Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-13 Thread dseretakis
Again, good to hear! Sent from my iPhone On Jan 13, 2013, at 10:22 AM, Dieselhead <126die...@gmail.com> wrote: > The crank sprocket would last at least 500k in an OM621. They will last > longer in 616/617. You will wear out 2-3 crank sprockets before you will > wear out the cam and timing s

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-13 Thread dseretakis
Can it be replaced later without breaking the chain apart? Sent from my iPhone On Jan 13, 2013, at 9:48 AM, Max Dillon wrote: > Chain and sprocket wear together, but the socket wears much more slowly. > Take a look while you're there, easy to replace later if needed. Keep in > mind that if

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-13 Thread Dieselhead
The crank sprocket would last at least 500k in an OM621. They will last longer in 616/617. You will wear out 2-3 crank sprockets before you will wear out the cam and timing sprockets. I'd check cam and timing sprockets at a million miles. Chain and sprocket wear together, but the socket w

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-13 Thread Max Dillon
Chain and sprocket wear together, but the socket wears much more slowly. Take a look while you're there, easy to replace later if needed. Keep in mind that if this cam sprocket is worn, so will the IP timer sprocket and the crank sprocket. Those are not so easy to replace. -- Max Dillon Char

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread Dieselhead
What about cam sprocket? What's likelihood of wear on that at 250K miles? Sent from my iPhone Zero Never heard of one needing to be replaced. I have replaced one crank sprocket, but it has twice the engagement, and more torque on it. ___ http://www.okie

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread dseretakis
What about cam sprocket? What's likelihood of wear on that at 250K miles? Sent from my iPhone On Jan 12, 2013, at 9:04 PM, Dieselhead <126die...@gmail.com> wrote: > The lower rails in the block don't wear much. At 250k the banana rail is a > tossup. I'd order a new one, and not feel bad if I

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread Dieselhead
The lower rails in the block don't wear much. At 250k the banana rail is a tossup. I'd order a new one, and not feel bad if I didn't use it. I have some extra rails I didn't use on the M116. Too hard to get to in the block, and on inspection, not worn badly; so I didn't use them. On the

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread dseretakis
Ok good to know. I wont bother with lower rails then. To change the banana rail, it looks like the cam sprocket has to be removed. Should I just order a new one or use old? Not sure about wear. Car has around 250K miles. Sent from my iPhone On Jan 12, 2013, at 6:27 PM, Dieselhead <126die...@gma

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread Dieselhead
Generally, you don't change the rails in the block unless you have the block out to work on it. You can change the banana rail with the head on, but the others...forget about it. If the engine had 400k or 500k miles on it, that'd be a different story. at under 250k there should be no rea

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread Rich Thomas
Well if it is like the 300D you just need to remove the pump from the front of the block, undoing 6 or 8 cap screws (a wobble socket extender works well) then take it off. Make sure everything is clean so no crap falls in the hole. Putting it back on it helps to rotate the engine so the cam i

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread Andrew Strasfogel
240D On Sat, Jan 12, 2013 at 5:10 PM, Rich Thomas wrote: > what kind of car is it? On the TD and the SD you basically just undo the > cap screws holding it on, after you get some stuff out of the way. > > --R > > On 1/11/13 6:35 PM, dsereta...@yahoo.com wrote: >> >> So planning ahead on my timin

Re: [MBZ] Vacuum pump diaphragm removal.

2013-01-12 Thread Rich Thomas
what kind of car is it? On the TD and the SD you basically just undo the cap screws holding it on, after you get some stuff out of the way. --R On 1/11/13 6:35 PM, dsereta...@yahoo.com wrote: So planning ahead on my timing chain replacement, I'm wondering what is involved removing the vacuum

[MBZ] Vacuum pump diaphragm removal.

2013-01-11 Thread dseretakis
So planning ahead on my timing chain replacement, I'm wondering what is involved removing the vacuum pump. The shop manual (BBB) states that removing the pump is necessary to replace the lower two slide rails but I can't find the procedure for its removal in the manual. Also, these rails are dow