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 Post subject: vaccum pump
PostPosted: Thu Jan 15, 2004 7:56 pm 
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Joined: Thu Jan 15, 2004 7:51 pm
Posts: 26
Location: Jonesboro, Ar.
:( My 1982 luv has a vac pump on the back of the alt. that leaks oil when its cold. I have changed the o rings before and wondering if that is just something that i will have to repair from time to time or i am not fixing the real problem. When the engine starts to warm up it stops. need help!!!!! Travis


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PostPosted: Fri Jan 16, 2004 2:20 pm 
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Joined: Fri Mar 07, 2003 1:09 pm
Posts: 103
I had to replace my oil line that runs to the back of the alternator this past summer. The following infomation was found by doing an author search for all of my posts "woody"
Good thing this is you can still get the part from Isuzu, bad thing it costs alot for a small item and it takes a couple of weeks to get it. Now that they are all on computers, they don't have tech data on the Diesel Luv, so I had them refrence the Isuzu Pup truck, that was in production till 1986-87? or try cross refrencing the Tropper, since that diesel engine used the same setup.

From an early post:
I just bought this truck a month ago, was changing the alternator belt and caused the oil line to go bad.
Any idea on where to get the parts to fix it? The part number is (94028195)?
The hose has two banjo fittings, one is 12mm the other is 17mm. The 17mm side conects to the pump, the 12mm connects to the block.

I know it sounds wierd that an oil hose is connected to the alternator, but this is a special alternator which has a vacuum pump that is specially for the diesels. I can get a hose made by a local auto parts store, but as for myself making the hose myself, I don't have the capabilities and right tools/machinery. I will try to get a brand new one from the dealer, which is the best way to handle the problem with the leaking

from an earlier post
The oil line that routes to the the back of the alternator is used to keep the vacuum pump oiled and cooled.
The Vacuum pump is mounted to the back of the alternator (diesel englines do not create a lot of vacuum) to produce vaccum to run the brake booster.

Hope this helps

BTW to find that little oil line with banjo fitttings you have to order it directly threw Isuzu. It will cost you about $45.00, and $2.00 for the banjo gaskets.
It you just need to change the alternator or belts REMOVE THE HOSE! or it willl brake since the line was soft , over time it gets hard from the heat and will brake.

_________________
1981 Chevy LUV 4x4 2.2L Diesel 4 Speed Selling out moving over to VW TDIs.


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PostPosted: Fri Jan 16, 2004 2:33 pm 
The only problem l had my pipe burst l just robbed one of my spare truck.


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 Post subject: vac. pump
PostPosted: Wed Jan 21, 2004 10:10 pm 
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Joined: Thu Jan 15, 2004 7:51 pm
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Location: Jonesboro, Ar.
I'm just going to change the O'rings and see if that will fix the problem. Thanks :?


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 Post subject: vac pump
PostPosted: Sun Jan 25, 2004 11:20 pm 
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Joined: Thu Jan 15, 2004 7:51 pm
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Location: Jonesboro, Ar.
Good day all!!!!! Just to give u an update on my vac. pump leak. I ordered the two O'rings that go on the pump, put them on today and so far no leak. :D :D :D :D :D :D :D :D :D Its so good to be back in the LUV :D :D :D :D :D :D


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