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fuel filter
#1
  This topic is about my 1979 MG Midget 1500
Richie Ruggs Avatar
Richie Ruggs Richard Ruggirello
BAYONNE, NJ, USA   USA
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1979 MG Midget 1500
Where is the fuel filter on my 79 Midget? I have the engine out for another issue but can't find the filter, not even in the manual.

rick@kensmarine.net

Cheers
Rick

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Re: fuel filter
#2
wportre Avatar
wportre William Porter
London, UK   GBR
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1970 MG Midget MkIII
1972 MG Midget
1972 MG Midget
I will get shot down in flames if wrong, but I believe your fuel filter is currently in a parts catalog. Fit it before the pump and DEFINITELY not in the engine bay

OT but a neighbor’s A had a huge filter right by the engine, fuel lines looping all around and in need of rerouting, and a boiling problem. Fun being ignored, isn’t it.


Mk3 Midget 1970/1 UK spec. 1275 GAN5996*** and 2RWA wrecks "The Spice Girls" - "2 become 1"



Edited 1 time(s). Last edit at 2024-04-16 10:27 AM by wportre.

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Re: fuel filter
#3
refisk Rick Fisk
Frankenmuth, MI, USA   USA
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I don't believe the factory fitted a fuel filter. If you find one it was added by a previous owner. On my cars I install a filter just before the carb(s).

In reply to # 4785768 by Richie Ruggs Where is the fuel filter on my 79 Midget? I have the engine out for another issue but can't find the filter, not even in the manual.

rick@kensmarine.net

Cheers
Rick

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Re: fuel filter
#4
bleteaches6 Avatar
bleteaches6 Silver Member Lee Orphan
Bonney Lake, WA, USA   USA
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1956 MG MGA 1500
1974 MG MGB GT
1974 MG MGB GT
1979 MG MGB Limited Edition (LE)    & more
You fit the filter after the pump, not before

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Re: fuel filter
#5
Mtn Sprite Avatar
Mtn Sprite Layne M
Santa Cruz, CA, USA   USA
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1969 Austin-Healey Sprite
I have a metal in line filter before the carbs. WIX or Purolator. To left of carbs.

I have a points style SU pump and some say to install in front of pump too. I don’t have one there.

There is a filter screen on the pickup I think, if it’s still there. Cleaned my tank good about 5 years ago and I think it was still there.


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Re: fuel filter
#6
BigRedMidget Avatar
BigRedMidget Isaac H
Lancaster, PA, USA   USA
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1979 MG Midget 1500
As others have correctly stated, there was no fuel filter in the 1500. There is a small, insignificant screen in the fuel tank, but it's not a filter.

Install a plastic or metal one in front of carb as others suggested. I like plastic because you can sharpie a date and mileage directly on it. Don't install glass, they tend to burst into flames.

Good luck!

In reply to # 4785768 by Richie Ruggs Where is the fuel filter on my 79 Midget? I have the engine out for another issue but can't find the filter, not even in the manual.

rick@kensmarine.net

Cheers
Rick


79' Midget with a Weber Carb and more beer than gas.


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Re: fuel filter
#7
Midget 74 Avatar
Midget 74 Jim Ward
San Jose, CA, USA   USA
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1974 MG Midget
On my '74, I have a pre-filter between the fuel tank and electric fuel pump, and then one again in the engine compartment prior to the carbs. May be over-kill, but no harm either.
Jim


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Re: fuel filter
#8
Kerr Avatar
Kerr Platinum Member Norm Kerr
Ann Arbor, MI, USA   USA
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1974 MG Midget
In reply to # 4785890 by Midget 74 On my '74, I have a pre-filter between the fuel tank and electric fuel pump, and then one again in the engine compartment prior to the carbs. May be over-kill, but no harm either.
Jim

If you use an SU pump (or similar), and if the filter before it were to clog, that will quickly burn up the pump. This is why the advice is to only install one after the pump (the pump can digest large particles so there's no need to put one before).


If your fuel tank is badly corroded inside a filter is just a bandaid until it rusts through and gets replaced then there's hardly a need for a filter at all.

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Re: fuel filter
#9
BigRedMidget Avatar
BigRedMidget Isaac H
Lancaster, PA, USA   USA
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1979 MG Midget 1500
Ha! I have the same, but I also have 2 pumps in-line run off of a 3-way switch, each with its own pre-filter.
The picture I posted, that pump was replaced since I took it.

Oh yah, definitely overkill here, but nice to have a backup at the flip of a switch.

In reply to # 4785890 by Midget 74 On my '74, I have a pre-filter between the fuel tank and electric fuel pump, and then one again in the engine compartment prior to the carbs. May be over-kill, but no harm either.
Jim


79' Midget with a Weber Carb and more beer than gas.



Edited 1 time(s). Last edit at 2024-04-16 06:04 PM by BigRedMidget.

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Re: fuel filter
#10
BigRedMidget Avatar
BigRedMidget Isaac H
Lancaster, PA, USA   USA
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1979 MG Midget 1500
I don't disagree with you Norm, but the 2 pumps I bought don't have the direct to hose connection, they require the screw-in filter.

In reply to # 4785947 by Kerr
In reply to # 4785890 by Midget 74 On my '74, I have a pre-filter between the fuel tank and electric fuel pump, and then one again in the engine compartment prior to the carbs. May be over-kill, but no harm either.
Jim

If you use an SU pump (or similar), and if the filter before it were to clog, that will quickly burn up the pump. This is why the advice is to only install one after the pump (the pump can digest large particles so there's no need to put one before).


If your fuel tank is badly corroded inside a filter is just a bandaid until it rusts through and gets replaced then there's hardly a need for a filter at all.


79' Midget with a Weber Carb and more beer than gas.

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Re: fuel filter
#11
refisk Rick Fisk
Frankenmuth, MI, USA   USA
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Your pumps are not SU's.

In reply to # 4785975 by BigRedMidget I don't disagree with you Norm, but the 2 pumps I bought don't have the direct to hose connection, they require the screw-in filter.

In reply to # 4785947 by Kerr
In reply to # 4785890 by Midget 74 On my '74, I have a pre-filter between the fuel tank and electric fuel pump, and then one again in the engine compartment prior to the carbs. May be over-kill, but no harm either.
Jim

If you use an SU pump (or similar), and if the filter before it were to clog, that will quickly burn up the pump. This is why the advice is to only install one after the pump (the pump can digest large particles so there's no need to put one before).


If your fuel tank is badly corroded inside a filter is just a bandaid until it rusts through and gets replaced then there's hardly a need for a filter at all.

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Re: fuel filter
#12
BigRedMidget Avatar
BigRedMidget Isaac H
Lancaster, PA, USA   USA
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1979 MG Midget 1500
Good call. I would think the principle would be the same, it might not be "quick" tho

In reply to # 4785978 by refisk Your pumps are not SU's.

In reply to # 4785975 by BigRedMidget I don't disagree with you Norm, but the 2 pumps I bought don't have the direct to hose connection, they require the screw-in filter.

In reply to # 4785947 by Kerr
In reply to # 4785890 by Midget 74 On my '74, I have a pre-filter between the fuel tank and electric fuel pump, and then one again in the engine compartment prior to the carbs. May be over-kill, but no harm either.
Jim

If you use an SU pump (or similar), and if the filter before it were to clog, that will quickly burn up the pump. This is why the advice is to only install one after the pump (the pump can digest large particles so there's no need to put one before).


If your fuel tank is badly corroded inside a filter is just a bandaid until it rusts through and gets replaced then there's hardly a need for a filter at all.


79' Midget with a Weber Carb and more beer than gas.

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Re: fuel filter
#13
1974MGMidget Avatar
1974MGMidget Gold Member Jack Orkin
Grayson, GA, USA   USA
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1974 MG Midget MkIII
In reply to # 4785975 by BigRedMidget I don't disagree with you Norm, but the 2 pumps I bought don't have the direct to hose connection, they require the screw-in filter.

They require a screw-in filter? Why couldn't you just use a screw-in nipple for the fuel hose?

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Re: fuel filter
#14
BigRedMidget Avatar
BigRedMidget Isaac H
Lancaster, PA, USA   USA
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1979 MG Midget 1500
Cause I'm lazy

In reply to # 4785993 by 1974MGMidget
In reply to # 4785975 by BigRedMidget I don't disagree with you Norm, but the 2 pumps I bought don't have the direct to hose connection, they require the screw-in filter.

They require a screw-in filter? Why couldn't you just use a screw-in nipple for the fuel hose?


79' Midget with a Weber Carb and more beer than gas.

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Re: fuel filter
#15
Kerr Avatar
Kerr Platinum Member Norm Kerr
Ann Arbor, MI, USA   USA
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1974 MG Midget
For everything you could ever want to know about SU fuel pumps (including an article with photos showing why they won't survive a plugged filter upstream) here is a link to Dave DuBois web site, and excellent resource:

http://www.dbraun99.com/Dave%20DuBois/


MG Guru Tech Index has an amazing wealth of knowledge in it, from which I have learned immensely, he says the same in his fuel pump filters article:
http://www.mgaguru.com/mgtech/


It is true that many aftermarket pumps require a filter upstream, that is because they work differently than SU does.
Norm

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