Re: [MBZ] 240D broke

[Jim Cathey via Mercedes]

Or, re-secure the bolt and see how it behaves?

-- Jim
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Re: [MBZ] 240D broke

[Curley McLain via Mercedes]

Well, vac pump, the timer, timer bushing, and IP are all suspect.  When 
I took off the vac pump, the bolt that is supposed to hold the timer to 
the IP fell out.  It was all chewed up, so I'm guessing the IP is 
FUBAR.  The timer is loose and wobbling, so the bushing at least is 
busted.  I hope the block casting is tough in there.  At a minimum, it 
will take a new bushing and IP and bolt.  I am betting the timer is 
messed up too.  The vacuum pump may be salvageable, but I have not 
determined that yet.


Near as I can tell, the bolt came out and this led to the cascade of 
problems.


To change the bushing, the front pan, oil pump and lower rail probably 
have to come off/out.


I have a lot of other stuff to do tomorrow, so I won't know for sure 
until I get the IP out to see the damage inside.



Kaleb C. Striplin via Mercedes 
October 7, 2017 at 4:51 PM
Maybe something broke in the vacuum pump/pump timer area?



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Re: [MBZ] 240D broke

[archer75--- via Mercedes]

 Curley McLain via Mercedes  wrote:
> > this is an engine i got in VA, and rebuilt.  Starts and runs like new 
> > (until yesterday).   Driving yesterday, I heard a sound similar to a timing 
> > chain breaking, falling and then the camshaft breaking, but it was neither 
> > as long or as loud.  Had to ride home on a hook.  This morning I looked at 
> > it between monsoons and the timing chain is intact.  Fuel is being 
> > delivered to the IP, but no fuel from the IP.  Has anyone ever heard of an 
> > IP camshaft breaking?  It appears that I have a problem in the IP or 
> > possibly the timing advance unit.  The engine turns over and the engine 
> > camshaft is ok, and I can see the timing chain in the sprocket, so all is 
> > well there.  Just no fuel delivered at the nozzles.  The primer pump is 
> > nice and firm, so I know the fuel is getting to the IP.
> > Anyone BT, DT?
~
When I bought the first 240D I asked my German Indy if it was as bullet proof 
as the 200. He said it was except for the IP shaft (or something in that area) 
which could break and cost a lot to fix.
I was concerned for a while, but after several hundred thousand miles on two 
240Ds, no problems.
Gerry
Gerry

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Re: [MBZ] 240D broke

[Curley McLain via Mercedes]

The timing advance is pretty robust.  The springs can break, but the IP 
still works.  It is possible something is wrong with the timer.  I will 
probably take off the vac pump first and have a look.  I don't expect to 
see anything out of the ordinary.  This Injection pump does NOT have a 
side panel access, so there is nothing I can see from the outside of the 
pump.  On a 621 or 603 there is an access panel on the side.  No such 
luck on a 616.



Kaleb C. Striplin via Mercedes 
October 7, 2017 at 4:51 PM
Maybe something broke in the vacuum pump/pump timer area?



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Re: [MBZ] 240D broke

[Kaleb C. Striplin via Mercedes]

Maybe something broke in the vacuum pump/pump timer area?

Sent from my iPhone

> On Oct 7, 2017, at 4:43 PM, Curley McLain via Mercedes 
>  wrote:
> 
> this is an engine i got in VA, and rebuilt.  Starts and runs like new (until 
> yesterday).   Driving yesterday, I heard a sound similar to a timing chain 
> breaking, falling and then the camshaft breaking, but it was neither as long 
> or as loud.  Had to ride home on a hook.  This morning I looked at it between 
> monsoons and the timing chain is intact.  Fuel is being delivered to the IP, 
> but no fuel from the IP.  Has anyone ever heard of an IP camshaft breaking?  
> It appears that I have a problem in the IP or possibly the timing advance 
> unit.  The engine turns over and the engine camshaft is ok, and I can see the 
> timing chain in the sprocket, so all is well there.  Just no fuel delivered 
> at the nozzles.  The primer pump is nice and firm, so I know the fuel is 
> getting to the IP.
> 
> Anyone BT, DT?
> 
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> http://www.okiebenz.com
> 
> To search list archives http://www.okiebenz.com/archive/
> 
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 


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