Uh-oh...I think I've got big problems here - 73 220D - Page 2 - PeachParts Mercedes-Benz Forum

kalpol · #16 03-07-2009, 05:10 PM

Quote:

Originally Posted by kerry

If block has a 616 on it, I'm pretty sure that's a 616 engine and not a 615. Others might confirm that.

well here's the number just for kicks : 616 011 1201

At any rate, whatever it is, it still doesn't work.

leathermang · #17 03-07-2009, 05:13 PM

Check your PM 's...
Greg

kerry · #18 03-07-2009, 05:38 PM

If block has a 616 on it, I'm pretty sure that's a 616 engine and not a 615. Others might confirm that.

moon161 · #19 03-07-2009, 07:21 PM

Are the cylinders sleeved? If so, I think it's a 616. I don't think the 615 has sleeves.

t walgamuth · #20 03-07-2009, 07:31 PM

Quote:

Originally Posted by moon161

Are the cylinders sleeved? If so, I think it's a 616. I don't think the 615 has sleeves.

I believe that is correct.

kalpol · #21 03-07-2009, 08:50 PM

Quote:

Originally Posted by t walgamuth

I believe that is correct.

They are not sleeved. I will inspect tomorrow to be positive though. I shoudl see the seam of the sleeve around the cylinder, right?

well like i said, whatever the engine turns out to be, this business of the pistons rising above the block basically hoses me. Whether the crank is bent, the wrong rods or bearings are installed, i can't do anything about it so I'm just going to look for a 240D engine, plop it in, and take the other one apart at some point to solve the mystery.

moon161 · #22 03-07-2009, 08:57 PM

I may actually be confused on that point of no liners on the 615. FSM doesn't seem to make that point. However, 616/7 bores are larger. FSM for 615, 616, 617.91 gives cylinder 1 bores as follows (approximation & english units by yours truly):

615: 87 mm, 3 - 7/16"
616/7: 91 mm, 3 - 9/16"

kerry · #23 03-07-2009, 10:08 PM

The 115 and 123 616 engines are not directly interchangeable I think. Oil filter housings are different if my memory serves me correctly.

Diesel911 · #24 03-08-2009, 12:47 AM

Quote:

Originally Posted by kalpol

Prechambers aren't installed at the moment, but yeah I may have a small problem there since I didn't have the chambers in the head when I sent it. But I'll cross that bridge when I come to it.

I am not sure about your year but on the 84 300D the Pre-combustion Chamber protrusion is checked while the Cylinder Head is off of the Engine.
Also do you have the Factory Service Manual to work from?

clarencethecool · #25 03-08-2009, 07:18 AM

how curious about the pistons peaking above the deck... can connecting rods stretch?? like that?

Sbean · #26 03-09-2009, 02:30 AM

You haven't mentioned going back to the machine shop and asking them what's happening. Have you talked to them about it?
Steve

Diesel911 · #27 03-09-2009, 02:35 AM

Quote:

Originally Posted by clarencethecool

how curious about the pistons peaking above the deck... can connecting rods stretch?? like that?

I was wondering if the Block might be warped.
Bent Crank?
The parts site I looked at said the engine was a 615.

I tried to look up how much above the block the pistons are allowed to go but my CD does not have his Engine on it.
On the other Engines there is a spec for how much the Valves are allowed to protrude from the Cylinder head.

kalpol · #28 03-09-2009, 06:22 PM

Quote:

Originally Posted by Diesel911

I was wondering if the Block might be warped.
Bent Crank?
The parts site I looked at said the engine was a 615.

I tried to look up how much above the block the pistons are allowed to go but my CD does not have his Engine on it.
On the other Engines there is a spec for how much the Valves are allowed to protrude from the Cylinder head.

I think the head is OK - the valves are not above the level of the head. I have no idea what could have happened to the engine, but it's not going to work - when the head is on No 2 and No 3 collide with it, for whatever reason.

...it's a dilemma for sure. It's really too nice to part out, I feel...what is the problem with a 123 616? Does the oil filter housing hit something? Does anyone have a good 115 615 or 616 they'd like to sell?

cjlipps · #29 03-09-2009, 07:02 PM

but the two that are rising above the deck likely have spun bearings. The rod bearing halves will literally stack themselves in the piston side of the rod big-end which effectively makes the rod longer. Seen it in other makes and it's usually caused by oiling problems. Either that or the two that aren't protruding have bent (ie. shortened) rods.
Probably have to pull the pan and the rod caps to determine for sure.
If it was run like this (stacked bearings), the top ring groove is probably beat shut and the crank will have to be resurfaced at the least and probably reground.
Better to find a donor engine IMO.

strelnik · #30 03-09-2009, 07:23 PM

Quote:

Originally Posted by 83240D

I had a similar problem with my 98 Land Rover, I had purchased it for a low price knowing it had a blown head gasket. I then did some searching and found some head gaskets called composite head gaskets, that were stated to be designed for engines milled from .010-.015, They are a little thicker, to compensate for an accidental, or even intentional over sized resurface. I put it back together with the new gaskets, no more contact lock.

Got a source or web site?