impeller cone grease absolutely reeks!

[rjcress]

Quick question... In prep for rebuilding the jet pump and putting in a new impeller, I took the cone off of the 2000 GTX Di jet pump last night. I've worked on cars, boats, bikes, planes, etc for decades and never smelled grease that was soooooo foul :ack:. This stuff is easily twice as hideous as the worst stuff I had encountered previously. uke:

Is this normal, or an indicator of any additional action that I should take during the pump rebuild?

The grease (not oil) was nearly as thin as motor oil and black. From the smell I'm guessing it was burned. I found no water or other contaminants/debris and there appeared to have been no leakage, as it was NOT low on grease.

Seriously, I was working on the far side of my attached garage, and left the open pump and cone sitting out over night. Not only does the garage smell terrible now, but the whole first floor of my house smells bad, as well as my bedroom, which is directly over the garage. I didn't realize how bad the house smelled until returning from taking the kids to school this morning.

And to think I was afraid the mechanics of the pump rebuild would be the biggest challenge...

 

[Minnetonka4me]

LOL its just an indication it was never changed, and it has OEM lube in there. I always crack them outside it is god awful.

As long as you didnt see water in there you are fine. I use Amsoil marine gear oil but any gear oil will work.

 

[Jetskigoodies]

Yeah that good ole rotten eggs smell, mmmmmmm sulfer. Smells like old gear oil thats for sure. I always change them outside now, even in the summer if we have both garage doors openin the shop it still stinks up the place. The neighbors were coming over thinking we had a major gas leak. I use mobile 1. I guess the brand is up to your liking. You could use the seadoo brand too but you are just paying for their logo

 

[Spimothy Leary]

if you think that smells bad, don't ever try re-sleeving cylinders by baking them in your kitchen oven....

repeat...

don't ever try re-sleeving cylinders by baking them in your kitchen oven....

 

[rjcress]

if you think that smells bad...

don't ever try re-sleeving cylinders by baking them in your kitchen oven....

hehehe. Thanks, I needed a laugh.

 

[racerxxx]

Ha, actually love that smell and 90w gear oil, some of my favorite smells. Diesel fuel, fresh black top straight from the truck now were talking! Yeah, I used to sniff gas too when I was a kid, it was the only way I could get my go-kart started when I was 6 y.o. I'd be high as a kite pulling that cord!

I use the OEM oil for the pump. It's GL-5 75w-90 synthetic.

 

[Jetskigoodies]

I use that, I think its $12

 

[Jetskigoodies]

Ha, I used to sniff gas too when I was a kid, it was the only way I could get my go-kart started when I was 6 y.o. I'd be high as a kite pulling that cord!

I use the OEM oil for the pump. It's GL-5 75w-90 synthetic.

That explains alot lol, now we know why you take on those insane project I.E. anthonygratos old carbs.

 

[racerxxx]

Oh you don't need to tell me there is something wrong here. Heck I've caught my kids sniffing the gas can, apple doesn't fall far from the tree.

 

[sselzer]

I use klotz synthetic jet pump oil.

 

[Jetskigoodies]

Isnt that $8 for 4 ounces, well I guess thats not bad if you are only doing a couple, but every fall we do our own 5, then everyone we get in. At $8 a pump that would get expensive quick. I always think bulk lol, anyone know if there is a costco for seadoo parts? We bought klotz once and the seadoo pump oil once, now we always have a bottle of mobile 1 ready to go.

 

[suke]

I'm using Royal Purple on my XP, but used valvoline syn on all my trucks in the past. Granted that's a different beast.

 

[sselzer]

Isnt that $8 for 4 ounces, well I guess thats not bad if you are only doing a couple, but every fall we do our own 5, then everyone we get in. At $8 a pump that would get expensive quick. I always think bulk lol, anyone know if there is a costco for seadoo parts? We bought klotz once and the seadoo pump oil once, now we always have a bottle of mobile 1 ready to go.

I paid a little over $6.00. Here's the link.
http://www.atlanticjetsport.com/index.php?l=product_detail&p=2230

 

[Matt Braley]

I love the smell of Klot R-50 two stroke oil but never tried their pump oil. I'm on my 3rd quart of the Mobile One like JSG showed this year. I have been accused of having a huge natural leak also after draining a bad one outside (lol).

 

[Minnetonka4me]

The klotz stuff is cool, but when you do as many as I do bulk is ideal. I use the marine gear oil b/c it can deal w/ water better than regular stuff.

 

[SabrToothSqrl]

Diesel smells good.

Yes, jet pump oil WREAKS.

 

[Seadoobuddy]

if you think that smells bad, don't ever try re-sleeving cylinders by baking them in your kitchen oven....

repeat...

don't ever try re-sleeving cylinders by baking them in your kitchen oven....

OK Spim....tell us the rest of the story.......

 

[Spimothy Leary]

OK Spim....tell us the rest of the story.......

it smells god awful and takes about 36 hours to dissipate... that's all sorry, no good story behind it lol

 

[RodInEscondido]

it smells god awful and takes about 36 hours to dissipate... that's all sorry, no good story behind it lol

What a drag, I was hoping for a good story like you needing to camp out on the pool table at the corner bar for a week ... or sending the lady of the house off on an exotic vacation until the house cleared out ... endless possibilities for a good story here ... I had a number of ugly visuals running through my head.
Rod

 

[rjcress]

Well, on further research, the black stanky stuff in my jet pump was OIL, not grease. It was jet black. So black that I thought it HAD to be grease.
I completely tore down the pump, cleaned it, and reassembled with fresh bearings and seals. Then filled with Klotz synthetic Jet pump oil.
Installed a used, but looked practically brand new Solas Dynafly ST-DF 13/19 impeller while I was in there.

So, anyone have any thoughts on why the oil was jet black and way worse smelling than any other oil I've EVER encountered? There was no water in the oil, by the way.
I'm assuming that with the pump rebuilt, that any issue that may have been there before should be corrected... but I'm pretty new at this.

 

[DA080682]

Well, on further research, the black stanky stuff in my jet pump was OIL, not grease. It was jet black. So black that I thought it HAD to be grease.
I completely tore down the pump, cleaned it, and reassembled with fresh bearings and seals. Then filled with Klotz synthetic Jet pump oil.
Installed a used, but looked practically brand new Solas Dynafly ST-DF 13/19 impeller while I was in there.

So, anyone have any thoughts on why the oil was jet black and way worse smelling than any other oil I've EVER encountered? There was no water in the oil, by the way.
I'm assuming that with the pump rebuilt, that any issue that may have been there before should be corrected... but I'm pretty new at this.

The gear oil has alot of sulfer (EP additive) in it being a GL-5 rated oil, hence the awful smell. It is black because it has alot of hours on it and is oxidized. Interestingly, GL-5 gear oil can be corrosive to yellow metals such as brass, copper, etc. I have always wondered why Seadoo uses it in a brass housing. I have not observed any corrosion though on units that didn't have water in them.

 

[Seadoobuddy]

This oil always smells bad. Some take grease but most SD take the 75W90 oil.
I can't remember what Dr Honda said on what brand or models take the grease so always check your owners manual first.
On what you did, it was very good preventive maintenance.

 

[Getemkustom]

:thumbsup: