Day with an OBS - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 8 (permalink) Old 08-10-2018, 03:59 PM Thread Starter
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Day with an OBS

For several weeks my battery light would flicker and was probably the early sign the tensioner assembly was going out....This same thing happened with my 87 IDI. Obviously I did not learn.

On my way home Tuesday from Winston Salem and hear the dreaded sound of Belt Break.

Broke my rule of taking everything out of truck to clean it the prior weekend after vacation, so not one d**n tool in truck.

Second rule broken, was not having a spare belt as usual.

I give truck a roadside diagnosis and appears belt just snapped. Nothing loose or seized.

I run to Oreilly's and get a new belt and home for tools.

I replace belt and all appears good, take off home and less than 5 miles I see battery light and start losing power steering, etc.

I get to a local store and pull up to pump for fuel. Temp light comes on 500' feet before stopping. I get out and no vacuum pump. See pictures.

I make another trip to Oreilly's and buy a new vacuum pump. Install in parking lot during thunderstorm and then tensioner gives as I try to reinstall belt. I would have bought one but store did not have one in stock and it was 8:30pm.

I am done at this point. I head home and regroup, we trailer truck to house at 11 pm.

Next day pick up new tensioner and put it all back together. She is purring like a kitten.

Any thoughts on what caused VP failure? It was a used part from a spare engine @ farm.

https://imgur.com/a/CA004Oc

1996 F350 XL Crew Cab LB 4x4 3:55
Former Ft. Bragg/Pope AFB Truck
DieselSite Coolant Filter
Riff Raff Diesel Turbo & Y Boot Kit
Riff Raff Diesel HPX
Mile Marker 449SS Manual Hubs

1987 F250 XLT Lariat LB 2WD 4:10
6.9/7.3 IDI Swap-SOLD
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2010 John Deere 5055D

1974 Deutz 5506
2950 hours-"The Tank"
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post #2 of 8 (permalink) Old 08-10-2018, 04:35 PM
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Re: Day with an OBS

Send that gates tensioner back they are junk. get a real motorcraft tensioner or u will not be happy.

"Y'all have a wonderful"
"My name is Bob the guy floating in the lake with no arms and no legs"
TSGT Bob W Martin USAF 1948-2014


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Upgrades:
|Bellowed UpPipes|160CC Injectors|Adrenaline HPOP|Rebuilt Turbo 360 Bearing|Custom E-Fuel|Manual to Auto Conversion
|Delete Pedestal|3" Down Pipe 4" Exhaust|Dual Tensioner and Belt|Stainless Steel HPX Crossover|Custom Banks InterCooler
|42 Gal Rear Tank 35 Gal Front Tank |DP Infinity Tuner
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post #3 of 8 (permalink) Old 08-10-2018, 04:49 PM
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Re: Day with an OBS

Looks like a bearing failure

96 F350 rclb drw 2wd psd (built not bought)
01 Excursion Limited 4wd psd (the wifes ride)
02 F350 cclb drw 4wd psd (the land yacht)

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post #4 of 8 (permalink) Old 08-10-2018, 05:31 PM
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Re: Day with an OBS

Update that tensioner to a dual tensioner too

96 F350 rclb drw 2wd psd (built not bought)
01 Excursion Limited 4wd psd (the wifes ride)
02 F350 cclb drw 4wd psd (the land yacht)

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post #5 of 8 (permalink) Old 08-10-2018, 05:40 PM Thread Starter
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Re: Day with an OBS

Quote:
Originally Posted by masakimm View Post
Send that gates tensioner back they are junk. get a real motorcraft tensioner or u will not be happy.

"Y'all have a wonderful"
"My name is Bob the guy floating in the lake with no arms and no legs"
TSGT Bob W Martin USAF 1948-2014
I agree. I had to take what was available to get by, Hell it says China on the pulley, at that point I knew. Will move on this.
Attached Images
File Type: jpg BT44_tensioner.jpg (11.3 KB, 13 views)

1996 F350 XL Crew Cab LB 4x4 3:55
Former Ft. Bragg/Pope AFB Truck
DieselSite Coolant Filter
Riff Raff Diesel Turbo & Y Boot Kit
Riff Raff Diesel HPX
Mile Marker 449SS Manual Hubs

1987 F250 XLT Lariat LB 2WD 4:10
6.9/7.3 IDI Swap-SOLD
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2010 John Deere 5055D

1974 Deutz 5506
2950 hours-"The Tank"

Last edited by HilhavenFarm; 08-10-2018 at 05:56 PM. Reason: add photo
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post #6 of 8 (permalink) Old 08-10-2018, 05:41 PM Thread Starter
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Re: Day with an OBS

Quote:
Originally Posted by heavydoc View Post
Update that tensioner to a dual tensioner too
This incident made me research options. Is this the same as SD conversion?

1996 F350 XL Crew Cab LB 4x4 3:55
Former Ft. Bragg/Pope AFB Truck
DieselSite Coolant Filter
Riff Raff Diesel Turbo & Y Boot Kit
Riff Raff Diesel HPX
Mile Marker 449SS Manual Hubs

1987 F250 XLT Lariat LB 2WD 4:10
6.9/7.3 IDI Swap-SOLD
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2010 John Deere 5055D

1974 Deutz 5506
2950 hours-"The Tank"
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post #7 of 8 (permalink) Old 08-10-2018, 06:18 PM
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Re: Day with an OBS

Quote:
Originally Posted by HilhavenFarm View Post
This incident made me research options. Is this the same as SD conversion?


Yep

96 F350 rclb drw 2wd psd (built not bought)
01 Excursion Limited 4wd psd (the wifes ride)
02 F350 cclb drw 4wd psd (the land yacht)

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post #8 of 8 (permalink) Old 08-10-2018, 06:29 PM
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Re: Day with an OBS

if u want to do the dual tensioner go online and get a BT-50 motorcraft tensioner. the mod is easy to do.

"Y'all have a wonderful"
"My name is Bob the guy floating in the lake with no arms and no legs"
TSGT Bob W Martin USAF 1948-2014


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Upgrades:
|Bellowed UpPipes|160CC Injectors|Adrenaline HPOP|Rebuilt Turbo 360 Bearing|Custom E-Fuel|Manual to Auto Conversion
|Delete Pedestal|3" Down Pipe 4" Exhaust|Dual Tensioner and Belt|Stainless Steel HPX Crossover|Custom Banks InterCooler
|42 Gal Rear Tank 35 Gal Front Tank |DP Infinity Tuner
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