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#61
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#62
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did you test thermostat in boiling water before installing? please describe differences in symptoms running with and without the thermostat. use your ir thermometer to check different parts of the radiator. it should be hottest at the top and get cooler as coolant flows towards the bottom.
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#63
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Quote:
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#64
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Answer
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Remove three of the four bolts holding the base to the water pump. Loosen the fourth bolt enough to tilt / dismount the assembly. Cautious angle / blade motion will slip the assembly out, without removing anything else. .
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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/ |
#65
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The head gasket was actually bad. I believe the clogged radiator caused the gasket to fail....Rich
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All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#66
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I used wahler (116 33017 087). I remember reading that some thermostats run hotter. The wahler was the correct one no?
The car warms up much faster now. That's really the only difference I noticed. So is removing the fan clutch a quick job? I can't be working on my car for hours on the street. If it take 30mins to remove, that's fine. Sounds like a quick job if it's only 4 bolts. Are these bolts likely to fail like the thermostat housing bolts? I'm going to order the heat gun. Is it showing bad form if I just replace the fan clutch with a new one? Should it be just part of maintenance to change it? I will drive the car around sometime today and test again with my ir gun and give you guys exact temps.
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1984 300td euro turbo |
#67
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merc does need the thermostat, reason as there is a shunt allows water to recirculate when cold and thermostat not open,
thats the reason our T has 2 pieces, it looks like a valve at the end, is to block water to re-circulate when hot. another reason is your rad is plugged or semi, sometimes feel your hand down the rad fins when eng is****** not running!!!! u may feel some are is still cold , reason as hot water is not passing thru the whole rad, only passing on selected area. u need a new rad or try reverse flush a bit. Quote:
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#68
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Please do, and check both sides of the radiator. If SD300 and I are correct, you will see one side colder than the other....Rich
__________________
All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#69
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Ok here are the radiator temps. The car was at 85c.
Top driver's side 53.3 Bottom driver's side 52.3 Top passenger side 61.3 Bottom passenger side 46.5 How are these temps?
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1984 300td euro turbo |
#70
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I am not sure if those numbers would be the same for a known good radiator, but someone with an IR meter could tell you. On a side note, I just got finished with replacing the radiator in my neighbors (Wade) car, and I think it fixed the problem. The radiator feels cold all across the bottom, and hot at the top. This is after a hard drive down the highway. The temp gauge hovered around 100, and went up and down from there. It went about half way between 100 and the red mark, and that is when I stopped and felt the radiator. The engine did not feel overly hot, and nothing like it was boiling over. I am almost positive the old radiator was partly plugged. I will replace the thermostat anyway, just for good measure. I believe you have a plugged radiator based on my experience because of the same symptoms the cars are/were having...Rich
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All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#71
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From all I've read, these 617 engines (cast iron head/block) can take a lot of abuse as far as overheating and still be ok. They supposedly can run up to before the red line on the coolant temp gauge and still survive. Did your friend severely overheat his engine? What if you replaced the radiator first before replacing the head gasket? Maybe the head gasket was not necessary? I guess we will never know.
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#72
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Your car was not overheating last summer when I fixed your fuel problems? Did it one day start to overheat all by itself or were there some other related incidence? Did you run low on coolant? Is it currently losing coolant?
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#73
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Hey Funola. I have a dentist appointment today so I'll drive the car hard on the way home and check the temps again. Ya the car has had overheating problems for about 2 years. I just drove the car with the heat on high with only the passenger vent open and the windows down. Sweating like a maniac. The coolant level is always the same. Not low. I don't lose coolant. I can't remember when the car started overheating. It just suddenly one day started.
There's a thread somewhere where I suspected it was a bad temp sender. I bought one but the readings I was getting from it were extremely low. I drove the car a bit with it on. A car next to me at a red light said I was losing coolant all over the road. So I pulled over, refilled it, waited till the car cooled, and drove it straight home. I suspect that I left the cap loose since it was not on properly when I pulled over.
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1984 300td euro turbo |
#74
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How much coolant did you lose, how much did you have to add?
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#75
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It was about a liter
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1984 300td euro turbo |
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