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 Drop tank or trap door

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sj95rmw



Posts : 45
Join date : 2014-01-08

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PostSubject: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 12:11 am

There's a great sticky here on dropping the tank to replace the fuel pump. I also noticed on the Net that many
people suggest cutting a trap door for a faster fuel pump job.

Opinions on which method is better ?
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sherlock9c1



Posts : 2113
Join date : 2009-05-28
Location : Huntsville, AL

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 2:06 am

The only benefit to cutting a trap door is if you do a lot of road trips and want to be able to replace the pump while on the side of the road.

Otherwise I would not bother. You will spend more time cutting the floor and then sealing it back up then you will just dropping the tank.
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Fred Kiehl

Fred Kiehl

Posts : 5199
Join date : 2009-11-13
Age : 70
Location : Largo, FL 33774

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 9:07 am

If you plan on keeping the car for a long time, and suspect that you might have to replace the pump more than twice, making the mod the first time is cost/time effective. Once you have replaced the pump a few times, it is a less effective tradeoff in time and money. You have to get the sheet metal part from a donor car, so availability of parts is another consideration.
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silverfox103
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silverfox103

Posts : 2974
Join date : 2008-11-05
Age : 70
Location : Littleton, NH & St. Simons, GA

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 10:06 am

There is a write up here someplace that I did, don't have time to look it up now, but will later. Someone may drop in with it.

Tom
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sj95rmw



Posts : 45
Join date : 2014-01-08

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 11:04 am

I plan on using a quality wallbro pump & I doubt I'll put more than 100K miles on it
so probably 1st & last time.
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silverfox103
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silverfox103

Posts : 2974
Join date : 2008-11-05
Age : 70
Location : Littleton, NH & St. Simons, GA

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 5:05 pm

Found it: [You must be registered and logged in to see this link.]

Tom
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sj95rmw



Posts : 45
Join date : 2014-01-08

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeMon Jan 27, 2014 10:23 pm

Good pictures, great write up. Another way to cut is to put a stop collar on a drill bit so the drill
can't penetrate too deep & just drill a series of holes. I might drop the tank anyway just to
check on all the wiring & tubing. Make sure they're in good shape as well.
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Fred Kiehl

Fred Kiehl

Posts : 5199
Join date : 2009-11-13
Age : 70
Location : Largo, FL 33774

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeTue Jan 28, 2014 1:04 am

If I were to cut the floor of my wagon, I would smooth out the shape of the opening. I would also put a set of connectors where I could disconnect the sender unit at the opening. The wiring is trapped between the tank and body so you would not have to fish it through.
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Bull

Bull

Posts : 164
Join date : 2013-02-09
Location : MA

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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitimeTue Jan 28, 2014 1:44 am

Dropping the tanks isn't all that bad, and it does give you the opportunity to clean and inspect some stuff.
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PostSubject: Re: Drop tank or trap door   Drop tank or trap door Icon_minitime

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