Jump to content

 

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

wakesetterDD

Is my raw water pump supposed to leak?

Recommended Posts

wakesetterDD

I have seen water coming out of the gap in the middle of the raw water pump.  I don't think it did it for a long time but is this normal?  I have a 99 VLX.

Share this post


Link to post
Share on other sites
BlindSquirrel

Mine doesn’t leak...I think the only thing that is acceptable to “leak” is the packing nut on the drive shaft. There is a seal on the backside of the raw water pump facing the engine that is most likely tired. If it’s a slow drip, I wouldn’t let it bother me.

Edited by BlindSquirrel

Share this post


Link to post
Share on other sites
mgb1974

Bad, replace it.

mine went out a few seasons ago. Didn’t realize it and boat would go into limp mode from getting to hot. Had a bad gage also.

 

i think it took me about an hour to replace.

Share this post


Link to post
Share on other sites
Choiceind

Nope.. replace it. They do sell rebuild kits,, I would just a new one. Comes with impeller too. Bakesonline.com

Share this post


Link to post
Share on other sites
Eagleboy99

The old ones used to leak a bit.  like your 99.  But I would start shopping for a new one.

Share this post


Link to post
Share on other sites
justgary
3 hours ago, wakesetterDD said:

I have seen water coming out of the gap in the middle of the raw water pump.  I don't think it did it for a long time but is this normal?  I have a 99 VLX.

www.oringsandmore.com part number 16x28x7 Buna-n oil seal.  I bought a sack of ten of the seals and have fixed three pumps so far.  The bearings are always good, just the seals that start leaking.  No need to buy a new pump.

Remove the pump and impeller, put it in your vise, gently drift the shaft out (with the bearings, as I recall).  Tap the old seal out, tap a new one in, tap the shaft back in (remember to put the o-ring back on the shaft in the right place; it keeps the water dripping off the shaft instead of running into the bearings).  Ready to install on the boat in five minutes.

 

Share this post


Link to post
Share on other sites
Chaabo

Mine started leaking at the back as well after about 550hrs.

I read a lot about replacing that fore mentioned seal (mostly on the Mastercraft forum), even found a PDF on how to there, but also read of premature failure of these replaced seals, so I decided to just replace the whole pump, as I needed a new impeller anyway.

I bought the new one from Marine Parts Source in Marysville, MI. It came with the impeller already installed. I had to paint it black though, as it came in raw bronze finish.

Johnson F6 Extra Flow Crankshaft Pump JP 10-24915-01 $160 shipped

Edited by Chaabo

Share this post


Link to post
Share on other sites
justgary

I can buy a whole bunch of prematurely failed seals for $160.  Eventually the shaft will wear a groove, but the trick is to replace the seal at a slightly different depth to avoid the groove.

Honestly, this job is simple to do and the seals are cheap.  SKU #OS16287.  $1.75 each.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...