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Old 03-23-2020, 08:55 PM   #1
2turbotoys
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Default Early 240 in line fuel pump fitting size

What are the fittings on the early 240 in line fuel pump? I did search, and came up with plenty of info on later cars but not for the early cars.

I am putting a DW200 pump in the tank and eliminating the in line pump on my '79 since both pumps are dead.

The car is MS, not K Jet.
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Old 03-23-2020, 08:58 PM   #2
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Pretty sure they're a 14mm banjo.
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Old 03-23-2020, 09:02 PM   #3
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Dam, I will have to cut that off and rig something else up if that is true. Wish I would have checked while it was on the lift.
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Old 03-23-2020, 10:03 PM   #4
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I think that's true, if you're connecting to the pump output line. However, with MS you probably don't need/want the accumulator, right, which joins with the flare fitting?

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Old 03-23-2020, 10:13 PM   #5
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The accumulator is not there, so that is correct. In the pic that looks like I just need barbed fittings? I thought it was hard lines but looks like barbs..
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Old 03-23-2020, 10:17 PM   #6
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The accumulator is not there, so that is correct. In the pic that looks like I just need barbed fittings? I thought it was hard lines but looks like barbs..
Yes that's a piece of replacement fuel hose instead of the original hard plastic line.

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Old 03-23-2020, 10:19 PM   #7
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Ah, so I need to know what the fitting on the right side of the pic is.
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Old 03-23-2020, 11:06 PM   #8
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They're called Cohline fittings.

https://www.belmetric.com/cohline-fi...tc-c-1041_930/
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Old 03-23-2020, 11:31 PM   #9
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I was thinking more about the thread size and sealing surface, I didn't state that correctly I guess.

What do I need to bypass that whole assembly is what I am asking.
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Old 03-23-2020, 11:52 PM   #10
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Quote:
Originally Posted by 2turbotoys View Post
I was thinking more about the thread size and sealing surface, I didn't state that correctly I guess.

What do I need to bypass that whole assembly is what I am asking.
Bypassing the old high pressure pump and accumulator, and using a high-pressure in-tank pump?

I think the line fitting is 14mm inverted flare... So the fitting would need to be male threads and a convace conical sealing surface (female flare).
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Old 03-24-2020, 08:52 AM   #11
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If you have to pull the sending unit out of the tank to put in the DW200 pump, why not put an AN fitting on the sending unit and run a new line to the engine bay?
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Old 03-24-2020, 07:42 PM   #12
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Quote:
Originally Posted by culberro View Post
Bypassing the old high pressure pump and accumulator, and using a high-pressure in-tank pump?

I think the line fitting is 14mm inverted flare... So the fitting would need to be male threads and a convace conical sealing surface (female flare).
That is exactly what I am doing. Ok thanks!
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Old 03-24-2020, 07:45 PM   #13
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Quote:
Originally Posted by oldschoolvolvo View Post
If you have to pull the sending unit out of the tank to put in the DW200 pump, why not put an AN fitting on the sending unit and run a new line to the engine bay?
Because there is nothing wrong with the old lines, and the last thing I need is another car project. I would rather spend the time on my engine swap car.

I've done so many sending units it is really easy at this point.
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Old 03-26-2020, 08:59 PM   #14
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Ok, it's done. For anyone else doing this (keeping in mind this is a MS car, accumulator was already gone but lines look original):

What is actually under this particular car was the line from the pump, rubber hose. Other side was also a rubber line with super rusty fittings SAE fittings of some kind. That line is smaller. I didn't bother messing with the rusty stuff, just cut it off both sides. The engine side hose has a hose barb at the engine side. I slit the hose and pulled it off.
I used a 1/2" to 5/16" hose ID barbed adapter and a length of 5/16" ID fuel injection hose to connect. It is a little loose on the engine side, but the hose clamp pulled it tight with no leaks.
Threw the removed rusty crap and bad pump in the trash, done.

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