Can someone tell me the best specs for a 27mm socket (depth, etc.) to turn the crankshaft on a 602 engine? Ideally, I'd like to be able to do this without removing the fan. But I understand it's kind of tight in there.

Is 1/2" drive large enough for this?

Thanks.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 160k miles
06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 79k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

I used the same one I used to remove my Injectors (1-1/16").

A regular socket with a 1/2" drive Extension will work.

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84 300D, 82 Volvo 244Gl Diesel

A socket no more than 2" tall is a little easier to use than a deep/injector socket, particularly if you have an 11 blade fan

Is 1/2" drive small enough? Do you mean big enough? You're not going to find a 3/8" drive 27mm/1-1/16" socket anytime soon. I have no problem spinning the engine with a 12" ratchet and I'm not strong in any sense of the word. And yes, my engine has decent compression

Sixto
87 300D

Like I said, large enough. I just didn't know how much leverage I would need. Sounds like 1/2" will work fine.

Are you able to get the socket in there and on the bolt without removing the shroud? On the 602 it looks difficult.

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 160k miles
06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 79k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

I assure you, it's tighter in a 603 It takes a bit... okay, a lot of wiggling. Sometimes I set the socket in place then 'click' on the ratchet.

[edit] Just went out to try it. My Craftsman 27mm socket is 41mm tall. Set the socket on the ratchet, send the ratchet up to the pulley from the alternator side where there's more room, set the socket on the crank bolt. In 603, there's about an inch between the shroud and the pulley, just room for the ratchet handle.

Sixto
87 300D

That's good to know....I'm trying to avoid messing with fan and/or shroud (although I'm assured that's not that difficult).

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 160k miles
06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 79k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Here we go:







Next photo series, how to replace a front crank seal

Sixto
87 300D

Nice finale Sixto

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1985 300D 198K sold
1982 300D 202K
1989 300E 125K
1992 940T

"If you dont have time to do it safely, you dont have time to do it"

"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."

That's great to be able to quantify things like that....I'll just get one exactly that length. Might get a flex head breaker bar while I'm at it.

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 160k miles
06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 79k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife