This is getting old pretty fast...
Thread Starter
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Posting Guru
Joined: Jul 2008
Posts: 1,151
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From: Blackwater, VA
so my best bet is probably to replace as unit (pump and pulley)? local parts places have reman. pumps around $100, will have to get pulley through Ford and then sweet-talk my boys into helping me, cause I honestly wouldn't know where to start.
also- I tried to pick-up a new drive belt, but the guy at AutoZone said the computer showed two models, one 1/2" longer than the other. anyone run into this?? any brands that are better than others? the one she just ate was a Gatorback
one of my buddies thinks we might be able to weld the current pulley back into place...or he found me a new pump on eBay for $94
and to vent on a side note...the kid working at Advance stood there and tried to tell me that the 6.4 L is sooo much better and fewer problems and blah blah bah...
*grumbles* I told him not to waste his breath...
also- I tried to pick-up a new drive belt, but the guy at AutoZone said the computer showed two models, one 1/2" longer than the other. anyone run into this?? any brands that are better than others? the one she just ate was a Gatorback
one of my buddies thinks we might be able to weld the current pulley back into place...or he found me a new pump on eBay for $94
and to vent on a side note...the kid working at Advance stood there and tried to tell me that the 6.4 L is sooo much better and fewer problems and blah blah bah...
*grumbles* I told him not to waste his breath...
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Yea, never weld a pully.
Bad news in the end.
If its a trail truck, or a demo car, blah blah. yea, then weld away.
But for your every day ride, fix it right. =)
Gatorbacks are the shiz. Lifetime warrenty!!!!!
I'm not sure where the 1/2 inch difference will come from.
Check your tensioner pully to see how much force its applying to the pully. If it is at the end of the swing to apply tension, get the smaller of the 2 belts.
Any autozone personel is "supposto" (key word) be able to remove your serpentine belt and mesure it for you to get you a new one.
If they are too dumb to do this, find you a new place to buy parts.
Bad news in the end.
If its a trail truck, or a demo car, blah blah. yea, then weld away.
But for your every day ride, fix it right. =)
Gatorbacks are the shiz. Lifetime warrenty!!!!!
I'm not sure where the 1/2 inch difference will come from.
Check your tensioner pully to see how much force its applying to the pully. If it is at the end of the swing to apply tension, get the smaller of the 2 belts.
Any autozone personel is "supposto" (key word) be able to remove your serpentine belt and mesure it for you to get you a new one.
If they are too dumb to do this, find you a new place to buy parts.
Elder User
Joined: Mar 2005
Posts: 532
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From: azle texas
The vac pump is supposed to make 1/4 or 1/2 turns isn't it? I am in the process of changing out my water pump (it has a decent wobble). I did not think it was supposed to spin freely. It is similar to a small compressor right???
Junior User
Joined: Aug 2008
Posts: 66
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find a motorcraft pump. very good luck with those over parts store pumps. I have 4 or 5 new ones on the shelf along with pulleys. fordparts.com has good prices on OEM stuff (or I'm sure there's another sponsor here too). The pulley might not be bad, but if you don't use the ford style pulley puller you can warp it. Only the center of the pulley is ment for the installation/removal pressure.
Mountain Pass
Joined: Dec 2005
Posts: 137
Likes: 0
In response to :
"My buddy and I pulled the belt out- my vacuum pump is the issue again, just like last time. It keeps working its way out of alignment and then the fan hits the edge of the belt. It also looks like the bolt that should prevent that is missing. I'm hoping really hard that putting in a new bolt will solve this- any other theories??"
The vac pump shaft has a 3/8 threaded hole. There is not supposed to be a bolt in it. This is usually just used for pressing on the pulley. If the press fit is good the pulley should not be working its way off the shaft. With that said, last time I had to replace my vac pump I pressed it on with a longer bolt and then put a short ( 3/4" or 1" i think) 3/8"-16 bolt and washer and snugged it down on the pulley just for extra security. You may want to try this to fix your problem.
"My buddy and I pulled the belt out- my vacuum pump is the issue again, just like last time. It keeps working its way out of alignment and then the fan hits the edge of the belt. It also looks like the bolt that should prevent that is missing. I'm hoping really hard that putting in a new bolt will solve this- any other theories??"
The vac pump shaft has a 3/8 threaded hole. There is not supposed to be a bolt in it. This is usually just used for pressing on the pulley. If the press fit is good the pulley should not be working its way off the shaft. With that said, last time I had to replace my vac pump I pressed it on with a longer bolt and then put a short ( 3/4" or 1" i think) 3/8"-16 bolt and washer and snugged it down on the pulley just for extra security. You may want to try this to fix your problem.
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Posting Guru
Joined: Jun 2005
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all the oil on the vac pump makes me think its about to go out and that pully defently looks like the pully is out of alignment i would replace the pump and the pully, you can get an aftermarket pump for about $100
Thread Starter
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Posting Guru
Joined: Jul 2008
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From: Blackwater, VA
also considering doing this eBay Motors: 96 97 98 Ford F450 7.3L Diesel Vacuum Pump (item 180285327772 end time Sep-05-08 12:43:30 PDT)
and getting the pulley from Ford. it says "450" in the item title but the part number matched up when I checked...please please please catch me if I'm wrong!
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
I would get new and not a rebuild....reports of them going bad too sonn
From the PSD part# link in my signature
Vacuum Pump
* (Autozone) 64-1008 (94-95)
* (Autozone) 64-1024 (96-97)
* (Ford) F4TZ-2A451-A (94-95)
* (Ford) F6TZ-2A451-AA (96-97)
* (Kragen/Partsamerica) 641008 (94-95)
* (Kragen/Partsamerica) 641024 (96-97)
* (Napa) 641 008 (94-95)
* (Napa) NVP641024 (96-97)
Vacuum Pump Pulley
* (Ford) F5TZ-2L487-A (94-95) ???
* (Ford) F5TE-2L487-AA (96-97) ???
From the PSD part# link in my signature
Vacuum Pump
* (Autozone) 64-1008 (94-95)
* (Autozone) 64-1024 (96-97)
* (Ford) F4TZ-2A451-A (94-95)
* (Ford) F6TZ-2A451-AA (96-97)
* (Kragen/Partsamerica) 641008 (94-95)
* (Kragen/Partsamerica) 641024 (96-97)
* (Napa) 641 008 (94-95)
* (Napa) NVP641024 (96-97)
Vacuum Pump Pulley
* (Ford) F5TZ-2L487-A (94-95) ???
* (Ford) F5TE-2L487-AA (96-97) ???
Thread Starter
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Posting Guru
Joined: Jul 2008
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From: Blackwater, VA
so, anyone with a lot of patience care to explain the replacement process to me? I haven't done much of anything mechanical on the truck yet...not much confidence in my ability, plus have to bum tools off my buddies cuz I have none
...but I miss my truck...terribly
Fleet Mechanic
Joined: Aug 2007
Posts: 1,508
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From: The boonies by Dallas OR
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
Does this mean the pulley is difficult to turn by hand?
Vacuum Pump Replacement:
Try this link, it may go to the page you need
http://www.motorcraftservice.com/renderers/reload_frames.asp?leftside=/pubs/content/~WSVO/~MUS~LEN/24/SVOS67BL.HTM&rightside=/pubs/content/~WSVO/~MUS~LEN/25/SVOS67BR.HTM&contenttype=WORKSHOP&workunit=SVO&mar ket=US&language=EN&viewer=IE
If it doesn't work....Click the link in my signature for a Factory Service Manual online.
You will need a couple special tools....fan clutch wrenches and pulley remover/installer.
Most mega-auto part stores will loan them to you for free.
Vacuum Pump Replacement:
Try this link, it may go to the page you need
http://www.motorcraftservice.com/renderers/reload_frames.asp?leftside=/pubs/content/~WSVO/~MUS~LEN/24/SVOS67BL.HTM&rightside=/pubs/content/~WSVO/~MUS~LEN/25/SVOS67BR.HTM&contenttype=WORKSHOP&workunit=SVO&mar ket=US&language=EN&viewer=IE
If it doesn't work....Click the link in my signature for a Factory Service Manual online.
You will need a couple special tools....fan clutch wrenches and pulley remover/installer.
Most mega-auto part stores will loan them to you for free.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
I took a look at the pics on the previous page.
That idler pully definatly looks bad to me.
You can see that its not wearing evenly with the belt.
There should be no discolorations in the surface. it should all be smooth and metal colored, unless its plastic, then you should see and even wear pattern acrost the pully.
That idler pully definatly looks bad to me.
You can see that its not wearing evenly with the belt.
There should be no discolorations in the surface. it should all be smooth and metal colored, unless its plastic, then you should see and even wear pattern acrost the pully.