Life expectancy of FJ62/3FE fuel pump

[Spook50]

At 302K miles, I still have the factory fuel pump in my 62. It's never given me any problems and not once have I ever run it dry of fuel, but I'm wondering what the life expectancy is for these pumps? I seem to remember someone saying they're a diaphragm style pump and as long as they're never run dry they can last a lifetime. Is this true? I need to drop my tank soon and replace the rubber filler neck so I was considering replacing the pump while it's down just to have it taken care of for the sake of piece of mind.

 

[cruisermatt]

If it lasted this long then it should be good forever! Don't let the magic out by replacing it.

I've never see one die. My original still worked great when I removed it for a higher powered one and now it's in my trail spare box, but I doubt I'll ever need it, I have an OEM 80 pump now.

 

[Spook50]

If it lasted this long then it should be good forever! Don't let the magic out by replacing it.

I've never see one die. My original still worked great when I removed it for a higher powered one and now it's in my trail spare box, but I doubt I'll ever need it, I have an OEM 80 pump now.

Honestly I wish there was a reliable method to convert to an external pump so that should it ever have to be replaced (ie: trail repair) it would be easy to access. I can understand the logic of an in tank pump, but at one point the necessity of maintenance should trump the idea of making a part last a little longer. I'd rather change out an easy to access part a few times over the vehicle's life than change out a part once that means I have to drain and drop the entire fuel tank to do it.

 

[cruisermatt]

But draining and dropping the tank only takes 20-25 minutes. Have you ever done it? I have, a few times. It's not the big deal everyone makes it out to be. And the in-tank pumps last forever. I think I've heard of one that was actually bad on this forum.

 

[Spook50]

It's not so much the chore of draining and dropping, it's seeing that liquid money spill out and somehow NEVER MAKE IT INTO THE CATCH CAN that makes me sniffle and cry....

I see what you're saying though. I think if a diaphragm pump is always kept lubricated and never run dry, it'll pretty much last a lifetime. 31 years and 302K miles though still gives me pause....

 

[fjc-man]

Yaaa ,why don’t you go ahead and replace it at your convenience instead of when and where it decides to s*** the bed? Then forget about it.

 

[cruisermatt]

It's not so much the chore of draining and dropping, it's seeing that liquid money spill out and somehow NEVER MAKE IT INTO THE CATCH CAN that makes me sniffle and cry....

I see what you're saying though. I think if a diaphragm pump is always kept lubricated and never run dry, it'll pretty much last a lifetime. 31 years and 302K miles though still gives me pause....

Toyota literally could not have made the gas drain easier to do spill free on these trucks

 

[tmxmotorsports]

@cruisermatt is correct its not hard and can drain it into a fuel jug no problem i use a ratchet strap to help with reinstalling it make sure the tank straps are not over the ratchet strap derp...

 

[Spook50]

Toyota literally could not have made the gas drain easier to do spill free on these trucks

A lip to keep it from creeping all over the bottom of the tank and falling everywhere but my bucket would be nice....

 

[OSS]

at this point, (30 years) nothing original on the cruiser can be trusted. Sure it might last another 10 years or it could go belly up this afternoon. Preventative Maintenance is the name of the game for these relics if you don't want to be caught out with a breakdown

 

[Spook50]

at this point, (30 years) nothing original on the cruiser can be trusted. Sure it might last another 10 years or it could go belly up this afternoon. Preventative Maintenance is the name of the game for these relics if you don't want to be caught out with a breakdown

Exactly my train of thought. Going to go ahead and do it when I drop the tank to replace the filler neck and be done with it. Just need to make sure I order the right pump. IIRC @cruiserdan mentioned years ago that there are two different FJ62 in-tank pumps and they're not cross compatible....

 

[TexasBlue]

Exactly my train of thought. Going to go ahead and do it when I drop the tank to replace the filler neck and be done with it. Just need to make sure I order the right pump. IIRC @cruiserdan mentioned years ago that there are two different FJ62 in-tank pumps and they're not cross compatible....

If I had to remove any original OEM part, than any old stuff, especially of it's a wearable item, gets replaced with OEM or JDM parts. I have done this on many repairs. When I do the oil pan gasket. I'm thinking of oil pump replacement..
I do not know how old the one in there is. And rather have oil pressure than 0 pressure.

 

[Devils Paw 80]

Exactly my train of thought. Going to go ahead and do it when I drop the tank to replace the filler neck and be done with it. Just need to make sure I order the right pump. IIRC @cruiserdan mentioned years ago that there are two different FJ62 in-tank pumps and they're not cross compatible....

The fuel pump bracket is no longer available new, in case you need it. Mine was in terrible shape, actually weeping gas from the excessive corrosion, when my pump got replaced. No, pump hadn't failed but I have heard of these failing for others so it made sense for me to replace with bracket removal. Some folks have actually cut a hole in cargo floor for easier access. In fact, that's what I ended up doing because the damn thing leaked when topped off after reinstalling with new pump. Dropped again, checked gasket, upgraded screws, etc. and it still leaked. It took an overhead view to see that the very expensive, used bracket from Cruiser parts.net was flawed and leaking from the hard line. Only with a full tank though. I just patched with JB weld and it's been OK since.

FYI, don't try siphoning tank as it will take forever due to baffles. Run down to less than 5 gallons and then drain into bucket works well.

 

[Randy88FJ62]

My fuel pump went out around 290k.

 

[tmxmotorsports]

Don't use a 5gallon bucket us a gas can and a transmission funnel

 

[Spook50]

The fuel pump bracket is no longer available new, in case you need it. Mine was in terrible shape, actually weeping gas from the excessive corrosion, when my pump got replaced. No, pump hadn't failed but I have heard of these failing for others so it made sense for me to replace with bracket removal. Some folks have actually cut a hole in cargo floor for easier access. In fact, that's what I ended up doing because the damn thing leaked when topped off after reinstalling with new pump. Dropped again, checked gasket, upgraded screws, etc. and it still leaked. It took an overhead view to see that the very expensive, used bracket from Cruiser parts.net was flawed and leaking from the hard line. Only with a full tank though. I just patched with JB weld and it's been OK since.

FYI, don't try siphoning tank as it will take forever due to baffles. Run down to less than 5 gallons and then drain into bucket works well.

Depending on how high of pressure they have to hold, a Tig weld might make an acceptable repair, as long as you can purge some argon through the inside of the tube. Hoping mine is just fine, but I guess I'll find out when I pull the tank. Is it the bracket that changed during FJ62 production, or did the pump change too?

 

[Devils Paw 80]

Is it the bracket that changed during FJ62 production, or did the pump change too?

Could be wrong but I don't believe either one did.

 

[tmxmotorsports]

Could be wrong but I don't believe either one did.

There is also a remedy for the nla fuel pump module

 

[Spook50]

There is also a remedy for the nla fuel pump module

You have my attention.....

 

[FJ60Cam]

There is also a remedy for the nla fuel pump module

You have my attention.....

Shameless plug - I’m a Tanks Inc dealer and sell fuel pump modules that would drop right in with a simple adapter ring.

GPA Series In Tank Fuel Pump Module — MOSLEY MOTORS

GPA Series Pump Modules are ideal for retrofitting an in-tank pump into most fuel tanks. Choose the TBI model for GM TBI engines or 2F TBI Conversions. For Holley Sniper 2F applications, chose the 190 mph model. For LS conversions and Holley Sniper Fuel Injection systems, the 255 liter per hour pump

www.mosleymotors.com

I can also get the module without a pump, if you want to use a Denso pump.

If I’m dropping a tank for an in-tank fuel pump, I’m also going to install an access panel in the floor so I don’t have to do it again.