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PointedThree :  Vans, Trucks, SUVs and Other Forums : G-Class : Front Runner Auxiliary fuel tank

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Front Runner Auxiliary fuel tank
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Posted 1/26/2015 10:33 AM
AlanMcR
Expert




Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
Posts: 3500
2000
RE: Front Runner Auxiliary fuel tank

thebigblue - 1/26/2015 7:02 AM The FR-tank will never fit a G400, the battery-box is in the way! Actually I think all 463´s has the battery behind the front-seats...?, If this is correct It will never fit a 463. FR has agreed to take it back.

 So it fits pre-2001 W463.  While you have the tank, see if it interferes with the transverse muffler found on most of these.

#226414 - in reply to #226413
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Posted 1/26/2015 12:04 PM
thebigblue

Date registered: Jan 2012
Location:
Vehicle(s):
500
RE: Front Runner Auxiliary fuel tank

AlanMcR - 1/26/2015 4:33 PM

thebigblue - 1/26/2015 7:02 AM The FR-tank will never fit a G400, the battery-box is in the way! Actually I think all 463´s has the battery behind the front-seats...?, If this is correct It will never fit a 463. FR has agreed to take it back.

 So it fits pre-2001 W463.  While you have the tank, see if it interferes with the transverse muffler found on most of these.



I think it does interfere a bit with my center-silencer, but I think maybe the silencer can be cut. Sorry I can´t verify this, I´m out of the shop for now.
But the bigger issue is that the bracket with the u-bolt wont be fitted, the heat-shield above the silencer interferes.
#226415 - in reply to #226414
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Posted 1/26/2015 12:30 PM
AlanMcR
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Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
Posts: 3500
2000
RE: Front Runner Auxiliary fuel tank

Good to know.  There is an MB factory part that replaces the center silencer with a straight pipe.  It is what my G came with.  That ought to let the tank fit.  In my case I rebuilt the whole exhaust to keep everything on the right side.  That left room for the extended range tank and a compressor where the silencer used to be.
#226418 - in reply to #226415
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Posted 1/26/2015 2:37 PM
thebigblue

Date registered: Jan 2012
Location:
Vehicle(s):
500
RE: Front Runner Auxiliary fuel tank

AlanMcR - 1/26/2015 6:30 PM

Good to know.  There is an MB factory part that replaces the center silencer with a straight pipe.  It is what my G came with.  That ought to let the tank fit.  In my case I rebuilt the whole exhaust to keep everything on the right side.  That left room for the extended range tank and a compressor where the silencer used to be.


Mine being a V8, the center silencer can´t be replaced by a straight pipe as it serves as a joining point for the two exhaust pipes, one in each side. Hence it might also be a bigger...
#226421 - in reply to #226418
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Posted 1/26/2015 2:46 PM
AlanMcR
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Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
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RE: Front Runner Auxiliary fuel tank

thebigblue - 1/26/2015 11:37 AM
AlanMcR - 1/26/2015 6:30 PM Good to know.  There is an MB factory part that replaces the center silencer with a straight pipe.  It is what my G came with.  That ought to let the tank fit.  In my case I rebuilt the whole exhaust to keep everything on the right side.  That left room for the extended range tank and a compressor where the silencer used to be.
Mine being a V8, the center silencer can´t be replaced by a straight pipe as it serves as a joining point for the two exhaust pipes, one in each side. Hence it might also be a bigger...

The pipe A4634900021 replaces A4634904701.  It takes up *much* less space.  Not having been under a G400, I can't say what you'll find there.

 

#226422 - in reply to #226421
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Posted 1/26/2015 5:00 PM
thebigblue

Date registered: Jan 2012
Location:
Vehicle(s):
500
RE: Front Runner Auxiliary fuel tank

Super, so it seems we have established that the FR-tank might fit on a non V8 pre 2001 463 G with the silencer replaced by the pipe you have suggested
#226424 - in reply to #226098
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Posted 1/26/2015 7:34 PM
AlanMcR
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Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
Posts: 3500
2000
RE: Front Runner Auxiliary fuel tank

thebigblue - 1/26/2015 2:00 PM Super, so it seems we have established that the FR-tank might fit on a non V8 pre 2001 463 G with the silencer replaced by the pipe you have suggested :)

Yes! Happy days are here again!

Actually, I'll bet it fits quite a few of the pre-2001 W463s and probably a lot of the W461s.  The criteria appear to be

  • No footwell battery
  • No center muffler just ahead of the muffler
#226430 - in reply to #226424
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Posted 1/27/2015 12:50 PM
Otiswesty
Administrator




Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3002
2000
Re: Front Runner Auxiliary fuel tank

This eliminates the pre-muffler on the 2002+
http://g-wagenaccessories.com/products/Exhaust.htm
The battery box issue would remain.
Nice to know it would fit an earlier petrol G463 with the center muffler deleted. Confirmation of this would be good information to have here.
My G500 currently has the complete stock exhaust including the center muffler.
#226439 - in reply to #226098
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Posted 1/27/2015 1:20 PM
thebigblue

Date registered: Jan 2012
Location:
Vehicle(s):
500
RE: Front Runner Auxiliary fuel tank

I´m 99% sure that what Allan suggest, replacing the center silencer with the MB pipe, will be the cure for the early 463´s, - see pictures in the FR install manual.

There´s no need to delete the two pre-silencers, actually removing these will leave your truck completely without any silencer, so your link to this kit for the 2002+ 463 trucks at Karl´s shop ads confusion to the correct solution, the battery-box will still interferer

Edited by thebigblue 1/27/2015 1:23 PM
#226441 - in reply to #226098
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Posted 1/27/2015 1:22 PM
Roly
Elite Veteran




Date registered: Apr 2006
Location: Australia
Vehicle(s): 1999 G500
Posts: 661
500
Re: Front Runner Auxiliary fuel tank

If you deleted the central muffler with the pipe Alan identified it should work. Mine has that exhaust modification. Remove the heat shield too.
On the later V8s you need substantial alterations to form a twin system AMG style with increased noise levels.
#226442 - in reply to #226439
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Posted 1/27/2015 1:30 PM
thebigblue

Date registered: Jan 2012
Location:
Vehicle(s):
500
Re: Front Runner Auxiliary fuel tank

Roly - 1/27/2015 7:22 PM

If you deleted the central muffler with the pipe Alan identified it should work. Mine has that exhaust modification. Remove the heat shield too.
On the later V8s you need substantial alterations to form a twin system AMG style with increased noise levels.


Exactly - I´m currently looking into any modifications to the FR-tank to make it fit my 2005 V8 G400 CDi, It might loose some 5 liters in volume due to battery-box cut-out, they might be reclaimable by making the tank a bit longer though, I will also need to make some space for the center-silencer, this a small fix I believe.
#226443 - in reply to #226442
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Posted 1/27/2015 4:16 PM
Roly
Elite Veteran




Date registered: Apr 2006
Location: Australia
Vehicle(s): 1999 G500
Posts: 661
500
Re: Front Runner Auxiliary fuel tank

Isn't it easier to have a custom fabricated tank and leave the exhaust, heat shield and battery box standard.
#226445 - in reply to #226443
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Posted 5/28/2022 9:15 PM
Otiswesty
Administrator




Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3002
2000
RE: Front Runner Auxiliary fuel tank

I am currently looking for a premade auxiliary tank fr my 1999 G500. Front Runner no longer has a valid link for their aux tank. It may be the Merfcedes tank for the early G-pro 461 will work, but without a title I cannot order one in USA.

Any tips would be appreciated.

I reached out to ORC and they will not sell me an under floor tank. They will only sell it as a package with installation in their own workshop, no exceptions.

If any one has a contact in Germany or Europe that could get one of their tanks for me, that would be a good solution as well.
#243619 - in reply to #226098
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Posted 5/28/2022 9:26 PM
Otiswesty
Administrator




Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3002
2000
RE: Front Runner Auxiliary fuel tank

Here are the G models where the tank is factory fitted.




(AuxTank.jpg)



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Attachments AuxTank.jpg (75KB - 0 downloads)
#243620 - in reply to #226098
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