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Check your dipstick
I checked the oil in the 81 today and found it was a quart down so I added that much and then headed down the road to my daughters soccer scrimmage about 25 miles away.
About 5 miles out I noticed the oil pressure guage was behaving very erratically; dropping to 1 then slowly climbing back to 3 , repeatedly. I got a bit concerned and stopped in the next town and opened the hood to find the dipstick was not fully seated in the dip tube by about 1/2" or so. I pushed it completely in and restarted the motor and thankfully that put an end to the flucuating guage. Anybody have an explanation for this?
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
#2
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Is your oil over full now?
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#3
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I will check that
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
#4
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I found that if you don't get the dip stick fully seated, and have a modest amount of blow-by, which my W123's do , then it can puke the dipstick out a ways. Makes one heck of a mess too........
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
#5
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twalgamuth - oil level is between the marks on the dipstick
JimmyL - I thought about blowby pushing up the dipstick but this car has little or no blowby. I think I may not have pushed the dipstick all the way in after adding oil and then checking it. The dipstick was firmly seated after the ride home.
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
#6
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Don't see how a loose dipstick would effect the gauge. I'd keep a very close eye on the oil pressure to see if it repeats.
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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 |
#7
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I have been.
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
#8
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Mine acted the same way when oil pressure relief valve failed. I installed a used one from another 617 and had no more problems (a new one would have been a 3 week wait from MB).
The FSM also mentions that the valve can come loose, it tells you to reinstall it with a threadlocking compound, which my local dealership service dept. assured me was nothing but loctite. The valve is easily accessed by dropping the sump pan and then it just unscrews out of the oil pump. I replaced my sump pan at the same time, a new one was only about $30 or so as I recall, from that internet parts store with the german -sounding name in AZ. |
#9
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Quote:
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1981 240D 143k 4 spd manual -SOLD 2004 VW Jetta TDI 5 speed 300k -still driven daily |
#10
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Quote:
Need to get you to drive my car to see if its got anything going on with it that I've missed. Have you heard anything about there being the late fall technical GTG like last Nov ? Honestly I have not looked for such a conversation yet but thought I would ask you.
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-------------------------------- Eric in Plano,Tx 85 300D 277K overall miles 65K on WVO (2 tank) Rebuilt Transmission at 245k miles. 96 CE LT1 94 Nissian Hardbody 96 F250 XLT PowerStroke (also runs on WVO) |
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