Another blowby question - Page 2 - PeachParts Mercedes-Benz Forum

ngarover · #16 02-19-2011, 09:44 PM

Quote:

Originally Posted by mach0415

Its probably close to yours, maybe a little more, but yours has no skip, right? Mine has a completely dead hole. It does not knock, so perhaps an injector is not firing. There is just a string of #@%! that I am going to chase down. Compression test first. If low, I will pull injectors and soak for a week or more in MMO. I would assume that this thing should at least rise above 900 rpms even with a dead hole. I think this is a very neglected 617. While I am at it, timing chain stretch will be checked. If all else shows low, I'll locate a 617 and yank it.

No hole that I can tell. It start up right away, and well, you can hear it run... I've been driving the crap out of it. I've ran at at least 7 tanks of fuel though her so far. I'll be driving it a lot more now that the front suspensions replaced and I can do 70 without shaking all over the place

I'm going to learn how to do my first valve adjustment on it, then do the same on the 85. I just need to find a reasonable place to get the needed wrenches. Going to also pour about a cup of MO in each cylinder and let it sit for a week, see if that help my blow by issue any.

JHZR2 · #17 02-19-2011, 11:16 PM

Quote:

Originally Posted by ngarover

what's interesting is I have a ton of blowby on my 81 300d. There's video showing it puffing out the oil cap, and it tosses a crap load of oil into the air cleaner....

Still, it runs like a clock, smooth as ever, and I just today to it for a 5 hour round trip averaging 60-65mph and only used up half a tank of fuel doing it...

Im the opposite. My 82 uses no oil between changes, and the blowby is so low that I can set the cap on the hole and it won't even bobble around... Yet Im dripping oil out of my turbo from it.

dieseldan44 · #18 02-20-2011, 12:40 AM

Quote:

Originally Posted by ngarover

Video from the day I got it home....
http://www.youtube.com/user/NGARover#p/u/8/E-CZcvp_Ay4

My 82 is just like that.

It has a cylinder at 220 and another at 240.

It runs great - ABOVE about 40-45 degrees

Bet you you can't start that car below freezing without the block heated.

ngarover · #19 02-20-2011, 07:15 AM

Quote:

Originally Posted by dieseldan44

My 82 is just like that.

It has a cylinder at 220 and another at 240.

It runs great - ABOVE about 40-45 degrees

Bet you you can't start that car below freezing without the block heated.

Nope. block heater is my friend. Good thing below zero is a rarity in GA.

mach0415 · #20 02-22-2011, 04:49 AM

I cracked the injector lines open to at least identify the dead cylinder. #3 is the culprit. If I plug the breather, oil pours out of the dipstick tube.

So, now I am actively seeking a transplant.its official, WTB 617. So my question is whether or not a block other than a 617.951 can be used, i.e. one from a 300D and year model changes, etc to go in a W126.