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Can I use my old 2 strk tank for my new 4 strk?

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Paul
1st Mate

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57 Posts

Initially Posted - 04/11/2006 : 20:38:56

I'm having trouble finding a tank larger than the 3 gal that came with my new 4 stroke Tohatsu that will fit aboard my C25. I still have the 6 gallon tank from the 2 stroke I replaced.

Would I be risking the long-term health of my new motor if I emptied the old 6 gallon tank and used it with the new 4 stroke?

Alternative question, can anyone tell me who makes the largest portable tank to fit our 25s?

Edited by - on

Rich G
Navigator

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226 Posts

Response Posted - 04/11/2006 : 21:31:08

Is this what you're looking for?

Tohatsu / Nissan Fuel Tank
6 Gallon Plastic
Nissan Branded

Item #: 303729
Manufacturer: TOHATSU/NISSAN
Model #: 99998-FT26M
Shipping Weight: 6.75 Lbs.

Our Price: $60.29

http://www.defender.com/product.jsp?path=-1|311|302335|7364&id=569388

I bought two 6 gallon tanks last year, one for the boat and one for the dinghy. 6 Gallon tank fits perfectly into the fuel locker in the cockpit, AND under the aft dinette bench.

I got mine at West Marine. Then bought the appropriate connectors and fuel line.

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Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 04/11/2006 : 21:43:34

I doubt you'd be risking anything. If you drain the entire tank there isn't much left in terms of the two cycle oil laying around in the bottom of the tank. It might burn a bit rich for a while, but its not going to kill anything

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tinob
Master Marine Consultant

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USA
1883 Posts

Response Posted - 04/12/2006 : 13:46:22

Paul the only trouble that I had doing what you want to do is finding the necessary fuel hose end fittings. The tank is generic. You could even burn the two stroke fuel if need be. But why bother, use it for weedwackers, chain saws, etc.

Val on the hatd DAGNABIT # 3936 Patchogue, N.Y.

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djn
Master Marine Consultant

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USA
1561 Posts

Response Posted - 04/12/2006 : 14:10:10

Hi Paul, when I was a lumber jack in the Mt. Hood national forrest, we ran out of gas in the mountains all the time and dumped 2 cycle chain saw gas in to get us home. I ran a Ford crew cab for 200K miles and did that at least once a month. When we tore down the engine, it was one of the most evenly worn out motors I'd ever see. It still ran, but was getting tiered. Cheers.

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Leon Sisson
Master Marine Consultant

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USA
1893 Posts

Response Posted - 04/12/2006 : 18:56:49

A little bit (small concentration) of 2-stroke oil won't hurt a 4-stroke boat motor a bit. I'd be more concerned about accumulated crud in the bottom of the old tank. As for the largest portable tank which will fit your C-25, it depends on what year your boat is, and whether you're talking about having the tank out on the cockpit sole, or putting the tank inside the original fuel locker. Do you have one or two cockpit locker hatches on the port side?

-- Leon Sisson

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Rich G
Navigator

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226 Posts

Response Posted - 04/13/2006 : 07:10:33

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by djn
 Hi Paul, when I was a lumber jack in the Mt. Hood national forrest, we ran out of gas in the mountains all the time and dumped 2 cycle chain saw gas in to get us home. I ran a Ford crew cab for 200K miles and did that at least once a month.<hr height="1" noshade id="quote"></blockquote id="quote">

You ran out of gas once a month? Jees! I thought that was the kind of thing you were supposed to do ONCE PERIOD, and learn your lesson. I suppose it's a different story out in the backwoods of Oregon.

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djn
Master Marine Consultant

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USA
1561 Posts

Response Posted - 04/13/2006 : 07:26:44

We always had 100 gals of mixed gas in the back for the chain saws so if we were running late and were low on gas, we would just push on through.

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Paul
1st Mate

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57 Posts

Response Posted - 04/17/2006 : 21:20:37

Mine is an '83, so I'm trying to fit the most tank I can into the designated tank space at the stern port corner of the cockpit.

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RichardG
Admiral

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USA
990 Posts

Response Posted - 04/17/2006 : 23:46:11

Paul,

The Tempo 9Gas just fits in there.

http://www.catalina-capri-25s.org/forum/topic.asp?ARCHIVE=true& TOPIC_ID=3545& SearchTerms=tempo,9

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Paul
1st Mate

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57 Posts

Response Posted - 04/18/2006 : 09:35:56

That must be a tight fit and/or I mismeasured.

I narrowest width of the compartment at 13.5" on my 83. Dimensions I found for the Tempo 7.5 show that it's 14.25" wide.

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.