I got a couple of cheap India wrenches at HF or a pawn shop or something
for like a $USbuck apiece and put the torch to them to bend them to the
proper angles to do the job easier. If you have a tight space you could
cut one down too. I had done the job once before on the 300TD with
regular wrenches and it stimulated Foul Oaths; whereas, the bent
wrenches made it a lot easier the second time I did it.
--R
On 7/14/14 3:54 PM, Randy Bennell via Mercedes wrote:
I finally got to work on this poor old car and pulled the cam cover
off and started on the valves this weekend.
I ran out of time so it is sitting in the garage waiting for me to
come back to it.
I have 3 valves left to adjust. The intake on 4 and on 5 and the
exhaust on 5.
I sort of got stalled out on the exhaust on 5 as it is very tight to
work in there. The valve is up against the cam tower and the wrenches
are long enough that they bump into a support from the firewall and a
wiring harness.
I have been digging around for some other wrench that may work better.
I have a short 14 mm and will try it next. If that does not do it,
then I may be looking for a junk 14 mm to see if I can modify it some.
All of the valves so far have been tight except for one. The intake on
1 was on spec at .004.
The exhaust valves should be .012 but have mostly been .009.
The intakes are supposed to be .004 but are too tight to read with a
feeler gauge.
Turning the engine over by using the nut on the end of the power
steering pump worked fine after I figured out how to do it. The pump
is mounted low on the driver's side of the car so there is not much
room to reach in. I have a fairly long 22 mm combination wrench and it
worked on the box end but not well due to the angle of the handle. I
mucked about trying other wrenches like a crowfoot on a breaker bar
but nothing really fit. I finally tried using the open end of the
wrench and it worked fine. A bit slow as I can only move it a bit and
then have to re-set the wrench but not too bad all things considered.
I just did the valves in the order that they came up on the cam and
not in number order so I did not turn the cam any more than necessary.
I hope to do the last 3 this evening so I can put it all back
together. The only disturbing part has been that something appeared to
fall between the injection pump and the block. I have no idea what as
I did not see what it might have been and have no idea what might be
missing. I see nothing on the floor under the car and I can see
nothing in between the engine and the pump. I will fish around with my
magnet but since I don't know what I am looking for, I don't even know
if it might be magnetic etc. Perhaps when I put it back together,
there will be something obviously missing.
Randy
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