ncbrock's Gulf Tribute stunt hull kit assembly

[chad]

I would line the shoe up where you think it goes , but dont secure it with glue.. you could temporarly use the screws to hold it in place . but make sure your pump lines up with your pump shoe before you drill your holes to mount youur pump. basically mock it all up before you glue !

 

[McDog]

How does this sound? Mock up the shoe and pump. Secure it with screws. Then turn it over and mock up the midshaft and bulkhead. Check, recheck, recheck, etc. that the driveshaft is centered in the hull and everything is flush and aligned. Then drill holes and bolt up the inserts and glue the shoe and bulkhead. Then align the motor mounts. Then glue in the mounts and inserts. Then reinforce the mounts with fiberglass.

 

[chad]

How does this sound? Mock up the shoe and pump. Secure it with screws. Then turn it over and mock up the midshaft and bulkhead. Check, recheck, recheck, etc. that the driveshaft is centered in the hull and everything is flush and aligned. Then drill holes and bolt up the inserts and glue the shoe and bulkhead. Then align the motor mounts. Then glue in the mounts and inserts. Then reinforce the mounts with fiberglass.

perfect!

 

[Sanoman]

You the man,Chad!!!

 

[McDog]

Yes he is. Thanks!

 

[Waternut]

How does this sound? Mock up the shoe and pump. Secure it with screws. Then turn it over and mock up the midshaft and bulkhead. Check, recheck, recheck, etc. that the driveshaft is centered in the hull and everything is flush and aligned. Then drill holes and bolt up the inserts and glue the shoe and bulkhead. Then align the motor mounts. Then glue in the mounts and inserts. Then reinforce the mounts with fiberglass.

Sounds soo easy... Probably will take all day though. That's an excellent idea to mock it all up first before gluing. You could even glue one bolt out at a time so nothing ever gets out of line.

 

[McDog]

I have everything lined up in this photo and the pump shoe screwed in place. I had to shim the pump shoe on the bottom screws (top in the photo) with one washer to get the pump to lay flush against it. The driveshaft is centered all along the shaft. The pump did not seem aligned in the up and down direction. It seems as though maybe the pump needs to be closer to the hull. You can see a lip on the bottom and top where the pump and shoe meet.

 

[McDog]

The intake grate lines up just fine.

You can also see where the pump lays flush with the hull on all the bolt areas except for one. I'm thinking that I need to grind down the other three areas to match the one that has a gap. That would move the pump closer to the hull and help align the pump and shoe in the up and down direction. If I grind it just right and/or shim it then maybe I won't need the shims I have on the pump shoe. What do you guys think about that?

Does anyone know what the distance should be from the hull to the end of the driveshaft in the up and down direction? That would help me decide whether the pump needs to be adjusted to match the shoe or if the shoe should remain shimmed.

 

[Waternut]

No fair on the intake grate! My pump shoe is gapped a little bit on the bottom (or top when upside down) as well. I actually think mine is gapped a little more than yours. Going on memory, I think my pump shoe has around 0.100" between the shoe and the hull. It's solid now but the gap is there either way.

I can't help you on the mounting surface because I had to rework mine and then did some fancy shimming on the pump. However, I can tell you that you need to mount the steering cable fitting as LOW as possible. Dan mounted mine too high and it wouldn't connect to the nozzle so I was forced to relocate the cooling fitting.

If you want, feel free to come by and get my SN for comparison. It's barebones right now.

 

[chad]

However, I can tell you that you need to mount the steering cable fitting as LOW as possible. Dan mounted mine too high and it wouldn't connect to the nozzle so I was forced to relocate the cooling fitting.

.

what are you talking about? my steering cable is mounted as high as it can be . and it connects just fine , plus with the trim pulled it will be in less of a bind.

 

[kenny j]

what are you talking about? my steering cable is mounted as high as it can be . and it connects just fine , plus with the trim pulled it will be in less of a bind.

mine is low,, and would of asked dan to make it higher so the trim pull was better, but before i though of it he was already on his way to my house with the hull... IMO higher is better!!!!

 

[Waternut]

Yeah I guess higher would be better. Just make sure it clears the pump cooling line.

 

[McDog]

Chad, John, Sanoman, Chips: could one of you please give me some sort of height measurement for the driveline? Even if it is for the midshaft it will help me figure the angle for the pump.

 

[Waternut]

I'll try to get some measurements when I get home. Mine is on the lift so I'm not getting any measurements underneith but I should be able to get midshaft height and the height of the front and back of the engine. Maybe if a couple of us produce numbers, it'll give a pretty good estimate on where it should be.

 

[Sanoman]

PM Chad for his imput.

 

[chad]

the hole in my bulkhead is about 4 in off the bottom of the hull.

 

[Waternut]

Well one thing to think about is the holes for the midshaft are far more important than the hole for the driveshaft. I lined up my pump with the midshaft attached because the hole for the driveshaft was not perfect.

 

[McDog]

Thanks for the info guys. I just had a long conversation with Paul and we decided that the angle of attack should be between 5 and 7 degrees for the pump. I plan to put a level on the chines with the bottom deck on the stand and adjusting it untill the chines are level. Then putting the level on the pump and adjusting it for 5-7 degrees downward thrust from the hull. I wonder if the variations on how some of the stunts ride is because the angle of attack was not consistent on the different hulls.

 

[Waternut]

I wonder if the variations on how some of the stunts ride is because the angle of attack was not consistent on the different hulls.

It's possible that the pump angle was different but when chips and I compared setups, it was clear that both his pole bracket and his turn plate were much further back than mine. His turn plate alone was around 4" further back than mine and his pole mount was further back as well. When I changed only the turn plate on my ski to one that was 3 inches further back, my ski went from scary nose heavy to almost too nose happy. So basically that tells me that pole placement and length is critical on these short hulls and it's going to have to be adjusted for each persons riding style.

 

[McDog]

Oh pole placement and length is critical. It changes the effective length of the hull. No doubt it needs to be adjusted. I'm just saying that pump angle will play a big part too.