catchersrock
Ensign
Posts: 548 
Location: Maiden NC
Sea Pro model and year: 2020 Sea Pro 228
|
Post by catchersrock on Jul 18, 2018 11:45:16 GMT -6
So, at the lake the other day, I put her in and took off up the lake. I was at about 3/4 throttle and looked down and noticed the RPM gage said 5800 and the motor was trimmed all the way down. This was not where the RPM would normally be. I shut the engine down, looked it over, and restarted it. Everything seemed fine but still RPM's way too high on the gage. I ran her up to full throttle trimmed down and the gage read 6200. I put her back on the trailer and went home.
Normally I struggle to get to 5800 wide open, lightly loaded, and, trimmed out just right.
Help???
|
|
catchersrock
Ensign
Posts: 548
Location: Maiden NC
Sea Pro model and year: 2020 Sea Pro 228
|
Post by catchersrock on Jul 18, 2018 12:01:57 GMT -6
Also, speed seemed low for the throttle position. What are the symptoms for a hub going bad?
|
|
|
|
Post by Juan on Jul 18, 2018 13:20:33 GMT -6
What are the symptoms for a hub going bad? Everything you just mentioned.. sounds like the hub is slipping. It will only get worse. You should be able to put it in gear and try to spin the prop to check it but since that doesn't always work when the hub is slipping only at higher rpms, you can pull the prop and mark the prop and the hub then replace it and after running it, pull it again and check to see if the marks still line up. |
|
Warpig
Master Chief
Posts: 312
Location: Northeast Ohio
|
Post by Warpig on Jul 19, 2018 5:30:31 GMT -6
My tach occasionally goes batty on me and reads high. Think it is a wiring issue somewhere. However, if based on throttle position speed is low, I'd start with the hub on the prop.
|
|
|
|
Post by freezerfiller on Jul 19, 2018 6:42:36 GMT -6
Is it reading correctly at idle? I'm leaning hub, but tachs do go wonky sometimes.
|
|
Warpig
Master Chief
Posts: 312
Location: Northeast Ohio
|
Post by Warpig on Jul 19, 2018 11:31:10 GMT -6
When my tach is off, its off across the board. It will read 2500 RPM's at idle. Then somehow magically it corrects itself after a few power cycles.
|
|
|
|
Post by Juan on Jul 19, 2018 17:14:17 GMT -6
Also, speed seemed low for the throttle position. What are the symptoms for a hub going bad? I don't think it's your tach. Still say it's a spun hub based on speed seeming low. |
|
985crabs
Captain
2000 V1900 Bay Series, Yamaha 150 Carb. 2
Posts: 1,309
|
Post by 985crabs on Jul 19, 2018 19:41:09 GMT -6
So, how does one spin a hub? Do you have to hit something or does it happen organically?
|
|
|
|
Post by Juan on Jul 20, 2018 2:33:16 GMT -6
Normally you have to hit something to spin a hub but it's just rubber that's designed to absorb shock when shifting and to save your drive train if you hit something so not sure but I guess one could dry rot or wear out if you shift in and out of gear a lot.
|
|
|
|
Post by freezerfiller on Jul 20, 2018 12:53:03 GMT -6
Yeah they can just wear out. Pretty much like a motor mount in a car.
|
|
