Question about Suzuki RM 250 Motorcycles

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1998 rm 250 blown water pump seal

But the water pump its on the left side how do i do it

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  • Suzuki Master
  • 1,190 Answers

See if you can hook the seal out and replace if not then remove the cover and that mite mean stripping engine ! ?

Posted on Jan 06, 2014


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Posted on Jan 02, 2017

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SOURCE: 1995 rm 250 blown water pump seal

Iv'e changed heaps of these.Follow these steps taking carefull note of where & how everything goes to make it easy to put back together. make sketches if necessary.

  • Drain the coolant & engine oil
  • Remove the hoses that go to the water pump
  • remove the waterpump cover
  • remove the impellor
  • remove the kickstarter
  • remove the clutch cover & locating dowel pins if they are still in the clutch cover(if they didn't stay in the crank case)
  • the water pump seal is a (ceramic) two piece unit
  • remove the ceramic disc & rubber holder from the back of the impellor
  • remove the impellor drive shaft from the clutch cover
  • behind the impellor drive shaft there is a small bearing. To remove this I heat around the alloy of the bearing with a heat gun (or butaine gas torch,if using an oxy torch use a small tip & take care to heat evenly & not melt anything/or heat in an oven to 80 to 100 degrees max)Use welding gloves to handle the hot clutch cover)
  • turn the cover over & whack it down on a flat piece of wood(9 times out of 10 this is enough to shock out the bearing
  • remove the back-up seal from behind the bearing you just removed noteing the direction it was facing(for reassembly)
  • now using a suitable drift,knock out the other half of the mechanical seal
  • scrape all the gaskets & clean the parts
  • check the impellor drive shaft to make sure the shaft is smooth & dosn't have any groves worn in it.If it does you'll have to replace it
  • I always fit a new impellor bearing & back-up seal & new gaskets when doing this job
  • reassembly is reverse of removal noting the following
  • to install the bearing & seals use a socket that matches the OUTSIDE diamiter of them so you don't damage them.To install the rubber cup & ceramic washer into the impellor DON'T use a drift just push them in by hand
  • apply some grease to the impellor shaft before installing it
  • Apply some soap to the ceramic disc before re-fitting it
  • to install the clutch cover, if it won't go on at the front near the impellor, turn the impellor shaft to engage the gear
  • refit kickstarter,waterpump cover,hoses
  • re-fill radiator with fresh coolant
  • re-fill gearbox with fresh gearbox oil
That just about covers it all
Hope this helps you
Regards Andrew Porrelli

Posted on Dec 03, 2009

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