Go Back  Offshoreonly.com > Technical > General Q & A
Sea Foam yes or no? >

Sea Foam yes or no?

Notices

Sea Foam yes or no?

Old 02-08-2022, 06:55 PM
  #1  
Registered
Thread Starter
 
Join Date: Apr 2019
Posts: 498
Received 111 Likes on 60 Posts
Default Sea Foam yes or no?

I restored my old Fountain it sat a while is it OK to use in fuel tank??
Nothing personel 353 is offline  
Old 02-08-2022, 07:38 PM
  #2  
VIP Member
VIP Member
iTrader: (2)
 
Drake22.250's Avatar
 
Join Date: Oct 2011
Location: At Work
Posts: 953
Received 182 Likes on 75 Posts
Default

My 2 cents is to drain the tank and put fresh fuel in with some additive.
Drake22.250 is offline  
The following 3 users liked this post by Drake22.250:
260cat (02-09-2022), IGetWet (02-09-2022), Nothing personel 353 (02-08-2022)
Old 02-08-2022, 09:57 PM
  #3  
Charter Member # 55
Charter Member
 
Griff's Avatar
 
Join Date: Oct 2000
Location: Omaha/LOTO
Posts: 18,860
Received 1,171 Likes on 577 Posts
Default

What is "a while?" and what engines??
If more than 2-3 years, I'd probably drain it.
Griff is offline  
The following 3 users liked this post by Griff:
260cat (02-09-2022), SB (02-08-2022), Twin O/B Sonic (02-09-2022)
Old 02-09-2022, 06:44 AM
  #4  
Platinum Member
Platinum Member
iTrader: (7)
 
getrdunn's Avatar
 
Join Date: Feb 2009
Location: NW Michigan
Posts: 7,865
Received 1,209 Likes on 646 Posts
Default

I have to deal with the same and going to drain the tanks. Just isn’t worth it. If was a pair of 330’s I wouldn’t be as concerned. You can always use the old fuel in lawnmowers, tractors etc.

Btw I’m going to use an old electric fuel pump.
getrdunn is offline  
The following users liked this post:
ThisIsLivin (02-09-2022)
Old 02-09-2022, 07:30 AM
  #5  
Platinum Member
Platinum Member
 
Twin O/B Sonic's Avatar
 
Join Date: Mar 2002
Location: Cardington Ohio
Posts: 3,602
Received 975 Likes on 394 Posts
Default

And climate.

Gas loses octane fast in Fla, not so much in Ohio.

Regular gas, not in Fla, 2 yrs old, would scare me.

Smell it.
It stinks when it starts to turn to varnish.

As to Seafoam, I swear by it!
Cars, boats, motorcycles etc.

Its biggest bang is clearing carbon from rings etc, EFI injectors and carbs.

Also in DFI vehicles.

I buy 6 or more cans per.



Originally Posted by Griff View Post
What is "a while?" and what engines??
If more than 2-3 years, I'd probably drain it.
Twin O/B Sonic is offline  
The following 5 users liked this post by Twin O/B Sonic:
260cat (02-10-2022), Gimme Fuel (02-10-2022), IGetWet (02-09-2022), Nothing personel 353 (02-09-2022), resurrected (02-09-2022)
Old 02-09-2022, 07:52 AM
  #6  
Registered
Thread Starter
 
Join Date: Apr 2019
Posts: 498
Received 111 Likes on 60 Posts
Default

Close to a year sat in 1 marina when we moved it I filled with hi test? It's a 27-29' Fountain 2x454HO 1990.New guy water tested it a few times and I drove it on a run last Saturday. I hear popping from both motors idle and at 3800=4000 maybe fuel? I hope not springs or valves oil pressure good motors power up fine? Going to fill her up again today and see?? PS the gas does suck in Florida thanks!
Nothing personel 353 is offline  
Old 02-09-2022, 08:31 AM
  #7  
SB
Registered
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 12,464
Received 2,137 Likes on 910 Posts
Default

If you suspect bad gas, do a sample. Remove a fuel water separator and fill a clear clean dry jar or bottle. Wait 1hr.

Do not refill the boat ! you need to remove the old gas if bad.

My goodness.

btw: cap/rotor /etc can do same thing. Take a look.
SB is offline  
The following 2 users liked this post by SB:
260cat (02-10-2022), Nothing personel 353 (02-09-2022)
Old 02-09-2022, 08:31 AM
  #8  
Registered
iTrader: (3)
 
cigrocket's Avatar
 
Join Date: Feb 2004
Location: Endicott, NY
Posts: 2,519
Received 106 Likes on 54 Posts
Default

Drain it, fresh gas, K100 additive.......................or you will chase fuel related gremlins.
cigrocket is offline  
The following 2 users liked this post by cigrocket:
getrdunn (02-09-2022), Nothing personel 353 (02-09-2022)
Old 02-09-2022, 09:00 AM
  #9  
Registered
Thread Starter
 
Join Date: Apr 2019
Posts: 498
Received 111 Likes on 60 Posts
Default

Going to check fuel filters put new ones fill her up and use her?
Nothing personel 353 is offline  
Old 02-09-2022, 09:24 AM
  #10  
Platinum Member
Platinum Member
iTrader: (7)
 
getrdunn's Avatar
 
Join Date: Feb 2009
Location: NW Michigan
Posts: 7,865
Received 1,209 Likes on 646 Posts
Default

Originally Posted by Nothing personel 353 View Post
Going to check fuel filters put new ones fill her up and use her?

I suspect your problem is not bad fuel related. JMO…. Regardless follow the advice given or it may haunt you!
getrdunn is offline  
The following users liked this post:
SB (02-09-2022)

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.