Hello! And question...
Hello! And question...
I have a om617.952 that I swapped into my W460 G wagen. I was just going through a tune up, valve adjust, diesel purge, fuel pump timing (MW pump), filters etc. And while I was checking the cam timing/chain stretch, this is what I found. As a note, I slid the cam gear back enough to look at the woodruff key which as far as I can tell is not an offset key (I figure I would be able to see the offset step pretty readily.)
![[Image: 7187460151_78d67aae56_z.jpg]](http://farm8.staticflickr.com/7099/7187460151_78d67aae56_z.jpg)
![[Image: 7372689634_08c1875ae0_z.jpg]](http://farm8.staticflickr.com/7214/7372689634_08c1875ae0_z.jpg)
What does this mean? Shouldn't it read 2 to 7 degrees or so? It looks like -3 or so. Is this bad? Will it really affect anything?
Engine runs well.
Been lurking a while, but have a question.
I have a om617.952 that I swapped into my W460 G wagen. I was just going through a tune up, valve adjust, diesel purge, fuel pump timing (MW pump), filters etc. And while I was checking the cam timing/chain stretch, this is what I found. As a note, I slid the cam gear back enough to look at the woodruff key which as far as I can tell is not an offset key (I figure I would be able to see the offset step pretty readily.)
What does this mean? Shouldn't it read 2 to 7 degrees or so? It looks like -3 or so. Is this bad? Will it really affect anything?
Engine runs well.
http://www.peachparts.com/Wikka/OM617TimingChainStretch
Here is what mine looks like, only a couple degrees out.
http://www.superturbodiesel.com/std/thre...l#pid30160
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
06-18-2012, 01:47 AM #2How is that? Can you offset the cam timing the wrong way???? I dunno. Here is a link on what it should look like
http://www.peachparts.com/Wikka/OM617TimingChainStretch
Here is what mine looks like, only a couple degrees out.
http://www.superturbodiesel.com/std/thre...l#pid30160
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Also, maybe somebody replaced the timing chain at home and got the cam offset wrong?
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
06-18-2012, 08:35 PM #3I'm confused, which edge of the thingy are we supposed to be reading from? Left or right or middle?
Also, maybe somebody replaced the timing chain at home and got the cam offset wrong?
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
(06-18-2012, 08:35 PM)sassparilla_kid I'm confused, which edge of the thingy are we supposed to be reading from? Left or right or middle?
Also, maybe somebody replaced the timing chain at home and got the cam offset wrong?
My understanding is to read the flat side. Skip a tooth on the camshaft and you jump 18* crank timing, advanced or retarded depending on which way you skip it. Seeing as how it's only a few degrees off, I don't think it's possible that's what happened.
And yes, depending on which way you put the offset woodruff key in, you can advance or retard.
I guess the answer to my question is that I could put in an offset woodruff key to bring it back to +2* or so, but it runs well so I'm not too worried about it.
(06-18-2012, 08:35 PM)sassparilla_kid I'm confused, which edge of the thingy are we supposed to be reading from? Left or right or middle?
Also, maybe somebody replaced the timing chain at home and got the cam offset wrong?
My understanding is to read the flat side. Skip a tooth on the camshaft and you jump 18* crank timing, advanced or retarded depending on which way you skip it. Seeing as how it's only a few degrees off, I don't think it's possible that's what happened.
And yes, depending on which way you put the offset woodruff key in, you can advance or retard.
I guess the answer to my question is that I could put in an offset woodruff key to bring it back to +2* or so, but it runs well so I'm not too worried about it.
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