Re: [diesel_mercedes] Help bleeding fuel system after filter replacement

 

Guys, 

Thanks for the advice. I went back and started from scratch. Still no joy, so I pulled the injector lines and had my son crank the car while I worked the fuel and pumped the primer pump. After a few seconds, the IP finally started spitting at me. I installed the injector lines, bled them and then got it started. 

After a quick test drive, I washed the front fender and all is well. 

Ben Pender
Fat-fingered from my iPhone

On Aug 25, 2014, at 11:25 AM, "'Mark in Lakewood, CO' beeser750@q.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com> wrote:

 

Probably just need to keep cranking.  Have you tried cracking open the fuel line nuts at the injectors to see if fuel is getting to those points?  Are you using the clear primary fuel filter, and seeing fuel in there?  Fuel line clamps and fittings are all tight, right?

Like Bogy said, crank with the the accelerator pedal all the way down, and it'll eventually fire a few weak pops.  It should start pretty soon after that.  It may take quite a bit of cranking....

(When I re-installed my injector pump, it had leaked dry onto the shop floor.  Cranked and cranked and cranked, and could not get even a pop out of it.  The car was pointed slightly upwards.  I removed the number one injector line, then removed the part where the line bolts onto the pump.  It's a fitting that's held onto the pump housing with a 13mm nut.  Be careful if you do this, as there are some small parts that can drop out when this fitting is lifted out. The pump was nearly dry down there.  I worked the primer pump until fuel came out of the hole, then replaced everything.  It started pretty soon after that.)

Mark
From: "Ben Pender ben_pender@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com>
To: "diesel mercedes" <diesel_mercedes@yahoogroups.com>
Sent: Sunday, August 24, 2014 9:58:09 PM
Subject: Re: [diesel_mercedes] Help bleeding fuel system after filter replacement

 

Guys,

I meant to say that after the diesel purge, I changed the fuel filters, and so now I can't seem to get it to start. I think I've purged the air from the main filter by cracking the banjo fitting on the outlet line from the filter to the IP. I've also loosened the injector lines and after a cumulative 3-4 minutes of cranking (in 15-29 second bursts), still see no fuel at the injector lines. 

As I asked previously, am I missing something, a or do I need to just keep cranking?

Ben Pender
Fat-fingered from my iPhone

On Aug 24, 2014, at 10:45 PM, "Ben Pender ben_pender@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com> wrote:

 

Hey guys,

After completing the diesel purge on my 83 240D, I can't seem to get the fuel system bled. I cracked the outlet line from the main filter to the IP and got fuel out. Cracked the other end of the line (input) line at the IP and got fuel out. I've loosened the injector lines and cranked in 20 second bursts and haven't gotten anything at the injector lines. Cranked so much the battery needed a recharge.

Am I missing a trick or do I need to just keep cranking?

Thanks!

Ben Pender
Fat-fingered from my iPhone

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Re: [diesel_mercedes] 300D car vibrates at idle

 

Old diesels are known for shaking at idle. Mounts, injectors, wear, most everything contributes. But mounts and injectors are probably number 1  . A injector is supposed to spray the finest mist you have ever seen but given wear it gets not so fine= rougher running. But diesels keep running and running, just not so smooth. I still have my injector bench tester, havent seen it for years tho. Max


On Sun, Aug 24, 2014 at 11:34 AM, corvallis@peoplepc.com [diesel_mercedes] <diesel_mercedes@yahoogroups.com> wrote:


I will guess low fuel cetane.

Nate could chime in here with fuel quality and additives.  Bill in Oregon

 

From: diesel_mercedes@yahoogroups.com [mailto:diesel_mercedes@yahoogroups.com]
Sent: Sunday, August 24, 2014 9:51 AM
To: diesel_mercedes@yahoogroups.com
Subject: [diesel_mercedes] 300D car vibrates at idle

 

Just getting familiar with the mercedes and have had no other experience with them.A new to me 84 300D vibrates very loudly at idle.
It is so noticeable that the sunroof is making a loud hum.
I just got the car started this weekend. Owner had said the trans quit working and had lost the ign key.
I picked up a key and ign at the junk yard and added some trans fluid since it was about 1.5 quart low.
car seems it will drive fine now but have only drove it in the yard so far.
when it is at idle there vibration all over the car so anything that will make a noise or hum does so.
Rev the car up and the hum goes away.
It is possible I just need to idle the car up.
It kind of reminds me of the vibration I felt in a TR6 I had when driving and it turned out to the a drive shaft to rearend U joint.
But with the 300D the vibration is at idle in park.
Has any one seen this before?

I have not checked motor mounts nor have I checked transmission mounts.




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Posted by: Max temple <jasperezra@gmail.com>
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Re: [diesel_mercedes] Help bleeding fuel system after filter replacement

 

Probably just need to keep cranking.  Have you tried cracking open the fuel line nuts at the injectors to see if fuel is getting to those points?  Are you using the clear primary fuel filter, and seeing fuel in there?  Fuel line clamps and fittings are all tight, right?

Like Bogy said, crank with the the accelerator pedal all the way down, and it'll eventually fire a few weak pops.  It should start pretty soon after that.  It may take quite a bit of cranking....

(When I re-installed my injector pump, it had leaked dry onto the shop floor.  Cranked and cranked and cranked, and could not get even a pop out of it.  The car was pointed slightly upwards.  I removed the number one injector line, then removed the part where the line bolts onto the pump.  It's a fitting that's held onto the pump housing with a 13mm nut.  Be careful if you do this, as there are some small parts that can drop out when this fitting is lifted out. The pump was nearly dry down there.  I worked the primer pump until fuel came out of the hole, then replaced everything.  It started pretty soon after that.)

Mark
From: "Ben Pender ben_pender@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com>
To: "diesel mercedes" <diesel_mercedes@yahoogroups.com>
Sent: Sunday, August 24, 2014 9:58:09 PM
Subject: Re: [diesel_mercedes] Help bleeding fuel system after filter replacement

 

Guys,

I meant to say that after the diesel purge, I changed the fuel filters, and so now I can't seem to get it to start. I think I've purged the air from the main filter by cracking the banjo fitting on the outlet line from the filter to the IP. I've also loosened the injector lines and after a cumulative 3-4 minutes of cranking (in 15-29 second bursts), still see no fuel at the injector lines. 

As I asked previously, am I missing something, a or do I need to just keep cranking?

Ben Pender
Fat-fingered from my iPhone

On Aug 24, 2014, at 10:45 PM, "Ben Pender ben_pender@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com> wrote:

 

Hey guys,

After completing the diesel purge on my 83 240D, I can't seem to get the fuel system bled. I cracked the outlet line from the main filter to the IP and got fuel out. Cracked the other end of the line (input) line at the IP and got fuel out. I've loosened the injector lines and cranked in 20 second bursts and haven't gotten anything at the injector lines. Cranked so much the battery needed a recharge.

Am I missing a trick or do I need to just keep cranking?

Thanks!

Ben Pender
Fat-fingered from my iPhone

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Posted by: "Mark in Lakewood, CO" <beeser750@q.com>
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[diesel_mercedes] Re: 300D car vibrates at idle

 

Check into the rack dampener. There is an upgrade and it can be
recognized by the gold color vs the silver color of the original. Google
"rack dampener" Mercedes.

Roland Hyatt
1996 E300D
1984 300SD
1981 240D
1980 240D

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Posted by: Roland Hyatt <wrolandhyattjr@sbcglobal.net>
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[diesel_mercedes] Re: Help bleeding fuel system after filter replacement

 

I'm assuming that you used the primer pump to fill the fuel filter,
until diesel runs out at the top of the filter, usually I just not fully
tighten the center bolt on top until it's full. If the filter was full,
you shouldn't have needed to purge the lines. I'd start back at the
filter, and make sure it's full, then start purging the lines again.
There's a bubble in their somewhere.

Rob
==

On 8/25/14, 12:50 AM, diesel_mercedes@yahoogroups.com wrote:
> Re: Help bleeding fuel system after filter replacement
> Posted by: "Ben Pender"ben_pender@yahoo.com ben_pender
> Date: Sun Aug 24, 2014 8:58 pm ((PDT))
>
> Guys,
>
> I meant to say that after the diesel purge, I changed the fuel filters, and so now I can't seem to get it to start. I think I've purged the air from the main filter by cracking the banjo fitting on the outlet line from the filter to the IP. I've also loosened the injector lines and after a cumulative 3-4 minutes of cranking (in 15-29 second bursts), still see no fuel at the injector lines.
>
> As I asked previously, am I missing something, a or do I need to just keep cranking?
>
> Ben Pender
> Fat-fingered from my iPhone

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Posted by: Aleph93 <aleph93@ca.rr.com>
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