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  #1  
Old March 8th, 2015, 11:45 AM
stuthegeordie
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stu
1986/110 petrol 2.5
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fuel pump

Hi all

So I put a new fuel tank on my 110 2.5 petrol, put in back together now it wont start. I dont hear the fuel pump on II. Any ideas on what it could be, Im hoping it can be diagnosed before dropping the tank again?



Cheers in advance
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  #2  
Old March 8th, 2015, 11:58 AM
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Chris
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1: No fuel
2: Fuse
3: blocked fuel filter
4: Does it fire when you use cold start?
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  #3  
Old March 8th, 2015, 12:03 PM
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Robert Davis
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Where is your fuel pump located?
The 2.5 110 often has a small fuel filter in a housing located sometimes at the lower edge of the outside of the bulkhead and other times along the frame rail.
Usually a small round metal housing about 2.5 inches deep with a radius of about 2.25 inches.
These contain a small fuel filter element that often gets clogged and causes the electric fuel pump to fail.
Because they are out of sight most owners don't know they exist.
Find it and remove the whole assembly and install an inline filter just before the carb.
Also do the usual trouble shooting to make sure the fuel pump has power.
I was not aware that the 2.5 had a fuel pump inside the tank.
You should be able to buy a LOW PRESSURE 12V pump and mount it on the frame rail.
It has to produce no more than 2.5 pounds of pressure.
More than that will flood that shitty weber 34 carb.
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Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
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  #4  
Old March 8th, 2015, 12:14 PM
stuthegeordie
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stu
1986/110 petrol 2.5
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Thanks for that.

Yes fuel pump inside the tank.

I m a little low on gas, about 5 litres, but Im relectant to put more in incase I have to drop the tank again. I should hear the fuel tank humming regardless of it not having enough gas right? Not sure how to check if the pump is getting power its a sealed unit?

Cheers again
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  #5  
Old March 8th, 2015, 12:27 PM
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rdavisinva
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Robert Davis
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Quote:
Originally Posted by stuthegeordie View Post
Thanks for that.

Yes fuel pump inside the tank.

I m a little low on gas, about 5 litres, but Im relectant to put more in incase I have to drop the tank again. I should hear the fuel tank humming regardless of it not having enough gas right? Not sure how to check if the pump is getting power its a sealed unit?

Cheers again
Again, have never heard of a 2.5 fuel pump inside the tank.
We have both a 1986 & 1988 both with 2.5 Petrol engines here.
I'll check on fuel pump location, but anyone would be much happier with the fuel pump outside of the tank to cut down on the hassle of fuel tank removal to replace, trouble shoot, or service the fuel pump.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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  #6  
Old March 8th, 2015, 12:52 PM
stuthegeordie
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stu
1986/110 petrol 2.5
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I assume that because Im getting power to the fuel gauge Im also getting it to the pump as its off the same harness
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  #7  
Old March 8th, 2015, 01:12 PM
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Robert Davis
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Quote:
Originally Posted by stuthegeordie View Post
I assume that because Im getting power to the fuel gauge Im also getting it to the pump as its off the same harness
Not necessarily.
You need a good ground and (+) 12V.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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  #8  
Old March 8th, 2015, 01:27 PM
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The gauge and the pump are on different circuits. Silly question but did you connect a power to the pump? Robert is correct in that all of those vintage petrol motors had the fuel pump mounted on the frame rail forward of the RR wheel well. Could some previous owner installed a newer tank prior to your replacing the tank? That is if the old tank also had the fuel pump in it.
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  #9  
Old March 8th, 2015, 06:04 PM
stuthegeordie
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stu
1986/110 petrol 2.5
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The replacement tank was bought using the cars VIN and it matches the original so I guess it's the correct one for it.
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  #10  
Old March 15th, 2015, 07:11 PM
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Robert Davis
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Today was able to get the 1988 110 with a 2.5 Petrol up on the lift and sure enough, could not locate the fuel pump. It was not on the frame rail, so Stu must be correct that it is in the tank.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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  #11  
Old March 19th, 2015, 02:02 PM
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Robert Davis
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Here is the fuel tank and fuel pump from a 110 Parts List.
Note the petrol fuel pump is located inside the fuel tank.

If your pump is not running and you have (+) power to the lead, then you need to run a ground wire to the fuel tank.
If thereis no (+) current, you need to troubleshoot the circuit from the ignition to the fuel pump.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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  #12  
Old March 19th, 2015, 02:17 PM
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Mike
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Robert, I have worked both on a 3.5 and 2.25 petrol 110's and they both had the pump on the rail. I guess they change it out depending upon the year. The trucks I worked on were a 83 and a 85.
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  #13  
Old March 24th, 2015, 04:12 PM
stuthegeordie
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stu
1986/110 petrol 2.5
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Sorted thanks for the replies.

Dodgy ground.

On the pump in the tank discussion, I was told that the 1986 was a change over year for the tank design by the tank supplier.
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  #14  
Old March 25th, 2015, 04:56 PM
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belgian
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Maxim
1995 RRC SWB
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Quote:
Originally Posted by rdavisinva View Post
Where is your fuel pump located?
The 2.5 110 often has a small fuel filter in a housing located sometimes at the lower edge of the outside of the bulkhead and other times along the frame rail.
Usually a small round metal housing about 2.5 inches deep with a radius of about 2.25 inches.
These contain a small fuel filter element that often gets clogged and causes the electric fuel pump to fail.

Because they are out of sight most owners don't know they exist.
Find it and remove the whole assembly and install an inline filter just before the carb.
Also do the usual trouble shooting to make sure the fuel pump has power.
I was not aware that the 2.5 had a fuel pump inside the tank.
You should be able to buy a LOW PRESSURE 12V pump and mount it on the frame rail.
It has to produce no more than 2.5 pounds of pressure.
More than that will flood that shitty weber 34 carb.
Do you have a picture of this (110 is parked about 4 hours away so I'm not sure what to get) and the part number? Maybe that's what causing the fuel starvation on my 110. Thanks!
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  #15  
Old March 25th, 2015, 05:17 PM
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rdavisinva
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Robert Davis
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Quote:
Originally Posted by belgian View Post
Do you have a picture of this (110 is parked about 4 hours away so I'm not sure what to get) and the part number? Maybe that's what causing the fuel starvation on my 110. Thanks!
It is shown in the attached picture as item 11.
It is located around the lower right side of the bulkhead.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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  #16  
Old March 25th, 2015, 05:23 PM
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rdavisinva
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Robert Davis
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Quote:
Originally Posted by Capt Milks View Post
Robert, I have worked both on a 3.5 and 2.25 petrol 110's and they both had the pump on the rail. I guess they change it out depending upon the year. The trucks I worked on were a 83 and a 85.
It was my experience that the fuel pump was located on the frame as well.
Stu claimed his fuel pump was in the tank, and...
Sure enough, that's where the parts list shows it located.
This must have started very late 1986 or 1987 on-wards according to the parts list page in post 11.
I put our 1988 petrol 110 up on the lift and there is no pump to be seen on the frame... it's in the tank.
Stu was correct from the beginning.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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  #17  
Old March 25th, 2015, 06:01 PM
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Todd Kendrick
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Need a brake line for rear PS NAS D90

I am looking for a new/barely used brake line for the rear passenger side. Out wheeling in the snow a couple weeks ago and bent it like coat hanger; see attached. Good news is crimped line so bad no fluid has leaked out. Anyone made there own brake lines? My concern is the odd fittings and how to overcome. Search was not my friend on this subject.......
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  #18  
Old March 25th, 2015, 06:45 PM
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Robert Davis
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Quote:
Originally Posted by taoseno View Post
I am looking for a new/barely used brake line for the rear passenger side. Out wheeling in the snow a couple weeks ago and bent it like coat hanger; see attached. Good news is crimped line so bad no fluid has leaked out. Anyone made there own brake lines? My concern is the odd fittings and how to overcome. Search was not my friend on this subject.......
Todd:
You stepped into a fuel pump thread, so your post is misplaced.
I use the cupro-nickle line, but have an expensive mechanical double flaring brake tool I bought in England 20 years ago or longer.
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RDavisinVA

Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
Reply With Quote
  #19  
Old March 25th, 2015, 06:51 PM
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Sorry I just realized I posted in the wrong section; could the moderator please move to the "wanted" section? Thanks
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  #20  
Old March 25th, 2015, 09:21 PM
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Quote:
Originally Posted by taoseno View Post
Sorry I just realized I posted in the wrong section; could the moderator please move to the "wanted" section? Thanks
done
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