Re: [MBZ] 91 300D Problem at Startup
Larry,
I had a similar problem when I ran the fuel low. Did you change the main
filter? On mine inline would look OK but when I changed the cartridge,
it made a big difference.
Dwight
Dwight Giles, Jr
1979 240D auto, 250K + miles
1990 300D 2.5t, 130K miles
Wickford, RI
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Friday, March 24, 2006 9:00 PM
To: [EMAIL PROTECTED]
Subject: [MBZ] 91 300D Problem at Startup
Howdy -
Well, I've had my new (to me) 91 300D 2.5 Turbo and still am crazy about
this car - told my wife I wouldn't mind finding another and letting my
78
240D go. ;-)
Anyway - I've used 3 bottles of Biocide (purchased from West Marine) --
added per the instructions - 2 bottles at 1/2 tank - then filled up with
the
3rd bottle added, changed the fuel prefilter and the main filter. But
sometimes - and the problem being intermittant is frustrating - when the
car
is first started after sitting for 10+ hours with temp in the 50s or
below,
it acts like it's running on 2 or 3 cylinders with white smoke from the
exhaust. If the accel pedal is held to the floor it will clear up
within 10
seconds or so - then it's ok - it takes off like a scalded dog.
WHen I changed the fuel filters, I allowed the fuel to drain into a
glass
jar to see if there was any contamination present - if there was
anything
there it was microscopic!
I thought maybe there was some water in the fuel or filters - but have
run 2
tanks of fuel thru as well as changed the filters. I use fuel bought
from
a Mobil station that gets lots of truck traffic so it's always fresh.
I'm thinking I might try some LubriMoly Diesel Purge - if ya'll think it
might help.
But I'm at a loss to understand why it runs like this. I bought a set
of
GPs but it starts *instantly* in any temperature making me thing the GPs
are
fine. Also, the GP dash light stays on for about 10 seconds when dead
cold.
Which also makes me think the GPs are ok.
Any suggestions?TIA
Sincerely,
Larry T ('74 911, '67 MGB, 91 300D Turbo)
A Blood Test for your oil - www.youroil.net
For Test Results http://members.rennlist.com/oil
Weber Carb Stuff http://members.rennlist.com/webercarbs
http://members.rennlist.com/my_911/Index.htm For my Paint Job Info
___
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Re: [MBZ] 91 300D Problem at Startup
Tank strainer issue? Also, from my experience the inline filters clog
faster than the spin-on.
On 3/24/06, Dwight E. Giles, Jr <[EMAIL PROTECTED]> wrote:
>
> Larry,
> I had a similar problem when I ran the fuel low. Did you change the main
> filter? On mine inline would look OK but when I changed the cartridge,
> it made a big difference.
> Dwight
>
> Dwight Giles, Jr
> 1979 240D auto, 250K + miles
> 1990 300D 2.5t, 130K miles
> Wickford, RI
>
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Friday, March 24, 2006 9:00 PM
> To: [EMAIL PROTECTED]
> Subject: [MBZ] 91 300D Problem at Startup
>
>
> Howdy -
> Well, I've had my new (to me) 91 300D 2.5 Turbo and still am crazy about
>
> this car - told my wife I wouldn't mind finding another and letting my
> 78
> 240D go. ;-)
>
> Anyway - I've used 3 bottles of Biocide (purchased from West Marine) --
>
> added per the instructions - 2 bottles at 1/2 tank - then filled up with
> the
> 3rd bottle added, changed the fuel prefilter and the main filter. But
> sometimes - and the problem being intermittant is frustrating - when the
> car
> is first started after sitting for 10+ hours with temp in the 50s or
> below,
> it acts like it's running on 2 or 3 cylinders with white smoke from the
> exhaust. If the accel pedal is held to the floor it will clear up
> within 10
> seconds or so - then it's ok - it takes off like a scalded dog.
>
> WHen I changed the fuel filters, I allowed the fuel to drain into a
> glass
> jar to see if there was any contamination present - if there was
> anything
> there it was microscopic!
>
> I thought maybe there was some water in the fuel or filters - but have
> run 2
> tanks of fuel thru as well as changed the filters. I use fuel bought
> from
> a Mobil station that gets lots of truck traffic so it's always fresh.
>
> I'm thinking I might try some LubriMoly Diesel Purge - if ya'll think it
>
> might help.
>
> But I'm at a loss to understand why it runs like this. I bought a set
> of
> GPs but it starts *instantly* in any temperature making me thing the GPs
> are
> fine. Also, the GP dash light stays on for about 10 seconds when dead
> cold.
> Which also makes me think the GPs are ok.
>
> Any suggestions?TIA
>
> Sincerely,
> Larry T ('74 911, '67 MGB, 91 300D Turbo)
> A Blood Test for your oil - www.youroil.net
> For Test Results http://members.rennlist.com/oil
> Weber Carb Stuff http://members.rennlist.com/webercarbs
> http://members.rennlist.com/my_911/Index.htm For my Paint Job Info
>
>
>
> ___
> http://www.striplin.net
> For new parts see official list sponsor: http://www.buymbparts.com/ For
> used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://striplin.net/mailman/listinfo/mercedes_striplin.net
>
>
> ___
> http://www.striplin.net
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://striplin.net/mailman/listinfo/mercedes_striplin.net
>
--
Sunil Hari
1992 300D 2.5T - 286Kmi.
[EMAIL PROTECTED]
513-205-7474
Re: [MBZ] 91 300D Problem at Startup
[EMAIL PROTECTED] wrote: Howdy - Well, I've had my new (to me) 91 300D 2.5 Turbo and still am crazy about this car - told my wife I wouldn't mind finding another and letting my 78 240D go. ;-) Anyway - I've used 3 bottles of Biocide (purchased from West Marine) -- added per the instructions - 2 bottles at 1/2 tank - then filled up with the 3rd bottle added, changed the fuel prefilter and the main filter. But sometimes - and the problem being intermittant is frustrating - when the car is first started after sitting for 10+ hours with temp in the 50s or below, it acts like it's running on 2 or 3 cylinders with white smoke from the exhaust. If the accel pedal is held to the floor it will clear up within 10 seconds or so - then it's ok - it takes off like a scalded dog. WHen I changed the fuel filters, I allowed the fuel to drain into a glass jar to see if there was any contamination present - if there was anything there it was microscopic! I thought maybe there was some water in the fuel or filters - but have run 2 tanks of fuel thru as well as changed the filters. I use fuel bought from a Mobil station that gets lots of truck traffic so it's always fresh. I'm thinking I might try some LubriMoly Diesel Purge - if ya'll think it might help. But I'm at a loss to understand why it runs like this. I bought a set of GPs but it starts *instantly* in any temperature making me thing the GPs are fine. Also, the GP dash light stays on for about 10 seconds when dead cold. Which also makes me think the GPs are ok. What you report is common when the plugs don't heat fully. When the light goes out, the plugs are seldom hotter than 850-900 deg. C. If allowing the plugs to heat for an additional 10-15 seconds or so AFTER the dash light goes out (allowing them to get closer to their 1180 deg. C. max temp), you know that some extra heat helps. It's possible that several of the plugs are shrouded in a carbon sheath. This often results in incomplete combustion in those cylinders when the engine is first cold started. If that's so, then other than removal of the plugs and reaming the plug ports, all that's likely to improve this is a lot of high speed highway driving to allow the carbon accumulations to burn out (city driving will NEVER do it). It's recently been reported that what you report CAN result if a couple of the delivery valve seals are leaking. It is VERY unlikely that any "snake oil" will cure this problem. There is almost NOTHING I know of that is temperature sensitive that "snake oil" will cure (except water in the fuel or fuel clouding). Marshall -- Marshall Booth (who doesn't respond to unsigned questions) "der Dieseling Doktor" [EMAIL PROTECTED] '87 300TD 182Kmi, '84 190D 2.2 229Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi
Re: [MBZ] 91 300D Problem at Startup
Thanks Sunil and Dwight & Marshall -
As I reported, I changed the main and prefilters - without affect.
It sounds like Marshalls suggestion is highly likely -- my wife started
driving it to work yesterday - it's 55 miles each way at 60-70 mph 99% of
the time. I'll give that a try to see if it helps. Will try for some
longer trips also.
Unless I get energetic and decide to change the GPs. ;-) Course, it sounds
like I'll probably need to come up with a suitable reamer to clean out the
carbon.
Marshalls suggestion fits exactly with my thinking about the problem (tho I
didn't have nearly the precise definition Marshall provided) - the car only
had 99k when I bought it - 99K since being bought in 91 and me buying it
last month = 99k in 15 years or an average of 6600 miles/yr - making me
think it was driven very low miles probably around town - which would create
a carbon problem around the GPs. I may take the chicken way out and find a
shop I can trust to change the GPs and ream the appropriate areas -
but 1st we'll try the add'l GP heat time and the highway miles.
Thanks again to all!!
Sincerely,
Larry T ('74 911, '67 MGB, 91 300D Turbo)
A Blood Test for your oil - www.youroil.net
For Test Results http://members.rennlist.com/oil
Weber Carb Stuff http://members.rennlist.com/webercarbs
http://members.rennlist.com/my_911/Index.htm For my Paint Job Info
- Original Message -
From: "Sunil Hari" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <[EMAIL PROTECTED]>
Sent: Friday, March 24, 2006 9:21 PM
Subject: Re: [MBZ] 91 300D Problem at Startup
Tank strainer issue? Also, from my experience the inline filters clog
faster than the spin-on.
On 3/24/06, Dwight E. Giles, Jr <[EMAIL PROTECTED]> wrote:
Larry,
I had a similar problem when I ran the fuel low. Did you change the main
filter? On mine inline would look OK but when I changed the cartridge,
it made a big difference.
Dwight
Dwight Giles, Jr
1979 240D auto, 250K + miles
1990 300D 2.5t, 130K miles
Wickford, RI
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Friday, March 24, 2006 9:00 PM
To: [EMAIL PROTECTED]
Subject: [MBZ] 91 300D Problem at Startup
Howdy -
Well, I've had my new (to me) 91 300D 2.5 Turbo and still am crazy about
this car - told my wife I wouldn't mind finding another and letting my
78
240D go. ;-)
Anyway - I've used 3 bottles of Biocide (purchased from West Marine) --
added per the instructions - 2 bottles at 1/2 tank - then filled up with
the
3rd bottle added, changed the fuel prefilter and the main filter. But
sometimes - and the problem being intermittant is frustrating - when the
car
is first started after sitting for 10+ hours with temp in the 50s or
below,
it acts like it's running on 2 or 3 cylinders with white smoke from the
exhaust. If the accel pedal is held to the floor it will clear up
within 10
seconds or so - then it's ok - it takes off like a scalded dog.
WHen I changed the fuel filters, I allowed the fuel to drain into a
glass
jar to see if there was any contamination present - if there was
anything
there it was microscopic!
I thought maybe there was some water in the fuel or filters - but have
run 2
tanks of fuel thru as well as changed the filters. I use fuel bought
from
a Mobil station that gets lots of truck traffic so it's always fresh.
I'm thinking I might try some LubriMoly Diesel Purge - if ya'll think it
might help.
But I'm at a loss to understand why it runs like this. I bought a set
of
GPs but it starts *instantly* in any temperature making me thing the GPs
are
fine. Also, the GP dash light stays on for about 10 seconds when dead
cold.
Which also makes me think the GPs are ok.
Any suggestions?TIA
Sincerely,
Larry T ('74 911, '67 MGB, 91 300D Turbo)
A Blood Test for your oil - www.youroil.net
For Test Results http://members.rennlist.com/oil
Weber Carb Stuff http://members.rennlist.com/webercarbs
http://members.rennlist.com/my_911/Index.htm For my Paint Job Info
___
http://www.striplin.net
For new parts see official list sponsor: http://www.buymbparts.com/ For
used parts email [EMAIL PROTECTED]
To Unsubscribe or change delivery options go to:
http://striplin.net/mailman/listinfo/mercedes_striplin.net
___
http://www.striplin.net
For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]
To Unsubscribe or change delivery options go to:
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--
Sunil Hari
1992 300D 2.5T - 286Kmi.
[EMAIL PROTECTED]
513-205-7474
___
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For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]
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Re: [MBZ] 91 300D Problem at Startup
If it's all carboned up from slow city driving, before you change the plugs
try an Italian tuneup - high RPMs, high load (up a hill and/or 3 of your
heaviest friends), and at least 2 miles of this style of driving. It might
sound like hell after the first time you do this, but if you do it a few
times the amount of carbon should be blown out the exhaust.
On 3/25/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> Thanks Sunil and Dwight & Marshall -
> As I reported, I changed the main and prefilters - without affect.
>
> It sounds like Marshalls suggestion is highly likely -- my wife started
> driving it to work yesterday - it's 55 miles each way at 60-70 mph 99% of
> the time. I'll give that a try to see if it helps. Will try for some
> longer trips also.
>
> Unless I get energetic and decide to change the GPs. ;-) Course, it
> sounds
> like I'll probably need to come up with a suitable reamer to clean out the
> carbon.
>
> Marshalls suggestion fits exactly with my thinking about the problem (tho
> I
> didn't have nearly the precise definition Marshall provided) - the car
> only
> had 99k when I bought it - 99K since being bought in 91 and me buying it
> last month = 99k in 15 years or an average of 6600 miles/yr - making me
> think it was driven very low miles probably around town - which would
> create
> a carbon problem around the GPs. I may take the chicken way out and find
> a
> shop I can trust to change the GPs and ream the appropriate areas -
>
> but 1st we'll try the add'l GP heat time and the highway miles.
>
> Thanks again to all!!
>
> Sincerely,
> Larry T ('74 911, '67 MGB, 91 300D Turbo)
> A Blood Test for your oil - www.youroil.net
> For Test Results http://members.rennlist.com/oil
> Weber Carb Stuff http://members.rennlist.com/webercarbs
> http://members.rennlist.com/my_911/Index.htm For my Paint Job Info
> - Original Message -----
> From: "Sunil Hari" <[EMAIL PROTECTED]>
> To: "Mercedes Discussion List" <[EMAIL PROTECTED]>
> Sent: Friday, March 24, 2006 9:21 PM
> Subject: Re: [MBZ] 91 300D Problem at Startup
>
>
> > Tank strainer issue? Also, from my experience the inline filters clog
> > faster than the spin-on.
> >
> > On 3/24/06, Dwight E. Giles, Jr <[EMAIL PROTECTED]> wrote:
> >>
> >> Larry,
> >> I had a similar problem when I ran the fuel low. Did you change the
> main
> >> filter? On mine inline would look OK but when I changed the cartridge,
> >> it made a big difference.
> >> Dwight
> >>
> >> Dwight Giles, Jr
> >> 1979 240D auto, 250K + miles
> >> 1990 300D 2.5t, 130K miles
> >> Wickford, RI
> >>
> >>
> >> -Original Message-
> >> From: [EMAIL PROTECTED]
> >> [mailto:[EMAIL PROTECTED] On Behalf Of
> >> [EMAIL PROTECTED]
> >> Sent: Friday, March 24, 2006 9:00 PM
> >> To: [EMAIL PROTECTED]
> >> Subject: [MBZ] 91 300D Problem at Startup
> >>
> >>
> >> Howdy -
> >> Well, I've had my new (to me) 91 300D 2.5 Turbo and still am crazy
> about
> >>
> >> this car - told my wife I wouldn't mind finding another and letting my
> >> 78
> >> 240D go. ;-)
> >>
> >> Anyway - I've used 3 bottles of Biocide (purchased from West Marine) --
> >>
> >> added per the instructions - 2 bottles at 1/2 tank - then filled up
> with
> >> the
> >> 3rd bottle added, changed the fuel prefilter and the main filter. But
> >> sometimes - and the problem being intermittant is frustrating - when
> the
> >> car
> >> is first started after sitting for 10+ hours with temp in the 50s or
> >> below,
> >> it acts like it's running on 2 or 3 cylinders with white smoke from the
> >> exhaust. If the accel pedal is held to the floor it will clear up
> >> within 10
> >> seconds or so - then it's ok - it takes off like a scalded dog.
> >>
> >> WHen I changed the fuel filters, I allowed the fuel to drain into a
> >> glass
> >> jar to see if there was any contamination present - if there was
> >> anything
> >> there it was microscopic!
> >>
> >> I thought maybe there was some water in the fuel or filters - but have
> >> run 2
> >> tanks of fuel thru as well as changed the filters. I use fuel bought
> >> from
> >> a Mobil station that gets lots of truck traffic so it's always fresh.
> >>
> >> I'm thinking I migh
Re: [MBZ] 91 300D Problem at Startup
[EMAIL PROTECTED] wrote: Thanks Sunil and Dwight & Marshall - As I reported, I changed the main and prefilters - without affect. It sounds like Marshalls suggestion is highly likely -- my wife started driving it to work yesterday - it's 55 miles each way at 60-70 mph 99% of the time. I'll give that a try to see if it helps. Will try for some longer trips also. Unless I get energetic and decide to change the GPs. ;-) Course, it sounds like I'll probably need to come up with a suitable reamer to clean out the carbon. Marshalls suggestion fits exactly with my thinking about the problem (tho I didn't have nearly the precise definition Marshall provided) - the car only had 99k when I bought it - 99K since being bought in 91 and me buying it last month = 99k in 15 years or an average of 6600 miles/yr - making me think it was driven very low miles probably around town - which would create a carbon problem around the GPs. I may take the chicken way out and find a shop I can trust to change the GPs and ream the appropriate areas - but 1st we'll try the add'l GP heat time and the highway miles. This is exactly the kind of problem that is likely to diminish or go away as the weather warms and as the car is driven MANY miles between cold starts. I would NOT go looking for a reamer, but see how things go over the next few months. Then, IF the problem reappears next fall, consider the reamer (or changing the delivery valve seals and "O" ring). Marshall -- Marshall Booth (who doesn't respond to unsigned questions) "der Dieseling Doktor" [EMAIL PROTECTED] '87 300TD 182Kmi, '84 190D 2.2 229Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi
Re: [MBZ] 91 300D Problem at Startup
Thanks Marshall - sounds like an excellent approach.
Sincerely,
Larry T ('74 911, '67 MGB, 91 300D Turbo)
A Blood Test for your oil - www.youroil.net
For Test Results http://members.rennlist.com/oil
Weber Carb Stuff http://members.rennlist.com/webercarbs
http://members.rennlist.com/my_911/Index.htm For my Paint Job Info
- Original Message -
From: "Marshall Booth" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <[EMAIL PROTECTED]>
Sent: Saturday, March 25, 2006 10:59 AM
Subject: Re: [MBZ] 91 300D Problem at Startup
[EMAIL PROTECTED] wrote:
Thanks Sunil and Dwight & Marshall -
As I reported, I changed the main and prefilters - without affect.
It sounds like Marshalls suggestion is highly likely -- my wife started
driving it to work yesterday - it's 55 miles each way at 60-70 mph 99% of
the time. I'll give that a try to see if it helps. Will try for some
longer trips also.
Unless I get energetic and decide to change the GPs. ;-) Course, it
sounds
like I'll probably need to come up with a suitable reamer to clean out
the
carbon.
Marshalls suggestion fits exactly with my thinking about the problem (tho
I
didn't have nearly the precise definition Marshall provided) - the car
only
had 99k when I bought it - 99K since being bought in 91 and me buying it
last month = 99k in 15 years or an average of 6600 miles/yr - making me
think it was driven very low miles probably around town - which would
create
a carbon problem around the GPs. I may take the chicken way out and find
a
shop I can trust to change the GPs and ream the appropriate areas -
but 1st we'll try the add'l GP heat time and the highway miles.
This is exactly the kind of problem that is likely to diminish or go
away as the weather warms and as the car is driven MANY miles between
cold starts. I would NOT go looking for a reamer, but see how things go
over the next few months. Then, IF the problem reappears next fall,
consider the reamer (or changing the delivery valve seals and "O" ring).
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 182Kmi, '84 190D 2.2 229Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5
turbo 237kmi
___
http://www.striplin.net
For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]
To Unsubscribe or change delivery options go to:
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