Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Can we talk about water pump failures?


Daily02
Go to solution Solved by Son of Marty,

Recommended Posts

  • Solution

The pump can live with a normal tension set on the belt, but they do wear out as all pumps will do the bearings can wear out or the seal can go dripping water I've never broke the housing.

If everybody in the room is thinking the same thing, then someone is not thinking.

 

George S Patton 

Planning the Normandy Break out 1944

Link to comment
Share on other sites

Bearings are wimpy and if the belt is tightened with no more tension than what it takes to keep from slipping on the alternator, it will last a long time.  Bearings get loose then the water seal will begin to leak.

 

First pump on my car crapped at 30k, next one ran forever.

  • Like 2

A radiator shop is a good place to take a leak.

 

I have no idea what I'm doing but I know I'm really good at it.

Link to comment
Share on other sites

Maybe water pumps are a sore spot among ‘02’s with 100K+ miles since the last water pump replacement.

 

Jim’s pump failure at 30K-miles is the first I’ve heard of at such an early stage. And that was obviously a factory-installed unit, given Jim’s original-owner status. I’ve owned a bunch of ‘02’s over the last 49 years and I’ve not had a water pump failure… yet. I have prophylactically replaced pumps, however, with engine overhauls. And I’d have to guess that the quality of units today could be less than the original quality.

 

Keep a spare new or rebuilt pump in your spare parts inventory — so you don’t have to worry about availability and supply chains — but I personally wouldn’t spend much time re-engineering a part that regularly lasts at least 100K miles. Most fifty-year-old cars have more pressing issues! 😉

 

Regards,

 

Steve

 

  • Like 2

1976 2002 Polaris, 2742541 (original owner)

1973 2002tii Inka, 2762757 (not-the-original owner)

Link to comment
Share on other sites

I don't know this for fact, but my guess is age/condition of the alternator bushings actually have a lot of influence on this.  Not sure whether new urethane bushings with a tight belt or old worn bushings that allow bouncing around would be 'worse,' but I figure too much of either probably shortens the longevity.  New good bushings followed by proper belt tightness is my vote!

  • Like 1
Link to comment
Share on other sites

In umpteen years of driving, racing, and taking apart 2002s,

 

I've never had a water pump give me trouble.

 

I'll see your $100, Andrew and raise you.

 

In any car, water pumps are a consumable- they used to last 5k, and 

then get re- sealed and re- bearing-ed.  Then seals got better, and 10k was reasonable.

Then WW2 happened, and afterwards, 25k was good.

Then the space race happened, and everything got a lot better.  50k.

Then the internet, and it all went to shit, except for water pumps, which now

regularly go 100k+, but since cars go farther than that, they still get replaced.

 

Since 2002s fall somewhere after WW2 but before the internet, I'd say 

that the 2002 water pump is a bit more durable than most.

 

One advantage that 'modern' cars like the E30 introduced was a coolant level

sensor.  After that showed up, 'problems' like water pumps became annoyances,

not tragedies.

 

Cars were WAY more maintenance- intensive before the imports arrived in the 60's.

(yes, we were importing cars before then, but have you ever had a Briddish car???)

 

t

has had far more rear hub failures...

  • Like 2

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

Link to comment
Share on other sites

1 hour ago, AceAndrew said:

 

(Unless plastic impellers are now a thing?  Last I checked they weren't),

I dont think so, that was years back. The cheapest possible pump I could source recently( Gates brand from China) has a steel impeller. Its installed in survivor, I expect it to outlast me.

  • Like 1

76 2002 Survivor

71 2002 Franzi

85 318i  Doris

Link to comment
Share on other sites

3 hours ago, Conserv said:

Jim’s pump failure at 30K-miles is the first I’ve heard of at such an early stage. And that was obviously a factory-installed unit, given Jim’s original-owner status.

A little water pump history on my '69, bought new.  The original pump failed at 37k--leaked like a sieve.  Replaced with another factory water pump:  failed at 74k (do the math--same number of miles).  Replaced with yet another pump--still a Graf but sourced from the local import auto parts emporium:  lasted well over 100k miles before finally succumbing to leaks.  So go figure. 

 

Apparently someone changed the internal design on the pumps, as I've consistently gotten 100K + miles on replacement pumps on both cars. Even the '73s original pump went over 100k miles before failing.

 

While you might malign French cars and engineering, the water pump on my '59 Renault has never been replaced, after 63 years, because it has a grease fitting--a short squirt every 5k miles keeps the bearings well lubricated.  Worn/wobbly bearings cause the carbon seal to leak, and there goes the water pump.  Too bad our BMW pumps didn't have a grease fitting...One of these days I'll take a derelict pump apart to see if one can be added...

 

mike

  • Like 3

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t
  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...