since the noise sounds like 3 or 4, you could swap those injectors with 1 and 5 to spread them around, and see if the sound follows...

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Awesome, I'll pick one up tomorrow.

That isn't a bad idea at all. I actually have a couple extra injectors laying around the garage. Okay, stupid question.... do I need to have a new heat shield for every time i change an injector around or can i just use the old ones until I get new ones that will be in the engine permanently?

__________________

'83 300D Turbo Diesel
&
'84 300D Turbo Diesel

While you are in the testing stage swapping Injectors around, no need to change the Heat Shields with new one`s.

When you are done and buttoning it back up, then replace with new one`s.

Before removing the Injectors, with the engine running, crack the Hard Line connection at the Injector
that is causing the problem to see if the noise will stop, or lessen.
This takes the fuel away from that cylinder.


Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

While you do not need a new heat shield while testing injectors, you do need to uncrush the old ones so that they will seal. If you don't uncrush them, they will probably leak and create a new set of problems.

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

I wouldn't drive around with old heat shields, but to isolate a noise, old ones are fine.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

How do you uncrush them? Whang on them with a big hammer?

If so, then how would I know they are crushed back into shape to seal properly?

What if I uncrush too much?


Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

No hammer!

I posted this procedure before. Copied below FYI

"Ball bearing slightly bigger than heat shield hole, supported by a socket (I think 13 mm is right size), squeezed with vise grip. Don't un-crush too much or you will crack it. Do a little at a time and compare to a new heat shield sitting on a nozzle and obtain the same gap. Inspect with a magnifier afterwards that there are no stress cracks. No cracks or gouges = good to go. I have un-crushed heat shields using above procedure and inspected them after running in an engine for 10k miles with no carbon binding, they all lifted out with a magnet. That's prove enough for me that I did a good job un-crushing.

If I have new heat shields, I put them in. If I don't and I need to get the engine running, I un-crush them. So far no problems. Do this at your own risk.

Note: All mating surfaces between heat shields must be clean and spotless before installing the heat shields, whether new or un-crushed."

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

An old heat shield is not going to seal. What happens when a heat shield leaks? Loss of compression? Late combustion? Pinging? Knocking?

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

an old heat shield WILL seal for the purposes of testing a noise movement. NO... it's not a great seal, and it's not a good idea to use it this way beyond testing for noise movement... in other words, move the injector to an adjacent point, torque in the injectors, start the car, see if the noise moved with the move of the cylinder, and shut down the motor. once you have determined what is up... proceed with the repairs, and install new shields, then drive happy.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

For testing, I'd want a great seal, so I'd want either a new heat shield, or if I don't have new on hand, I'd uncrush the old, and not compromise the test.

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

Okay, got injector #3 (left) and #4 (right) pulled out of the engine. There's what looks to be some black oily stuff on the tips of both? Diesel fuel and carbon? It has the consistency of motor oil though?



This is the inside of the #3 collar.



And this is the inside of #4 collar. I feel like the milky-fluid shouldn't be in there. What do you guys think? I guess I need to get the proper collar removal tool to get a better peer into the pre-chamber for bits of material.

__________________

'83 300D Turbo Diesel
&
'84 300D Turbo Diesel

From what i've been reading online, it sounds like one of the balls in either 3 or 4 pre chamber have come loose and are banging around inside of it. The condition of number 4 is pretty sorry so I may go ahead and replace it.

__________________

'83 300D Turbo Diesel
&
'84 300D Turbo Diesel

I'd spray some pb blaster in there then some brake spray and take another picture. it looks like i see the ball in one of the pics.

be sure and spin the motor over a few times before you put the injector back in so you don't hydrolock the motor with brake spray or blaster...

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

The prechambers are TOOOUUUUUGGHHH to change but if you want to try it, I have the expensive tool you can borrow.

You will need two tools to remove the Lock Ring first and one to pull the Pre-Chamber.

The Lock Ring is easy.
The Pre-Chamber will take some work with a Slide Hammer. I have pulled a bunch of them in the yards.

The Pre-Chambers take 15 - 25 whacks on the hammer.

This first one is for the Lock Ring.

Pelican Parts.com - Threaded Pin Wrench Socket for prechamber in cylinder head

The next one is for the Pre-Chamber.

Pelican Parts.com - Extractor Tip for prechamber in cylinder head


There is a bicycle tool for pulling the crank, brand is a parker tool. For around $15, that can be adapted to the
Slide Hammer. Most bike shops will have it.

http://www.peachparts.com/shopforum/1590182-post9.html

http://www.peachparts.com/shopforum/diesel-discussion/207782-diy-617-9xx-prechamber-tools.html

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works