Re: [MBZ] 300D timing chain replacement
I've always done the chain solo. I like to tie or vicegrip the chain to
the cam sprocket before breaking a link. I also tie a small wire to each
side of the chain before i break it. I have learned to stuff rags in the
chaincase cavity in case you DO drop something. (Need to pull the rags out
before you actually roll in the new chain.) I once dropped the center link
down a OM621. It wedged between the teeth of the crank sprocket. I ended
up having to take the engine out and flip it over and pull the pan. Ruined
my day! That was probably about the 5th chain i replaced, and i got
sloppy. Never hurry or get sloppy messing with the chain.
Many years ago i acquired a medical locking forceps that has relief behind
the jaws. I can lock it on one side of the chain, then if i drop it, the
forceps keeps it from going too far, and gives me a handle to pick it up
with. We have far more IT geeks on this list than medicos, so a tool like
this is probably not available to most of us.
Pull the plugs or injectors to get the engine to turn freely. On the 621,
615-617 I might pull the cam followers also, so the cam doesn't jump, but
this is not necessary if you are careful. If my memory is correct, the cam
jumping was what caused me to loose the piece of link into the guts of the
621. (this is a good time to get the nozzles tested!) Generally, if it
needs a chain, it needs nozzles. ~300k for OM 60x id guess. I did this to
my 603 at 300K
I still prefer the repair link to the riveted link. As long as you put it
together right they never come off. You have to get the spring keeper in
just right, and check it.
I really like the bungie cord trick! Learned something new!
Loren
Changed lotsa 621 chains
one 616 chain
one 603 chain
At 09:34 AM 11/10/2005, you wrote:
before doing this because of mileage you should check it for stetch - put
the crank on TDC, remove the cam cover and check the cam washer - it has a V
cut into it that should align with the mark on the cam tower - it'll be off
some if stretched - the amount is measured in degrees - I believe over 5 d
indicates need for change.
As preventive maintanence you might consider changing the tensioner also --
Sincerely,
Larry T ('74 911, '67 MGB, 78 240D)
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: "Fmiser" <[EMAIL PROTECTED]>
To: "Mercedes mailing list" <[EMAIL PROTECTED]>
Sent: Thursday, November 10, 2005 2:01 AM
Subject: Re: [MBZ] 300D timing chain replacement
> rumor has it that Tom wrote:
>
>> Contemplaing doing timing chain overdue at 270K miles. I have been doing
>> some research. It appears a chain buddy;, ie standby helper is required.
>> Can this job be done totally solo? I have not met any of my neighbors or
>> friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or
>> would
>> be worthy or interested in helping.
>>
>> Any thoughts please. Can it be done solo? Thanks
>> Regards Tom Scordato, Bellefonte PA
>
> I did it solo - about 5 times.
>
> The chain that came out of the box was too short. (!!!???!!??)
>
> So I was _sure_ I did something wrong.
>
> New chain in/old chain out; old in/new out; new in/old out, dropped end
> down inside. *sigh*
>
> Recovered chain end, installed old chain, removed injector pump,
> replaced oil pan, ordered a _correct_ chain from Rusty.
>
> Then - newer chain in/old chain out.
>
> Piece of cake!
>
> Just be sure you have the right size replacement chain (136 links),
> and never drop it down inside!!
>
> I did make a handy device to help me guide the new chain in, the old
> chain out, and keep both of them in firm contact with the cam gear -
> with one hand. The other hand could then work the rachet on the power
> steering pump nut to turn the engine.
>
> I've attached a photo. Sorry, archive...
>
>Philip,
>
> -- next part --
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> Name: chain-tool.jpg
> Type: image/jpeg
> Size: 93771 bytes
> Desc: not available
> Url :
>
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>
> To Unsubscribe or change delivery options go to:
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>
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Re: [MBZ] 300D timing chain replacement
http://www.mercedesshop.com/shopforum/showthread.php3?t=126728 has numerous
MB special tools available Free or for Rent. There's a TC link flaring tool
which you;ll need to attach the link to connect the chain ends.
No affiliation, yada, yada -
Sincerely,
Larry T ('74 911, '67 MGB, 78 240D)
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: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 10, 2005 2:15 AM
Subject: Re: [MBZ] 300D timing chain replacement
In a message dated 11/9/2005 6:15:19 P.M. US Mountain Standard Time,
[EMAIL PROTECTED] writes:
Contemplaing doing timing chain overdue at 270K miles. I have been doing
some research. It appears a chain buddy;, ie standby helper is required.
Can this job be done totally solo? I have not met any of my neighbors or
friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or
would
be worthy or interested in helping.
Tom,
I have done 3 chains solo, and never dropped a link. The most recent was
the easiest, due to a tip from one of the listers. I tied the end of a
long
bungee cord overhead and used that to take up the old chain. You tie it
offset from center of the car, and not too high, so that the new chain
always is
pulled over the cam gear. My basket ball pole was handy and I used that.
This frees up you to turn the crank and watch the new chain feed in.
Figure on
moving the bungee hook in the chain about 4 times so you don't have to
stretch it too tight.
Two caveats.
You MUST relieve cranking pressure by pulling the glow plugs (my choice)
or
the injectors. The new chain goes in so much easier, and there is no
chance
of an accidental power stroke.
Before you break the chain, you should always tie the chain ends to the
cam
gear so that if anything goes wrong you still have your timing. Also
make
sure that the service link picks up all the link plates on both chains or
one
will fold back and the result will block the chain from clearing the
crank
gear as clearance is very tight there. Once you have the new chain
attached to
the old chain, and tension on the old chain with the bungee, you can cut
the
ties. Same deal when you are done and ready to splice the chain--tie
those
ends down! Do not trust your grip in this oily environment!
On many models you must remove the chain tensioner, because they have a
stepping mechanism in them that takes up the slack as the chain wears.
You
cannot push this kind back. I like this kind the best because they do not
rattle
when the engine is first started. Many install a new tensioner with any
new
chain job. It is certain that you will see heavy spring wear on your old
one,
should you take the piston out to reload it
Good luck, you can do this!
Jim Friesen
Phoenix AZ
79 300SD, 261 K miles
98 ML 320, 138 K miles
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Re: [MBZ] 300D timing chain replacement
Sigh, I might'swell look into this for myself. Since I'm replacing my
waterpump (housing to the machine shop tomorrow) and all my accessory
belts are off, it'd be easier now I suppose than later. What tools do
I need to check the stretch, and, um, where's the chain located?
(ducks and runs for cover)
Tim
1982 300TD Moby
On 11/10/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> before doing this because of mileage you should check it for stetch - put
> the crank on TDC, remove the cam cover and check the cam washer - it has a V
> cut into it that should align with the mark on the cam tower - it'll be off
> some if stretched - the amount is measured in degrees - I believe over 5 d
> indicates need for change.
>
> As preventive maintanence you might consider changing the tensioner also --
>
> Sincerely,
> Larry T ('74 911, '67 MGB, 78 240D)
> 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: "Fmiser" <[EMAIL PROTECTED]>
> To: "Mercedes mailing list" <[EMAIL PROTECTED]>
> Sent: Thursday, November 10, 2005 2:01 AM
> Subject: Re: [MBZ] 300D timing chain replacement
>
>
> > rumor has it that Tom wrote:
> >
> >> Contemplaing doing timing chain overdue at 270K miles. I have been doing
> >> some research. It appears a chain buddy;, ie standby helper is required.
> >> Can this job be done totally solo? I have not met any of my neighbors or
> >> friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or
> >> would
> >> be worthy or interested in helping.
> >>
> >> Any thoughts please. Can it be done solo? Thanks
> >> Regards Tom Scordato, Bellefonte PA
> >
> > I did it solo - about 5 times.
> >
> > The chain that came out of the box was too short. (!!!???!!??)
> >
> > So I was _sure_ I did something wrong.
> >
> > New chain in/old chain out; old in/new out; new in/old out, dropped end
> > down inside. *sigh*
> >
> > Recovered chain end, installed old chain, removed injector pump,
> > replaced oil pan, ordered a _correct_ chain from Rusty.
> >
> > Then - newer chain in/old chain out.
> >
> > Piece of cake!
> >
> > Just be sure you have the right size replacement chain (136 links),
> > and never drop it down inside!!
> >
> > I did make a handy device to help me guide the new chain in, the old
> > chain out, and keep both of them in firm contact with the cam gear -
> > with one hand. The other hand could then work the rachet on the power
> > steering pump nut to turn the engine.
> >
> > I've attached a photo. Sorry, archive...
> >
> >Philip,
> >
> > -- next part --
> > A non-text attachment was scrubbed...
> > Name: chain-tool.jpg
> > Type: image/jpeg
> > Size: 93771 bytes
> > Desc: not available
> > Url :
> > http://striplin.net/pipermail/mercedes_striplin.net/attachments/20051110/d40c93fc/chain-tool.jpg
> > ___
> > 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
> >
>
>
>
> ___
> 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
>
Re: [MBZ] 300D timing chain replacement
before doing this because of mileage you should check it for stetch - put
the crank on TDC, remove the cam cover and check the cam washer - it has a V
cut into it that should align with the mark on the cam tower - it'll be off
some if stretched - the amount is measured in degrees - I believe over 5 d
indicates need for change.
As preventive maintanence you might consider changing the tensioner also --
Sincerely,
Larry T ('74 911, '67 MGB, 78 240D)
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: "Fmiser" <[EMAIL PROTECTED]>
To: "Mercedes mailing list" <[EMAIL PROTECTED]>
Sent: Thursday, November 10, 2005 2:01 AM
Subject: Re: [MBZ] 300D timing chain replacement
rumor has it that Tom wrote:
Contemplaing doing timing chain overdue at 270K miles. I have been doing
some research. It appears a chain buddy;, ie standby helper is required.
Can this job be done totally solo? I have not met any of my neighbors or
friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or
would
be worthy or interested in helping.
Any thoughts please. Can it be done solo? Thanks
Regards Tom Scordato, Bellefonte PA
I did it solo - about 5 times.
The chain that came out of the box was too short. (!!!???!!??)
So I was _sure_ I did something wrong.
New chain in/old chain out; old in/new out; new in/old out, dropped end
down inside. *sigh*
Recovered chain end, installed old chain, removed injector pump,
replaced oil pan, ordered a _correct_ chain from Rusty.
Then - newer chain in/old chain out.
Piece of cake!
Just be sure you have the right size replacement chain (136 links),
and never drop it down inside!!
I did make a handy device to help me guide the new chain in, the old
chain out, and keep both of them in firm contact with the cam gear -
with one hand. The other hand could then work the rachet on the power
steering pump nut to turn the engine.
I've attached a photo. Sorry, archive...
Philip,
-- next part --
A non-text attachment was scrubbed...
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Type: image/jpeg
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Url :
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Re: [MBZ] 300D timing chain replacement
Sure can. If you are rich (somewhat unlikely if you are driving a 77 300D) you can buy the chain guide that bolts on and holds the chain in place on the cam sprocket. If you are poor like me, just use wire ties or some vise grips (you need three) to clamp the chain to the sprocket. It is also possible to drop BOTH ends of the chain and still end up OK, but I would recommend avoiding doing so Peter
Re: [MBZ] 300D timing chain replacement
In a message dated 11/9/2005 6:15:19 P.M. US Mountain Standard Time, [EMAIL PROTECTED] writes: Contemplaing doing timing chain overdue at 270K miles. I have been doing some research. It appears a chain buddy;, ie standby helper is required. Can this job be done totally solo? I have not met any of my neighbors or friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or would be worthy or interested in helping. Tom, I have done 3 chains solo, and never dropped a link. The most recent was the easiest, due to a tip from one of the listers. I tied the end of a long bungee cord overhead and used that to take up the old chain. You tie it offset from center of the car, and not too high, so that the new chain always is pulled over the cam gear. My basket ball pole was handy and I used that. This frees up you to turn the crank and watch the new chain feed in. Figure on moving the bungee hook in the chain about 4 times so you don't have to stretch it too tight. Two caveats. You MUST relieve cranking pressure by pulling the glow plugs (my choice) or the injectors. The new chain goes in so much easier, and there is no chance of an accidental power stroke. Before you break the chain, you should always tie the chain ends to the cam gear so that if anything goes wrong you still have your timing. Also make sure that the service link picks up all the link plates on both chains or one will fold back and the result will block the chain from clearing the crank gear as clearance is very tight there. Once you have the new chain attached to the old chain, and tension on the old chain with the bungee, you can cut the ties. Same deal when you are done and ready to splice the chain--tie those ends down! Do not trust your grip in this oily environment! On many models you must remove the chain tensioner, because they have a stepping mechanism in them that takes up the slack as the chain wears. You cannot push this kind back. I like this kind the best because they do not rattle when the engine is first started. Many install a new tensioner with any new chain job. It is certain that you will see heavy spring wear on your old one, should you take the piston out to reload it Good luck, you can do this! Jim Friesen Phoenix AZ 79 300SD, 261 K miles 98 ML 320, 138 K miles
Re: [MBZ] 300D timing chain replacement
rumor has it that Tom wrote: > Contemplaing doing timing chain overdue at 270K miles. I have been doing > some research. It appears a chain buddy;, ie standby helper is required. > Can this job be done totally solo? I have not met any of my neighbors or > friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or would > be worthy or interested in helping. > > Any thoughts please. Can it be done solo? Thanks > Regards Tom Scordato, Bellefonte PA I did it solo - about 5 times. The chain that came out of the box was too short. (!!!???!!??) So I was _sure_ I did something wrong. New chain in/old chain out; old in/new out; new in/old out, dropped end down inside. *sigh* Recovered chain end, installed old chain, removed injector pump, replaced oil pan, ordered a _correct_ chain from Rusty. Then - newer chain in/old chain out. Piece of cake! Just be sure you have the right size replacement chain (136 links), and never drop it down inside!! I did make a handy device to help me guide the new chain in, the old chain out, and keep both of them in firm contact with the cam gear - with one hand. The other hand could then work the rachet on the power steering pump nut to turn the engine. I've attached a photo. Sorry, archive... Philip, -- next part -- A non-text attachment was scrubbed... Name: chain-tool.jpg Type: image/jpeg Size: 93771 bytes Desc: not available Url : http://striplin.net/pipermail/mercedes_striplin.net/attachments/20051110/d40c93fc/chain-tool.jpg
Re: [MBZ] 300D timing chain replacement
I would not advise doing it solo. Even with two of us and the chain grabber lead thing it was a touchy situation. There were a few times we had to make sure we had not skipped a tooth. This is a five hand job with two heads and some beer On Wednesday, November 9, 2005, at 05:13 PM, Tom Scordato wrote: Contemplaing doing timing chain overdue at 270K miles. I have been doing some research. It appears a chain buddy;, ie standby helper is required. Can this job be done totally solo? I have not met any of my neighbors or friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or would be worthy or interested in helping. Any thoughts please. Can it be done solo? Thanks Regards Tom Scordato, Bellefonte PA ___ 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 -- Clay Seattle Bioburner 1972 220D - Gump 1995 E300D - Cleo 1987 300SDL - POS - DOA The FSM would drive a Diesel Benz
Re: [MBZ] 300D timing chain replacement
Kaleb said Have you checked to see if its stretched? No Kaleb not yet I will. Valves due for adjustment in three months or so. 10-4 on the two man job. Tom - Original Message - From: "Kaleb C. Striplin" <[EMAIL PROTECTED]> To: "Mercedes mailing list" <[EMAIL PROTECTED]> Sent: Wednesday, November 09, 2005 8:22 PM Subject: Re: [MBZ] 300D timing chain replacement You need 2 people, one to feed chain, one to turn the engine over. First things first though, why are you changing it? Have you checked to see if its stretched? Tom Scordato wrote: Contemplaing doing timing chain overdue at 270K miles. I have been doing some research. It appears a chain buddy;, ie standby helper is required. Can this job be done totally solo? I have not met any of my neighbors or friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or would be worthy or interested in helping. Any thoughts please. Can it be done solo? Thanks Regards Tom Scordato, Bellefonte PA ___ 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 -- Kaleb C. Striplin/Claremore, OK 89 560SEL, 87 300SDL, 85 380SE, 85 300D, 84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D, 76 450SEL, 76 240D, 76 300D, 74 240D, 69 250 Okie Benz Auto parts-email for used parts ___ 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
Re: [MBZ] 300D timing chain replacement
You need 2 people, one to feed chain, one to turn the engine over. First things first though, why are you changing it? Have you checked to see if its stretched? Tom Scordato wrote: Contemplaing doing timing chain overdue at 270K miles. I have been doing some research. It appears a chain buddy;, ie standby helper is required. Can this job be done totally solo? I have not met any of my neighbors or friends/wifes/kids or enemies who gives a rats a-- for my 77 300D or would be worthy or interested in helping. Any thoughts please. Can it be done solo? Thanks Regards Tom Scordato, Bellefonte PA ___ 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 -- Kaleb C. Striplin/Claremore, OK 89 560SEL, 87 300SDL, 85 380SE, 85 300D, 84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D, 76 450SEL, 76 240D, 76 300D, 74 240D, 69 250 Okie Benz Auto parts-email for used parts
