I got a quote for a Vac pump @ NAPA. Part # 641008. I asked if the pump was for the Powerstroke or the IDI and he said it only showed one diesel option. Is this for the Stroke or the IDI? Or is this part interchangable?
Thanks
Thad

 

According to Rock Auto. Both 93 NA and turbo pumps were the same A1 Cardone # 641007.
In 94, all 3 diesel options use a 641008.

Jason

 

Just thought I would ask since the parts store is a 45 min round trip drive that I dont want to make more than once.....

Thanks
Thad

 

Just get one for a '93, they use the same serpentine belt and they are only IDI motors so you know you'll get the right one.

 

Yeah, I normally do that but wasnt thinking right after a full day of work....plus they were closing as I walked in.....

Thad

 

i have ran into the same issue on the two part numbers they list it as: NVP 641008 1994-1995 but this is the only one listed for 94. NVP 641007 1992-1993 the difference i noticed in picturesis the outlet for the vacuum hose is turned to the drivers side for the 641007 (192-193) and the 641007 (1994-1995) is turned towards the passengers side. $10 cheaper for the 1994-1995, took a look at my 1994 and it goes out towards the drivers side so ill most likely get the one for 1992-1993

 

I have a '93 non turbo and a 94 IDIT and they definitely do not look like the same pump. I'm needing one for the 94 so I'm also a little confused about which one to get.

 

i can mix things up real good for everyone lol.

i switched to hydroboost brakes and ordered the second gen PSD electric vacuum pump replacement.
Amazon.com: Dorman 904-214 Mechanical Vacuum Pump for Ford Truck: Automotive

if i ever sell this truck before it rusts away to nothing (not likely) the next owner would be lost.

 

If all I needed vacuum for was the HVAC controls, I'd use my EP for fuel And my MP for vacuum.

 

im going electric to free up wasted energy from the engine.
(don't try this without hydroboost brakes of course anyone.they went electric with the super duty because it just provides vacuum for the HVAC,and in their case the locking hubs too i gather.)

im curious as to why you would do this?
are you suggesting that a fuel pump takes less energy from the engine to spin than the vacuum pump? if so,by how much would you estimate?

 

HP=pressure (PSI) times volume (GPM) divided by 1714
24" Hg ~ 12 PSI
Actually no flow but lets just say 1 GPM
HP= (12 X 1)/1714 = 0.00700 HP that's if you have 1GPM flowing less when deadheaded.
Not much to save!

PS: The electric Vacuum Pump doesn't take much power either, it just complicates things a bit more.

 

check this out;
disconnecting extra engine loads: fan, pump, alternator, a/c

 

All that he says is true. Just saying that yes the fuel pump draws power from the engine, BUT it is miniscule at best. That electric vacuum pump draws the same energy fro m the alternator. It's a case of diminishing returns. Kinda like picking the fly poop out of the pepper.

Your electric fans draw power when they operate. Their real advantage is there is no draw when they are not needed.

 

actually,the efficiency of the electric motor is much more than most think.
many think it's just a 1:1 ratio change from swapping from the engine some other place to the alt.
it's not quite so.
on top of that,the vacuum pump and mechanical fan are always spinning 100% of the time.
by ditching the pump,and going electric just for changing where the heat/cold air blows in the cab,reduces this to what? % of the time? (hardly worth measuring if ya know what mean.it wouldn't be even .2% of the time.)

as for the e-fans,those shine pretty much all the time,cus they don't run very often,and when they do,only low to medium for a min or two then right back off.
i think i saw high once,but it was so quick it almost didn't count.
i turn up the dial once in a while,just do i can see the red light indicator so i know it's working lol.
overall id say the fans worked for about 5 mins out of every hour roughly this summer.unless i was poking around in town,through a drive threw etc.then they just kept spinning on low (my slightly green to orange indicator.)
last couple days now though,i haven't heard from 'em in bit.



well,i clearly must be on the right path,as i have a fuel economy average of 14.5 mpg over 70+ tanks (which are pretty much all back to back to correct any errors.i just don't count winter time in when pushing snow around,as i don't feel that is "miles per gallon".)
hauling around a 8k lb empty wind catching dump truck,with regularly 14-16k gross weight and 3.84.1 actual gearing and dual rear wheels,and sucking in fresh air only with no help of a turbo..........yet.
this is stopping and going i would WAG about 5-10 times per hour or so driving.no over the road cruising along for me very often here on Maine secondary/primary hilly terrain roads now.
previous truck for comparison.pretty much stock 96 f150 (but 3.08 to 3.55's) ;
avg fuel economy towing my chipper around was all of 10-14 max,with a 300-6 and stock bed.thats a little light weight gas jobber that could maybe see my empty weight of this truck when loaded lol.

i have a favorite saying;
every mod adds up.

 

well i hope this ends up being the right one but i ordered this tonight.
CARDONE 64-1007 Vacuum Pump | eBay