Has anybody ever made or seen a homemade belt tensioner for the 7.3 IDI alternator belt? My belt seems to be boouncing a good 1.5 inches when idling and is set to the correct tension. It's the only 1 doing it but is also the longest run out of all of them. Thanx for any input or info.
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1990 F350 7.3 IDI
8" all spring lift
36" x 13.50 Irocs
Full Hydo steering
There have been members put an idler on that belt .......... unfortunately there are no pics available right now in the photo section. One member had his pics on an off forum link......
__________________ http://photos.thedieselstop.com/show...0/ppuser/28329
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!!
Last edited by cdnsarguy : 01-26-2008 at 10:31 PM.
FWIW, the idler works great. I just fabricated a little bracket that held the pulley, and then welded that bracket to the bracket that bolts to the water pump that's used for adjusting the alternator tension. Sorry, no pictures here either, don't have a digital camera
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1986 F250 2WD Super Cab XLT Lariat w/ 1996 front clip. Dually bed & van rearend (2" wider, allows spring clearance). 6.9 w/ approx 120,000mi. Banks non-wastegated turbo system, Beru ZD1A glowplugs, Delphi BB injectors, Kenworth pyrometer, vac/boost gauge, electric water temp/oil psi/voltmeter mounted in dash. 3" Mandrel-bent open exhaust. C6 trans, 3.54 gears. Okiegringo idler pulley. R134a A/C conversion. WMO/diesel blend in one tank.
Hey its been done before that's all I needed to hear. Thanx guys for a quick response. I'll be sure to post some pics of what I come up with for everyone else who comes across this problem. Thanx again
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1990 F350 7.3 IDI
8" all spring lift
36" x 13.50 Irocs
Full Hydo steering
There is a good chance your water pump pulley is bent adding to the bouncing of the belt. If this vehicle has ever lost the Alternator belt your water pump pulley may be bent, if during loss of this belt or soon there after the AC and or the PS belt broke too, your water pump pulley is bent. The water pump pulley should be checked and replaced if necessary.
Also use the following belt and DON'T over tighten!
Recommended Alternator Belt: Gates HD #5726
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Regards,
Paul - Pocono Mtns. USA '90 E350 7.3L Ex-Ambulance High Top 400K Miles, No Turbo, Stock Stock stock, 10 oz. Bars Stop Leak and No ELC!
Reggie, go purchase a(short) # 17425 belt and be done with the vibrating (long) alt belts that snap and take the others with it!
I've had mine on for years...never a problem.
*Ps it goes from the water pump pulley to the alt.
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88 F 250 7.3 Super Cab XLT Lariat4X4...Cream Puff
81 Corvette...Pampered
Harley Shovel 88" Show Stoper...WOW
BBC 468 Jet Boat...Gotta get Wet!
It's the Women that cost me the $$$$
Hey thanx for all the helpful info. I will definitely check into the bent shaft but if a shorter belt will remedy the problem I'm going to start with that fix first. I kind of like the idea of a little helper tensioner on that long belt though, so maybe I'll do both. Non the less pics and results will be posted. thanx again guys
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1990 F350 7.3 IDI
8" all spring lift
36" x 13.50 Irocs
Full Hydo steering
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