Thread: Intake alignment
08-02-2008, 08:09 AM #1
Having been out on my friends Seadoo, I now realise my XL1200Ltd is worse than I thought out of the hole! The Seadoo is instant, whilst mine feels like the 'clutch is slipping', which I guess is cavitation. Once moving, it's fine, it's just the holeshot that's bad. I've put in the pump seal kit, but am not sure about the setting of the intake (see pics). The top left pic shows the intake duct without any shims, and this looks too high to me. The 2nd pic shows what difference 2 shims make (to my eye, a smoother transition). The other 2 pics show the quarter inch gap between the front of the duct and the hull. Would I be best to shim here as well, to get the duct level with the hull, then go to town with sealant all around?
08-02-2008, 08:45 AM #2
The first pic is the correct way. Shimming this down will scrub speed.
08-02-2008, 08:49 AM #3
Thank's Bill. I'll bolt it all up without shims and plenty of sealant then.
08-02-2008, 08:57 AM #4
did you put a pump plug kit in it?
08-02-2008, 09:04 AM #5
Yes. I did that a few weeks ago, but it didn't make that much difference. I didn't seal all around the shoe etc. with silicone though, like I've now seen the guys on the forum do, so I'm hoping that will help this time around! I've also smoothed out the dinks and pits in the duct to try to get the water flow smoother up to the impellor, as I guess every little imperfection has an effect on the flow. It just surprised me how quick the Seadoo hooked up, and has made me more conscious of the faults with mine!
08-02-2008, 09:13 AM #6
The seadoo has an 8 vein pump they hook up well. have you done a hole shot kit on yours also? The XLT is a lot of boat to get out of the hole.
08-02-2008, 09:28 AM #7
I haven't done a holeshot kit, and to be honest, I don't know what one is! I have been told the older type, straight edge impellors are not as good as the 'swirl' type, so that may be worth a shot.
08-02-2008, 09:36 AM #8
impeller selection is important, I found on my SUV that a Solas 13/19 repitched to 11/18 worked best for this reason.
do a search on the "hole shot kit" or "Jetworks mod" same thing it just helps keep the water box empty for quicker revving of the motor out of the hole.
08-02-2008, 09:43 AM #9
I was just doing the search, and now know what it is! Thank's for your advice on this one. I'll try plenty of sealant on the shoe etc., and then go for a different impellor if it still doesn't hook-up too well. I've checked the clearance in the housing, and it's under 0.5mm all around, so that isn't a problem. I know it's wrong to compare the Seadoo with the XLT, but it was quite an eye opener! Thank's again, DaveW.
12-20-2008, 05:54 PM #10
- Join Date
- Feb 2007
- Cape Town, South Africa
for those guys mounting their intake grate/ pumpshoe.. this thread will come in handy
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