THE "Procedure" for torquing the DV holders in the writeup i sent you on
the list. I do the first torque to about 12-15 ft-lb, then the second
to 22 and the third to 22 as specified. It is to make sure the copper
ring seals well and is centered.
By in sequence, I just meant in order, 1-5; or 5 to 1 if you prefer. It
is not like head bolts. Or you could Zundfogle it! (firing order)
that is up to you!
And, yes, I have quieted a noisy result, by simply loosening the DV
holders and re torquing them to 22 ft lb, or even 20. I had one pump I
could not get to quiet down at 22 ft lb. but at 20 it was fine.
Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>
January 22, 2017 at 10:48 AM
So that's the "Procedure" that was mentioned earlier in this discussion?
I'll add new o-rings as well.
Is there a sequence in the Pressure Valves or can I start with #1 and
go one after another til I get to #5?
LarryT
91 300D 2.5T
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Curley McLain <mailto:126die...@gmail.com>
January 22, 2017 at 9:01 AM
The orings generally get chewed up on removal, even if new. I always
replace them. Orings are relatively cheap. The cost of having to
redo the job far outweighs the cost of 6 or 7 orings and copper seals.
one at a time is good, but I do the torque sequence together. In
other words, put them all in finger tight, then follow the torque
instructions for the whole bunch in sequence.
Peter Frederick via Mercedes <mailto:mercedes@okiebenz.com>
January 22, 2017 at 8:39 AM
Absolutely use new copper seals, the o-rings are probably fine.
I do one at a time.
New springs are a good idea, too, as they can also cause uneven idle
due to different spring strength from spring to spring allowing
slightly different injection timing at idle (same as opening pressure
on injectors). An annoyance, but that 5 cylinder is prone to vibration
at idle anyway and you don't want more.
Peter
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