Toggle navigation
Home
Forum
Shop Apparel
Register
Login
1 Hour
1 Day
1 Week
1 Month
Forever
SoCal Jet Boats
Tech Talk
Engine Mechanical / Electrical
Flexplates
Search
July 28, 2026, 09:00:36 AM |
Calendar
0
Reactions
« previous
next »
Print
Pages: [
1
]
el mojado
Hero Member
Karma: +15/-0
Reactions:
Flexplates
«
on:
October 13, 2015, 11:00:34 PM »
Standard or SFI? WHY? I replaced the flexplate and now I have a vibration that was never there. its throughout the RPM range . Enough that it left a tingling in my finger tips after a long run from the Havasu Chanel to almost near Steamboat cove and back. It wasn't there the last time I ran the boat from AVI to Pirates Cove and back. It was the only change in the drive line.
«
Last Edit: October 13, 2015, 11:19:58 PM by el mojado
»
Logged
I once tried to NOT have a good time. It just didn't work out!
el mojado
Hero Member
Karma: +15/-0
Reactions:
Re: Flexplates
«
Reply #1 on:
October 13, 2015, 11:11:24 PM »
Oh yeah, 454 GEN IV BBC
Logged
I once tried to NOT have a good time. It just didn't work out!
capogniracing
Macho Member
Karma: +68/-0
Reactions:
Re: Flexplates
«
Reply #2 on:
October 14, 2015, 05:47:29 AM »
You must have got a weighted or non weighted flex plate. Need to find out how your motor is balanced...
"You just got BECKY'D"
Logged
J2
Full Member
Karma: +5/-0
Reactions:
Re: Flexplates
«
Reply #3 on:
October 14, 2015, 06:14:52 AM »
This change was bad. Now your completely unbalanced and it will tear itself apart.
Don't run it until you fix it.
Do what capogniracing suggested.
What did you have on their before? Flexplate or Flywheel
Post a picture of it and what you put in if you have one
Logged
crewchief22
Team Member
Informative Member
Karma: +66/-0
Reactions:
Re: Flexplates
«
Reply #4 on:
October 14, 2015, 06:21:49 AM »
If it's a basically stock 454 it's externally balanced, while the other BBC engines (396,402,427) were all internally balanced and used a traditional SBC flexplate.
Where did you get the replacement flexplate?
Logged
Boat #1: '77 Hondo Pantera GT Jet
"Racing is life! Anything that happens before or after, is just waiting" Steve McQueen
The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
el mojado
Hero Member
Karma: +15/-0
Reactions:
Re: Flexplates
«
Reply #5 on:
October 14, 2015, 06:55:49 AM »
Previous was weighted. The new one was weighted as well. It was definitely out of balance. Vatozone part. Do I NEED SFI? Previous one was not.
Logged
I once tried to NOT have a good time. It just didn't work out!
capogniracing
Macho Member
Karma: +68/-0
Reactions:
Re: Flexplates
«
Reply #6 on:
October 14, 2015, 07:42:58 AM »
No need for sfi, any chance you put it on backwards? Or didn't line up dowl pin hole in crank
"You just got BECKY'D"
Logged
Print
Pages: [
1
]
« previous
next »
SoCal Jet Boats
Tech Talk
Engine Mechanical / Electrical
Flexplates
SMFPacks CMS 1.0.3 © 2026
