My 240D's endless fuel leak finally was traced to the bottom of my hand primer. I bought a new one (the spring loaded kind) and started to install it.

Now the problem..... How in the H#$$ do you get out the old one? How do you get the new one tight? There is not a lot of clearance there.... Fuel lines are on one side and the pump wall is on the other. Is there a special tool to use or do I have to dismantle half of the pump?

Anyone know the trick to this?
Thanks in advance

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William
76 240D (W115) - 555K miles
78 300D (W123) - 200K+ miles -- SOLD

You need a crows foot (24mm I think). Put it on a long extension and you will be in and out in no time.

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I know this sounds stupid, but I just replaced one and I used a small set of vice-grips that I twisted into position, .... I know, but it worked.

I tried the crow's foot... not enough room.

Would it be a problem to simply pull the two bolts that hold the assembly to the side of the pump? If I am careful, I should be able to save the gasket... right?

Any ideas from others?

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William
76 240D (W115) - 555K miles
78 300D (W123) - 200K+ miles -- SOLD

Sometime in my past experience, I borrowed a plumber's tool from a friend that used a flexible belt to wrap around faucets, etc, which had no wrench fittings on them. It worked like an oil filter wrench; wrap the belt around the item to be loosened, bring it back into the handle and apply leverage.

Your description of the problem makes it sound as if this might work, it you can locate one. Sorry, but I just don't know the technical name for it. Maybe a plumber friend can help.

Good luck.

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Ted
1979 240D
160,000 miles

I have replaced the hand pump on my 115 before, can remember all the details. I think I used crows feet to remove it. May be that was the reason I own a set of crow feet.

jack

Ted,
I actuall thought about using this type of tool yesterday... I don't own one, but they are cheap, and I can get one at the local ACE Hardware. It is worth a try and I can always use another tool in the ole tool box.

All,
Thanks for the crows foot suggestion. It would probably work, but I think my set is too thick and 'heavy duty' for the job.

I also had one emailed suggestion of removing the fuel-line connections from one side of the unit. I tried this and now need to get new fuel-line connector on the left side... the one that connects to the fuel filter. I broke it loose okay, but the nipple popped right out..... hummmmm... possibly another source of leak?.... After removing this connector, the crows foot is STILL too thick and wide to work.

I will probably try the plumbers tool first, and then pull the assembly from the pump so I can access from the back-side.

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William
76 240D (W115) - 555K miles
78 300D (W123) - 200K+ miles -- SOLD

I just changed the primer pump on my 83 300D this weekend. I took off the fuel pump intake hose and the fitting it is attached to, then i had plenty of room.

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[This message has been edited by polang (edited 11-14-2000).]

quote:

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Originally posted by polang:
I just changed the primer pump on my 83 300D this weekend. I took off the fuel pump intake hose and the fitting it is attached to, then I had plenty of room.

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Hi William,
Huge coincidence! Just saw a Sears ad on TV for the tool I was trying to describe. It is called a "strap wrench". Don't know what Ace Hardware would charge for one but Sears wanted $19.95 plus $5.95 S & H. Just in case you might want to pursue this, the telephone number was 1-800-954-6677. Naturally, their ad made it appear to be a very utilitarian tool.

Go ahead and get yourself a strap wrench. You know what they say, "Every project is an excuse to buy a new tool."

Good luck. Hope you get your problem solved soon now.



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Ted
1979 240D
160,000 miles

If removing the fuel line did not help, your crow's foot was too thick. You either buy a thinner one or grind off the crow's foot just enough to do the job. You possibly do not need modified crow's foot for installation since the new pump may be smaller.

David

Just read that you had broken the nipple on the fuel connector to the fuel pump. If you will come by my house, I'll give you one. Just call to be sure when I'll be home.
Bill Lewallen

David,
My crow's foot is indeed too thick AND wide.
I picked up a cheap set on my lunch break today and they are much thinner. They should do the trick. Fingers crossed....

Bill,
Thanks for the offer. I'll call and take it off your hands in a few days when I have the chance to get to Lex. Will be in touch.

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William
76 240D (W115) - 555K miles
78 300D (W123) - 200K+ miles -- SOLD