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Author Topic: water pump 4.0  (Read 3599 times)

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Bubba

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water pump 4.0
« on: April 28, 2011, 10:34:08 PM »
is the 4.0 known for water pump failure where the internal impelor fails internally with no leaks or signs  of a problem apart from overheating under load [towing]
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trucks


shedric
cletus
mr whippy

I spent most of my money on alcohol, women and old  iron........ the rest of it I just wasted.

loosenup

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Re: water pump 4.0
« Reply #1 on: April 29, 2011, 08:38:46 AM »
Hi V8

I had a 95 cherokee xj that did that .. when I got it out all that was left was the spindle. The impeller had totally gone.

Had to take most of the front off to do it also .

Phill
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Tragic

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Re: water pump 4.0
« Reply #2 on: April 29, 2011, 02:44:02 PM »
The pump on my old YJ corroded from the inside out. When the impeller disintegrated it punched a half inch hole in the housing. In roadworks. In evening rush hour. In the centre of Geneva....... :icon_redface:
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Panic mechanic!

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Re: water pump 4.0
« Reply #3 on: April 29, 2011, 02:55:25 PM »
I am sure I have seen a good few stories of impellers corroding excessively on the old 4.0
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Dave69

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Re: water pump 4.0
« Reply #4 on: April 29, 2011, 05:44:40 PM »
had the impellar grind it's way out on the housing, no play or side movement in the unit either, so work that one out
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XJ 2.5 diesel - dead. XJ 4.0 6" lift - sold to some lucky person
CJ7 4.2 auto standard(ish)
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Bubba

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Re: water pump 4.0
« Reply #5 on: April 29, 2011, 05:50:14 PM »
long shot but anyone know off hand if the 4.0 and 2.5 water pumps are the same ?
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trucks


shedric
cletus
mr whippy

I spent most of my money on alcohol, women and old  iron........ the rest of it I just wasted.

Dave69

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Re: water pump 4.0
« Reply #6 on: April 29, 2011, 05:58:26 PM »
the 2.5 diesel is different but then you know that already LOL

petrol sorry cant remember at this point
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XJ 2.5 diesel - dead. XJ 4.0 6" lift - sold to some lucky person
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Re: water pump 4.0
« Reply #7 on: April 29, 2011, 06:00:34 PM »
I don't beleive they are, there is one sitting on the 4.0 outside the house I am going to have to change to fit into the yj if its any use to ya.
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Jonny Jeep

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Re: water pump 4.0
« Reply #8 on: April 29, 2011, 08:03:48 PM »
Water pump is the same for petrol 2.5 and 4.0 engines. Just cross referenced the part number for the one I fitted last weekend. No sign of impeller wear or bearing play on the old one, so it must have just been the seal.
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Mike Pavelin

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Re: water pump 4.0
« Reply #9 on: April 29, 2011, 08:29:02 PM »
The 4.0 XJ water pump is different to the 2.5.
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Bubba

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Re: water pump 4.0
« Reply #10 on: April 29, 2011, 08:30:34 PM »
phew thanks mike any chance of a heads up on the right one  ?    92 xj
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trucks


shedric
cletus
mr whippy

I spent most of my money on alcohol, women and old  iron........ the rest of it I just wasted.

Panic mechanic!

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Re: water pump 4.0
« Reply #11 on: April 29, 2011, 08:44:58 PM »
ok if the one on the engine outside ain't good enough for ya  :wave-fingersmiely: :lol_hitting:
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Bubba

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Re: water pump 4.0
« Reply #12 on: April 29, 2011, 08:46:36 PM »
sorry dood i thought you were going to use it
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trucks


shedric
cletus
mr whippy

I spent most of my money on alcohol, women and old  iron........ the rest of it I just wasted.

Panic mechanic!

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Re: water pump 4.0
« Reply #13 on: April 29, 2011, 08:50:48 PM »
nah its not use as i got to change over the whole power sterring setup from the 4.2 so  if you want it its yours.( it was off a 92 as well)
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Bubba

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Re: water pump 4.0
« Reply #14 on: April 29, 2011, 08:52:06 PM »
any idea of miles
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trucks


shedric
cletus
mr whippy

I spent most of my money on alcohol, women and old  iron........ the rest of it I just wasted.

Panic mechanic!

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Re: water pump 4.0
« Reply #15 on: April 29, 2011, 09:01:06 PM »
its about 8 miles from you to me and the engine had about 80k on it
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Bubba

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Re: water pump 4.0
« Reply #16 on: April 29, 2011, 09:32:31 PM »
anyone know how much new ones are the skin flint says yes the mechanic says no buy new and do it once
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trucks


shedric
cletus
mr whippy

I spent most of my money on alcohol, women and old  iron........ the rest of it I just wasted.

Panic mechanic!

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Re: water pump 4.0
« Reply #17 on: April 29, 2011, 09:36:27 PM »
on ebay £40 -£50
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supersparks

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Re: water pump 4.0
« Reply #18 on: May 01, 2011, 06:47:23 PM »
i bought a dealer part 6 years ago and paid £82.00
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