1985 30' Weekender - Gas Tank Question

DKRanger22

DKRanger22

Member
Apr 28, 2009
135
Eastlake, OH
Boat Info
300 Weekender, 1985
Engines
Twin 350 Crusaders, 270 HP
My 30' Weekender is equipped with two, 75 gallon tanks. My question is to determine if the tanks support only one engine, or both. If they only support one at a time, is there some type of manual switch down below that would divert the tank to the opposite engine?

Thanks in advance.
 
They are 70's (actually, I think mine is listed as 72 gallon tanks), but I rounded up to 75. The only ones that I know of that have 100 gallon tanks are the 34's which have the 7.4's.
 
My 86 WEr came with a crossover valve that was clearly visible and mounted to a beam in the bilge. Look at the fuel lines and trace them back to the tanks.
 
I wish I had 100's on mine. The sticker on my tanks say 70 gal. I think they are a little small for two 350's with 4-bbls!

Do you know what kind of range you are getting with your tanks?

I was considering pulling mine and replacing them with bigger tanks as I will be doing the inside passage in Alaska in a few years. But it appears I would have to pull the engines and on the Stbd side my black tank is butted right up to the fuel tank.

The PO did put a 48gal tank under the floor for the genny.
 
AKBASSKING said:
I wish I had 100's on mine. The sticker on my tanks say 70 gal. I think they are a little small for two 350's with 4-bbls!

Do you know what kind of range you are getting with your tanks?
Click to expand...

My 1986 WEr would make the run from Grand Haven, MI to Frankfort which is a distance of about 135 statute miles. A 30 sedan will have a shorter range unless it carries more fuel. My WEr had Merc, 350's rated at 260HP. It was a very nice boat until the stringers rotted.
 
sbw1 said:
My 1986 WEr would make the run from Grand Haven, MI to Frankfort which is a distance of about 135 statute miles. A 30 sedan will have a shorter range unless it carries more fuel. My WEr had Merc, 350's rated at 260HP. It was a very nice boat until the stringers rotted.
Click to expand...


My Stringers are good.

135 miles huh........ I can see I will have to carry some extra drums when I make the trip...:smt009
 
That's good. Unfortunately my stringer problem showed up a few years after I sold the boat. The widespread nature of the problem was not known until owners were required by insurance companies to get surveys due to the ages of the boats. The new owner did a great job of fixing it, but I felt badly that he had to deal with the problem.
 
where did yours rot... i try to keep mine as dry as possible.. i checked last night my tanks say they are 98 gallons on the sticker on top of the tanks.. i have big blocks in my 30 so maybe they put different tanks in... you can barely get your hand between tank and manifold....
 
Rot was confined to the area of the motor mounts which were above limber holes. He pulled the engines and under the supervision of a surveyor cleaned out the bad wood and injected the stringers with epoxy and then glassed the area including the limber holes. He actually got off easy as the rot did not destroy the entire stringer. The boat is still going strong with new power and a new owner.
 
Yes. That's were it starts. Drain plug is another area to be concerned about. Moral of the story is to glass the limber holes and install dripless shaft logs. I'd also pull the fitting off the drain plug, make sure that is sound. Epoxy around the hole and then reinstall with 5200 so it does not move when you pull the plug in the fall.
 
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