2010 EC 300 Water pump shaft snapped & bearing collapsed

[Vindicator]

Would the impeller be this one :

http://checkpointoff-road.com/store.html



Anyone knows were I can find it in EU ?

[Jakobi]

Thats the aftermarket one I'll be fitting. Checkpoint will ship internationally. I got one sent to Australia. Pretty sure postage was reasonable (both time and cost).

[swazi_matt]

Originally Posted by Jakobi

Thats the aftermarket one I'll be fitting. Checkpoint will ship internationally. I got one sent to Australia. Pretty sure postage was reasonable (both time and cost).

+1 they ship internationally

[GMP]

Just don't slap this in and think all is well, it may not be. The pump covers as of late are sloppy in their finishing. I got a warranty replacement for mine that looked better but still had problems. Perhaps it was something else in the stack like the shaft or side cover. Temporarily install the impeller, the cover, and check clearance. Mine hit and needed to be releived. Use clay between the impeller and cover for a reasonable estimation. Around .5 mm should be good, its not that critical especially with the new impeller. Set this up right and you should have no more problems.

[Vindicator]

Originally Posted by GMP

Just don't slap this in and think all is well, it may not be. The pump covers as of late are sloppy in their finishing. I got a warranty replacement for mine that looked better but still had problems. Perhaps it was something else in the stack like the shaft or side cover. Temporarily install the impeller, the cover, and check clearance. Mine hit and needed to be releived. Use clay between the impeller and cover for a reasonable estimation. Around .5 mm should be good, its not that critical especially with the new impeller. Set this up right and you should have no more problems.

That's good input, thanks. Can the impeller be replaced just by taking out it's cover or is it necessary to remove the entire left side cover ?

[justsam]

Pics attached hopefully?

You can see where its been rubbing about 50% of the inner cover...

[Vindicator]

Originally Posted by justsam

Pics attached hopefully?

You can see where its been rubbing about 50% of the inner cover...

Thanks...Scary...

[GMP]

I prefer to take the side cover off and fit it on the bench, that way you can turn the pump shaft from behind and be sure all is free. Also, its better to hold the end of the pump shaft in a soft jaw vise while breaking the impeller bolt free. Its a steel shaft and somtimes the bolts are rusted slightly.

justsam,

That is not neccessarily rub marks from the impeller, it is the sloppy machine work on the cover, beleive it or not. Old ones were never like this. Look at the edges of your impeller blades, if you see dark lines and/or imbedded aluminum, its been making contact.

[Jakobi]

Hmm.. Maybe mine hasn't rubbed then either.. But the cover definitely looks the same.

[einsteingarage]

Same thing happened to me but it really did a number on the internals. Same story though. Uphill climb gentle lay over on the right side and whamo! This was on an 06 motor