Diesel Leak

[rbarnes]

I have suddenly developed a diesel leak on my '83 300D. It appears to be coming from around the base of the hand pump area. It continues to leak even though I haven't driven it for a few days. I have the white top screw down type. Does this normally require replacing the entire unit or just the hand pump itself?
Thanks for your help.
-RB.

[P.E.Haiges]

Rbarnes,

Just the pump can be replaced. There is a new type that you just push down and release and the it requires no screwing the cap.
Get this type it you are replacing the pump. Its available from Fastlane.

P E H

[TomJ]

Originally posted by P.E.Haiges
Rbarnes,

Just the pump can be replaced. There is a new type that you just push down and release and the it requires no screwing the cap.
Get this type it you are replacing the pump. Its available from Fastlane.

P E H

Ditto on the above. It's a Bosch hand pump. Has a black post that you pump, no unsrewing, no leaks, cake to replace, MORE than worth the effort. Should cost about $18/shipped.

Here's a pic:

[rbarnes]

Thanks everyone. I have one on order from Fastlane. We'll if that works. I'' try to change out the fuel filters while I'm at it.
-RB.

[P.E.Haiges]

rbarnes,

Do you have full power going uphill? If so, you are wasting your time and money replacing the fuel filters.

If it ain't broke, don't fix it.

P E H

[84300DT]

replacing the pump is a good idea! i also have the old style 'white' pump and am afraid to touch it for fear of springing a leak as the plastic appears very brittle. if your inline filter is blackened then replace it. it is a very cheap diy fix. get the 'clear' kind from fastlane so you can easily monitor the condition of your fuel and lines/tank.

[rbarnes]

Changed out the hand pump last night. It appears that the leak is gone. It was so late when I finished that I followed PEH's advise and left the fuel filters alone. It was a little tricky getting a wrench on the little pump due to its angle and proximity to the fender well. The handles on all my wrenches were just too long.

Thanks to everyone for their input. It sure gives me confidence to do these repairs.

[jerryyoung]

I used a crow's foot and long extension to remove and replace mine, worked very well.
Jerry

[rbarnes]

That sounds like a great way to do it. I wish that I had a crowsfoot. I can see where using that would have made things a snap.
Thanks for the advise, I may have to acquire one before I start a project like that again. My son's 300D still has the old style primer pump on it.

[jake1222]

what size is the crows foot that you need to remove the old style pump. I've already got my new one and am planning on replacing it this weekend but I don't know what size to get for removale of the old pump.

[Stevo]

The other thing that works good if you have any plumbing things around is a fauset (sp?) wrench, gets right in there and its a cheap tool.

[Palangi]

Did Y'all know that fuel hose nipple next to the hand pump can simply be unscrewed? That way you won't need a crowfoot wrench. At least it's that way on my 300D. The old 240D, on the other hand, looks a bit challenging.

[jerryyoung]

I don't remember the size of the crow's foot I used, I THINK it is 17MM, just find what open end wrench will fit the new pump, and go purchase same size in a CF wrench. I bought a complete set of 3/8" drive metric CF wrenches at Harbor Freight for not much, I'm sure Sears has them also. I couldn't see paying a lot of money for a set that I would only use occasionally so bought the cheap set. They ahve saved my butt several times
Jerry

[Brian Carlton]

I second what Palangi stated above. Just remove the hose nipple to the immediate right of the pump and you do not need any special crow's feet to get the pump out.

Brian Carlton
1984 300SD

Which part and how do I remove this...?