Vacuum Pump Oil Line

#1

When I had the alternator out to do preventative maintenance (check bearings, connections, replace brushes, etc), I noticed the oil line feeding the vacuum pump was made of rubber. This hose feeds off the gallery feeding the oil cooling jets so there is close to system pressure present. Since this line was 23 yrs old, WAY past time for replacement.

I contacted a couple of dealers and was told a new hose would come from Japan ... some day. Not good enough. I contacted a local hydraulic hose maker Hose Man and had them reuse the original fittings on a length of braided stainless. Overkill but ... they had it back to me in 24 hrs for $32.

#2

What's the right way to take this hose off? If you start loosening it on the vacuum pump end it will "want" to tighten on the other end.

While replacing the alternator I ended up unscrewing the vacuum pump off the hose instead unscrewing the hose from the pump. In the process I busted the fitting, so now I have a nice oil leak at both ends (fittings) ... and will have to get a new hose made like yours. Still, I don't want to do the same mistake again.

thanks

#3

The end that screws to the engine is actually a swivel, and screws to an adapter, which screws into the block. Loosen the engine end (two wrenches: one for the swivel, one for the adapter), and then you can unscrew the hose from the pump.

At least, that's the way I'm remembering it. I haven't done one in a while.

(memory check: OK) -Philip

#4

Thanks!!

I got it out... Now I see. Had I known that it's a swivel on the other end, I could have saved a trip to the hydraulic hose shop... Oh well, it was time to replace it anyway.

#5

I ran down to Hydra Air Pacific, the biggest hose fitting company in Honolulu. They cannot reuse the old fittings and using their own, the actual hose part would be like 3 inches ... way too little flexibility to put it in IMO. They would charge around 30 bucks. I called around two more places and they all told me they cannot do it or refered me to Hydra Air.

So I was very frusrated, I was contemplating to call Hose Man in CA ... then I thought I might as well try Nissan and ...TADA !! , they have the hose for $20.

#6

Zoltan, can we have the part No.?

#7

Zoltan wrote:I ran down to Hydra Air Pacific, the biggest hose fitting company in Honolulu. They cannot reuse the old fittings and using their own, the actual hose part would be like 3 inches ... way too little flexibility to put it in IMO. They would charge around 30 bucks. I called around two more places and they all told me they cannot do it or refered me to Hydra Air.

There MUST be a miscommunication involved. Hose Man simply ground off the swedge sleeves, pulled the old hose off the barbbed fittings, installed new hose with new swedge sleeves, crimped 'em, ... job done.

Zoltan wrote:So I was very frusrated, I was contemplating to call Hose Man in CA ... then I thought I might as well try Nissan and ...TADA !! , they have the hose for $20.

Hmmm. Too cheap. Let's see what part arrives.

#8

Hmmm. Too cheap. Let's see what part arrives.

As usual ... Philip is right. When I got to the dealership the clerk showed me the hose that feeds air to the pump... FAST was showing it as an oil return hose...

So there are two hoses available: one is for $48 the other one is $82. The difference is 2" in length b/w the two. I will look at the pictures he got from Nissan America on Monday to see if the cheaper will do. Othewise I am mailing the one I have to Hose Man.

As for Hydra Air Pacific, all I told them was that I wanted to reuse the old fittings and they told me that they couldn't do it. IMO it was just a lack of imagination on their part, or that I was just too little customer for their operation to go the extra mile. They are pretty much the only hose fitting place in Hawaii, and they have the whole fishing fleet, construction vehicles and big trucks to serve.

#9

I was asking about this line earlier and IMO it would be easy enough to convert the NPT ( 1/8 ) to -6 AN lines which can be made from a simple order to Summit Racing. They'll be alittle cheaper, hold up, and they look cooler.

#10

i got this hose delivered from japan, through my localish nissan dealer, to canada for $78. 1/2 of that shipping. its rubber, with the fittings. soon after, i read phillips post. i did not know there is a such thing as a "local hose builder", naturally, the shop i get most of my parts from make hoses all day long for the loggers. duh.

#11

Zoltan, can we have the part No.?

The clerk showed me a photo of both hoses aligned next to each other: the original costs $82. The one that supersedes it (and I ordered) is 14665-T9002, about one inch longer than the original one, and goes for $47.09 before taxes. I will post pictures as soon I get it.

Added on Feb 24, 2007:
Here's the picture as promised

#12

Good pic, Zoltan.

#13

$%@#$!!!!!

i actually made my truck run yesterday for the first time in a very long time.
and now to make a long story short: i discovered the fitting from the hose to the block was in backwards so i thougt id turn it around. turns out the proper block side is stripped! the damn thing is metric!!! nissan has one in japan. i am just about ready to kill my truck

#14

Zoltan wrote:
Zoltan, can we have the part No.?
The clerk showed me a photo of both hoses aligned next to each other: the original costs $82. The one that supersedes it (and I ordered) is 14665-T9002, about one inch longer than the original one, and goes for $47.09 before taxes.

http://www.BuyNissanParts.com has this hose for $27.73 wholesale! (MSRP $37.73).

They are getting $15.62 for the #14670G7004 oil return hose (low pressure return line).

#15

Great! Any experience with these guys?

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Vacuum Pump Oil Line

Vacuum Pump Oil Line

the freakin' fitting that connects the hose to the block

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