Hooked Hull 2024
Pa Angler reply :
I thought I had engine problems with all the smoking and loss of top end mph I went from 60+ mph to mid 40 mph and the smoking motor was the cause I have been notified by my Nitro dealer that my 2011 Z7 has a hooked hull and the boat is being replaced by Nitro I was also told that Nitro wants my boat back fast as Nitro wants to tear it apart and find what went wrong it's the first one that wound up with a hooked hull sold at my dealer.
I didn't know anything about a hooked hull until now I was shown what to look for as I can see a section of the hull not making contact with the bunks all the way across the hull from port to starboard in front of the transom.
Has anyone ever had this issue?
Tight Lines
Pa Angler
martintheduck reply :
So - You get a brand new boat out of the deal... That's awesome! Could have gotten stuck with the "can't help you...." It'd be cool if you could take pictures of it somehow and show us what this "hooked hull" looks like!
tomustang reply :
Haven't heard about it. Good to hear the matter is being taken care of, what are they going to replace it with?
Pa Angler reply :
On 10/13/2013 at 3:10 PM, tomustang said:Haven't heard about it. Good to hear the matter is being taken care of, what are they going to replace it with?
A new 2013 or 2014 Z7 which ever is in stock of my color combo. It's just the boat my motor and extras get transfered over to the new boat.
Tight Lines
Pa Angler
Sam reply :
Glad to hear BPS and Nitro are standing behind their product.
Very interested in what happened during the manufacturing process to cause the problem.
Will never get a Nitro as the Richmond, VA BPS Power Pros are terrible but it is interesting to read about your hooked hull.
Please post a pic if you can and glad everything worked out for you.
And good luck with your Nitro Power Pros service. You may need it.
slonezp reply :
At least it's happening at the end of the season instead of the beginning.
Mytoyzfishing reply :
never heard of it till now. Glad its getting taken care of. LIke others say pictures if possible would be great so we can see what it looks like.
I have to agree with Sam, the Richmond BPS is horrible. Only reason why I go to it is if I have to be over that way for work and its only to browse the fishing section.
Pa Angler reply :
I didn't purchase the Z7 at BPS I purchased mine at a stand alone dealership which is why I may be getting the results that I am.
Tight Lines
Pa Angler
J Francho reply :
What is a "hooked hull"? Pics?
slonezp reply :
On 10/16/2013 at 2:20 AM, J Francho said:What is a "hooked hull"? Pics?
I don't know either, but this is the second one I've heard of in as many weeks. The other one is on a Charger.
MacP reply :
J Francho reply :
The only way I could see that happening is if a stringer came loose, and even then, I'd think the hull or top cap would crack.
retiredbosn reply :
From looking online the two main causes are poor quality and the transom ends up being lower that the hull, or storing the boat with having the transom unsupported
BKeith reply :
A hooked hull can be caused by a number of problems. One of the main causes is not sitting on the bunks properly. Then you can have a manufacturing defect, where the hull was not properly supported or the mold was bad, and developed a hook. Since this is a 2011 hull, one would think it's not a mold problem if this is the first one Nitro has had, or could just be the one that has shown up first, and once they check yours, they may send out a bulletin to have all the hulls that were popped from that mold checked. I remember back when Stratos replaced a bunch of hulls on one of their boats because they would do a Bat turn for no real reason when up and flying on the pad.
Then you have boats that have a hook built in to help performance. Allison is one, if you take the hook out of some Allison hulls, you will ruin it. However, a hook in a hull that's not suppose to have one, is never a good thing. That's why I always blueprint my hulls with a lot of body filler and sand my hulls with 320 grit. Makes them flat and smooth so they slide across the water nice and FAST.
Brian Needham reply :
so what does "not sitting on the bunks properly" actually mean?
too far on the bunk? not enough? misaligned?
tnriverluver reply :
Pretty hard to imagine a fiberglass bass boat hull getting a hook from the trailer bunks being out of whack. Happens quite often with aluminum boats if the transom overhangs the bunks too far but a glass boat would almost certainly be a manufacturer defect or broken stringer. I very large cruiser that weighs many thousands of pounds yes, but not a 1-2 thousand lb boat. Glad to hear Tracker is stepping up to the plate and correcting this for you.
retiredbosn reply :
The boat's transom should be fully on the bunks.
Pa Angler reply :
On 10/16/2013 at 5:38 AM, BKeith said:A hooked hull can be caused by a number of problems. One of the main causes is not sitting on the bunks properly. Then you can have a manufacturing defect, where the hull was not properly supported or the mold was bad, and developed a hook. Since this is a 2011 hull, one would think it's not a mold problem if this is the first one Nitro has had, or could just be the one that has shown up first, and once they check yours, they may send out a bulletin to have all the hulls that were popped from that mold checked. I remember back when Stratos replaced a bunch of hulls on one of their boats because they would do a Bat turn for no real reason when up and flying on the pad.
Then you have boats that have a hook built in to help performance. Allison is one, if you take the hook out of some Allison hulls, you will ruin it. However, a hook in a hull that's not suppose to have one, is never a good thing. That's why I always blueprint my hulls with a lot of body filler and sand my hulls with 320 grit. Makes them flat and smooth so they slide across the water nice and FAST.
This all true as I have done some research online however I can rule out rest on the bunks wrong as Tracker builds the trailer to the model the Z7 centers itself as I found through loading it. The sales manager thinks it's due from shrinking fiberglass Tracker wants this boat back fast makes me think that there's an issue with the laying of fiberglass, resin and maybe the mold this started in August of 2012 when I lost 10 mph and continued to get worse now 15 mph to 17 mph loss the manager thinks that the hull is in a constant state of shrinking and will continue to do so. I have had the boat back more than enough times before a hooked hull was looked into.
Tight Lines
Pa Angler
Fishing Rhino reply :
On 10/16/2013 at 7:36 AM, retiredbosn said:The boat's transom should be fully on the bunks.
Not possible with a stepped hull. But the knees or other transom supports should extend onto the step so the transom is properly supported.
It is not evident because of the angle of the photo, but the transom is a foot behind the step, and the bunks end at the step.
Whether a boat has bunks or rollers, they should be placed so the weight of the boat is carried by the stringers or frames/bulkheads of the boat. If the weight is borne by a different area, the hull will deform. Since almost any material used in building boats has a "memory", over time, that depression will not spring back. Even if it does, the area will tend to deform when the pressure of the water acts upon it, forming a hook when underway.
Pa Angler reply :
On 10/16/2013 at 7:53 PM, Fishing Rhino said:Not possible with a stepped hull. But the knees or other transom supports should extend onto the step so the transom is properly supported.
It is not evident because of the angle of the photo, but the transom is a foot behind the step, and the bunks end at the step.
Whether a boat has bunks or rollers, they should be placed so the weight of the boat is carried by the stringers or frames/bulkheads of the boat. If the weight is borne by a different area, the hull will deform. Since almost any material used in building boats has a "memory", over time, that depression will not spring back. Even if it does, the area will tend to deform when the pressure of the water acts upon it, forming a hook when underway.
That'a a good pic of Nitro's RPS as you can see the drain plug is centered inline with the rear roller and the bottom were the boat sits on the bunk is stepped so it would be highly unlikely that a Nitro Z7, 8 or 9 won't center it's self. Color of transome area looks like Nightfire my Z7 color combo is PR56A.
Thanks for the pic.
Pa Angler
Pa Angler reply :
On 10/16/2013 at 3:05 AM, MacP said:
This is an excellent illustration of what a hook is and this is what my hull looks like on the bunks front and rear of the hook is sitting on the bunks and the middle off the bunks. Thank You for the illustration.
Tight Lines
Pa Angler
Fishing Rhino reply :
On 10/16/2013 at 8:51 PM, Pa Angler said:That'a a good pic of Nitro's RPS as you can see the drain plug is centered inline with the rear roller and the bottom were the boat sits on the bunk is stepped so it would be highly unlikely that a Nitro Z7, 8 or 9 won't center it's self. Color of transome area looks like Nightfire my Z7 color combo is PR56A.
Thanks for the pic.
Pa Angler
The boat in the photo is a pre RPS hull. The main difference between the older hull and the RPS hull is the distance between the step and the transom. The step is much longer on the Z7 pre RPS. Probably twice as long. By shortening that distance, it puts the lift at the back edge of the step closer to the transom, reducing the leverage of the mass of the motor, allowing the hull to lift much faster at the rear.
The Z-7 in the photo took much longer to get on plane than my Z-8 with the rapid planing system.
A helpful hint for those whose boats struggle to get on plane at times. Steer the motor to the left or right when taking off. By pushing the stern to the left or right on takeoff provides more lift for the stern since you are using the lift afforded by the angle of the v bottom. When the rear starts to lift, you can steer a bit in the opposite direction to get on plane even faster.
With a little practice you'll learn how much steering input is optimum for getting on plane faster, and the best tempo for steering slightly back and forth.
Pa Angler reply :
On 10/17/2013 at 6:55 AM, Fishing Rhino said:The boat in the photo is a pre RPS hull. The main difference between the older hull and the RPS hull is the distance between the step and the transom. The step is much longer on the Z7 pre RPS. Probably twice as long. By shortening that distance, it puts the lift at the back edge of the step closer to the transom, reducing the leverage of the mass of the motor, allowing the hull to lift much faster at the rear.
The Z-7 in the photo took much longer to get on plane than my Z-8 with the rapid planing system.
A helpful hint for those whose boats struggle to get on plane at times. Steer the motor to the left or right when taking off. By pushing the stern to the left or right on takeoff provides more lift for the stern since you are using the lift afforded by the angle of the v bottom. When the rear starts to lift, you can steer a bit in the opposite direction to get on plane even faster.
With a little practice you'll learn how much steering input is optimum for getting on plane faster, and the best tempo for steering slightly back and forth.
FishinDaddy reply :
Good tip Tom. My Triton does better with a slow right turn. If I go left I get cavitation from the leading edge of the prop being in disturbed water.
Fishing Rhino reply :
On 10/17/2013 at 7:25 AM, Pa Angler said:
OOOPS, I guess I didn't take a close enough as the tunnel I have at the transome is missing but the way mine sits on the bunk it looks a lot like yours. What year was it?Tight LinesPa Angler
It is a 2009. The RPS was introduced in 2010.
Pa Angler reply :
On 10/17/2013 at 4:24 PM, Fishing Rhino said:It is a 2009. The RPS was introduced in 2010.
The color is like mine except for the console mine has the Nightfire color according to my dealer this basic color combo is the most popular.
Thanks for the pic and info.
Pa Angler
Pa Angler reply :
I received a call this morning 10-21-2013 from my Nitro dealer due to some of the options on my Z7 Tracker Marine is going to build a new boat "BUT" I still have to use my current outboard, jackplate, trailer and all the items I supplied. I'll be getting two new consoles, new bow Lowrance HDS-5 with Insight, new console HDS-7 with Insight, new hot foot, new dual livewell oxygenizers, new auto bilge pump, new tilt hydraulic steering, new seats, new keel guard and a new steering wheel trim lever. I supplied the 36v trolling motor, trolling motor quick release bracket, Ram trolling motor stabilizer, four AGM batteries, four bank 60amp charger.
Tight Lines
Pa Angler
tomustang reply :
Are they going to do all the work to move the equiptment over?
Pa Angler reply :
On 10/22/2013 at 8:15 AM, tomustang said:Are they going to do all the work to move the equiptment over?
Yes, the Nitro dealer will do the transfer at no cost to me as they were the ones who did the work before I took delivery back in February of 2011 they were items not offered by Nitro so I was given a credit for the stock 24v trolling motor, stock onboard charger and 3 stock batteries.
Tracker Marine is going out of it's way to replace a boat that has developed a hooked hull while in use and give me the kind of boat I purchased.
Tight Lines
Pa Angler
retiredbosn reply :
That's awesome, glad they are backing their product so well. Sucks you're missing time on the water though.
Pa Angler reply :
On 10/22/2013 at 9:12 PM, retiredbosn said:That's awesome, glad they are backing their product so well. Sucks you're missing time on the water though.
I don't do a lot of fishing this time of year as my work is getting to peak time with O.T. hours.
Tight Lines
Pa Angler
Sam reply :
On 10/16/2013 at 2:18 AM, Pa Angler said:I didn't purchase the Z7 at BPS I purchased mine at a stand alone dealership which is why I may be getting the results that I am.
Tight Lines
Pa Angler
No, I would think the Nitro people would stand behind their product no matter how you obtained your boat, other than stealing it.
What happened to you could happen to many people and there could be a large product recall which would cost BPS millions of dollars.
Have you sent a letter to BPS asking them, in a nice and non-adversarial manner if they have encountered this problem with other boats and if they could send a specialist to view your craft to determine what happened.
If that does not work or if the inspector gives you some BS, sue the SOBs.
tomustang reply :
Couldn't have happened at a better time, our area is displacing the fish as the colder temps come to stay.
Fishing Rhino reply :
On 11/2/2013 at 5:54 AM, Sam said:No, I would think the Nitro people would stand behind their product no matter how you obtained your boat, other than stealing it.
What happened to you could happen to many people and there could be a large product recall which would cost BPS millions of dollars.
Have you sent a letter to BPS asking them, in a nice and non-adversarial manner if they have encountered this problem with other boats and if they could send a specialist to view your craft to determine what happened.
If that does not work or if the inspector gives you some BS, sue the SOBs.
Sue them? On what grounds?
They are replacing the hull at no cost. And, transferring the motor, all the electronics gear and whatever else is needed to the new boat. Seems to me they are doing everything that could be reasonably expected to rectify the situation.
flyfisher reply :
On 11/2/2013 at 5:54 AM, Sam said:No, I would think the Nitro people would stand behind their product no matter how you obtained your boat, other than stealing it.
What happened to you could happen to many people and there could be a large product recall which would cost BPS millions of dollars.
Have you sent a letter to BPS asking them, in a nice and non-adversarial manner if they have encountered this problem with other boats and if they could send a specialist to view your craft to determine what happened.
If that does not work or if the inspector gives you some BS, sue the SOBs.
Sue them for what? They are replacing a product that was deemed faulty and not charging anything to do it either.
Seems like it is pretty good service to me and while ti sucks something happened they are doing everything they can to make it right.
Everyone just wants to sue or complain without giving people an opportunity to fix their mistake...
Pa Angler reply :
Yes, It doesn't make sense to file a lawsuit when Tracker Marine is replacing the boat. The title for my current Z7 was signed and received by Tracker Marine on Tuesday October 29, 2013 I'm just waiting for the production date for my replacement Z7.
Tight Lines
Pa Angler.
Pa Angler reply :
I just thought I'd give an update on my replacement Z7. I called my contact at Tracker Marine and I was told scheduled completion date on the Z7 is December 11, 2013 and then it's a matter of shipping to my dealer. Tracker Marine does shutdown over the Christmas holidays and since I won't be fishing up here in PA it really doesn't matter when it gets delivered as long as it's before spring.
Tight Lines
Pa Angler
slonezp reply :
At least their on top of things
scrutch reply :
Doesn't appear to be much to complain about here. Glad to hear they're standing behind their product.
BassnChris reply :
New boat. Good deal...........glad to hear they are doing right!
It will be a kind of like Christmas present.
Pa Angler reply :
I don't mean to bump this up but I did say I would give a final report on the outcome. I took the new 2014 Nitro Z7 to the storage facility on 02-10-2014 it was a shiney clean boat when I left the dealer but buy the time I got it to the storage facility it was a dirty mess with the wet salty roads here in PA. As I stated earlier in this post the only items moved from my old 2011 Z7 are the 36v trolling motor, 4 AGM battieries, 4 bank 60amp charger, Loc-R-Bar, Outboard, 2 cycle oil tank and manual jackplate I did have to keep the orginal trailer and boat cover though. When I was told I was getting new Lowrance electronics I thought I was gettting the what was on the old 2011 Z7 which included Gen 1: bow HDS 5 Insight, dash HDS 7 Insight and Struturescan to my surprise I was givin the upgraded Gen 2 across the board. I have to say the way Tracker Marine took care of replacing a boat with hooked hull was outstanding. My dealer told me that 2 more Z7's around my serial number also being replaced. Now once all the freak weather in the northeast is finished and the ice disappears from the lakes I will give a shake down run. I CAN'T WAIT!!!!!
Tight Lines
Pa Angler
slonezp reply :
Nice to hear a happy resolution
retiredbosn reply :
Sounds like they took real good care of u. Glad to hear it 
BuckMaxx reply :
Ranger still make em one at a time...
J Francho reply :
…with a chop gun, just like Nitro.
jhoffman reply :
Did I read that right that your motor was smoking? Man Id want some diagnostics run if thats the case to find out if it did any damage.
Pa Angler reply :
On 2/13/2014 at 3:56 AM, jhoffman said:Did I read that right that your motor was smoking? Man Id want some diagnostics run if thats the case to find out if it did any damage.
Three times twice by my dealer and once in NY no fault codes came up.
tomustang reply :
On 2/11/2014 at 10:54 PM, Pa Angler said:Now once all the freak weather in the northeast is finished and the ice disappears from the lakes I will give a shake down run. I CAN'T WAIT!!!!!
Tight Lines
Pa Angler
The lehigh is mostly clear, ramps are still iced though
Pa Angler reply :
On 2/13/2014 at 10:39 AM, tomustang said:The lehigh is mostly clear, ramps are still iced though
There be no fishing the Lehigh River for me with storm after storm coming our way 12" today with 3" to 6" tonight heck I don't even fish the Lehigh River in the best of weather once one has fished the 1000 Islands of the St Lawrence River nothing down here can measure up.
Tight Lines
Pa Angler
tomustang reply :
On 2/14/2014 at 9:32 AM, Pa Angler said:There be no fishing the Lehigh River for me with storm after storm coming our way 12" today with 3" to 6" tonight heck I don't even fish the Lehigh River in the best of weather once one has fished the 1000 Islands of the St Lawrence River nothing down here can measure up.
Tight Lines
Pa Angler
That's fine, but what do you mean by measure up?
It's distance is a lot closer than the lawrence river. I wouldn't drive all the way up there to try out a boat though. Warmer days are coming.
Pa Angler reply :
On 2/14/2014 at 9:49 AM, tomustang said:That's fine, but what do you mean by measure up?
It's distance is a lot closer than the lawrence river. I wouldn't drive all the way up there to try out a boat though. Warmer days are coming.
I wouldn't run on the Lehgh River test runing my Bass boat at WOT I would take it to the Pack for that just stating I don't fish the Lehigh River no matter how close it is not knowning where I would run out water would be an issue. I spend a total of five weeks of vacation between the St Lawrence and Black Lake, NY which is only 7 miles from the St lawrence and 1 week at the Pack. Not trying to be disrespectful I just don't fish the Lehigh River maybe if I had a Tracker with a jet motor it would be an option for me but I like my glass hull the way it is in one piece. I also fish Lake Ontario while I'm up there as well. Yes, warmer days are coming and my first trip of the year will be a day at the Pack. Thank you for the suggestion I'll keep in mind if I ever get info on where the low water areas are.
Tight Lines
Pa Angler
tomustang reply :
My glass boat runs it just fine and I do all my testing there, even top speed runs. I know the whole stretch that you can access from the 33 ramp. Let me know if you ever want to go down that launch, I'd be more than happy to show you around, I can even offer good spots.On 2/14/2014 at 10:16 AM, Pa Angler said:I wouldn't run on the Lehgh River test runing my Bass boat at WOT I would take it to the Pack for that just stating I don't fish the Lehigh River no matter how close it is not knowning where I would run out water would be an issue. I spend a total of five weeks of vacation between the St Lawrence and Black Lake, NY which is only 7 miles from the St lawrence and 1 week at the Pack. Not trying to be disrespectful I just don't fish the Lehigh River maybe if I had a Tracker with a jet motor it would be an option for me but I like my glass hull the way it is in one piece. I also fish Lake Ontario while I'm up there as well. Yes, warmer days are coming and my first trip of the year will be a day at the Pack. Thank you for the suggestion I'll keep in mind if I ever get info on where the low water areas are.
Tight Lines
Pa Angler
Pa Angler reply :
On 2/14/2014 at 11:48 AM, tomustang said:My glass boat runs it just fine and I do all my testing there, even top speed runs. I know the whole stretch that you can access from the 33 ramp. Let me know if you ever want to go down that launch, I'd be more than happy to show you around, I can even offer good spots.
Thank you for the offer I'll keep it in mind if and when I decide to ever run the Lehigh River.
Tight Lines
Pa Angler
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