[W126 Coupe] no fuel flow

[Dick Spellman]

no he bypassed with a jumper on 7&8  see the first post

Carl Hansen wrote:

> I suspect you checked your fuel relay?

>

> Carl H.

>

>

> ----- Original Message ----- From: "Dick Spellman" <spell.yy at verizon.net>

> To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>

> Sent: Friday, January 11, 2008 8:31 PM

> Subject: Re: [W126 Coupe] no fuel flow

>

>

>> forgot to mention check valve is identified as 32 in the diagram

>>

>> Markus Meyer wrote:

>>> Actually now that I think of it, I believe the line from regulator 

>>> to fuel cooler is connected.  But yes, I could still be sucking air, 

>>> since the engine was disconnected for a while in the car I got it 

>>> out of, and the lines in the car were disconnected as well.  Maybe I 

>>> should just hook it all up and see what happens??

>>>

>>> Markus Meyer

>>> mfm at meyerprobateproperties.com <mailto:mfm at meyerprobateproperties.com>

>>> www.meyerprobateproperties.com <http://www.meyerprobateproperties.com/>

>>> Meyer Probate & Properties, LLC

>>> 484-919-9762

>>>

>>>

>>>     -------- Original Message --------

>>>     Subject: Re: [W126 Coupe] no fuel flow

>>>     From: Dick Spellman <spell.yy at verizon.net>

>>>     Date: Fri, January 11, 2008 8:11 pm

>>>     To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>

>>>

>>>     Actually Markus. If the return line is open would you be sucking

>>>     air and

>>>     loosing the prime on the fuel pumps??? Never having tested with 

>>> both

>>>     lines open, I have no way of knowing if this is what you dealing

>>>     with so

>>>     just a guess.

>>>

>>>     Dick

>>>

>>>     Markus Meyer wrote:

>>>     > Hi Dick,

>>>     >

>>>     > I think you misread, or I didn't communicate well. The "toasted

>>>     > engine" is outta there. I put in another motor from KNOWN GOOD 

>>> CAR

>>>     > that ran fine! I do NOT have the lines hooked up to the engine

>>>     yet, I

>>>     > am simply testing that fuel gets FROM the tank TO the fuel

>>>     > distributor. The supply line coming from the tank to the

>>>     distributor

>>>     > is hooked into a bottle for now. I thought the accumulator in the

>>>     > back by the pumps/filter is for warm starts. I thought running 

>>> the

>>>     > pumps in constant on should cause fuel to flow. I am NOT 

>>> trying to

>>>     > check starting the car yet, that's the next step. I wanted to 

>>> make

>>>     > sure fuel was flowing first, since the car itself was an

>>>     unknown, but

>>>     > the engine is not. Make sense? So I am not trying to test 

>>> pressures

>>>     > or any of that. I am just trying to make sure fuel flows from

>>>     pump to

>>>     > fuel distributor, which right now, it is not.

>>>     >

>>>     > Markus Meyer

>>>     > mfm at meyerprobateproperties.com <#Compose>

>>>     > <mailto:mfm at meyerprobatepropertie%0A%20s.com>

>>>     > www.meyerprobateproperties.com

>>>     <http://www.meyerprobateproperties.com/> &l

>>>     t;http://www.meyerprobateproperties.com/>

>>>     > Meyer Probate & Properties, LLC

>>>     > 484-919-9762

>>>     >

>>>     >

>>>     > -------- Original Message --------

>>>     > Subject: Re: [W126 Coupe] no fuel flow

>>>     > From: Dick Spellman <spell.yy at verizon.net <#Compose>>

>>>     > Date: Fri, January 11, 2008 7:29 pm

>>>     > To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com 

>>> <#Compose>>

>>>     >

>>>     > Hi Markus,

>>>     >

>>>     > Flow. You have a fuel regulator on the supply line before

>>>     > connecting to

>>>     > the fuel distributor. That's where I'd test for fuel flow. 

>>> Also the

>>>     > return line and damper can be checked which if blocked would

>>>     restrict

>>>     > flow on the supply too. Disconnecting at the fuel regulator will

>>>     tell

>>>     > you if you have fuel.

>>>     >

>>>     > Markus you need a set of gauges for most the pressure tests. Read

>>>     > 07.3-120 and follow the steps. Given that the engine may have had

>>>     > excess fuel dumped in there I be sure check the pressures & cold

>>>     > start

>>>     > valve plus temp switch that drives this valve and hope the engine

>>>     > is not

>>>     > toast from r aw fuel mixing with the oil.

>>>     >

>>>     > Dick

>>>     > not a mech, just a diy'r remember

>>>     >

>>>     > Markus Meyer wrote:

>>>     > > I have an 89 560SEL I just finished transplanting an engine and

>>>     > trans

>>>     > > into. I know the motor is good, it came from a good working

>>>     car. As

>>>     > > a quick test, I wanted to verify I had fuel coming out of 

>>> the fuel

>>>     > > line going into the fuel distributor. That line is what I stuck

>>>     > into

>>>     > > a bottle to do the test. Then, I jumpered pins 7&8 on the fuel

>>>     pump

>>>     > > relay, and no fuel.

>>>     > >

>>>     > > I tested voltage at each of the pumps (there are 2) and each 

>>> read

>>>     > > about 10.5 volts. I also tested continuity on each pump, 

>>> both read

>>>     > > about 2 ohms. I can hear both pumps "buzzing/humming". I know

>>>     > > there's gas in the tank for two reasons - I added about 2-3

>>>     > gallons,

>>>     > > and just to make sure it made it to the first pump, I pulled 

>>> the

>>>     > hose

>>>     > > from the tank to the pump off and fuel poured out. Also, when I

>>>     > got < BR>> the car, I was told the engine might be bad because

>>>     > "too much fuel"

>>>     > > was dumping into the engine, so I know there was flow at one

>>>     point!

>>>     > > ;

>>>     > > There doesn't seem to be an easy way to remove the "out" on 

>>> each

>>>     > pump

>>>     > > one by one to test flow, considering the out on each pump is

>>>     > where the

>>>     > > wiring connections are, and I don't w ant fuel to pour onto the

>>>     > live wires!

>>>     > >

>>>     > > So what can I check/test? What could be the problem? I 

>>> should be

>>>     > > getting fuel flow by doing this test, right? What the heck am I

>>>     > missing?

>>>     > >

>>>     > >

>>>     > > Markus Meyer

>>>     > > mfm at meyerprobateproperties.com <#Compose> <#Compose>

>>>     > <mailto:mfm at meyerprobateproperties.com <#Compose> <#Compose>>

>>>     > > www.meyerprobateproperties.com

>>>     <http://www.meyerprobateproperties.com/>

>>>     > <http://www.meyerpro%0A%20bateproperties.com/

>>>     <http://www.meyerpro%0a%20bateproperties.com/>>

>>>     > <http://www.meyerprobateproperties.com/>

>>>     > > Meyer Probate & Properties, LLC

>>>     > > 484-919-9762

>>>     > >

>>>     >

>>>     

>>> ------------------------------------------------------------------------ 

>>>

>>>     > >

>>>     > > The MB Coupes Website!

>>>     > > W126 SEC Mailing List

>>>     > > Postings remain property of MB Coupes, L.L.C.

>>>     >

>>>     > The MB Coupes Website!

>>>     > W126 SEC Mailing List

>>>     > Postings remain property of MB Coupes, L.L.C.

>>>     >

>>>     >

>>>     

>>> ------------------------------------------------------------------------ 

>>>

>>>     >

>>>     > The MB Coupes Website!

>>>     > W126 SEC Mailing List

>>>     > Postings remain property of MB Coupes, L.L.C.

>>>

>>>     The MB Coupes Website!

>>>     W126 SEC Mailing List

>>>     Postings remain property of MB Coupes, L.L.C.

>>>

>>> ------------------------------------------------------------------------ 

>>>

>>>

>>> The MB Coupes Website!

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>>> Postings remain property of MB Coupes, L.L.C.

>>

>> The MB Coupes Website!

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>> Postings remain property of MB Coupes, L.L.C. 

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>