Defective Fuel Regulator
#1
#2
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Dopplebocker (08-14-2020)
#3
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#4
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#5
3 bar will richen the mixture by 20%. Not a good idea as the various O2 sensors etc etc will be trying to correct the uncorrectable.
Buy this from grublogger, it includes the regulator, I know him and he is a very decent and honest guy.
https://www.ebay.co.uk/itm/Jaguar-XJ...-/124198484445
Buy this from grublogger, it includes the regulator, I know him and he is a very decent and honest guy.
https://www.ebay.co.uk/itm/Jaguar-XJ...-/124198484445
The following 2 users liked this post by Greg in France:
Dopplebocker (10-10-2020),
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#6
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Grant Francis (10-10-2020),
Greg in France (10-11-2020)
#7
I just did a search and it turns out this place in France seems to have them. I buy lots of bits for my other car from these people, and they are reliable and efficient.
https://www.oscaro.com/regulateur-de...08-29768-168-p
https://www.oscaro.com/regulateur-de...08-29768-168-p
The following 2 users liked this post by Greg in France:
Dopplebocker (10-11-2020),
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#8
#9
Does anyone have a solution to replacing the no longer available fuel pressure regulator? My 1994 6.0 needs one with part number EBC10768 which supersedes to NAB3443AA. I believe the equivalent Bosch number is 0280160534 and I believe rated at 3.0 bar.
BC10768 which supersedes to NAB3443AA
BC10768 which supersedes to NAB3443AA
#10
I have been recently looking into adjustable aftermarket FPRs, USA made, which I believe to be our best bet. They need bit of plumbing, but nothing that is hard to do. Aeromotive, Holley, Fuelabs all seem to be good makes, but any experiences anyone has of them I would like to hear about. pre facelift HE engines run at 2.5 bar (36.35 psi), but as long as the adjustment available is in rangem the pressure can be set exactly. They also have gauge ports built in, so that side of things is dead easy.
They are not that expensive 150 to 200 USD with fittings. So I would seriously consider that option.
Last edited by Greg in France; 10-23-2020 at 02:26 AM.
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Grant Francis (10-23-2020),
ralphwg (10-24-2020)
#11
Thanks as ever Greg.
I contacted Fuel labs who responded very quickly with the following:None of our equipment is a direct OEM replacement. It would require the changeover to AN style fittings (-6AN specifically). You would have to source some kind of adapter to go from that two bolt flange on the end of your rail to a male -6AN. I have no idea if such a piece exists. If you’re able to clear that hurdle, you would want to look at our part number 54501 (25-90psi) if your OEM setup is a return style system or part number 57504 )25-65psi) if this is a deadhead/returnless setup.
of our equipment is a direct OEM replacement. It
I contacted Fuel labs who responded very quickly with the following:None of our equipment is a direct OEM replacement. It would require the changeover to AN style fittings (-6AN specifically). You would have to source some kind of adapter to go from that two bolt flange on the end of your rail to a male -6AN. I have no idea if such a piece exists. If you’re able to clear that hurdle, you would want to look at our part number 54501 (25-90psi) if your OEM setup is a return style system or part number 57504 )25-65psi) if this is a deadhead/returnless setup.
of our equipment is a direct OEM replacement. It
#12
Thanks as ever Greg.
I contacted Fuel labs who responded very quickly with the following:None of our equipment is a direct OEM replacement. It would require the changeover to AN style fittings (-6AN specifically). You would have to source some kind of adapter to go from that two bolt flange on the end of your rail to a male -6AN. I have no idea if such a piece exists. If you’re able to clear that hurdle, you would want to look at our part number 54501 (25-90psi) if your OEM setup is a return style system or part number 57504 )25-65psi) if this is a deadhead/returnless setup.
of our equipment is a direct OEM replacement. It
I contacted Fuel labs who responded very quickly with the following:None of our equipment is a direct OEM replacement. It would require the changeover to AN style fittings (-6AN specifically). You would have to source some kind of adapter to go from that two bolt flange on the end of your rail to a male -6AN. I have no idea if such a piece exists. If you’re able to clear that hurdle, you would want to look at our part number 54501 (25-90psi) if your OEM setup is a return style system or part number 57504 )25-65psi) if this is a deadhead/returnless setup.
of our equipment is a direct OEM replacement. It
https://aeromotiveinc.com/product/an...apter-fitting/
can you post a photo of the OEM FPR setup on the 6 litre?
#14
Looking at the photos, am I correct in thinking that the system works as follows:
https://aeromotiveinc.com/product/co...efi-regulator/
- Fuel goes in to the rail at the far side in the second photo
- the regulator is at the end of the opposite side rail in the top photo
- your finger is on the RETURN line exiting from the regulator casting in the top photo?
- In the third and fourth photos, a clamp plate holds the regulator in position int its casting.
- The return line screws into this casting. Assuming this is correct:
- I would make a blanking plate in place of the clamping plate, doing away with the faulty OEM FPR. This would, I am assuming without looking at the actual piece, allow the fuel to exit the casting to an externally mounted FPR. Thus the rail and line would be under pressure all the way to the FPR. Then connect the FPR exit to the OEM return line, and the vac take off from the FPR to the OEM spigot on the manifold.
https://aeromotiveinc.com/product/co...efi-regulator/
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Grant Francis (10-24-2020)
#15
Bosch still makes similar FPRs for Mercedes as shown in the link. However, the ones I'm familiar with are about 3.5bar or so. I wonder if they could be made adjustable somehow? Or there may be others that are in the right range. The only difference externally that I see is the position of the vacuum ports. Obviously the size and position of the o-ring seals would also need to be checked.
Anyway, I'm going to order one for my Mercedes while they are still available!
https://www.fcpeuro.com/products/mer...tor-0280160587
Anyway, I'm going to order one for my Mercedes while they are still available!
https://www.fcpeuro.com/products/mer...tor-0280160587
The following users liked this post:
Greg in France (10-24-2020)
#16
Bosch still makes similar FPRs for Mercedes as shown in the link. However, the ones I'm familiar with are about 3.5bar or so. I wonder if they could be made adjustable somehow? Or there may be others that are in the right range. The only difference externally that I see is the position of the vacuum ports. Obviously the size and position of the o-ring seals would also need to be checked.
Anyway, I'm going to order one for my Mercedes while they are still available!
https://www.fcpeuro.com/products/mer...tor-0280160587
Anyway, I'm going to order one for my Mercedes while they are still available!
https://www.fcpeuro.com/products/mer...tor-0280160587
Loads of hits! They look identical to the 6 litre one, pretty cheap, well worth buying one to try and if it does, another for the parts drawer.
or
etc etc
Last edited by Greg in France; 10-24-2020 at 09:27 AM.
The following users liked this post:
Grant Francis (10-24-2020)
#17
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Greg in France (10-25-2020)
#18
Corrected! They are not Bosch! But there are loads to try. And this one says it is a genuine Bosch:
Last edited by Greg in France; 10-25-2020 at 01:06 AM.