Plastic parts do not go in your engine!

Air, fuel, and a spark, thats what makes every one of these Bavarian powerhouses churn at up to 7000RPM. Discuss all 1992-1999 BMW 3 series motors here. Including all M50, S50, M52, S52, M42, and M44 variants.

Plastic parts do not go in your engine!

Postby Caligula » Fri May 30, 2008 1:52 pm

I was at my Polish mechanic's yesterday and saw a silver E36 up on the rack getting a cooling overhaul. I learned that the lady came in complaining about the little needle that kept going int the red. I was happy to finally see the reason why everyone says to replace your water pump with a metal impeller. The crack along the inside of the impeller allowed the shaft to spin without moving the impeller blades.

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Re: Plastic parts do not go in your engine!

Postby st3althbeam328i » Fri May 30, 2008 1:56 pm

ouch stewart racing water pump FTW!!
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Re: Plastic parts do not go in your engine!

Postby Volfinator » Fri May 30, 2008 3:01 pm

Plasticowned
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Re: Plastic parts do not go in your engine!

Postby veriest1 » Fri May 30, 2008 11:55 pm

Yowzers! How many miles on the car?

The plastic pump in mine ended up lasting about 120k miles (which was shortly after I bought the car) and was replaced to prevent this. That's as far as I've ever heard of one going.
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Re: Plastic parts do not go in your engine!

Postby Caligula » Sat May 31, 2008 2:53 pm

veriest1 wrote:Yowzers! How many miles on the car?

The plastic pump in mine ended up lasting about 120k miles (which was shortly after I bought the car) and was replaced to prevent this. That's as far as I've ever heard of one going.


I dont know the mileage but it was an earlier model, like a 94 or 95.
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Re: Plastic parts do not go in your engine!

Postby Volfinator » Sat Jun 07, 2008 7:38 pm

Which is why its one of the first things you replace if there isn't documented proof of this being done.
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Re: Plastic parts do not go in your engine!

Postby Borgerding » Sun Aug 17, 2008 9:09 am

Wowzers.....

Mine was replaced before I got it.
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Re: Plastic parts do not go in your engine!

Postby fcvapor05 » Sun Aug 17, 2008 12:23 pm

Bummer. That one doesn't even look that bad.
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Re: Plastic parts do not go in your engine!

Postby MIKEGTR » Sun Aug 17, 2008 2:26 pm

that's horrible!!!

i need to get a stewart pump for mine just for peace of mind

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Re: Plastic parts do not go in your engine!

Postby DEFKON99 » Sun Aug 17, 2008 3:52 pm

MIKEGTR wrote:that's horrible!!!

i need to get a stewart pump for mine just for peace of mind

Mike

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Re: Plastic parts do not go in your engine!

Postby loonibab///m3 » Fri Aug 22, 2008 10:19 am

ouch, that doesn't look pleasant.
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sirius680 (Caligula): ok, how the hell do i bump a e36tech thread with a e36tech logo in my sig WITHOUT looking suspicious
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Re: Plastic parts do not go in your engine!

Postby Yeti Poacher » Wed Oct 06, 2010 7:21 am

I recently replaced mine at 265k miles. I bought the car at 180k and am highly doubtful that the one I removed was original since it is plastic. Maybe I can discern from a serial number on the pump? If it is original that would be astounding!
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