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#81

Mechanicals / Re: Siphon hose fell in gas ta...

Last post by raueda1 - 05 April 2024, 01:27 PM

Endoscope and grabber was my first attempt... to no avail

Did you go in through the fuel gauge sensor hole on the top of the tank?  My recollection is that the opening is a couple inches wide (though my memory isn't what it used to be). Anyway, I'd think that you'd be able to at least see the tube from the top. Or maybe extend a small mirror on telescoping shaft through the top to look around? Unless of course it's lodged in the filter neck, but then presumably you wouldn't be able to siphon the gas out.

#82

Mechanicals / Re: No fuel accumulator??

Last post by mrkozzy - 05 April 2024, 06:52 AM

To  UTn_boy

Once again I sit here quietly reading and learning something about my d-jet, something that I never knew.

Thanks again for the input. 

Its helpful to more of us than you realize! 

Cheers

#83

Mechanicals / Re: No fuel accumulator??

Last post by Randys01 - 04 April 2024, 06:47 PM

What a fantastic reply from UTN........!.  would you like him to fit it?!! 

#84

Shop / NOS Protective sump guard/baff...

Last post by floyd111 - 04 April 2024, 06:32 PM

The title says it all, I guess.
You may PM me for any questions

#85

Mechanicals / Re: No fuel accumulator??

Last post by ethanrmerc - 04 April 2024, 12:26 PM

Thank you for your quick response! New to the EPS... thanks for the info on finding my engine. Now to find an accumulator...

#86

Mechanicals / Re: No fuel accumulator??

Last post by rumb - 04 April 2024, 12:02 PM

Looks like the line from tank to the damper has an extra brass fitting. That hose will need replaced which means you have to drain the tank.  You can at least change the tank filter then...

Best route is just pull the fuel package and replace everything.

#87

Mechanicals / Re: No fuel accumulator??

Last post by UTn_boy - 04 April 2024, 12:01 PM

The accumulator for all D-Jetronic engines is mounted on top of the rear of the intake manifold under the rear of the air filter housing.  They haven't been available for around 7 years.  Sometimes you'll luck out and find a new one online, but they're usually $400-$1,000.  For now, people are using something aftermarket or they just deal with the hot start issues.  Though, a used one is a possibility, but even then the used ones are eye wateringly expensive.  Knowing they may last a week or years is a huge gamble. 

To find the accumulator in EPC, you'll have to select your car, and then select the engine (117.983), and then click on group 07 (Injection system), and select frame number two (070).  The accumulator is callout number 176.  The correct part number is 000-078-03-89.  What you reference above is for later cars with K-Jetronic fuel injection.  That is why the diagram you're looking at shows no part number.....it's not valid for your model. 

#88

Mechanicals / Re: No fuel accumulator??

Last post by ethanrmerc - 04 April 2024, 11:29 AM

Ah, I finally found the part number from ECP, aptly named "storage" for those concerned. Part number is 0004760121.

And the diagram.

I think my best bet is to buy the replacement and just take the whole fuel pump system out to investigate. Does anyone know if I'll want an empty tank for this, or a good way to clamp off the fuel lines?

-E

#89

Mechanicals / No fuel accumulator??

Last post by ethanrmerc - 04 April 2024, 11:14 AM

Hi all,

Title is a little dramatic, I'm sure I just can't find it.

I've got a 1973 450 SE up here in Seattle, and am having a warm start issue that I've dwindled down to a bad fuel accumulator.

Hopped under the benz to make sure I ordered the right one, and I can't find it!

Would have expected it to be above the charcoal filter here somewhere, but nothing... I looked all around. Is it possible I just don't have one?

Btw, this is a very early 1973, engine number 178. Does anyone have experience with these early w116's/ know the part number for the accumulator. I checked the ECP, and the diagram shows a fuel accumulator, but it does't list a part number 

As always, thank y'all for your wisdom

-E

#90

Mechanicals / Re: Siphon hose fell in gas ta...

Last post by ethanrmerc - 04 April 2024, 09:28 AM

I hate to say it, but I'd strongly recommend getting it out, or at least not ignore it indefinitely.  Leaving it in is an experiment in the long term effect of gasoline on PVC or whatever rubber it was.  I've already done that experiment in my pre-retirement career.  It generally isn't nice.  In the case of rubber, at a minimum it's likely that the tubing will swell and lose mechanical integrity.  Then it's subject to falling apart with b its of hose stuff in your fuel and messing up filters the rest of the fuel system.  In the case of PVC you risk extracting the plasticisers with a similar end result.  This wouldn't be overnight, to be sure.  But by ignoring it you risk having to the job that you seek to avoid by leaving it in.  In fact, the job would probably end up being a lot bigger if crp gets through your fuel system. If it were me I'd get it out.  I can't suggest some obvious way, but there must be one.  My thoughts go to endoscopes and those long grabbers on a flexible shaft, but I haven't tried myself.  Removing the sender gives a pretty big hole to poke around it.  Good luck!

Endoscope and grabber was my first attempt... to no avail