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#16
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No, the next step is not a compression test. The engine starts cold, so the compression is fine.
The next step is to check the fuel pressure between the secondary and the IP. The lack of sufficient fuel is still the most likely culprit...........the reason is still uncertain. |
#17
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I'd replace the lift pump before replacing the IP.
__________________
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 |
#18
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I will not start cold now.
I will rig a gauge between secondary and IP and post results. |
#19
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You appear to be determined to blame the IP. They seldom fail like you describe. Removing hard lines etc will only mask the problem.
The idea of attempting to start it with a fuel feed from a bottle is a good one. if it needs a kick to get it going give it a good spray of WD40 in the air inlet while some one is cranking with their foot to the floor. If it does start, dont try & let it idle. 2000 rpm is a good speed for the first 5 minutes provided you have oil pressure.
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#20
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Actually I am determined NOT to blame the IP which is why I am here asking questions.
I have been working on MB diesels for 20 years and for the life of me cannot figure the relationship between a broken oil line and a fuel system issue occurring at the exact same time, other than oil feed to the IP. I appreciate any help and all suggestions and will try them all before I remove the IP, been there, done that, no desire to do it again. I will bottle feed her tonight and hope for the best. |
#21
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Call me
Quote:
TECHNICAL SUPPORT whunter ASE Master Mechanic Mon-Fri 9:00a-6:00p ET Cell phone: 248-850-7027 .
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
#23
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Maybe the lift pump failed, causing the engine which was running at high rpm's to lurch which was the straw which broke the camel's back for the oil line??????
__________________
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 |
#24
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Well after a long talk with Ron this afternoon, I checked a bunch of things in the fuel system:
1) Fuel flow test....filled a pint jar in about 10 seconds 2) Fuel pressure between secondary and IP abut 22 psi 3) Checked filters for sludge dirt etc. Fuel system seems to pass all tests. Started it and ran it at 2000 rpm for about 15 minutes, when it was up to temp the oil pressure started fading and it started running rough, let off the throttle and it stalled. Started it again and oil pressure fluctuating more and I shut it down. Per my discussion with Ron, I think I spun a bearing. Although it does not knock or seize he says this is typical. Looks like I'm pulling the engine this winter. I will post an update when I open her up. Thank all for the help! |
#25
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Hmm
Quote:
Sad to hear that diagnosis. Glad I could help you. .
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ Last edited by whunter; 10-03-2012 at 02:01 AM. |
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