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#1
07-08-2009, 04:46 PM
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IP timing Question - Negative 11 degrees
Ive been driving my 83 300sd for about 6 months now.. I've adjusted valves etc (all the usual stuff) However I recently got the A/C working - I have very little power at take off. I decided to check the IP timing and see if it was close to correct.
I used the bubble method and Im getting bubble cut off at (negative)-11 degrees. (I know this method is not too accurate - but its best I can do right now) Could that even be possible???? I've rotated around twice just to be sure - everything I've read on here says I should be getting very few or no bubbles at 24/25/26 BTDC .... Now 6 months ago I did put a used IP on because the previous one was clogged with veg oil and I could never get number one to pump... Could I have installed the ip off that much and it would still run??? Thanks in advance - I couldnt have done all Ive done without this forum.
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Thomas 2003 Jetta TDi 1983 300SD 1999 Ford Contour - died - Oil pump 1998 Chevy Blazer - money pit 1997 Toyota Corolla - wrecked 1983 Honda Civic - still on the road 1980 Datsun 310 - long dead 1976 Ford Granada - my 1st car - best A/C ever "Listen, strange women lyin' in ponds distributin' swords is no basis for a system of government. Supreme executive power derives from a mandate from the masses, not from some farcical aquatic ceremony." 
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#2
07-08-2009, 04:50 PM
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Quote:
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#3
07-08-2009, 05:00 PM
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Yes 11 after tdc - I think my mercedes manuals consider that -11 ATDC
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Thomas 2003 Jetta TDi 1983 300SD 1999 Ford Contour - died - Oil pump 1998 Chevy Blazer - money pit 1997 Toyota Corolla - wrecked 1983 Honda Civic - still on the road 1980 Datsun 310 - long dead 1976 Ford Granada - my 1st car - best A/C ever "Listen, strange women lyin' in ponds distributin' swords is no basis for a system of government. Supreme executive power derives from a mandate from the masses, not from some farcical aquatic ceremony."
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#4
07-08-2009, 05:26 PM
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I don't know for sure about the OM617, but the first 6.9 IDI Ford I bought was 180 degrees out of time - and it still ran!
Took a shot of ether to get it started, it smoked like a mosquito fogger, and it barely had enough power to get up to 60 mph (with your foot on the floor on level ground), but it still ran. I drove it home like that. Based on that experience and how similar the two engines are in terms of construction and principles of operation, I'm going to go out on a limb here and say that I'll bet an OM617 would run at 11* atdc...
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1984 300 Coupe TurboDiesel Silver blue paint over navy blue interior 2nd owner & 2nd engine in an otherwise 99% original unmolested car ~210k miles on the clock 1986 Ford F250 4x4 Supercab Charcoal & blue two tone paint over burgundy interior Banks turbo, DRW, ZF-5 & SMF conversion 152k on the clock - actual mileage unknown
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#5
07-09-2009, 12:43 AM
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I fixed it in the heat!
Timing issue fixed!! Took the IP out - I hate those bolts on the shutoff valve!! - but its done. I can now do the whole thing in less than an hour... She starts on the first 2 seconds of cranking now!!
Wow does it have some power.. Even with A/C on... No more smoke at idle!!!! No more engine shake.!!! Just to review what I did : in 104 Texas heat!! mind you. The IP was removed and was turned to the index mark and the timing chain / engine was put at 24 btdc and the IP reinstalled - I did notice that the index marks on the cam didnt line up exactly - A little chain stretch I guess - Now its time to: Check and adjust valves but that can wait for a cooler day! Get the horns working and get her inspected.. Ive been "ridin dirty" for two months now.. I would have failed here in Texas for the 'visible smoke"
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Thomas 2003 Jetta TDi 1983 300SD 1999 Ford Contour - died - Oil pump 1998 Chevy Blazer - money pit 1997 Toyota Corolla - wrecked 1983 Honda Civic - still on the road 1980 Datsun 310 - long dead 1976 Ford Granada - my 1st car - best A/C ever "Listen, strange women lyin' in ponds distributin' swords is no basis for a system of government. Supreme executive power derives from a mandate from the masses, not from some farcical aquatic ceremony."
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