Skat Trak Magnum pump VS TBM pump insert

[227]

I have a Skat Mag pump in my ski which absolutely rocks in the surf. The only downside is that It seems to need bearings/rebuild about every six months or so. The “Bill” always seems to be around $300. My stock pumps have never come apart or even needed bearings. Has any one tried a TBM (Or equivalent) pump insert IN THE SURF side by side with a Magnum Pump? How do they compare? At $300 for a TBM, I’m thinking for the price of one Skat rebuild I could be set for years to come. If performance is similar, any down sides to the TBM Pump inserts? (like can they be removed easily/ do the bolts corrode and break, etc.)

 

[RaisinBread]

The mag pump uses the stock sized bearings and stock seals, wonder if the seal is sealing correctly. The pump should be just as reliable as stock, i would think.

 

[227]

The mag pump uses the stock sized bearings and stock seals, wonder if the seal is sealing correctly. The pump should be just as reliable as stock, i would think.

You'd think so huh? Especially for what a Magnum costs. However I have several riding friends who run Magnums and all seem to need new bearings every 6 months or so. Some times we do get lucky and get a year out of a rebuild, but even at $300 a year it seems I can do better.

 

[Don 79 TA]

that sucks about the bearings

never tried a TBM in a SJ, only her SXR

 

[steve-uk]

i had a tbm cone on my stock pump with my ss 865 and to be honest i didnt even notice it, if you have ever looked at one i cant even see how they are supposed to improve performance, i took it off and bough a mag... notice the difference immediatley

i dont get the $300 rebuild cost, the oem bearings are not that much, prices from greater yamaha

BEARING $19.35 x2 $38.70

OIL SEAL $8.81
OIL SEAL $8.43

 

[5810]

Learn to rebuild them Yourself and save $ 200+

 

[Pablo]

Sell it to me and ill trade you a tbm cone and pay the diff. PM me if u want to do something.

 

[Tyler Zane]

jetmaniac has some good prices on the bearings and seals (around 40 bucks if my memory serves me right). rebuilding it is a piece of cake

 

[Big Kahuna]

personally, I think they are crap in Superjets.

You should be able to buy your pump bearings at any supply house along with seals. Should not cost you barely anything.

 

[JetManiac]

I think the TBM was a noticable difference in hookup over just a stock pump. However, the mag pump is a night and day improvement over it in the flat or surf.

Regular mag pumps take the same bearings and seals as an oem pump. Setback mag pumps use a different front bearing. With the money saved on 1 self-rebuild you can buy a press from harbor freight and rebuild your own pump.

 

[Matt_E]

I have a Skat Mag pump in my ski which absolutely rocks in the surf. The only downside is that It seems to need bearings/rebuild about every six months or so. The “Bill” always seems to be around $300. My stock pumps have never come apart or even needed bearings. Has any one tried a TBM (Or equivalent) pump insert IN THE SURF side by side with a Magnum Pump? How do they compare? At $300 for a TBM, I’m thinking for the price of one Skat rebuild I could be set for years to come. If performance is similar, any down sides to the TBM Pump inserts? (like can they be removed easily/ do the bolts corrode and break, etc.)

I have, and they don't come close. mag pump had much more hookup everywhere and makes better power delivery possible. But, the cone is better than stock, for sure.

 

[chriselmore_1]

what size mag are you running matt?

 

[Matt_E]

And for what it's worth, my rebuilt setback mag has been going strong for 8 months now. Also, the rebuild with Skat rebuild kit, done by Art, didn't cost anywhere near $300 :dunno:

 

[Matt_E]

Running a 14 0 12 vane setback.

 

[chriselmore_1]

why does so many people run the 140 and not the 144 mags? Is a 144 too much for a limited to mod setup?

 

[Matt_E]

Can't speak for anyone else, but I run the 140 because it was specifically recommended for my setup by the guy that put it together.

 

[227]

Thanks for the input everyone but just to be clear, I’m not talking about a tail cone, I’m talking about the actual pump insert which makes the pump stator the same size as a Mag Pump. I referred to TBM because, if I am remembering correct, that’s who made them first but there are others who make them also. Here’s one I found on Blowsions sight.

http://www.blowsion.com/detail.asp?PRODUCT_ID=02-02-400

Has any one compared one of these to a Mag Pump in the surf?

As for the $300 repairs may be Skat Trak is up selling me and I’m falling for it but my prop always seems to need to repairs/welded, etc in addition to the new bearings and when you add shipping to that, $300 bucks again.

 

[Matt_E]

That's exactly what I was talking about. It doesn't compare to a mag, don't fool yourself.
2 rebuild per year are not normal. What does Skat say about this?

 

[Big Kahuna]

why does so many people run the 140 and not the 144 mags? Is a 144 too much for a limited to mod setup?

Mainly because the 140 is more common.

 

[steve-uk]

i ran the tbm and mag pump back to back... night and day

when i fitted the tbm cone i noticed no difference from stock.. i think i described it before as sprinkling pixie dust in your pump.. although i have heard others say different

maybe it juts dont really work with my set up

i got a set back 144 mag from jetmaniac and im very happy with it