, 20,000 gcwr, 7500 gvw, completely stock, 114,000 miles when purchased, now has 250,000 miles, repairs so far: two starters, batteries, cps, brakes, tires, alternator, ball joints, locking hub, wheel hub, AC compressor, serpentine belt, power steering pump, driver's side window, ignition switch, o-ring, Spectra premium radiator, water pump, fan clutch, fan blades, thermostat, thermostat housing, tensioner. Stolen twice so far, but recovered both times with major damage.

2005 Nomad Rampage toyhauler made by Skyline. 11,500lb gvwr.
DonWarkentin is offline  
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome