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Messages - J2

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Engine Mechanical / Electrical / Re: N/a or blower?
« on: July 03, 2018, 06:41:43 AM »
I had your exact thoughts 11 years ago. I went with the Procharger. Overall cost was the lowest going this direction. Marine kit comes with intercooler. At the time it came with a carb box, I much prefer the carb hat I have now. You can bolt it on and go with 5 psi of boost right away. More boost when you rebuild your motor to handle it. You'll probably see 10-15 mph gain. My old Rogers broke 90 mph only after rebuilding engine for the Procharger bumping to 9 psi and some pump work.

I then added Methanol / Water injection for about $600 that only triggers at full throttle. My surprise was 200 more rpm on the top end. Best money ever spent here. Design is more about longevity keeping the charge cool.

As you can see in the pics it's a pretty simple set up. The 1st engine I put this on it fit under the hatch, 87 21' Eliminator.

Whatever direction you go understand you're opening a can of worms that you'll never go back from. The joys & headaches of high performance boating  8)

The No Wake Zone / Re: Left drive and gas pedal?
« on: June 05, 2018, 07:15:04 AM »
I always figured it's because on the left the foot throttle is easy to mount to the stringer, where would you mount it on the right? You would have to build something and it would pretty close to the hull.

SoCal Lakes / Re: Green drink
« on: June 05, 2018, 07:10:45 AM »
Time for a splash guard bud

Jet Pumps / Re: Universal Joint Repalcement Questions
« on: May 07, 2018, 07:10:33 AM »
Great, Thank you! Is there any trick to lining up the splines during installation?

None that I know of. I mark my drive shaft so I put it back exactly as it came off, if the engine & pump shaft don't move then it'll line back up. When I rebuild my bowl is off, easy to turn pump shaft to line it up.

Jet Pumps / Re: Universal Joint Repalcement Questions
« on: May 07, 2018, 06:26:10 AM »
Hey guys,
I'm an experienced mechanic but new to the jet boat world and one of my u joints went bad over the weekend and I have a few questions that about replacement. I have a sport pack 454 with a Dominator jet. There is a bell housing with about a 3" hole in it I'm assuming for inspection and servicing? I removed the cover from the hole and can see the grenade u joint, its the one closest to the jet. Now for my questions
1) It looks like I will need to pull the motor so when I do will the splined yoke slide of the pump shaft by moving the engine forward?
2) I have through transom exhaust with 4" rubber hoses that connect the manifolds to the pipes going through the transom. Will these come off as I move the engine forward? They seem too stiff to just pull out of the way. I have a few more questions but will wait to see if I'm on the right track. Thank you for any help or suggestions! ;)

Yes & yes. When you start to lift the engine, have a little room to push the boat trailer back. You might have to bump things around a bit to get it loose, but the engine will slide out. Spline is about 3 inches long on the pump shaft. I started out my working life as a mechanic before deciding I only liked wrenching for myself. Really like jet boats. Take this apart and you'll see everything is pretty much straight forward.

Jet Pumps / Re: New pump
« on: April 23, 2018, 10:08:28 AM »

There is a small wedge angling the droop down.

Old eyes. Have to get the nozzle height correct in relation to the ride plate.

Jet Pumps / Re: New pump
« on: April 23, 2018, 07:04:06 AM »
How many  of wedge you have?  And why so much? Proposing issues?

Sent from my SM-G950U using SoCal Jet Boats mobile app

I don't see a wedge on this one, just the bowl & full droop. Looks good :thumbup:

Jet Pumps / Re: 96 Lavey Craft 21Xt porpoising problem
« on: January 18, 2018, 12:52:06 PM »
Use a straight edge to check for hook. I have a 4ft steel ruler I use. Hold it up against the bottom on both sides of the jet and see if you have a significant gap near the back.

Pics of the jet set up would help. Both sides & back view.

My first thought was hook, which was created when the intake was installed wrong. I didn't describe how to check that very well.

Thanks for the update  :thumbup:

WarZone / Re: Wtf happened?
« on: December 05, 2017, 07:22:40 AM »
Good post Aqua. As I was about to reply I saw Brad's post and was going to point out the same thing he's stating. From a business standpoint you have to Facebook for this type of thing.

I've been in business for myself for 21 years. I've been advised to go Facebook simply to remind people everyday here I am, this is what I do so when it comes time for your business to make a change with their phone system remember me.

Problem for me is I'm a private person, I don't want to post my life up everyday showing everything I do over and over again.

I take a look here most mornings to see what's not going on, it is off season for most.

Not really making a point with any of this, just showing there are a few more Facebook hold outs than you think  8)

Events / Re: A visit from Texas Hot Boats
« on: November 01, 2017, 06:16:08 AM »
Parker Strip  :thumbup:

Jet Pumps / Re: 96 Lavey Craft 21Xt porpoising problem
« on: October 26, 2017, 07:05:45 AM »
Does look like thrust height needs to be lower. 5150's post supports that since he has a similar hull. I'm assuming the 4 degree wedge he's talking about is installed in the wedge down position to get the thrust height correct. If 5150 has a pic from the side with a straight edge up against the ride plate this will give you a really good reference point.

Typically the ride plate is set 2 degrees up from bottom of the boat to start. Some hulls like a little more.

Then using a straight edge off the ride plate measure the gap to the bottom pin of your steering nozzle or droop if you have one.

Once you see how big the gap is then you'll have a better idea if a mini droop or full droop would be a better fit.

On a Daytona a gap of 3/4" is what is most written about. I'm guessing you should be at 1" to 1.5".

Jet Pumps / Re: 96 Lavey Craft 21Xt porpoising problem
« on: October 21, 2017, 06:48:28 AM »
Use a straight edge to check for hook. I have a 4ft steel ruler I use. Hold it up against the bottom on both sides of the jet and see if you have a significant gap near the back.

Pics of the jet set up would help. Both sides & back view.

Jet Pumps / Re: Loader identification
« on: October 20, 2017, 08:02:42 AM »
Just because I'm still a little ignorant on Jets, I'm going to ask...What looks sketchy about it?

It's obviously old & rusted. If you wire wheel it clean you could get a better look at its condition, but better off spending the money for a new one. In my boat part world this was a pretty cheap part.

Here's the potential problem. There is no other part in your boat that if it breaks while at speed the damage done to the driver or passengers can be very serious. I'm not talking high speed either, imagine running 30 to 40 mph and your boat instantly slamming sideways and stopping. Everyone will be thrown hard in a random direction. Those of us that run at high speed really only fear 1 part breaking and this is the 1. I bought the best one I could find and it came from B1 Racing.

Jet Pumps / Re: What reverse bucket do I have?
« on: October 06, 2017, 07:42:29 AM »
Looks like a home modification to me. A better mod would be to use a calgo style steering arm. That way the cable would be right on top of the bucket instead of to the side.

I still have this, pm me if you're interested.

Jet Pumps / Re: Need some direction
« on: September 25, 2017, 08:43:11 AM »
1 3/4" to get to the 34 rule of thumb.
2 1/2"  total rite now.
Wedges it is! I'll have to hunt some down this week   hopefully do some testing on the weekend.
But going outta town for work this week puts a wrench in my plans.
Thanx for the insight and replying just wanna make her work well with what I got for now until I reset.the intake,ride plate,shoe etc.......
Again thank you

I wouldn't suggest going a full 1 1/2" down with the thrust height. Go half way and see how it reacts. I went past the sweet spot in both directions when trying to find it. For me to low caused a porpoise condition then to high I couldn't get the hull to ride high enough.

This is the thread that I used. You have a different hull & no ride plate so I'm not positive on where you'll end up, but going lower will definitely help.

I also consulted with Chris & Joe at B1 Racing, good advice and quality workmanship on the parts I picked up from them.

Jet Pumps / Re: Need some direction
« on: September 24, 2017, 04:28:49 PM »
Didn't have an extra set of hands so here's where I'm @ seems way off from the "rule of thumb"
About 1 34" difference. Can wedges make that up?

You mean 2 1/2"? I would like to see the pic that would show the straight edge at the pump. Yea you'll need 4 hands for that one.

I wedge mine down 6 degrees on my Daytona to get it to the right height so yes in my opinion you should wedge this down to try and find the sweet spot for what you have.

I would wedge it down to about 1" and run it. See what 4 degree's does to the height.

If Flusher see's this he'll give us some insight on where you should be with this hull.

It would be a good idea to bring some wedges to the lake so you can run it, make a change and see how it reacts. I find it amazing how 1 degree can make a significant difference when you get close to where it should be.

Jet Pumps / Re: Need some direction
« on: September 24, 2017, 08:26:25 AM »
Here's something to look at. Since you don't have a ride plate yet use a straight edge off of the bottom of the boat. I use a 4ft steel ruler.

I have a ride plate. The rule is the bottom pin of the droop should be about 3/4" above the bottom of the plate.

I would put the straight edge right against one of the intake fins a couple feet in. Measure the distance from the pin to the edge of the ruler. I would use a right angle slide ruler off the straight edge to the pin.

If you can get help snap a pic from the side. Your description sounds like the thrust height needs to be tweaked a bit with wedges. Down or up doesn't matter, you can adjust trim with place diverter.

Hope this makes sense, it's been a while since I worked on mine to achieve the proper thrust height.

Engine Mechanical / Electrical / Re: Push throttle cable
« on: August 31, 2017, 05:58:41 AM »
So I found these on Craigslist but the guy is not willing to help out a fellow boater and ship a 12 foot cable to central California...anybody have one they would send?

If so PM me with a price. Will send payment before you ship.

1977 Challenger

Buy a new one. I've used these on a few boats over the years with zero issues. $35 for a new 12ft 33c

Jet Pumps / Re: bowls
« on: July 12, 2017, 05:57:32 AM »
Looks like my 9 vane Aggressor

Jet Pumps / Re: Dominator Pump Leaking
« on: May 26, 2017, 05:20:18 PM »
Just saw your post, had to work today. You can get them from anyone selling jet parts.

It's the white plastic ones in the pic, you only need 1.

Just realized header gaskets and not head gaskets.

Jet Pumps / Re: Dominator Pump Leaking
« on: May 26, 2017, 10:09:12 AM »
It's not the wear ring. There is a plastic O ring that goes on the place diverter and slides back & forth inside the steering nozzle when you steer. Looks like it's missing and maybe a bigger gap than normal between PD & steering nozzle.

Engine Mechanical / Electrical / Re: Baffles
« on: May 25, 2017, 08:09:12 AM »
I've told this story a few times, but it bears repeating. If you have log exhaust those flappers are a good idea to keep them in place. If you're beached and wakes are hitting the back of your boat water can run up through the exhaust over the risers getting water into the open exhaust valves. Milkshake. It's happened to me. I also made the mistake of coming into shore a little hot, shut down and the water rushed in the same way. Milkshake. IMO flappers are an inexpensive necessary boat part.

Good looking boat, have fun.

Engine Mechanical / Electrical / Re: Colder firing spark plugs
« on: May 23, 2017, 05:28:33 PM »
My set up requires a colder plug. I've always run the NGK V-Power 8.

Jet boats leak. That being said it's good to know where it's leaking and how much. Silicone helps.

Easier way to find the leak is park on a slope or jack up the front of your trailer. Put the plugs in and fill it with the hose a few inches. You'll see it leaking out.

Packing at the shaft is supposed to drip a little. Everything else can be addressed.

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