to Pascoe method install my new gas tank or foaminstall?

[imonna 19 6]

Ok, I hate having to revisit this, but my head is spinning on this one.  i have read all the posts here and for the most part people suggest the pascoe method of gas tank installing, which is what i was planning on doing.

However, some people here disagree and many people on some other forums ripped the pascoe method to shreds and got me to to question whether the thin beads of 5200 between the plastic and the coffin will have enough hold, so i would love to get  vote from people that have some personal experience with this dilemma.  

I really think you guys are much more level headed and am inclined to give your feedback more credibility than some other sites i browse.

Thanks Bill

[feeling2damgood]

ok im thinking 5200 and 1/2 inch x 2 inch neoprene under the tank as a shock absorber. i have room around my tank so i will be filling the sides with foam. this is just my opinion i havent done my tank yet but that is what im planning. it may not be right but it seems that it would work pretty well in my boat

[gran398]

Basic premise of the Pascoe method is that the weight of the fuel eliminates the need of heavy strapping, foaming etc.

As CB has shown through photos, most galvanic corrosion (pinpoint holes, etc.) occurs along the strap lines. And of course you use rubber....but it eventually deteriorates, allowing electrolytic cross-talk.

As stated, this has been beat-up way too much...so how about a compromise, use the Pascoe method, but with plastic/nylon tank chocks on top (NO treated pine).  No foam, eliminating the chance of moisture/condensation against the tank 24/7. All about keeping the tank bone dry as best possible.

That's pretty much how am thinking for the new install. Removed a 7 year old Fl. Marine aluminum tank from a 22-2. Strapped/foamed in. Hate to report, but was unfit for re-install. Quality tank. Decent install. Pinpoint to larger holes on the bottom beneath the straps.

Just my humble half cent worth. Thanks.

Not trying to stir the pot...just keep on low simmer...

Ok...time to vote

[wingtime]

Don't foam it in!  Also no rubber should be used as a cushion.  The carbon in the rubber will cause corrosion too!  Silicone or vinyl is ok.  but anything that traps water against the tank will cause corrosion.  Foam will hold water in direct contact with the tank with no hopes of it ever drying out.  Remember water getting on the tank now and then is ok as long as it can dry!  The key is airflow.  Let's be realistic too here..  how long do you plan to own this boat?  My original tank was 30 years old with no holes...  The only corrosion pits were from a PO that placed foam rubber under the tank straps.   I don't think I'm gonna own this boat in 2041....

[Capt Matt]

No foam or straps
Have tabs welded to the tank to bolt it in
Capt Matt

[gran398]

No foam or straps
Have tabs welded to the tank to bolt it in
Capt Matt

That's about the best thinking yet. Weld tabs at the base corners, then a couple down each side.

Set up the coffin box so you have substantial nylon runners beneath the tank.

Glue it and screw it...you're done.

Add chocks at the top so guys forty years from now can appreciate quality.