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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.

       
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Old 10-18-2005, 10:58 AM   #1 (permalink)
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alternator belt idler

Anyone ever thought about putting a pulley in our v-belt system to remove some of the slack that the alt. belt has. Mine jumps around quite a bit have even had one jump upside down in the pulley before and believe me the belt was tight! I replaced the idler pulley(serpentine belt) on my wife's suburban a couple months ago and was thinking about making a bracket to hold the idler against the belt to take some of the jump out. Now don't get me wrong, I'm not going to add alot of drag by pushing the idler hard against the belt, just enogh to keep it from flopping so bad.

Any thoughts?
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1989 F250 single cab 2WD
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Single Straight Exhaust with 4" Chrome Tip
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LT 265/75/16 Yokohama AT's on 16x7's
Factory Hubcaps
Gooseneck hitch
Homade rear pipe bumper with built in utility-lights and D-rings
Diamond Plate Aluminum Toolbox
Tinted Windows
Future mods: Roof Markers and front pipe bumper

1997 F250 Extended cab 4x4
PowerStroke Diesel, E40D, Manual Hubs
All Stock Except Exhaust - No Cat, 18" Glasspack
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Old 10-18-2005, 12:40 PM   #2 (permalink)
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Re: alternator belt idler

Yes it has been done Willietwo had pics I believe, there are others who have done it's not too difficult.
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Old 10-18-2005, 12:46 PM   #3 (permalink)
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Re: alternator belt idler

Boy I should have thought of that 10 years ago! You can't believe the number of road calls I've had for thrown belts. Most times downshifting hard. We keep them tight beyond specs and check them every two weeks but still have problems.
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Mine: 91 F250 Reg Cab 4x4 5spd 7.3IDI 4.10LS 145,000 miles. Banks Sidewinder 92 D60 F axle w 97 brakes and Powerlock. Lift: about 4" over stock 250. 33x12.50x16.5 Pro Comp MTs Magnaflow 12" muffler. Sees dirt everyday. Used to haul hay, wood, feed cows, check fence.
Hers: 96F250 CCSB 7.3 PSD 4x4 5spd 3.55 LS 190,000 miles. Puchased 7/03, Looked for a 5spd CCSB for a year!Dana 60 front axle, at stock F350 height (for now) Energy Poly bushings, Bilsteins, 305/70/16 Pro Comps on 16x10 Weld Outbacks, AFE Pro7,TYMAR 3x3.5x4 downpipe,TYMAR 5" straightpipe, gutted EBV, IH Non EBV pedistal,New Alliant AC Injectors,(stage 1)Cal reg kit, SBC Con O clutch, permenent clutch bushing fix, AC mod with a different twist, AMP Powersteps with custom brackets and wiring(one of 2 OBS trucks with them according to AMP) Line of Fire. Sees dirt everyday.
My Company pickup: 86 F250 6.9 C6 320,000 miles Co trucks 5 89 to 94 IDI's, plus about 50 more diesels.
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Old 10-18-2005, 02:47 PM   #4 (permalink)
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Re: alternator belt idler

Anyone have pics of this setupor a link to some?
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1989 F250 single cab 2WD
7.3 IDI with 150,000 miles
Single Straight Exhaust with 4" Chrome Tip
No Soupbowl
E40D
LT 265/75/16 Yokohama AT's on 16x7's
Factory Hubcaps
Gooseneck hitch
Homade rear pipe bumper with built in utility-lights and D-rings
Diamond Plate Aluminum Toolbox
Tinted Windows
Future mods: Roof Markers and front pipe bumper

1997 F250 Extended cab 4x4
PowerStroke Diesel, E40D, Manual Hubs
All Stock Except Exhaust - No Cat, 18" Glasspack
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Old 10-18-2005, 07:58 PM   #5 (permalink)
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Re: alternator belt idler

i know Baja made a bracket: clicky
(click on the 'see all user's photos' link

also, as subtly suggested earlier, try going to the photo link & then searching "willietwo" [img]/ubbthreads/images/graemlins/phoney.gif[/img]
you could always search 'idler' or any word you think one might use to describe their pic (or username)...
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meet Big Black, my 1992 International 3/4 ton pickup wrapped in a Ford skin: 2wd, LWB, N/A 7.3, ZF5, 3.55s. 249k miles.
Amsoil bypass & AF. 3" true duals. no soup for me. 'ghetto' fresh air. Baja block drains. bottle broke. slobber tube. true dual 3" straight pipes. now a TRUE oil burner - she's drinking 15% Bunker Fuel (WMO).
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Old 10-18-2005, 09:41 PM   #6 (permalink)
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Re: alternator belt idler

Here is willies Backside idler.........
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93 F250 7.3 IDI S/C XLT 4X4 E40D 3.55LS, Captains chairs, Tutone Mocha, Leer 48" Hiboy cap, FR & RR hitches, full DeeZee running boards. Factory ordered/delivered Jan 93 has 160K+, it's basically a stock truck with all the Ford options, just no disc player.
Toys: 26'Jayco FK TT, 18'Sylvan Pro Fish.

Proud Canadian BOOB man too!!
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Old 10-19-2005, 01:21 AM   #7 (permalink)
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Re: alternator belt idler

Nice picture Pete [img]/ubbthreads/images/graemlins/smile.gif[/img] It has worked well for 2 years now.

Bob
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1991 F350 / Crew cab , Engine 7.3,E4OD tranny. No Turbo but has propane and pyro gauge. The truck is American, complete with a Miles per Hour speedo. Digital trans. temp gauge and voltmeter. Front Captain seats. Control switches for DRL's , Fog lites, High speed idle, Engine kill and scene lites. On board " York " compressed air, Air horns and built in hose reel behind the rear seat. Power bar distribution box from a 1999 Ford Explorer . Checker plate running boards and Frieghtliner mud flaps. LED turn signals in the factory mirrors. DC to AC inverter to run the coffee maker <img src="/ubbthreads/images/graemlins/smile.gif" alt="" /> Soon to be updated with more toys as time & $$$ permit. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
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