JDFester
Jet Boat Junkie
- Messages
- 80
- Reaction score
- 121
- Points
- 127
- Location
- Loganville, GA
- Boat Make
- Yamaha
- Year
- 2013
- Boat Model
- AR
- Boat Length
- 19
As there are already countless threads with opinions on which is better, etc., I will start this post with a consideration I haven't seen on here before, and then move on to my review/$0.02 opinion...
Something I haven't seen discussed in any of the threads is wear. I just bought a new-to-me 2013 AR-190, which came with the Thrust Vector XLs. At initial inspection, I noticed that they were missing a screw into one of the cross bars, and that they did not hang straight; the flat metal U bracket had some twist, and even the plastic fins appeared to have some slight warp. I insisted that the dealer repair them; all they did was add a screw (with no thread-lock; another reason I like to do things myself). They did not straighten anything. Long story short, it improved the handling a little (it was never bad, in my opinion), and I figured I'd fix it right after the season ends.
Meanwhile, I'm reading through as many threads as I can whenever I get the chance, and am intrigued with the Cobras. Enter the Labor Day sale, and I figure I'll give them a try; I get 30 days free after all! Emailed Jeff (@Cobra Jet Steering LLC) to ask which system to go with in my situation, and he responds within an hour with what and why, and I order the Ultimate system with fangs, and an EZ-Lock. As I wait for the USPS, I keep reading threads, and come across one where someone was replacing TVs and asked if there was anything they needed to know... Jeff responds that you need the original Stainless spacers that were removed when the TVs were installed; CRAP. I don't have those, being a used boat and all. Check my local dealers, fastest I can get them is 1 week, maybe faster online with ridiculous shipping, but I'm a cheapskate. On a whim, I emailed Jeff and asked if he happened to know the dimensions of the spacer so I could by them elsewhere. Again, he responds right away with the dimensions. I buy them local and have them that afternoon when my Cobras arrive in the mail!
Now on to the install, or so I thought. When I take the TVs off, the first thing I notice is the wear on the starboard standoff ... all the way through it to the threads under the reverse gate. Then I put the spacer in the hole in the reverse gate ... Uh oh. The mechanical engineer in me starts screaming "what idiot replaced a stainless bushing with Aluminum on Aluminum contact at a pivot point?!?" Still haven't figured that one out. Anyway, another email to Jeff asking options; do I need to replace the reverse gate at this point? 1.5mm of non-circular wear in the gate, and this thing isn't going to be right even back on the stainless spacer... upon his recommendation, I order larger diameter bushings and bore out the holes in the reverse gate to be true and circular again, and to match the larger bushings. Adds a day to my install, but no harm as I can't get to the lake until the weekend anyway.
Ok; I can only speak to my own experience here. I did not install the Thrust Vectors, so I cannot guarantee they were installed correctly, nor can I say how long the screw had been out, etc. I will say that the boat has higher hours than most on here: 495 now. Having the misalignment over time would contribute to the amount of wear to the section of the standoff under the fin, and therefore put slightly uneven force on the reverse gate contributing slightly to the wear on that. However, from an engineering perspective, replacing a stainless steel bearing surface with aluminum on aluminum friction was a TERRIBLE idea, and I am honestly surprised the damage wasn't worse.
That was a lot longer than I intended, but I wanted to get all of the info in there. Now, if you're interested in my opinion of the Cobras coming from the TVs, read on to the next post!
Something I haven't seen discussed in any of the threads is wear. I just bought a new-to-me 2013 AR-190, which came with the Thrust Vector XLs. At initial inspection, I noticed that they were missing a screw into one of the cross bars, and that they did not hang straight; the flat metal U bracket had some twist, and even the plastic fins appeared to have some slight warp. I insisted that the dealer repair them; all they did was add a screw (with no thread-lock; another reason I like to do things myself). They did not straighten anything. Long story short, it improved the handling a little (it was never bad, in my opinion), and I figured I'd fix it right after the season ends.
Meanwhile, I'm reading through as many threads as I can whenever I get the chance, and am intrigued with the Cobras. Enter the Labor Day sale, and I figure I'll give them a try; I get 30 days free after all! Emailed Jeff (@Cobra Jet Steering LLC) to ask which system to go with in my situation, and he responds within an hour with what and why, and I order the Ultimate system with fangs, and an EZ-Lock. As I wait for the USPS, I keep reading threads, and come across one where someone was replacing TVs and asked if there was anything they needed to know... Jeff responds that you need the original Stainless spacers that were removed when the TVs were installed; CRAP. I don't have those, being a used boat and all. Check my local dealers, fastest I can get them is 1 week, maybe faster online with ridiculous shipping, but I'm a cheapskate. On a whim, I emailed Jeff and asked if he happened to know the dimensions of the spacer so I could by them elsewhere. Again, he responds right away with the dimensions. I buy them local and have them that afternoon when my Cobras arrive in the mail!
Now on to the install, or so I thought. When I take the TVs off, the first thing I notice is the wear on the starboard standoff ... all the way through it to the threads under the reverse gate. Then I put the spacer in the hole in the reverse gate ... Uh oh. The mechanical engineer in me starts screaming "what idiot replaced a stainless bushing with Aluminum on Aluminum contact at a pivot point?!?" Still haven't figured that one out. Anyway, another email to Jeff asking options; do I need to replace the reverse gate at this point? 1.5mm of non-circular wear in the gate, and this thing isn't going to be right even back on the stainless spacer... upon his recommendation, I order larger diameter bushings and bore out the holes in the reverse gate to be true and circular again, and to match the larger bushings. Adds a day to my install, but no harm as I can't get to the lake until the weekend anyway.
Ok; I can only speak to my own experience here. I did not install the Thrust Vectors, so I cannot guarantee they were installed correctly, nor can I say how long the screw had been out, etc. I will say that the boat has higher hours than most on here: 495 now. Having the misalignment over time would contribute to the amount of wear to the section of the standoff under the fin, and therefore put slightly uneven force on the reverse gate contributing slightly to the wear on that. However, from an engineering perspective, replacing a stainless steel bearing surface with aluminum on aluminum friction was a TERRIBLE idea, and I am honestly surprised the damage wasn't worse.
That was a lot longer than I intended, but I wanted to get all of the info in there. Now, if you're interested in my opinion of the Cobras coming from the TVs, read on to the next post!
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