Noisy clutch - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 10 (permalink) Old 11-15-2018, 11:56 PM Thread Starter
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Noisy clutch

I’m getting a lot of noise when shifting. Replaced hydraulics about 6 months ago, now have a deep growl and rough feeling clutch pedal. Is this the sound of impending doom of the throwout bearing, pilot bearing or? Truck is a 1999.5 with 126500 on it. TIA
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post #2 of 10 (permalink) Old 11-16-2018, 01:10 AM
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My guess would be a worn throwout bearing, but noises can telegraph all over the place.
About the only way you could find out for sure would be to pull the tranny.

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
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post #3 of 10 (permalink) Old 11-16-2018, 06:56 AM Thread Starter
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I was pretty sure that was the case. Any brand throwout bearing better than another? I figure if I need to pull the transmission I’ll put bellowed uppipes in too, since the right side has a good leak when cold that is getting worse. What about the clutch fork? I recall there was an improved one for different years.
Thanks
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post #4 of 10 (permalink) Old 11-16-2018, 06:56 PM Thread Starter
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Well, I think the whole thing is toast now. Pulled my horse trailer about 250 miles and pedal feels really coarse and have to be real quick to shift gears or even pump it in neutral to make the shifts. Any recommendations for a 300 HP clutch?
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post #5 of 10 (permalink) Old 11-16-2018, 09:13 PM
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I've got a South Bend ConOFE in mine, and happy with it. They're a little spendy and you'll need the entire kit, including flywheel. Another option is a LUK clutch, available thru NAPA stores, but I have no idea what HP they're rated for. Both will give you a very light clutch pedal feel and you may need to remove the pedal assist spring on the pedal to keep it from sticking to the floor at higher RPMs.
Good idea on replacing the up-pipes when the tranny is out. Makes it a LOT easier.
Your truck likely has the older weaker clutch fork, I know that my 1/99 build truck did, and although I never had problems with it, I replaced it when I put the SB clutch in. IIRC, South Bend's kits come with a throwout bearing, and can supply a clutch fork as well. I think they source them both through Ford, so you could buy them thru your local dealer or order from AutoNation Ford White Bear Lake (site sponsor who sell at a discount.)

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #6 of 10 (permalink) Old 11-19-2018, 12:57 PM Thread Starter
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This morning can’t even push clutch in. Started it by jumping the starter solenoid to have steering and brakes and pushed it in front of my shop. Lots of metal grinding smoke like throwout bearing chewing on clutch diaphragm I hope. Guess I’ll see what’s trashed next week.
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post #7 of 10 (permalink) Old 11-21-2018, 03:30 PM
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Originally Posted by Buffalohead1 View Post
This morning can’t even push clutch in. Started it by jumping the starter solenoid to have steering and brakes and pushed it in front of my shop. Lots of metal grinding smoke like throwout bearing chewing on clutch diaphragm I hope. Guess I’ll see what’s trashed next week.
Hows the projrct going?


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2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
NOS Black CPS. ScanGauge-II, AIC, Bilstein 5100, Stancor GPR, Marinco Mod, B&W Turnover Ball, Michelin Defender LTX


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2002 F-250 4x4 SC LB 7.3 PSD w/ZF-6. 177,000 miles.
NOS Black CPS. ScanGauge-II. Bilstein 5100. Noco Mod. Michelin Defender LTX 285/75/16.

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2000 F-250 4x4 SC SB 7.3 PSD w/4R100. 164,000 miles.
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post #8 of 10 (permalink) Old 11-21-2018, 05:14 PM Thread Starter
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Haven’t touched it yet. Was in the middle of replacing windows and siding on my house when it quit. I will update when I pull it apart.
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post #9 of 10 (permalink) Old 03-20-2019, 12:12 PM Thread Starter
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Replaced with SouthBend clutch and hydraulic system. So much lighter and smoother. Throwout bearing had blown apart. Clutch fork nearly chewed through. All on the road again!
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post #10 of 10 (permalink) Old 03-21-2019, 02:16 AM
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Cool! Glad you got it going again.
Thanks for the update.

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'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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