What are the major differences between turbo and non-turbo 617s? I'm guessing the IP is different and the compression ratio is different. Did MB use different pistons, or a different crank and rods?

Thanks!

Have you done a search yet on the diesel forum?
If so, let us know so you don't get bashed with "SEARCH NEWB" type comments

I believe a lot of peopel have discussed this...

My apologies.

No need for apologies...
I am just tryin to save you from the hardcore replies of frustration from other members (we like the sticky "Use the Search".
After you read some threads from the search and whanot and have some questions still, come on back and ask them

Why are you wondering the difference? CUrious...

Specifically I was wondering if the IP from a non-turbo 617 would interchange with the turbo version. From the search I learned that the IP's at least use different cams. Since IPs aren't exactly user-serviceable I'm guessing that means no, they don't interchange easily at all.

I was also just curious. It looks like the compression ratios are close (the turbo being only about half a point higher) but that the pistons and crank are setup to handle more heat.

I'll try to be a more conscientious forum-user in the future.

Wow.
Not only did you get sucessful with the search..
you also posted what you found

cool!

Its a niec refresher for all of us...glad your question was answered and welcome to the forum

Oil cooled pistons, sodium filled exhaust valves, nitrided crank, higher capacity oil pump with an oil cooler, different IP with ALDA, bigger air filter and radiator.

Oil cooler is standard on both Turbo and non-turbo engines.
Tony

Would that be an engine oil cooler or a tranny :?:

Oil cooler is standard on ALL automatic transmissions.
I was referring to the Engine oil cooler into which oil flows under thermostat control (>90'C IIRC). On W123 is mounted to LHS of radiator (when viewed from in car)

At altitude (I live in Denver), with the turbo version, MB hid a second engine under the trunk.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Just wanted to confirm it, as I dont see a point for the oil cooler on a non turbo engine, I have the same left mounted oil cooler on my OM616 turbo which uses OM 617 oil pump as well as the oil cooler, incidentally, my temps hardly hit 90c unless I am in 45c weather and even then it goes up to 87c max, my standard running temp is 80c so I guess my oil cooler hardly gets a chance to work.

Use the search function, this topic has been covered like a million times...

Did you read any of the posts apart from the first one?

If not I might advise...just a thought

616 TURBO?