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#136
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Your low-side pressure appears correct, per chart below. You might be looking at a T-P chart for the refrigerant itself. The fluid in the condenser runs much hotter than the ambient temperature. The chart below is probably for a typical condenser, and ours aren't ideal for R-134A so might run higher pressure. I ran Duracool in my 85 300D and worked great until the R4 compressor seized (common). I wouldn't want to run higher than 250 psi, especially with an R4 compressor. I converted my 2002 T&C minivan to Duracool a few weeks ago after the compressor failed (flushed & used mineral oil). The low side runs 20-30 psi and high side 120-200 psi and cools OK. Both gages read ~80 psi when off. Your gage kit looks like my Harbor Freight one. I need to wiggle the connectors a bit to get them to snap on the port, so you might not have fooled with it enough.
Good idea to keep the "blue saucer". I understand it is mainly a vacuum amplifier, so the VCV itself doesn't have to directly supply the modulator. It also brings the turbo boost into the tranny equation, which seems good. Indeed, I pulled the setup to put on my 84 300D, but they asked $50 at the counter so I left it. However, if it truly does smooth shifts, that would be bad for tranny life (worn clutch plates). My shifts are noticeable (good). I plugged off the ARV port on the turbo, and removed most of the emissions controls, as recommended here. Good you don't have the CA 85 model. Mine was. The air filter is $45 special order, but it is good that it doesn't shake like the engine mounted ones. I put in 1983 engine and regular filter in the car after mine failed. The fuse-looking thing near your battery terminals is an electrical connector. I recall it goes to the temperature sensor near the thermostat housing, which I think is for the dash gage. My 85 engine had another temp sensor on the driver's side of the block, but the 83 engine doesn't have that sensor. I think that one is part of the emissions controls. Both my 84 & 85 engines have the rack position sensor on the injector pump, as I recall, but the 83 doesn't. I vaguely recall that is for the emissions control too. |
#137
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BillGrissom, you are right. I was looking at the P/T for R12 instead of 134A. Would like it to cool better than 53F vent temp. Add more 134?
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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 |
#138
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Quote:
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
#139
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Quote:
No did not name her, in keeping with tradition. AC is acceptably cool after the added charge which is nice.
__________________
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 |
#140
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Especially with the heat we have had here in CT the past week.....LUCKY. The coolness of my cabin is related to the speed I travel (for now)
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#141
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Sounds like you need to "Sandenize" your 'Benz.
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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 |
#142
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My R4 is working ok with 134A. If it ever craps out I may consider your brackets. I have a few Sanden SD508's from 91-92 VW Jetta diesels. Will they work with your bracket?
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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 |
#143
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My odometer decided to stop. I did this same fix to my first Mercedes (83 300D) back in 2006.
Pics of tools used to punch out the shaft and knurl it so it bites the pot metal gear, punching it back in. Pics not in any kind of order.
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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 |
#144
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As long as the head is not the long one found on the earlier VW's, it should work fine. You will need the rear port "K" head...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 |
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